./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/square_5+soft_float_3a.c.cil.c --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/combinations/square_5+soft_float_3a.c.cil.c -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 c47cab6e9e67c4b3363cebe5303809f696c66d6509c3a11e62d36bdf941dfec0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 18:00:29,363 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 18:00:29,400 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 18:00:29,403 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 18:00:29,404 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 18:00:29,418 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 18:00:29,419 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 18:00:29,419 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 18:00:29,419 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 18:00:29,419 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 18:00:29,419 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 18:00:29,419 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 18:00:29,419 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 18:00:29,420 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 18:00:29,420 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 18:00:29,420 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 18:00:29,420 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 18:00:29,420 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 18:00:29,420 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 18:00:29,420 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 18:00:29,420 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 18:00:29,420 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 18:00:29,420 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 18:00:29,421 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 18:00:29,421 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 18:00:29,421 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 18:00:29,421 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 18:00:29,421 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 18:00:29,421 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 18:00:29,421 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 18:00:29,421 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 18:00:29,421 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 18:00:29,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 18:00:29,422 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 18:00:29,422 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 18:00:29,422 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 18:00:29,422 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 18:00:29,422 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 18:00:29,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 18:00:29,422 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 18:00:29,422 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 18:00:29,422 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 18:00:29,422 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 18:00:29,422 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 -> c47cab6e9e67c4b3363cebe5303809f696c66d6509c3a11e62d36bdf941dfec0 [2025-02-05 18:00:29,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 18:00:29,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 18:00:29,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 18:00:29,624 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 18:00:29,624 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 18:00:29,625 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_5+soft_float_3a.c.cil.c [2025-02-05 18:00:30,829 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0de56a3e8/70bb332298ed47ddae43a4d9f6e59bde/FLAG656be3175 [2025-02-05 18:00:31,082 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 18:00:31,082 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/square_5+soft_float_3a.c.cil.c [2025-02-05 18:00:31,090 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0de56a3e8/70bb332298ed47ddae43a4d9f6e59bde/FLAG656be3175 [2025-02-05 18:00:31,100 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0de56a3e8/70bb332298ed47ddae43a4d9f6e59bde [2025-02-05 18:00:31,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 18:00:31,103 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 18:00:31,104 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 18:00:31,104 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 18:00:31,107 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 18:00:31,108 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 06:00:31" (1/1) ... [2025-02-05 18:00:31,108 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15aa2641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:31, skipping insertion in model container [2025-02-05 18:00:31,108 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 06:00:31" (1/1) ... [2025-02-05 18:00:31,121 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 18:00:31,245 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/combinations/square_5+soft_float_3a.c.cil.c[1998,2011] [2025-02-05 18:00:31,251 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/combinations/square_5+soft_float_3a.c.cil.c[2367,2380] [2025-02-05 18:00:31,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 18:00:31,303 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 18:00:31,313 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/combinations/square_5+soft_float_3a.c.cil.c[1998,2011] [2025-02-05 18:00:31,317 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/combinations/square_5+soft_float_3a.c.cil.c[2367,2380] [2025-02-05 18:00:31,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 18:00:31,362 INFO L204 MainTranslator]: Completed translation [2025-02-05 18:00:31,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:31 WrapperNode [2025-02-05 18:00:31,364 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 18:00:31,365 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 18:00:31,365 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 18:00:31,366 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 18:00:31,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:31" (1/1) ... [2025-02-05 18:00:31,376 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:31" (1/1) ... [2025-02-05 18:00:31,393 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 168 [2025-02-05 18:00:31,394 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 18:00:31,394 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 18:00:31,394 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 18:00:31,394 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 18:00:31,402 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:31" (1/1) ... [2025-02-05 18:00:31,402 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:31" (1/1) ... [2025-02-05 18:00:31,404 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:31" (1/1) ... [2025-02-05 18:00:31,412 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]. [2025-02-05 18:00:31,413 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:31" (1/1) ... [2025-02-05 18:00:31,413 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:31" (1/1) ... [2025-02-05 18:00:31,420 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:31" (1/1) ... [2025-02-05 18:00:31,421 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:31" (1/1) ... [2025-02-05 18:00:31,422 