./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 464cfb1fddddc503ce4a60ba7271f6a7a7e255070ab192dcd8706e91368aad81 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 05:10:47,339 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 05:10:47,395 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 05:10:47,400 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 05:10:47,401 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 05:10:47,426 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 05:10:47,427 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 05:10:47,427 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 05:10:47,439 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 05:10:47,441 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 05:10:47,441 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 05:10:47,441 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 05:10:47,442 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 05:10:47,443 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 05:10:47,444 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 05:10:47,444 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 05:10:47,444 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 05:10:47,444 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 05:10:47,445 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 05:10:47,445 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 05:10:47,445 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 05:10:47,445 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 05:10:47,446 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 05:10:47,448 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 05:10:47,448 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 05:10:47,448 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 05:10:47,449 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 05:10:47,449 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 05:10:47,449 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 05:10:47,449 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 05:10:47,449 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 05:10:47,449 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 05:10:47,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 05:10:47,450 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 05:10:47,450 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 05:10:47,450 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 05:10:47,450 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 05:10:47,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 05:10:47,450 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 05:10:47,450 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 05:10:47,451 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 05:10:47,451 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 05:10:47,451 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 464cfb1fddddc503ce4a60ba7271f6a7a7e255070ab192dcd8706e91368aad81 [2024-10-11 05:10:47,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 05:10:47,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 05:10:47,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 05:10:47,682 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 05:10:47,683 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 05:10:47,684 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c [2024-10-11 05:10:48,922 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 05:10:49,093 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 05:10:49,094 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c [2024-10-11 05:10:49,101 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/08478e4e8/6dfdd26843a74977bbb6fd2609125c28/FLAG44db472ce [2024-10-11 05:10:49,483 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/08478e4e8/6dfdd26843a74977bbb6fd2609125c28 [2024-10-11 05:10:49,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 05:10:49,486 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 05:10:49,488 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 05:10:49,488 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 05:10:49,497 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 05:10:49,498 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:10:49" (1/1) ... [2024-10-11 05:10:49,498 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1634c291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:49, skipping insertion in model container [2024-10-11 05:10:49,498 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:10:49" (1/1) ... [2024-10-11 05:10:49,522 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 05:10:49,690 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c[1997,2010] [2024-10-11 05:10:49,696 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c[2366,2379] [2024-10-11 05:10:49,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 05:10:49,762 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 05:10:49,786 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c[1997,2010] [2024-10-11 05:10:49,789 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c[2366,2379] [2024-10-11 05:10:49,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 05:10:49,826 INFO L204 MainTranslator]: Completed translation [2024-10-11 05:10:49,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:49 WrapperNode [2024-10-11 05:10:49,827 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 05:10:49,828 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 05:10:49,828 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 05:10:49,828 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 05:10:49,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:49" (1/1) ... [2024-10-11 05:10:49,845 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:49" (1/1) ... [2024-10-11 05:10:49,867 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 168 [2024-10-11 05:10:49,867 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 05:10:49,868 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 05:10:49,868 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 05:10:49,868 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 05:10:49,880 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:49" (1/1) ... [2024-10-11 05:10:49,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:49" (1/1) ... [2024-10-11 05:10:49,886 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:49" (1/1) ... [2024-10-11 05:10:49,897 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 05:10:49,898 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:49" (1/1) ... [2024-10-11 05:10:49,898 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:49" (1/1) ... [2024-10-11 05:10:49,902 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:49" (1/1) ... [2024-10-11 05:10:49,909 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:49" (1/1) ... [2024-10-11 05:10:49,912 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:49" (1/1) ... [2024-10-11 05:10:49,913 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:49" (1/1) ... [2024-10-11 05:10:49,915 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 05:10:49,915 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 05:10:49,916 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 05:10:49,916 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 05:10:49,916 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:49" (1/1) ... [2024-10-11 05:10:49,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 05:10:49,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:10:49,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 05:10:49,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 05:10:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 05:10:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-10-11 05:10:49,992 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-10-11 05:10:49,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 05:10:49,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 05:10:49,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 05:10:49,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-11 05:10:49,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-11 05:10:50,065 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 05:10:50,067 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 05:10:50,407 INFO L? ?]: Removed 70 outVars from TransFormulas that were not future-live. [2024-10-11 05:10:50,407 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 05:10:50,433 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 05:10:50,434 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 05:10:50,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:10:50 BoogieIcfgContainer [2024-10-11 05:10:50,434 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 05:10:50,436 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 05:10:50,436 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 05:10:50,438 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 05:10:50,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:10:49" (1/3) ... [2024-10-11 05:10:50,439 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d43be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:10:50, skipping insertion in model container [2024-10-11 05:10:50,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:49" (2/3) ... [2024-10-11 05:10:50,439 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d43be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:10:50, skipping insertion in model container [2024-10-11 05:10:50,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:10:50" (3/3) ... [2024-10-11 05:10:50,440 INFO L112 eAbstractionObserver]: Analyzing ICFG square_6+soft_float_2a.c.cil.c [2024-10-11 05:10:50,452 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 05:10:50,452 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 05:10:50,494 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 05:10:50,499 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;@322fb0eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 05:10:50,499 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-11 05:10:50,503 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 68 states have (on average 1.588235294117647) internal successors, (108), 71 states have internal predecessors, (108), 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) [2024-10-11 05:10:50,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 05:10:50,508 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:10:50,509 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 05:10:50,509 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:10:50,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:10:50,513 INFO L85 PathProgramCache]: Analyzing trace with hash 431207306, now seen corresponding path program 1 times [2024-10-11 05:10:50,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:10:50,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490294889] [2024-10-11 05:10:50,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:10:50,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:10:50,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:10:50,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 05:10:50,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:10:50,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490294889] [2024-10-11 05:10:50,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490294889] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:10:50,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:10:50,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 05:10:50,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162485367] [2024-10-11 05:10:50,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:10:50,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 05:10:50,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:10:50,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 05:10:50,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 05:10:50,652 INFO L87 Difference]: Start difference. First operand has 78 states, 68 states have (on average 1.588235294117647) internal successors, (108), 71 states have internal predecessors, (108), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 05:10:50,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:10:50,680 INFO L93 Difference]: Finished difference Result 152 states and 234 transitions. [2024-10-11 05:10:50,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 05:10:50,682 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-11 05:10:50,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:10:50,704 INFO L225 Difference]: With dead ends: 152 [2024-10-11 05:10:50,704 INFO L226 Difference]: Without dead ends: 72 [2024-10-11 05:10:50,713 INFO L431 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 [2024-10-11 05:10:50,718 INFO L432 NwaCegarLoop]: 103 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, 103 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 [2024-10-11 05:10:50,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 103 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:10:50,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-10-11 05:10:50,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-10-11 05:10:50,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 64 states have (on average 1.4375) internal successors, (92), 65 states have internal predecessors, (92), 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) [2024-10-11 05:10:50,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 101 transitions. [2024-10-11 05:10:50,759 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 101 transitions. Word has length 6 [2024-10-11 05:10:50,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:10:50,760 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 101 transitions. [2024-10-11 05:10:50,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 05:10:50,760 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 101 transitions. [2024-10-11 05:10:50,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 05:10:50,761 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:10:50,761 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 05:10:50,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 05:10:50,761 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:10:50,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:10:50,762 INFO L85 PathProgramCache]: Analyzing trace with hash 431266888, now seen corresponding path program 1 times [2024-10-11 05:10:50,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:10:50,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354035210] [2024-10-11 05:10:50,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:10:50,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:10:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 05:10:50,772 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 05:10:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 05:10:50,799 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 05:10:50,799 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 05:10:50,800 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-10-11 05:10:50,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-11 05:10:50,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 05:10:50,804 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-11 05:10:50,813 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 05:10:50,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 05:10:50 BoogieIcfgContainer [2024-10-11 05:10:50,816 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 05:10:50,816 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 05:10:50,816 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 05:10:50,817 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 05:10:50,817 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:10:50" (3/4) ... [2024-10-11 05:10:50,819 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-11 05:10:50,819 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 05:10:50,820 INFO L158 Benchmark]: Toolchain (without parser) took 1333.81ms. Allocated memory is still 174.1MB. Free memory was 107.5MB in the beginning and 134.8MB in the end (delta: -27.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 05:10:50,820 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 104.9MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 05:10:50,820 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.63ms. Allocated memory is still 174.1MB. Free memory was 107.4MB in the beginning and 143.3MB in the end (delta: -36.0MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2024-10-11 05:10:50,821 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.55ms. Allocated memory is still 174.1MB. Free memory was 143.3MB in the beginning and 141.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 05:10:50,821 INFO L158 Benchmark]: Boogie Preprocessor took 47.12ms. Allocated memory is still 174.1MB. Free memory was 141.1MB in the beginning and 139.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 05:10:50,821 INFO L158 Benchmark]: RCFGBuilder took 519.01ms. Allocated memory is still 174.1MB. Free memory was 138.4MB in the beginning and 115.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-11 05:10:50,821 INFO L158 Benchmark]: TraceAbstraction took 380.18ms. Allocated memory is still 174.1MB. Free memory was 114.6MB in the beginning and 135.8MB in the end (delta: -21.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 05:10:50,822 INFO L158 Benchmark]: Witness Printer took 3.14ms. Allocated memory is still 174.1MB. Free memory is still 134.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 05:10:50,823 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 104.9MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.63ms. Allocated memory is still 174.1MB. Free memory was 107.4MB in the beginning and 143.3MB in the end (delta: -36.0MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.55ms. Allocated memory is still 174.1MB. Free memory was 143.3MB in the beginning and 141.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.12ms. Allocated memory is still 174.1MB. Free memory was 141.1MB in the beginning and 139.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 519.01ms. Allocated memory is still 174.1MB. Free memory was 138.4MB in the beginning and 115.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 380.18ms. Allocated memory is still 174.1MB. Free memory was 114.6MB in the beginning and 135.8MB in the end (delta: -21.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.14ms. Allocated memory is still 174.1MB. Free memory is still 134.8MB. 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 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] 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 < 1.399f) [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, 78 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 103 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, 103 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=78occurred 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, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-11 05:10:50,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 464cfb1fddddc503ce4a60ba7271f6a7a7e255070ab192dcd8706e91368aad81 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 05:10:52,692 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 05:10:52,755 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-11 05:10:52,759 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 05:10:52,759 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 05:10:52,784 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 05:10:52,786 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 05:10:52,786 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 05:10:52,787 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 05:10:52,787 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 05:10:52,788 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 05:10:52,788 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 05:10:52,789 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 05:10:52,790 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 05:10:52,791 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 05:10:52,791 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 05:10:52,791 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 05:10:52,791 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 05:10:52,792 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 05:10:52,792 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 05:10:52,792 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 05:10:52,795 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 05:10:52,795 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 05:10:52,795 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 05:10:52,795 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 05:10:52,795 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 05:10:52,796 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 05:10:52,796 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 05:10:52,796 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 05:10:52,796 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 05:10:52,796 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 05:10:52,796 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 05:10:52,797 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 05:10:52,797 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 05:10:52,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 05:10:52,797 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 05:10:52,797 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 05:10:52,797 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 05:10:52,797 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 05:10:52,798 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 05:10:52,798 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 05:10:52,800 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 05:10:52,800 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 05:10:52,800 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 05:10:52,801 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 05:10:52,801 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 464cfb1fddddc503ce4a60ba7271f6a7a7e255070ab192dcd8706e91368aad81 [2024-10-11 05:10:53,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 05:10:53,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 05:10:53,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 05:10:53,083 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 05:10:53,084 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 05:10:53,085 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c [2024-10-11 05:10:54,352 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 05:10:54,549 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 05:10:54,551 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c [2024-10-11 05:10:54,561 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/72c0517a3/286d95d415f84b9d9d4f244d30d6ad14/FLAG4d1c31b74 [2024-10-11 05:10:54,576 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/72c0517a3/286d95d415f84b9d9d4f244d30d6ad14 [2024-10-11 05:10:54,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 05:10:54,580 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 05:10:54,581 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 05:10:54,582 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 05:10:54,587 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 05:10:54,587 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:10:54" (1/1) ... [2024-10-11 05:10:54,588 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e90dcbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:54, skipping insertion in model container [2024-10-11 05:10:54,589 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:10:54" (1/1) ... [2024-10-11 05:10:54,610 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 05:10:54,767 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c[1997,2010] [2024-10-11 05:10:54,774 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c[2366,2379] [2024-10-11 05:10:54,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 05:10:54,828 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 05:10:54,842 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c[1997,2010] [2024-10-11 05:10:54,844 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c[2366,2379] [2024-10-11 05:10:54,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 05:10:54,884 INFO L204 MainTranslator]: Completed translation [2024-10-11 05:10:54,884 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:54 WrapperNode [2024-10-11 05:10:54,885 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 05:10:54,886 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 05:10:54,886 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 05:10:54,886 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 05:10:54,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:54" (1/1) ... [2024-10-11 05:10:54,907 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:54" (1/1) ... [2024-10-11 05:10:54,929 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 132 [2024-10-11 05:10:54,931 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 05:10:54,932 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 05:10:54,933 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 05:10:54,933 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 05:10:54,958 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:54" (1/1) ... [2024-10-11 05:10:54,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:54" (1/1) ... [2024-10-11 05:10:54,961 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:54" (1/1) ... [2024-10-11 05:10:54,971 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 05:10:54,972 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:54" (1/1) ... [2024-10-11 05:10:54,972 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:54" (1/1) ... [2024-10-11 05:10:54,977 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:54" (1/1) ... [2024-10-11 05:10:54,980 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:54" (1/1) ... [2024-10-11 05:10:54,982 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:54" (1/1) ... [2024-10-11 05:10:54,983 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:54" (1/1) ... [2024-10-11 05:10:54,985 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 05:10:54,986 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 05:10:54,986 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 05:10:54,986 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 05:10:54,987 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:54" (1/1) ... [2024-10-11 05:10:54,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 05:10:55,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:10:55,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 05:10:55,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 05:10:55,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 05:10:55,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-11 05:10:55,051 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-10-11 05:10:55,051 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-10-11 05:10:55,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 05:10:55,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 05:10:55,052 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-11 05:10:55,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-11 05:10:55,113 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 05:10:55,115 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 05:10:59,661 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-10-11 05:10:59,661 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 05:10:59,680 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 05:10:59,681 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 05:10:59,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:10:59 BoogieIcfgContainer [2024-10-11 05:10:59,681 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 05:10:59,683 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 05:10:59,684 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 05:10:59,686 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 05:10:59,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:10:54" (1/3) ... [2024-10-11 05:10:59,687 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485a66f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:10:59, skipping insertion in model container [2024-10-11 05:10:59,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:54" (2/3) ... [2024-10-11 05:10:59,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485a66f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:10:59, skipping insertion in model container [2024-10-11 05:10:59,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:10:59" (3/3) ... [2024-10-11 05:10:59,689 INFO L112 eAbstractionObserver]: Analyzing ICFG square_6+soft_float_2a.c.cil.c [2024-10-11 05:10:59,703 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 05:10:59,703 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 05:10:59,745 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 05:10:59,751 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;@77754fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 05:10:59,751 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-11 05:10:59,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 45 states have (on average 1.6222222222222222) internal successors, (73), 48 states have internal predecessors, (73), 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) [2024-10-11 05:10:59,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 05:10:59,762 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:10:59,763 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 05:10:59,763 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:10:59,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:10:59,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1797094946, now seen corresponding path program 1 times [2024-10-11 05:10:59,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 05:10:59,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [722682450] [2024-10-11 05:10:59,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:10:59,782 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 [2024-10-11 05:10:59,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 05:10:59,785 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/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) [2024-10-11 05:10:59,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 05:11:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:11:00,161 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-11 05:11:00,164 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 05:11:00,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 05:11:00,176 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 05:11:00,176 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 05:11:00,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [722682450] [2024-10-11 05:11:00,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [722682450] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:11:00,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:11:00,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 05:11:00,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822359831] [2024-10-11 05:11:00,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:11:00,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 05:11:00,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 05:11:00,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 05:11:00,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 05:11:00,205 INFO L87 Difference]: Start difference. First operand has 55 states, 45 states have (on average 1.6222222222222222) internal successors, (73), 48 states have internal predecessors, (73), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 05:11:00,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:11:00,275 INFO L93 Difference]: Finished difference Result 106 states and 164 transitions. [2024-10-11 05:11:00,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 05:11:00,277 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-11 05:11:00,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:11:00,285 INFO L225 Difference]: With dead ends: 106 [2024-10-11 05:11:00,285 INFO L226 Difference]: Without dead ends: 49 [2024-10-11 05:11:00,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 05:11:00,292 INFO L432 NwaCegarLoop]: 70 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, 70 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 05:11:00,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 05:11:00,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-10-11 05:11:00,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-10-11 05:11:00,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 41 states have (on average 1.4390243902439024) internal successors, (59), 42 states have internal predecessors, (59), 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) [2024-10-11 05:11:00,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 68 transitions. [2024-10-11 05:11:00,331 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 68 transitions. Word has length 6 [2024-10-11 05:11:00,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:11:00,332 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 68 transitions. [2024-10-11 05:11:00,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 05:11:00,333 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 68 transitions. [2024-10-11 05:11:00,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 05:11:00,334 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:11:00,334 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 05:11:00,347 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 05:11:00,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/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 [2024-10-11 05:11:00,535 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:11:00,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:11:00,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1797035364, now seen corresponding path program 1 times [2024-10-11 05:11:00,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 05:11:00,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [862437760] [2024-10-11 05:11:00,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:11:00,537 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 [2024-10-11 05:11:00,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 05:11:00,538 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/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) [2024-10-11 05:11:00,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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