./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-42.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-42.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 384bac4055c502051af9511b4aacc64193ea24cf100027b947c84870f94aa671 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 02:54:41,898 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 02:54:41,958 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-17 02:54:41,965 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 02:54:41,966 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 02:54:41,982 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 02:54:41,982 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 02:54:41,982 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 02:54:41,983 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 02:54:41,983 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 02:54:41,984 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 02:54:41,984 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 02:54:41,984 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 02:54:41,984 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 02:54:41,985 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 02:54:41,985 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 02:54:41,985 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 02:54:41,985 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 02:54:41,985 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 02:54:41,985 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 02:54:41,985 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 02:54:41,985 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 02:54:41,986 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 02:54:41,986 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 02:54:41,986 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 02:54:41,986 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 02:54:41,986 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 02:54:41,986 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 02:54:41,986 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 02:54:41,986 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 02:54:41,986 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 02:54:41,987 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 02:54:41,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 02:54:41,987 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 02:54:41,987 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 02:54:41,987 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 02:54:41,987 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 02:54:41,987 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 02:54:41,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 02:54:41,987 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 02:54:41,987 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 02:54:41,987 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 02:54:41,987 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 02:54:41,988 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 -> 384bac4055c502051af9511b4aacc64193ea24cf100027b947c84870f94aa671 [2025-03-17 02:54:42,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 02:54:42,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 02:54:42,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 02:54:42,239 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 02:54:42,239 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 02:54:42,240 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-42.i [2025-03-17 02:54:43,386 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50513f2ae/aac55446a15b4166893b04f24c32a23b/FLAG621496a1f [2025-03-17 02:54:43,613 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 02:54:43,614 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-42.i [2025-03-17 02:54:43,622 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50513f2ae/aac55446a15b4166893b04f24c32a23b/FLAG621496a1f [2025-03-17 02:54:43,945 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50513f2ae/aac55446a15b4166893b04f24c32a23b [2025-03-17 02:54:43,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 02:54:43,948 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 02:54:43,949 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 02:54:43,949 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 02:54:43,952 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 02:54:43,952 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:54:43" (1/1) ... [2025-03-17 02:54:43,953 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c621b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:43, skipping insertion in model container [2025-03-17 02:54:43,953 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:54:43" (1/1) ... [2025-03-17 02:54:43,963 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 02:54:44,058 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-42.i[916,929] [2025-03-17 02:54:44,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 02:54:44,108 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 02:54:44,117 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-42.i[916,929] [2025-03-17 02:54:44,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 02:54:44,152 INFO L204 MainTranslator]: Completed translation [2025-03-17 02:54:44,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:44 WrapperNode [2025-03-17 02:54:44,154 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 02:54:44,154 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 02:54:44,155 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 02:54:44,155 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 02:54:44,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:44" (1/1) ... [2025-03-17 02:54:44,166 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:44" (1/1) ... [2025-03-17 02:54:44,197 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 87 [2025-03-17 02:54:44,198 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 02:54:44,198 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 02:54:44,202 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 02:54:44,202 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 02:54:44,209 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:44" (1/1) ... [2025-03-17 02:54:44,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:44" (1/1) ... [2025-03-17 02:54:44,211 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:44" (1/1) ... [2025-03-17 02:54:44,224 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]. [2025-03-17 02:54:44,225 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:44" (1/1) ... [2025-03-17 02:54:44,225 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:44" (1/1) ... [2025-03-17 02:54:44,228 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:44" (1/1) ... [2025-03-17 02:54:44,229 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:44" (1/1) ... [2025-03-17 02:54:44,232 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:44" (1/1) ... [2025-03-17 02:54:44,235 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:44" (1/1) ... [2025-03-17 02:54:44,237 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 02:54:44,238 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 02:54:44,239 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 02:54:44,239 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 02:54:44,239 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:44" (1/1) ... [2025-03-17 02:54:44,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 02:54:44,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 02:54:44,268 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) [2025-03-17 02:54:44,271 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 [2025-03-17 02:54:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 02:54:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 02:54:44,289 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 02:54:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 02:54:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 02:54:44,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 02:54:44,335 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 02:54:44,336 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 02:54:44,533 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2025-03-17 02:54:44,534 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 02:54:44,539 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 02:54:44,540 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 02:54:44,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:54:44 BoogieIcfgContainer [2025-03-17 02:54:44,540 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 02:54:44,543 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 02:54:44,543 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 02:54:44,546 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 02:54:44,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 02:54:43" (1/3) ... [2025-03-17 02:54:44,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694c68ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:54:44, skipping insertion in model container [2025-03-17 02:54:44,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:44" (2/3) ... [2025-03-17 02:54:44,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694c68ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:54:44, skipping insertion in model container [2025-03-17 02:54:44,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:54:44" (3/3) ... [2025-03-17 02:54:44,549 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-42.i [2025-03-17 02:54:44,560 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 02:54:44,562 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-42.i that has 2 procedures, 36 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-17 02:54:44,608 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 02:54:44,617 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;@5c66febd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 02:54:44,618 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 02:54:44,621 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 22 states have internal predecessors, (30), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-17 02:54:44,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-03-17 02:54:44,626 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 02:54:44,628 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 02:54:44,628 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 02:54:44,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 02:54:44,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1748934221, now seen corresponding path program 1 times [2025-03-17 02:54:44,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 02:54:44,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003626881] [2025-03-17 02:54:44,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 02:54:44,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 02:54:44,698 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-17 02:54:44,712 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-17 02:54:44,713 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 02:54:44,713 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 02:54:44,786 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2025-03-17 02:54:44,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 02:54:44,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003626881] [2025-03-17 02:54:44,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003626881] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 02:54:44,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736199111] [2025-03-17 02:54:44,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 02:54:44,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 02:54:44,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 02:54:44,790 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 02:54:44,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 02:54:44,835 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-17 02:54:44,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-17 02:54:44,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 02:54:44,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 02:54:44,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 02:54:44,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 02:54:44,891 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2025-03-17 02:54:44,891 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 02:54:44,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736199111] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 02:54:44,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 02:54:44,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 02:54:44,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482643965] [2025-03-17 02:54:44,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 02:54:44,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 02:54:44,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 02:54:44,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 02:54:44,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 02:54:44,910 INFO L87 Difference]: Start difference. First operand has 36 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 22 states have internal predecessors, (30), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-17 02:54:44,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 02:54:44,923 INFO L93 Difference]: Finished difference Result 69 states and 118 transitions. [2025-03-17 02:54:44,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 02:54:44,924 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 75 [2025-03-17 02:54:44,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 02:54:44,928 INFO L225 Difference]: With dead ends: 69 [2025-03-17 02:54:44,928 INFO L226 Difference]: Without dead ends: 34 [2025-03-17 02:54:44,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 02:54:44,932 INFO L435 NwaCegarLoop]: 48 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, 48 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 02:54:44,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 02:54:44,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2025-03-17 02:54:44,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2025-03-17 02:54:44,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-17 02:54:44,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2025-03-17 02:54:44,961 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 75 [2025-03-17 02:54:44,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 02:54:44,962 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2025-03-17 02:54:44,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-17 02:54:44,963 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2025-03-17 02:54:44,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-03-17 02:54:44,965 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 02:54:44,966 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 02:54:44,972 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 02:54:45,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-17 02:54:45,170 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 02:54:45,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 02:54:45,171 INFO L85 PathProgramCache]: Analyzing trace with hash -329091661, now seen corresponding path program 1 times [2025-03-17 02:54:45,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 02:54:45,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629035835] [2025-03-17 02:54:45,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 02:54:45,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 02:54:45,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-17 02:54:45,269 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-17 02:54:45,270 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 02:54:45,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 02:54:45,272 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 02:54:45,277 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-17 02:54:45,322 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-17 02:54:45,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 02:54:45,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 02:54:45,349 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 02:54:45,351 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 02:54:45,351 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-17 02:54:45,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 02:54:45,355 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-17 02:54:45,403 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 02:54:45,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 02:54:45 BoogieIcfgContainer [2025-03-17 02:54:45,409 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 02:54:45,409 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 02:54:45,409 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 02:54:45,410 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 02:54:45,410 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:54:44" (3/4) ... [2025-03-17 02:54:45,412 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-17 02:54:45,412 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 02:54:45,413 INFO L158 Benchmark]: Toolchain (without parser) took 1465.34ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 94.7MB in the end (delta: 18.1MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2025-03-17 02:54:45,413 INFO L158 Benchmark]: CDTParser took 0.94ms. Allocated memory is still 201.3MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 02:54:45,414 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.09ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 100.4MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 02:54:45,414 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.52ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 97.8MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 02:54:45,414 INFO L158 Benchmark]: Boogie Preprocessor took 38.51ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 94.7MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 02:54:45,415 INFO L158 Benchmark]: IcfgBuilder took 301.84ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 78.6MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 02:54:45,415 INFO L158 Benchmark]: TraceAbstraction took 866.29ms. Allocated memory is still 142.6MB. Free memory was 78.1MB in the beginning and 94.7MB in the end (delta: -16.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 02:54:45,415 INFO L158 Benchmark]: Witness Printer took 3.04ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 94.7MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 02:54:45,416 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.94ms. Allocated memory is still 201.3MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 205.09ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 100.4MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.52ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 97.8MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.51ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 94.7MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 301.84ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 78.6MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 866.29ms. Allocated memory is still 142.6MB. Free memory was 78.1MB in the beginning and 94.7MB in the end (delta: -16.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.04ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 94.7MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of to_int at line 37, overapproximation of to_int at line 83. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = -1; [L23] unsigned char var_1_8 = 5; [L24] unsigned char var_1_9 = 4; [L25] signed long int var_1_10 = 16; [L26] signed long int var_1_11 = 127; [L27] unsigned char var_1_12 = 1; [L28] unsigned char var_1_13 = 0; [L29] unsigned char var_1_15 = 0; [L30] unsigned char var_1_16 = 0; [L31] unsigned char var_1_17 = 0; [L32] unsigned char var_1_18 = 0; [L87] isInitial = 1 [L88] FCALL initially() [L89] COND TRUE 1 [L90] FCALL updateLastVariables() [L91] CALL updateVariables() [L61] var_1_9 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=127, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=127, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5] [L62] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=16, var_1_11=127, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5] [L63] CALL assume_abort_if_not(var_1_9 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=127, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=127, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L63] RET assume_abort_if_not(var_1_9 <= 127) VAL [isInitial=1, var_1_10=16, var_1_11=127, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L64] var_1_11 = __VERIFIER_nondet_long() [L65] CALL assume_abort_if_not(var_1_11 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L65] RET assume_abort_if_not(var_1_11 >= -2147483648) VAL [isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L66] CALL assume_abort_if_not(var_1_11 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L66] RET assume_abort_if_not(var_1_11 <= 2147483647) VAL [isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L67] var_1_13 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L68] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L69] CALL assume_abort_if_not(var_1_13 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L69] RET assume_abort_if_not(var_1_13 <= 0) VAL [isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L70] var_1_15 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L71] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L72] CALL assume_abort_if_not(var_1_15 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L72] RET assume_abort_if_not(var_1_15 <= 0) VAL [isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L73] var_1_16 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L74] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L75] CALL assume_abort_if_not(var_1_16 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L75] RET assume_abort_if_not(var_1_16 <= 0) VAL [isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L76] var_1_18 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_18 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L77] RET assume_abort_if_not(var_1_18 >= 0) VAL [isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_1=-1, var_1_8=5, var_1_9=0] [L78] CALL assume_abort_if_not(var_1_18 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=-256, var_1_1=-1, var_1_8=5, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=-256, var_1_1=-1, var_1_8=5, var_1_9=0] [L78] RET assume_abort_if_not(var_1_18 <= 0) VAL [isInitial=1, var_1_10=16, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=-256, var_1_1=-1, var_1_8=5, var_1_9=0] [L91] RET updateVariables() [L92] CALL step() [L36] var_1_8 = (var_1_9 + 100) [L37] var_1_10 = ((((var_1_11) < (64.15f)) ? (var_1_11) : (64.15f))) VAL [isInitial=1, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=-256, var_1_1=-1, var_1_8=100, var_1_9=0] [L38] COND FALSE !(var_1_8 > var_1_8) [L41] var_1_1 = (((((var_1_8 - var_1_8)) > ((var_1_8 - var_1_8))) ? ((var_1_8 - var_1_8)) : ((var_1_8 - var_1_8)))) VAL [isInitial=1, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=-256, var_1_1=0, var_1_8=100, var_1_9=0] [L43] COND TRUE var_1_11 <= var_1_10 VAL [isInitial=1, var_1_10=1, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=-256, var_1_1=0, var_1_8=100, var_1_9=0] [L44] COND TRUE var_1_1 != var_1_8 [L45] var_1_17 = var_1_18 VAL [isInitial=1, var_1_10=1, var_1_11=-2, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=-256, var_1_18=-256, var_1_1=0, var_1_8=100, var_1_9=0] [L54] COND TRUE (- var_1_10) > var_1_11 [L55] var_1_12 = (var_1_13 || (var_1_17 && (var_1_15 || var_1_16))) VAL [isInitial=1, var_1_10=1, var_1_11=-2, var_1_12=0, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=-256, var_1_18=-256, var_1_1=0, var_1_8=100, var_1_9=0] [L92] RET step() [L93] CALL, EXPR property() [L83-L84] return (((((var_1_8 > var_1_8) ? (var_1_1 == ((signed long int) (((((var_1_8) < (var_1_8)) ? (var_1_8) : (var_1_8))) - 10))) : (var_1_1 == ((signed long int) (((((var_1_8 - var_1_8)) > ((var_1_8 - var_1_8))) ? ((var_1_8 - var_1_8)) : ((var_1_8 - var_1_8))))))) && (var_1_8 == ((unsigned char) (var_1_9 + 100)))) && (var_1_10 == ((signed long int) ((((var_1_11) < (64.15f)) ? (var_1_11) : (64.15f)))))) && (((- var_1_10) > var_1_11) ? (var_1_12 == ((unsigned char) (var_1_13 || (var_1_17 && (var_1_15 || var_1_16))))) : (var_1_12 == ((unsigned char) ((var_1_1 <= var_1_9) && var_1_16))))) && ((var_1_11 <= var_1_10) ? ((var_1_1 != var_1_8) ? (var_1_17 == ((unsigned char) var_1_18)) : 1) : ((var_1_8 <= 1000000) ? (var_1_17 == ((unsigned char) 0)) : (var_1_17 == ((unsigned char) 0)))) ; [L93] RET, EXPR property() [L93] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=1, var_1_11=-2, var_1_12=0, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=-256, var_1_18=-256, var_1_1=0, var_1_8=100, var_1_9=0] [L19] reach_error() VAL [isInitial=1, var_1_10=1, var_1_11=-2, var_1_12=0, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=-256, var_1_18=-256, var_1_1=0, var_1_8=100, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 36 locations, 66 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 12, 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, 48 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, 48 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 148 SizeOfPredicates, 0 NumberOfNonLiveVariables, 184 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 506/528 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 [2025-03-17 02:54:45,434 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-42.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 384bac4055c502051af9511b4aacc64193ea24cf100027b947c84870f94aa671 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 02:54:47,352 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 02:54:47,446 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-17 02:54:47,454 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 02:54:47,454 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 02:54:47,475 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 02:54:47,476 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 02:54:47,476 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 02:54:47,476 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 02:54:47,476 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 02:54:47,477 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 02:54:47,477 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 02:54:47,477 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 02:54:47,478 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 02:54:47,478 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 02:54:47,478 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 02:54:47,478 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 02:54:47,478 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 02:54:47,478 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 02:54:47,478 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 02:54:47,478 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 02:54:47,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 02:54:47,479 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 02:54:47,479 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 02:54:47,479 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-17 02:54:47,479 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-17 02:54:47,479 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 02:54:47,479 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 02:54:47,479 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 02:54:47,479 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 02:54:47,479 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 02:54:47,479 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 02:54:47,479 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 02:54:47,480 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 02:54:47,480 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 02:54:47,480 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 02:54:47,480 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 02:54:47,480 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 02:54:47,480 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 02:54:47,480 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-17 02:54:47,480 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-17 02:54:47,480 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 02:54:47,480 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 02:54:47,480 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 02:54:47,480 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 02:54:47,481 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 384bac4055c502051af9511b4aacc64193ea24cf100027b947c84870f94aa671 [2025-03-17 02:54:47,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 02:54:47,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 02:54:47,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 02:54:47,827 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 02:54:47,829 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 02:54:47,830 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-42.i [2025-03-17 02:54:48,967 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/441c224b2/ed76cb10079b407bbcc1b701414f7f88/FLAG17db557fa [2025-03-17 02:54:49,177 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 02:54:49,178 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-42.i [2025-03-17 02:54:49,185 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/441c224b2/ed76cb10079b407bbcc1b701414f7f88/FLAG17db557fa [2025-03-17 02:54:49,201 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/441c224b2/ed76cb10079b407bbcc1b701414f7f88 [2025-03-17 02:54:49,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 02:54:49,207 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 02:54:49,208 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 02:54:49,208 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 02:54:49,211 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 02:54:49,213 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:54:49" (1/1) ... [2025-03-17 02:54:49,214 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5941010e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:49, skipping insertion in model container [2025-03-17 02:54:49,215 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:54:49" (1/1) ... [2025-03-17 02:54:49,228 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 02:54:49,323 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-42.i[916,929] [2025-03-17 02:54:49,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 02:54:49,358 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 02:54:49,367 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-42.i[916,929] [2025-03-17 02:54:49,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 02:54:49,390 INFO L204 MainTranslator]: Completed translation [2025-03-17 02:54:49,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:49 WrapperNode [2025-03-17 02:54:49,391 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 02:54:49,392 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 02:54:49,392 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 02:54:49,392 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 02:54:49,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:49" (1/1) ... [2025-03-17 02:54:49,406 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:49" (1/1) ... [2025-03-17 02:54:49,423 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 86 [2025-03-17 02:54:49,424 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 02:54:49,424 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 02:54:49,424 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 02:54:49,424 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 02:54:49,432 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:49" (1/1) ... [2025-03-17 02:54:49,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:49" (1/1) ... [2025-03-17 02:54:49,436 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:49" (1/1) ... [2025-03-17 02:54:49,445 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]. [2025-03-17 02:54:49,446 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:49" (1/1) ... [2025-03-17 02:54:49,446 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:49" (1/1) ... [2025-03-17 02:54:49,451 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:49" (1/1) ... [2025-03-17 02:54:49,452 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:49" (1/1) ... [2025-03-17 02:54:49,453 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:49" (1/1) ... [2025-03-17 02:54:49,454 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:49" (1/1) ... [2025-03-17 02:54:49,455 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 02:54:49,456 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 02:54:49,456 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 02:54:49,456 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 02:54:49,457 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:49" (1/1) ... [2025-03-17 02:54:49,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 02:54:49,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 02:54:49,482 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) [2025-03-17 02:54:49,488 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 [2025-03-17 02:54:49,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 02:54:49,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-17 02:54:49,506 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 02:54:49,506 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 02:54:49,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 02:54:49,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 02:54:49,575 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 02:54:49,577 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 02:54:50,022 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2025-03-17 02:54:50,023 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 02:54:50,030 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 02:54:50,034 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 02:54:50,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:54:50 BoogieIcfgContainer [2025-03-17 02:54:50,034 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 02:54:50,036 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 02:54:50,036 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 02:54:50,040 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 02:54:50,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 02:54:49" (1/3) ... [2025-03-17 02:54:50,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1543833e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:54:50, skipping insertion in model container [2025-03-17 02:54:50,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:49" (2/3) ... [2025-03-17 02:54:50,042 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1543833e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:54:50, skipping insertion in model container [2025-03-17 02:54:50,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:54:50" (3/3) ... [2025-03-17 02:54:50,045 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-42.i [2025-03-17 02:54:50,055 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 02:54:50,056 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-42.i that has 2 procedures, 36 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-17 02:54:50,093 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 02:54:50,103 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;@785c701c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 02:54:50,103 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 02:54:50,106 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 22 states have internal predecessors, (30), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-17 02:54:50,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-03-17 02:54:50,113 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 02:54:50,114 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 02:54:50,115 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 02:54:50,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 02:54:50,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1748934221, now seen corresponding path program 1 times [2025-03-17 02:54:50,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 02:54:50,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283638930] [2025-03-17 02:54:50,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 02:54:50,128 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 [2025-03-17 02:54:50,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-17 02:54:50,130 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) [2025-03-17 02:54:50,131 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 [2025-03-17 02:54:50,187 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-17 02:54:50,244 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-17 02:54:50,244 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 02:54:50,244 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 02:54:50,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 02:54:50,255 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 02:54:50,300 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2025-03-17 02:54:50,300 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 02:54:50,301 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 02:54:50,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283638930] [2025-03-17 02:54:50,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283638930] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 02:54:50,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 02:54:50,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 02:54:50,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337672720] [2025-03-17 02:54:50,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 02:54:50,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 02:54:50,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 02:54:50,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 02:54:50,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 02:54:50,319 INFO L87 Difference]: Start difference. First operand has 36 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 22 states have internal predecessors, (30), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2025-03-17 02:54:50,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 02:54:50,336 INFO L93 Difference]: Finished difference Result 69 states and 118 transitions. [2025-03-17 02:54:50,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 02:54:50,338 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 75 [2025-03-17 02:54:50,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 02:54:50,343 INFO L225 Difference]: With dead ends: 69 [2025-03-17 02:54:50,343 INFO L226 Difference]: Without dead ends: 34 [2025-03-17 02:54:50,345 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 02:54:50,348 INFO L435 NwaCegarLoop]: 48 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, 48 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 02:54:50,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 02:54:50,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2025-03-17 02:54:50,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2025-03-17 02:54:50,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-17 02:54:50,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2025-03-17 02:54:50,381 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 75 [2025-03-17 02:54:50,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 02:54:50,381 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2025-03-17 02:54:50,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2025-03-17 02:54:50,382 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2025-03-17 02:54:50,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-03-17 02:54:50,384 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 02:54:50,385 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 02:54:50,390 INFO L552 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)] Ended with exit code 0 [2025-03-17 02:54:50,588 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 [2025-03-17 02:54:50,589 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 02:54:50,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 02:54:50,589 INFO L85 PathProgramCache]: Analyzing trace with hash -329091661, now seen corresponding path program 1 times [2025-03-17 02:54:50,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 02:54:50,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [358088585] [2025-03-17 02:54:50,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 02:54:50,590 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 [2025-03-17 02:54:50,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-17 02:54:50,592 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) [2025-03-17 02:54:50,593 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 [2025-03-17 02:54:50,629 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-17 02:54:50,678 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-17 02:54:50,678 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 02:54:50,678 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 02:54:50,678 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 02:54:50,693 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-17 02:54:50,738 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-17 02:54:50,738 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 02:54:50,739 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 02:54:50,745 ERROR L246 FreeRefinementEngine]: Caught known exception: Invalid model [2025-03-17 02:54:50,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1916345813] [2025-03-17 02:54:50,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 02:54:50,746 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-03-17 02:54:50,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2025-03-17 02:54:50,749 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-03-17 02:54:50,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2025-03-17 02:54:50,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-17 02:54:50,880 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-17 02:54:50,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 02:54:50,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 02:54:50,883 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-03-17 02:54:50,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 02:56:20,425 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 186 proven. 27 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2025-03-17 02:56:20,426 INFO L312 TraceCheckSpWp]: Computing backward predicates...