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:31" (1/1) ... [2025-02-05 18:00:31,423 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:31" (1/1) ... [2025-02-05 18:00:31,424 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 18:00:31,430 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 18:00:31,430 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 18:00:31,430 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 18:00:31,431 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:31" (1/1) ... [2025-02-05 18:00:31,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 18:00:31,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 18:00:31,460 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 18:00:31,465 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 18:00:31,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 18:00:31,484 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2025-02-05 18:00:31,484 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2025-02-05 18:00:31,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 18:00:31,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 18:00:31,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 18:00:31,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-05 18:00:31,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-05 18:00:31,535 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 18:00:31,536 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 18:00:31,774 INFO L? ?]: Removed 75 outVars from TransFormulas that were not future-live. [2025-02-05 18:00:31,774 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 18:00:31,790 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 18:00:31,791 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 18:00:31,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 06:00:31 BoogieIcfgContainer [2025-02-05 18:00:31,791 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 18:00:31,792 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 18:00:31,793 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 18:00:31,796 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 18:00:31,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 06:00:31" (1/3) ... [2025-02-05 18:00:31,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63bf2dd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 06:00:31, skipping insertion in model container [2025-02-05 18:00:31,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:31" (2/3) ... [2025-02-05 18:00:31,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63bf2dd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 06:00:31, skipping insertion in model container [2025-02-05 18:00:31,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 06:00:31" (3/3) ... [2025-02-05 18:00:31,797 INFO L128 eAbstractionObserver]: Analyzing ICFG square_5+soft_float_3a.c.cil.c [2025-02-05 18:00:31,806 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 18:00:31,808 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG square_5+soft_float_3a.c.cil.c that has 3 procedures, 84 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-02-05 18:00:31,840 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 18:00:31,847 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;@41c46e07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 18:00:31,848 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-05 18:00:31,850 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 73 states have (on average 1.5205479452054795) internal successors, (111), 77 states have internal predecessors, (111), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-05 18:00:31,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-05 18:00:31,854 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:00:31,854 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-05 18:00:31,855 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:00:31,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:00:31,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1574124173, now seen corresponding path program 1 times [2025-02-05 18:00:31,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:00:31,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247917322] [2025-02-05 18:00:31,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:00:31,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:00:31,907 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-05 18:00:31,915 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-05 18:00:31,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:00:31,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:00:31,938 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 18:00:31,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:00:31,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247917322] [2025-02-05 18:00:31,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247917322] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:00:31,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:00:31,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 18:00:31,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366724676] [2025-02-05 18:00:31,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:00:31,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 18:00:31,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:00:31,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 18:00:31,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 18:00:31,956 INFO L87 Difference]: Start difference. First operand has 84 states, 73 states have (on average 1.5205479452054795) internal successors, (111), 77 states have internal predecessors, (111), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) 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 18:00:31,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:00:31,980 INFO L93 Difference]: Finished difference Result 163 states and 239 transitions. [2025-02-05 18:00:31,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 18:00:31,981 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 18:00:31,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:00:31,986 INFO L225 Difference]: With dead ends: 163 [2025-02-05 18:00:31,986 INFO L226 Difference]: Without dead ends: 74 [2025-02-05 18:00:31,988 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 18:00:31,989 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 18:00:31,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 108 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 18:00:31,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2025-02-05 18:00:32,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2025-02-05 18:00:32,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 66 states have (on average 1.4090909090909092) internal successors, (93), 67 states have internal predecessors, (93), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-05 18:00:32,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2025-02-05 18:00:32,014 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 102 transitions. Word has length 7 [2025-02-05 18:00:32,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:00:32,014 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 102 transitions. [2025-02-05 18:00:32,014 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 18:00:32,014 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 102 transitions. [2025-02-05 18:00:32,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-05 18:00:32,015 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:00:32,015 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-05 18:00:32,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-05 18:00:32,015 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:00:32,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:00:32,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1574094382, now seen corresponding path program 1 times [2025-02-05 18:00:32,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:00:32,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582955160] [2025-02-05 18:00:32,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:00:32,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:00:32,021 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-05 18:00:32,028 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-05 18:00:32,028 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:00:32,028 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-05 18:00:32,028 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-05 18:00:32,030 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-05 18:00:32,033 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-05 18:00:32,033 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:00:32,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-05 18:00:32,043 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-05 18:00:32,043 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-05 18:00:32,044 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-02-05 18:00:32,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-02-05 18:00:32,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 18:00:32,048 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-05 18:00:32,055 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-05 18:00:32,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.02 06:00:32 BoogieIcfgContainer [2025-02-05 18:00:32,057 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-05 18:00:32,058 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-05 18:00:32,058 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-05 18:00:32,058 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-05 18:00:32,058 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 06:00:31" (3/4) ... [2025-02-05 18:00:32,060 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-05 18:00:32,060 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-05 18:00:32,061 INFO L158 Benchmark]: Toolchain (without parser) took 957.70ms. Allocated memory is still 167.8MB. Free memory was 128.3MB in the beginning and 65.5MB in the end (delta: 62.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-02-05 18:00:32,061 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 226.5MB. Free memory is still 141.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 18:00:32,061 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.42ms. Allocated memory is still 167.8MB. Free memory was 127.9MB in the beginning and 113.8MB in the end (delta: 14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-05 18:00:32,061 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.74ms. Allocated memory is still 167.8MB. Free memory was 113.8MB in the beginning and 112.0MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-05 18:00:32,062 INFO L158 Benchmark]: Boogie Preprocessor took 29.88ms. Allocated memory is still 167.8MB. Free memory was 112.0MB in the beginning and 110.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 18:00:32,062 INFO L158 Benchmark]: IcfgBuilder took 361.22ms. Allocated memory is still 167.8MB. Free memory was 110.3MB in the beginning and 87.2MB in the end (delta: 23.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-05 18:00:32,062 INFO L158 Benchmark]: TraceAbstraction took 264.70ms. Allocated memory is still 167.8MB. Free memory was 86.5MB in the beginning and 65.5MB in the end (delta: 21.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-05 18:00:32,062 INFO L158 Benchmark]: Witness Printer took 2.70ms. Allocated memory is still 167.8MB. Free memory is still 65.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 18:00:32,063 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 226.5MB. Free memory is still 141.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.42ms. Allocated memory is still 167.8MB. Free memory was 127.9MB in the beginning and 113.8MB in the end (delta: 14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.74ms. Allocated memory is still 167.8MB. Free memory was 113.8MB in the beginning and 112.0MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.88ms. Allocated memory is still 167.8MB. Free memory was 112.0MB in the beginning and 110.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 361.22ms. Allocated memory is still 167.8MB. Free memory was 110.3MB in the beginning and 87.2MB in the end (delta: 23.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 264.70ms. Allocated memory is still 167.8MB. Free memory was 86.5MB in the beginning and 65.5MB in the end (delta: 21.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 2.70ms. Allocated memory is still 167.8MB. Free memory is still 65.5MB. 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: 48]: 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 40, overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L320] COND TRUE __VERIFIER_nondet_int() [L321] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; [L47] COND TRUE !(result >= 0.0f && result < 1.3985f) [L48] reach_error() - UnprovableResult [Line: 60]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 84 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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, 108 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 108 mSDtfsCounter, 6 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=84occurred 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 18:00:32,078 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/combinations/square_5+soft_float_3a.c.cil.c -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 c47cab6e9e67c4b3363cebe5303809f696c66d6509c3a11e62d36bdf941dfec0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 18:00:34,417 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 18:00:34,522 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-05 18:00:34,530 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 18:00:34,530 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 18:00:34,554 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 18:00:34,556 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 18:00:34,556 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 18:00:34,556 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 18:00:34,557 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 18:00:34,557 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 18:00:34,557 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 18:00:34,557 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 18:00:34,557 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 18:00:34,558 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 18:00:34,558 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 18:00:34,558 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 18:00:34,558 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 18:00:34,559 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 18:00:34,559 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 18:00:34,559 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 18:00:34,559 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 18:00:34,559 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 18:00:34,559 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-05 18:00:34,559 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-05 18:00:34,560 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-05 18:00:34,560 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 18:00:34,560 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 18:00:34,560 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 18:00:34,560 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 18:00:34,560 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 18:00:34,560 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 18:00:34,560 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 18:00:34,560 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 18:00:34,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 18:00:34,560 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 18:00:34,561 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 18:00:34,561 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 18:00:34,561 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 18:00:34,561 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-05 18:00:34,561 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-05 18:00:34,561 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 18:00:34,561 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 18:00:34,561 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 18:00:34,562 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 18:00:34,562 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 -> c47cab6e9e67c4b3363cebe5303809f696c66d6509c3a11e62d36bdf941dfec0 [2025-02-05 18:00:34,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 18:00:34,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 18:00:34,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 18:00:34,864 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 18:00:34,864 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 18:00:34,865 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_5+soft_float_3a.c.cil.c [2025-02-05 18:00:36,046 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/97f08c52b/457dd7f873ea418f815e383cc3836870/FLAG96e094508 [2025-02-05 18:00:36,270 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 18:00:36,274 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/square_5+soft_float_3a.c.cil.c [2025-02-05 18:00:36,280 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/97f08c52b/457dd7f873ea418f815e383cc3836870/FLAG96e094508 [2025-02-05 18:00:36,293 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/97f08c52b/457dd7f873ea418f815e383cc3836870 [2025-02-05 18:00:36,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 18:00:36,300 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 18:00:36,305 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 18:00:36,305 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 18:00:36,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 18:00:36,309 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 06:00:36" (1/1) ... [2025-02-05 18:00:36,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b997c46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:36, skipping insertion in model container [2025-02-05 18:00:36,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 06:00:36" (1/1) ... [2025-02-05 18:00:36,338 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 18:00:36,458 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/combinations/square_5+soft_float_3a.c.cil.c[1998,2011] [2025-02-05 18:00:36,467 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/combinations/square_5+soft_float_3a.c.cil.c[2367,2380] [2025-02-05 18:00:36,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 18:00:36,518 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 18:00:36,534 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/combinations/square_5+soft_float_3a.c.cil.c[1998,2011] [2025-02-05 18:00:36,542 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/combinations/square_5+soft_float_3a.c.cil.c[2367,2380] [2025-02-05 18:00:36,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 18:00:36,568 INFO L204 MainTranslator]: Completed translation [2025-02-05 18:00:36,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:36 WrapperNode [2025-02-05 18:00:36,569 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 18:00:36,570 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 18:00:36,570 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 18:00:36,570 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 18:00:36,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:36" (1/1) ... [2025-02-05 18:00:36,581 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:36" (1/1) ... [2025-02-05 18:00:36,598 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 132 [2025-02-05 18:00:36,599 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 18:00:36,599 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 18:00:36,599 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 18:00:36,599 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 18:00:36,607 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:36" (1/1) ... [2025-02-05 18:00:36,607 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:36" (1/1) ... [2025-02-05 18:00:36,611 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:36" (1/1) ... [2025-02-05 18:00:36,624 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]. [2025-02-05 18:00:36,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:36" (1/1) ... [2025-02-05 18:00:36,627 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:36" (1/1) ... [2025-02-05 18:00:36,632 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:36" (1/1) ... [2025-02-05 18:00:36,636 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:36" (1/1) ... [2025-02-05 18:00:36,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:36" (1/1) ... [2025-02-05 18:00:36,640 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:36" (1/1) ... [2025-02-05 18:00:36,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 18:00:36,643 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 18:00:36,646 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 18:00:36,646 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 18:00:36,647 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:36" (1/1) ... [2025-02-05 18:00:36,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 18:00:36,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 18:00:36,676 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 18:00:36,683 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 18:00:36,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 18:00:36,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-05 18:00:36,701 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2025-02-05 18:00:36,701 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2025-02-05 18:00:36,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 18:00:36,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 18:00:36,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-05 18:00:36,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-05 18:00:36,769 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 18:00:36,771 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 18:00:41,554 INFO L? ?]: Removed 59 outVars from TransFormulas that were not future-live. [2025-02-05 18:00:41,555 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 18:00:41,566 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 18:00:41,566 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 18:00:41,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 06:00:41 BoogieIcfgContainer [2025-02-05 18:00:41,566 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 18:00:41,568 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 18:00:41,568 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 18:00:41,571 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 18:00:41,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 06:00:36" (1/3) ... [2025-02-05 18:00:41,571 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ce0678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 06:00:41, skipping insertion in model container [2025-02-05 18:00:41,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:00:36" (2/3) ... [2025-02-05 18:00:41,572 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ce0678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 06:00:41, skipping insertion in model container [2025-02-05 18:00:41,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 06:00:41" (3/3) ... [2025-02-05 18:00:41,573 INFO L128 eAbstractionObserver]: Analyzing ICFG square_5+soft_float_3a.c.cil.c [2025-02-05 18:00:41,582 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 18:00:41,583 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG square_5+soft_float_3a.c.cil.c that has 3 procedures, 61 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-02-05 18:00:41,618 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 18:00:41,625 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;@679d45fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 18:00:41,626 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-05 18:00:41,628 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 50 states have (on average 1.52) internal successors, (76), 54 states have internal predecessors, (76), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-05 18:00:41,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-05 18:00:41,632 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:00:41,633 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-05 18:00:41,633 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:00:41,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:00:41,636 INFO L85 PathProgramCache]: Analyzing trace with hash -493270586, now seen corresponding path program 1 times [2025-02-05 18:00:41,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-05 18:00:41,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1095902024] [2025-02-05 18:00:41,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:00:41,644 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 18:00:41,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-05 18:00:41,649 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 18:00:41,652 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 18:00:41,681 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-05 18:00:41,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-05 18:00:41,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:00:41,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:00:42,011 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-05 18:00:42,014 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 18:00:42,025 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 18:00:42,025 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 18:00:42,025 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-05 18:00:42,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1095902024] [2025-02-05 18:00:42,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1095902024] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:00:42,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:00:42,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 18:00:42,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566546411] [2025-02-05 18:00:42,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:00:42,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 18:00:42,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-05 18:00:42,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 18:00:42,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 18:00:42,043 INFO L87 Difference]: Start difference. First operand has 61 states, 50 states have (on average 1.52) internal successors, (76), 54 states have internal predecessors, (76), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) 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 18:00:42,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:00:42,057 INFO L93 Difference]: Finished difference Result 117 states and 169 transitions. [2025-02-05 18:00:42,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 18:00:42,059 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 18:00:42,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:00:42,063 INFO L225 Difference]: With dead ends: 117 [2025-02-05 18:00:42,063 INFO L226 Difference]: Without dead ends: 51 [2025-02-05 18:00:42,065 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 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 18:00:42,067 INFO L435 NwaCegarLoop]: 81 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, 81 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 18:00:42,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 18:00:42,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2025-02-05 18:00:42,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2025-02-05 18:00:42,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 44 states have internal predecessors, (60), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-05 18:00:42,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 69 transitions. [2025-02-05 18:00:42,092 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 69 transitions. Word has length 7 [2025-02-05 18:00:42,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:00:42,092 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 69 transitions. [2025-02-05 18:00:42,093 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 18:00:42,093 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 69 transitions. [2025-02-05 18:00:42,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-05 18:00:42,093 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:00:42,093 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-05 18:00:42,106 INFO L540 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)] Forceful destruction successful, exit code 0 [2025-02-05 18:00:42,294 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 18:00:42,294 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:00:42,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:00:42,294 INFO L85 PathProgramCache]: Analyzing trace with hash -493240795, now seen corresponding path program 1 times [2025-02-05 18:00:42,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-05 18:00:42,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [586457532] [2025-02-05 18:00:42,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:00:42,295 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 18:00:42,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-05 18:00:42,297 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 18:00:42,298 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 18:00:42,314 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes.