./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/neural-networks/log_4_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/neural-networks/log_4_safe.c-amalgamation.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 191893af89e745e65c72b504e763dfd908536e4c3bc0a58c22606428a6927de5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 13:45:00,357 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 13:45:00,423 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 13:45:00,430 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 13:45:00,430 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 13:45:00,454 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 13:45:00,455 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 13:45:00,455 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 13:45:00,455 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 13:45:00,455 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 13:45:00,456 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 13:45:00,456 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 13:45:00,456 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 13:45:00,456 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 13:45:00,457 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 13:45:00,457 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 13:45:00,457 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 13:45:00,457 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 13:45:00,457 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 13:45:00,457 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 13:45:00,457 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 13:45:00,457 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 13:45:00,457 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 13:45:00,457 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 13:45:00,457 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 13:45:00,457 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 13:45:00,458 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 13:45:00,458 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 13:45:00,458 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 13:45:00,458 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 13:45:00,458 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 13:45:00,458 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 13:45:00,458 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 13:45:00,459 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 13:45:00,459 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 13:45:00,459 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 13:45:00,459 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 13:45:00,459 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 13:45:00,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 13:45:00,459 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 13:45:00,459 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 13:45:00,459 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 13:45:00,459 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 13:45:00,459 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-jdk21/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 -> 191893af89e745e65c72b504e763dfd908536e4c3bc0a58c22606428a6927de5 [2025-02-05 13:45:00,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 13:45:00,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 13:45:00,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 13:45:00,730 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 13:45:00,730 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 13:45:00,732 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/neural-networks/log_4_safe.c-amalgamation.i [2025-02-05 13:45:01,988 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e97be4511/aa96ba4cc7c144cbb4a475414eae45cb/FLAGaf3ce288d [2025-02-05 13:45:02,342 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 13:45:02,343 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/neural-networks/log_4_safe.c-amalgamation.i [2025-02-05 13:45:02,361 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e97be4511/aa96ba4cc7c144cbb4a475414eae45cb/FLAGaf3ce288d [2025-02-05 13:45:02,566 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e97be4511/aa96ba4cc7c144cbb4a475414eae45cb [2025-02-05 13:45:02,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 13:45:02,570 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 13:45:02,571 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 13:45:02,571 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 13:45:02,575 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 13:45:02,576 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 01:45:02" (1/1) ... [2025-02-05 13:45:02,577 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b544826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:02, skipping insertion in model container [2025-02-05 13:45:02,577 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 01:45:02" (1/1) ... [2025-02-05 13:45:02,615 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 13:45:02,992 WARN L1731 CHandler]: Possible shadowing of function y1 [2025-02-05 13:45:02,996 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/neural-networks/log_4_safe.c-amalgamation.i[63189,63202] [2025-02-05 13:45:02,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 13:45:03,006 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 13:45:03,057 WARN L1731 CHandler]: Possible shadowing of function y1 [2025-02-05 13:45:03,059 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/neural-networks/log_4_safe.c-amalgamation.i[63189,63202] [2025-02-05 13:45:03,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 13:45:03,156 INFO L204 MainTranslator]: Completed translation [2025-02-05 13:45:03,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:03 WrapperNode [2025-02-05 13:45:03,158 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 13:45:03,159 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 13:45:03,159 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 13:45:03,159 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 13:45:03,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:03" (1/1) ... [2025-02-05 13:45:03,186 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:03" (1/1) ... [2025-02-05 13:45:03,207 INFO L138 Inliner]: procedures = 557, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2025-02-05 13:45:03,209 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 13:45:03,210 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 13:45:03,210 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 13:45:03,210 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 13:45:03,216 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:03" (1/1) ... [2025-02-05 13:45:03,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:03" (1/1) ... [2025-02-05 13:45:03,218 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:03" (1/1) ... [2025-02-05 13:45:03,234 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2025-02-05 13:45:03,235 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:03" (1/1) ... [2025-02-05 13:45:03,235 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:03" (1/1) ... [2025-02-05 13:45:03,238 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:03" (1/1) ... [2025-02-05 13:45:03,239 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:03" (1/1) ... [2025-02-05 13:45:03,239 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:03" (1/1) ... [2025-02-05 13:45:03,242 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:03" (1/1) ... [2025-02-05 13:45:03,243 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 13:45:03,244 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 13:45:03,244 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 13:45:03,244 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 13:45:03,249 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:03" (1/1) ... [2025-02-05 13:45:03,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 13:45:03,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 13:45:03,281 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-05 13:45:03,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-05 13:45:03,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 13:45:03,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 13:45:03,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 13:45:03,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 13:45:03,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-05 13:45:03,403 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 13:45:03,406 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 13:45:03,485 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2025-02-05 13:45:03,486 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 13:45:03,494 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 13:45:03,495 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 13:45:03,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 01:45:03 BoogieIcfgContainer [2025-02-05 13:45:03,495 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 13:45:03,498 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 13:45:03,498 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 13:45:03,502 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 13:45:03,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 01:45:02" (1/3) ... [2025-02-05 13:45:03,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cbc6e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 01:45:03, skipping insertion in model container [2025-02-05 13:45:03,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:03" (2/3) ... [2025-02-05 13:45:03,504 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cbc6e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 01:45:03, skipping insertion in model container [2025-02-05 13:45:03,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 01:45:03" (3/3) ... [2025-02-05 13:45:03,505 INFO L128 eAbstractionObserver]: Analyzing ICFG log_4_safe.c-amalgamation.i [2025-02-05 13:45:03,519 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 13:45:03,521 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG log_4_safe.c-amalgamation.i that has 1 procedures, 12 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-05 13:45:03,568 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 13:45:03,581 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;@6a36aa4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 13:45:03,582 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 13:45:03,585 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 13:45:03,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-05 13:45:03,590 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 13:45:03,591 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-05 13:45:03,591 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 13:45:03,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 13:45:03,597 INFO L85 PathProgramCache]: Analyzing trace with hash 748486536, now seen corresponding path program 1 times [2025-02-05 13:45:03,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 13:45:03,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978332058] [2025-02-05 13:45:03,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 13:45:03,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 13:45:03,672 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-05 13:45:03,683 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-05 13:45:03,683 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 13:45:03,683 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 13:45:03,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 13:45:03,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 13:45:03,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978332058] [2025-02-05 13:45:03,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978332058] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 13:45:03,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 13:45:03,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 13:45:03,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251130452] [2025-02-05 13:45:03,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 13:45:03,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 13:45:03,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 13:45:03,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 13:45:03,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 13:45:03,758 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 13:45:03,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 13:45:03,770 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2025-02-05 13:45:03,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 13:45:03,772 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-02-05 13:45:03,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 13:45:03,777 INFO L225 Difference]: With dead ends: 20 [2025-02-05 13:45:03,778 INFO L226 Difference]: Without dead ends: 8 [2025-02-05 13:45:03,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 13:45:03,785 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 13:45:03,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 13:45:03,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2025-02-05 13:45:03,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2025-02-05 13:45:03,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 13:45:03,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2025-02-05 13:45:03,812 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 7 [2025-02-05 13:45:03,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 13:45:03,812 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2025-02-05 13:45:03,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 13:45:03,813 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2025-02-05 13:45:03,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-05 13:45:03,813 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 13:45:03,813 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-05 13:45:03,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-05 13:45:03,814 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 13:45:03,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 13:45:03,814 INFO L85 PathProgramCache]: Analyzing trace with hash 748516327, now seen corresponding path program 1 times [2025-02-05 13:45:03,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 13:45:03,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820643007] [2025-02-05 13:45:03,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 13:45:03,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 13:45:03,830 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-05 13:45:03,841 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-05 13:45:03,842 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 13:45:03,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-05 13:45:03,842 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-05 13:45:03,848 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-05 13:45:03,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-05 13:45:03,858 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 13:45:03,859 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-05 13:45:03,875 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-05 13:45:03,876 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-05 13:45:03,877 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-05 13:45:03,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 13:45:03,882 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-05 13:45:03,910 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-05 13:45:03,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.02 01:45:03 BoogieIcfgContainer [2025-02-05 13:45:03,914 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-05 13:45:03,915 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-05 13:45:03,915 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-05 13:45:03,915 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-05 13:45:03,916 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 01:45:03" (3/4) ... [2025-02-05 13:45:03,918 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-05 13:45:03,919 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-05 13:45:03,920 INFO L158 Benchmark]: Toolchain (without parser) took 1349.24ms. Allocated memory is still 167.8MB. Free memory was 130.0MB in the beginning and 128.6MB in the end (delta: 1.4MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2025-02-05 13:45:03,920 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 13:45:03,921 INFO L158 Benchmark]: CACSL2BoogieTranslator took 587.21ms. Allocated memory is still 167.8MB. Free memory was 129.5MB in the beginning and 76.1MB in the end (delta: 53.5MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-02-05 13:45:03,921 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.67ms. Allocated memory is still 167.8MB. Free memory was 76.1MB in the beginning and 73.5MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 13:45:03,921 INFO L158 Benchmark]: Boogie Preprocessor took 33.40ms. Allocated memory is still 167.8MB. Free memory was 73.5MB in the beginning and 72.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 13:45:03,922 INFO L158 Benchmark]: IcfgBuilder took 251.40ms. Allocated memory is still 167.8MB. Free memory was 72.2MB in the beginning and 62.4MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-05 13:45:03,922 INFO L158 Benchmark]: TraceAbstraction took 416.17ms. Allocated memory is still 167.8MB. Free memory was 61.5MB in the beginning and 129.5MB in the end (delta: -68.0MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2025-02-05 13:45:03,923 INFO L158 Benchmark]: Witness Printer took 3.84ms. Allocated memory is still 167.8MB. Free memory was 129.5MB in the beginning and 128.6MB in the end (delta: 980.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 13:45:03,924 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 587.21ms. Allocated memory is still 167.8MB. Free memory was 129.5MB in the beginning and 76.1MB in the end (delta: 53.5MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.67ms. Allocated memory is still 167.8MB. Free memory was 76.1MB in the beginning and 73.5MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.40ms. Allocated memory is still 167.8MB. Free memory was 73.5MB in the beginning and 72.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 251.40ms. Allocated memory is still 167.8MB. Free memory was 72.2MB in the beginning and 62.4MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 416.17ms. Allocated memory is still 167.8MB. Free memory was 61.5MB in the beginning and 129.5MB in the end (delta: -68.0MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * Witness Printer took 3.84ms. Allocated memory is still 167.8MB. Free memory was 129.5MB in the beginning and 128.6MB in the end (delta: 980.2kB). 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: 855]: 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 855, overapproximation of someBinaryFLOATComparisonOperation at line 849, overapproximation of someBinaryArithmeticFLOAToperation at line 852, overapproximation of someBinaryArithmeticFLOAToperation at line 848. Possible FailurePath: [L847] float x1 = __VERIFIER_nondet_float(); [L848] float x2 = x1 + 1e-2f; [L849] EXPR __builtin_isgreaterequal(x1, 0.0f) && !__builtin_isinf_sign (x1) [L849] EXPR __builtin_isgreaterequal(x1, 0.0f) && !__builtin_isinf_sign (x1) [L849] COND FALSE !(!(__builtin_isgreaterequal(x1, 0.0f) && !__builtin_isinf_sign (x1))) [L850] float y1 = logf(x1); [L851] float y2 = logf(x2); [L852] float derivative = (y2 - y1) / 1e-2f; [L853] float d2 = 1.0f / x2; [L854] float diff = derivative - d2; [L855] COND TRUE !(__builtin_isgreaterequal(diff, -1e-3f)) [L855] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2025-02-05 13:45:03,941 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/neural-networks/log_4_safe.c-amalgamation.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 191893af89e745e65c72b504e763dfd908536e4c3bc0a58c22606428a6927de5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 13:45:06,260 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 13:45:06,361 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-05 13:45:06,368 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 13:45:06,370 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 13:45:06,398 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 13:45:06,399 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 13:45:06,399 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 13:45:06,399 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 13:45:06,399 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 13:45:06,400 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 13:45:06,400 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 13:45:06,401 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 13:45:06,401 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 13:45:06,401 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 13:45:06,401 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 13:45:06,401 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 13:45:06,401 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 13:45:06,402 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 13:45:06,402 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 13:45:06,402 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 13:45:06,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 13:45:06,402 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 13:45:06,402 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-05 13:45:06,402 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-05 13:45:06,402 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-05 13:45:06,403 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 13:45:06,403 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 13:45:06,403 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 13:45:06,403 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 13:45:06,403 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 13:45:06,404 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 13:45:06,404 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 13:45:06,404 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 13:45:06,404 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 13:45:06,404 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 13:45:06,404 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 13:45:06,404 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 13:45:06,404 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 13:45:06,405 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-05 13:45:06,405 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-05 13:45:06,405 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 13:45:06,405 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 13:45:06,405 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 13:45:06,405 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 13:45:06,406 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-jdk21/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 -> 191893af89e745e65c72b504e763dfd908536e4c3bc0a58c22606428a6927de5 [2025-02-05 13:45:06,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 13:45:06,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 13:45:06,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 13:45:06,690 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 13:45:06,690 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 13:45:06,691 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/neural-networks/log_4_safe.c-amalgamation.i [2025-02-05 13:45:07,942 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6287925db/3b4d4d9a0c4e45e98cf0071548f8e98a/FLAGb604e2070 [2025-02-05 13:45:08,271 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 13:45:08,272 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/neural-networks/log_4_safe.c-amalgamation.i [2025-02-05 13:45:08,295 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6287925db/3b4d4d9a0c4e45e98cf0071548f8e98a/FLAGb604e2070 [2025-02-05 13:45:08,315 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6287925db/3b4d4d9a0c4e45e98cf0071548f8e98a [2025-02-05 13:45:08,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 13:45:08,321 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 13:45:08,322 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 13:45:08,322 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 13:45:08,327 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 13:45:08,328 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 01:45:08" (1/1) ... [2025-02-05 13:45:08,329 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31f715ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:08, skipping insertion in model container [2025-02-05 13:45:08,329 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 01:45:08" (1/1) ... [2025-02-05 13:45:08,371 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 13:45:08,759 WARN L1731 CHandler]: Possible shadowing of function y1 [2025-02-05 13:45:08,763 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/neural-networks/log_4_safe.c-amalgamation.i[63189,63202] [2025-02-05 13:45:08,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 13:45:08,779 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 13:45:08,841 WARN L1731 CHandler]: Possible shadowing of function y1 [2025-02-05 13:45:08,842 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/neural-networks/log_4_safe.c-amalgamation.i[63189,63202] [2025-02-05 13:45:08,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 13:45:09,034 INFO L204 MainTranslator]: Completed translation [2025-02-05 13:45:09,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:09 WrapperNode [2025-02-05 13:45:09,035 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 13:45:09,037 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 13:45:09,037 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 13:45:09,037 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 13:45:09,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:09" (1/1) ... [2025-02-05 13:45:09,067 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:09" (1/1) ... [2025-02-05 13:45:09,087 INFO L138 Inliner]: procedures = 558, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2025-02-05 13:45:09,087 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 13:45:09,088 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 13:45:09,088 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 13:45:09,088 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 13:45:09,094 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:09" (1/1) ... [2025-02-05 13:45:09,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:09" (1/1) ... [2025-02-05 13:45:09,097 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:09" (1/1) ... [2025-02-05 13:45:09,111 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2025-02-05 13:45:09,112 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:09" (1/1) ... [2025-02-05 13:45:09,112 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:09" (1/1) ... [2025-02-05 13:45:09,116 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:09" (1/1) ... [2025-02-05 13:45:09,121 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:09" (1/1) ... [2025-02-05 13:45:09,122 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:09" (1/1) ... [2025-02-05 13:45:09,123 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:09" (1/1) ... [2025-02-05 13:45:09,128 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 13:45:09,129 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 13:45:09,130 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 13:45:09,130 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 13:45:09,131 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:09" (1/1) ... [2025-02-05 13:45:09,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 13:45:09,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 13:45:09,159 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-05 13:45:09,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-05 13:45:09,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-05 13:45:09,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-05 13:45:09,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 13:45:09,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 13:45:09,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 13:45:09,275 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 13:45:09,277 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 13:45:13,494 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2025-02-05 13:45:13,495 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 13:45:13,501 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 13:45:13,502 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 13:45:13,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 01:45:13 BoogieIcfgContainer [2025-02-05 13:45:13,502 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 13:45:13,504 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 13:45:13,505 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 13:45:13,509 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 13:45:13,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 01:45:08" (1/3) ... [2025-02-05 13:45:13,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b9277ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 01:45:13, skipping insertion in model container [2025-02-05 13:45:13,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:45:09" (2/3) ... [2025-02-05 13:45:13,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b9277ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 01:45:13, skipping insertion in model container [2025-02-05 13:45:13,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 01:45:13" (3/3) ... [2025-02-05 13:45:13,511 INFO L128 eAbstractionObserver]: Analyzing ICFG log_4_safe.c-amalgamation.i [2025-02-05 13:45:13,523 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 13:45:13,524 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG log_4_safe.c-amalgamation.i that has 1 procedures, 11 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-05 13:45:13,557 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 13:45:13,565 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;@24e6c73f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 13:45:13,565 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 13:45:13,568 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 13:45:13,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-05 13:45:13,572 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 13:45:13,573 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-05 13:45:13,573 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 13:45:13,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 13:45:13,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1211904766, now seen corresponding path program 1 times [2025-02-05 13:45:13,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-05 13:45:13,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [220219213] [2025-02-05 13:45:13,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 13:45:13,590 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 [2025-02-05 13:45:13,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-05 13:45:13,593 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/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) [2025-02-05 13:45:13,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 [2025-02-05 13:45:13,643 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-05 13:45:13,915 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-05 13:45:13,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 13:45:13,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 13:45:13,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-05 13:45:13,926 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 13:45:13,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 13:45:13,938 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 13:45:13,938 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-05 13:45:13,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [220219213] [2025-02-05 13:45:13,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [220219213] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 13:45:13,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 13:45:13,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 13:45:13,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677372300] [2025-02-05 13:45:13,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 13:45:13,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 13:45:13,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-05 13:45:13,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 13:45:13,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 13:45:13,959 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 13:45:13,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 13:45:13,967 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2025-02-05 13:45:13,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 13:45:13,969 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-02-05 13:45:13,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 13:45:13,973 INFO L225 Difference]: With dead ends: 19 [2025-02-05 13:45:13,974 INFO L226 Difference]: Without dead ends: 7 [2025-02-05 13:45:13,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 13:45:13,978 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 13:45:13,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 13:45:13,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2025-02-05 13:45:13,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2025-02-05 13:45:13,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 13:45:14,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2025-02-05 13:45:14,001 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2025-02-05 13:45:14,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 13:45:14,001 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2025-02-05 13:45:14,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 13:45:14,002 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2025-02-05 13:45:14,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-05 13:45:14,002 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 13:45:14,002 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-05 13:45:14,015 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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)] Ended with exit code 0 [2025-02-05 13:45:14,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/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 [2025-02-05 13:45:14,203 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 13:45:14,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 13:45:14,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1211934557, now seen corresponding path program 1 times [2025-02-05 13:45:14,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-05 13:45:14,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073023201] [2025-02-05 13:45:14,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 13:45:14,204 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 [2025-02-05 13:45:14,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-05 13:45:14,206 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/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) [2025-02-05 13:45:14,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 [2025-02-05 13:45:14,249 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-05 13:45:14,559 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-05 13:45:14,559 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 13:45:14,559 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-05 13:45:14,559 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-05 13:45:14,575 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-05 13:45:14,882 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-05 13:45:14,882 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 13:45:14,882 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-05 13:45:14,905 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-02-05 13:45:14,905 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-05 13:45:14,906 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-05 13:45:14,921 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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)] Ended with exit code 0 [2025-02-05 13:45:15,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/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 [2025-02-05 13:45:15,110 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-05 13:45:15,122 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-05 13:45:15,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.02 01:45:15 BoogieIcfgContainer [2025-02-05 13:45:15,125 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-05 13:45:15,126 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-05 13:45:15,126 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-05 13:45:15,126 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-05 13:45:15,127 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 01:45:13" (3/4) ... [2025-02-05 13:45:15,129 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-05 13:45:15,130 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-05 13:45:15,130 INFO L158 Benchmark]: Toolchain (without parser) took 6809.86ms. Allocated memory is still 117.4MB. Free memory was 88.5MB in the beginning and 47.1MB in the end (delta: 41.5MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2025-02-05 13:45:15,131 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory was 60.4MB in the beginning and 60.4MB in the end (delta: 17.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 13:45:15,131 INFO L158 Benchmark]: CACSL2BoogieTranslator took 714.41ms. Allocated memory is still 117.4MB. Free memory was 88.4MB in the beginning and 80.3MB in the end (delta: 8.1MB). Peak memory consumption was 64.9MB. Max. memory is 16.1GB. [2025-02-05 13:45:15,131 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.88ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 77.6MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-05 13:45:15,132 INFO L158 Benchmark]: Boogie Preprocessor took 40.20ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 76.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 13:45:15,132 INFO L158 Benchmark]: IcfgBuilder took 4373.68ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 65.8MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-05 13:45:15,132 INFO L158 Benchmark]: TraceAbstraction took 1620.70ms. Allocated memory is still 117.4MB. Free memory was 65.1MB in the beginning and 47.1MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-05 13:45:15,132 INFO L158 Benchmark]: Witness Printer took 4.05ms. Allocated memory is still 117.4MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 13:45:15,134 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory was 60.4MB in the beginning and 60.4MB in the end (delta: 17.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 714.41ms. Allocated memory is still 117.4MB. Free memory was 88.4MB in the beginning and 80.3MB in the end (delta: 8.1MB). Peak memory consumption was 64.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.88ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 77.6MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.20ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 76.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 4373.68ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 65.8MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1620.70ms. Allocated memory is still 117.4MB. Free memory was 65.1MB in the beginning and 47.1MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.05ms. Allocated memory is still 117.4MB. Free memory is still 47.1MB. 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: 855]: 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 logf at line 851, overapproximation of __builtin_isinf_sign at line 849. Possible FailurePath: [L847] float x1 = __VERIFIER_nondet_float(); [L848] float x2 = x1 + 1e-2f; VAL [x1=8589934592, x2=8589934592] [L849] COND FALSE !(!(__builtin_isgreaterequal(x1, 0.0f) && !__builtin_isinf_sign (x1))) [L850] float y1 = logf(x1); [L851] float y2 = logf(x2); [L852] float derivative = (y2 - y1) / 1e-2f; [L853] float d2 = 1.0f / x2; [L854] float diff = derivative - d2; VAL [diff=-1.5380859375] [L855] COND TRUE !(__builtin_isgreaterequal(diff, -1e-3f)) [L855] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 10 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2025-02-05 13:45:15,165 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample