./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/square_6+soft_float_4-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_6+soft_float_4-3a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7f9af890a0b98df8fb43a2c8ebf2715c4a4b8a7c4e81db20c6dd9c8d356ba701 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 16:26:03,915 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 16:26:04,007 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 16:26:04,013 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 16:26:04,014 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 16:26:04,047 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 16:26:04,048 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 16:26:04,049 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 16:26:04,050 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 16:26:04,050 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 16:26:04,050 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 16:26:04,050 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 16:26:04,051 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 16:26:04,051 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 16:26:04,051 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 16:26:04,052 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 16:26:04,052 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 16:26:04,052 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 16:26:04,053 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 16:26:04,053 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 16:26:04,056 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 16:26:04,056 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 16:26:04,057 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 16:26:04,057 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 16:26:04,058 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 16:26:04,058 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 16:26:04,058 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 16:26:04,058 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 16:26:04,059 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 16:26:04,059 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 16:26:04,059 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 16:26:04,059 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 16:26:04,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:26:04,060 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 16:26:04,060 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 16:26:04,060 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 16:26:04,061 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 16:26:04,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 16:26:04,062 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 16:26:04,062 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 16:26:04,062 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 16:26:04,063 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 16:26:04,063 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f9af890a0b98df8fb43a2c8ebf2715c4a4b8a7c4e81db20c6dd9c8d356ba701 [2024-11-18 16:26:04,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 16:26:04,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 16:26:04,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 16:26:04,338 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 16:26:04,338 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 16:26:04,341 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_6+soft_float_4-3a.c.cil.c [2024-11-18 16:26:05,816 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 16:26:06,040 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 16:26:06,044 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_6+soft_float_4-3a.c.cil.c [2024-11-18 16:26:06,054 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/609988838/cbe80f80c175446680bccdf5f1bae147/FLAG0c0d35b53 [2024-11-18 16:26:06,067 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/609988838/cbe80f80c175446680bccdf5f1bae147 [2024-11-18 16:26:06,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 16:26:06,071 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 16:26:06,075 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 16:26:06,075 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 16:26:06,080 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 16:26:06,081 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:26:06" (1/1) ... [2024-11-18 16:26:06,082 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@185ef258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:06, skipping insertion in model container [2024-11-18 16:26:06,082 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:26:06" (1/1) ... [2024-11-18 16:26:06,112 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 16:26:06,292 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_6+soft_float_4-3a.c.cil.c[1997,2010] [2024-11-18 16:26:06,299 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_6+soft_float_4-3a.c.cil.c[2366,2379] [2024-11-18 16:26:06,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:26:06,353 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 16:26:06,367 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_6+soft_float_4-3a.c.cil.c[1997,2010] [2024-11-18 16:26:06,369 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_6+soft_float_4-3a.c.cil.c[2366,2379] [2024-11-18 16:26:06,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:26:06,419 INFO L204 MainTranslator]: Completed translation [2024-11-18 16:26:06,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:06 WrapperNode [2024-11-18 16:26:06,420 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 16:26:06,421 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 16:26:06,421 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 16:26:06,421 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 16:26:06,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:06" (1/1) ... [2024-11-18 16:26:06,435 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:06" (1/1) ... [2024-11-18 16:26:06,458 INFO L138 Inliner]: procedures = 27, calls = 20, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 77 [2024-11-18 16:26:06,458 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 16:26:06,459 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 16:26:06,459 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 16:26:06,459 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 16:26:06,471 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:06" (1/1) ... [2024-11-18 16:26:06,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:06" (1/1) ... [2024-11-18 16:26:06,474 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:06" (1/1) ... [2024-11-18 16:26:06,495 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]. [2024-11-18 16:26:06,495 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:06" (1/1) ... [2024-11-18 16:26:06,495 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:06" (1/1) ... [2024-11-18 16:26:06,503 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:06" (1/1) ... [2024-11-18 16:26:06,512 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:06" (1/1) ... [2024-11-18 16:26:06,514 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:06" (1/1) ... [2024-11-18 16:26:06,519 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:06" (1/1) ... [2024-11-18 16:26:06,524 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 16:26:06,525 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 16:26:06,525 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 16:26:06,525 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 16:26:06,528 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:06" (1/1) ... [2024-11-18 16:26:06,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:26:06,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:26:06,561 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 16:26:06,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 16:26:06,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 16:26:06,603 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-18 16:26:06,604 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-18 16:26:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2024-11-18 16:26:06,604 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2024-11-18 16:26:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 16:26:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 16:26:06,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 16:26:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-18 16:26:06,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-18 16:26:06,672 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 16:26:06,674 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 16:26:07,042 INFO L? ?]: Removed 60 outVars from TransFormulas that were not future-live. [2024-11-18 16:26:07,042 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 16:26:07,060 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 16:26:07,061 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-18 16:26:07,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:26:07 BoogieIcfgContainer [2024-11-18 16:26:07,061 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 16:26:07,065 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 16:26:07,066 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 16:26:07,069 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 16:26:07,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:26:06" (1/3) ... [2024-11-18 16:26:07,071 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372dbbc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:26:07, skipping insertion in model container [2024-11-18 16:26:07,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:06" (2/3) ... [2024-11-18 16:26:07,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372dbbc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:26:07, skipping insertion in model container [2024-11-18 16:26:07,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:26:07" (3/3) ... [2024-11-18 16:26:07,073 INFO L112 eAbstractionObserver]: Analyzing ICFG square_6+soft_float_4-3a.c.cil.c [2024-11-18 16:26:07,092 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 16:26:07,093 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-18 16:26:07,163 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 16:26:07,169 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;@15cfced0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 16:26:07,170 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-18 16:26:07,177 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 72 states have (on average 1.5) internal successors, (108), 74 states have internal predecessors, (108), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-18 16:26:07,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-18 16:26:07,205 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:26:07,206 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:26:07,206 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:26:07,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:26:07,217 INFO L85 PathProgramCache]: Analyzing trace with hash 904226015, now seen corresponding path program 1 times [2024-11-18 16:26:07,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:26:07,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943821708] [2024-11-18 16:26:07,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:26:07,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:26:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:26:07,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:26:07,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:26:07,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943821708] [2024-11-18 16:26:07,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943821708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:26:07,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:26:07,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 16:26:07,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953181410] [2024-11-18 16:26:07,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:26:07,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 16:26:07,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:26:07,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 16:26:07,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 16:26:07,437 INFO L87 Difference]: Start difference. First operand has 87 states, 72 states have (on average 1.5) internal successors, (108), 74 states have internal predecessors, (108), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) 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) [2024-11-18 16:26:07,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:26:07,478 INFO L93 Difference]: Finished difference Result 169 states and 253 transitions. [2024-11-18 16:26:07,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 16:26:07,481 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 [2024-11-18 16:26:07,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:26:07,488 INFO L225 Difference]: With dead ends: 169 [2024-11-18 16:26:07,488 INFO L226 Difference]: Without dead ends: 80 [2024-11-18 16:26:07,494 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 [2024-11-18 16:26:07,500 INFO L432 NwaCegarLoop]: 117 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, 117 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 [2024-11-18 16:26:07,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:26:07,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-18 16:26:07,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-18 16:26:07,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 66 states have (on average 1.393939393939394) internal successors, (92), 68 states have internal predecessors, (92), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-18 16:26:07,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 109 transitions. [2024-11-18 16:26:07,546 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 109 transitions. Word has length 7 [2024-11-18 16:26:07,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:26:07,546 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 109 transitions. [2024-11-18 16:26:07,547 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) [2024-11-18 16:26:07,547 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 109 transitions. [2024-11-18 16:26:07,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-18 16:26:07,548 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:26:07,548 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:26:07,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 16:26:07,549 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:26:07,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:26:07,549 INFO L85 PathProgramCache]: Analyzing trace with hash 904285597, now seen corresponding path program 1 times [2024-11-18 16:26:07,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:26:07,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579050623] [2024-11-18 16:26:07,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:26:07,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:26:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 16:26:07,581 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-18 16:26:07,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 16:26:07,608 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-18 16:26:07,609 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-18 16:26:07,611 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-18 16:26:07,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-18 16:26:07,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 16:26:07,617 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-18 16:26:07,628 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 16:26:07,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:26:07 BoogieIcfgContainer [2024-11-18 16:26:07,632 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 16:26:07,633 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 16:26:07,633 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 16:26:07,633 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 16:26:07,633 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:26:07" (3/4) ... [2024-11-18 16:26:07,636 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-18 16:26:07,636 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 16:26:07,637 INFO L158 Benchmark]: Toolchain (without parser) took 1566.22ms. Allocated memory was 176.2MB in the beginning and 241.2MB in the end (delta: 65.0MB). Free memory was 120.4MB in the beginning and 192.2MB in the end (delta: -71.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 16:26:07,638 INFO L158 Benchmark]: CDTParser took 1.84ms. Allocated memory is still 176.2MB. Free memory is still 138.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 16:26:07,639 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.80ms. Allocated memory is still 176.2MB. Free memory was 119.9MB in the beginning and 104.1MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-18 16:26:07,640 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.39ms. Allocated memory is still 176.2MB. Free memory was 104.1MB in the beginning and 102.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 16:26:07,641 INFO L158 Benchmark]: Boogie Preprocessor took 65.26ms. Allocated memory is still 176.2MB. Free memory was 102.0MB in the beginning and 100.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 16:26:07,641 INFO L158 Benchmark]: RCFGBuilder took 536.27ms. Allocated memory is still 176.2MB. Free memory was 100.0MB in the beginning and 78.4MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-18 16:26:07,641 INFO L158 Benchmark]: TraceAbstraction took 566.85ms. Allocated memory was 176.2MB in the beginning and 241.2MB in the end (delta: 65.0MB). Free memory was 77.4MB in the beginning and 192.2MB in the end (delta: -114.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 16:26:07,641 INFO L158 Benchmark]: Witness Printer took 4.05ms. Allocated memory is still 241.2MB. Free memory is still 192.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 16:26:07,644 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.84ms. Allocated memory is still 176.2MB. Free memory is still 138.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.80ms. Allocated memory is still 176.2MB. Free memory was 119.9MB in the beginning and 104.1MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.39ms. Allocated memory is still 176.2MB. Free memory was 104.1MB in the beginning and 102.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.26ms. Allocated memory is still 176.2MB. Free memory was 102.0MB in the beginning and 100.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 536.27ms. Allocated memory is still 176.2MB. Free memory was 100.0MB in the beginning and 78.4MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 566.85ms. Allocated memory was 176.2MB in the beginning and 241.2MB in the end (delta: 65.0MB). Free memory was 77.4MB in the beginning and 192.2MB in the end (delta: -114.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.05ms. Allocated memory is still 241.2MB. Free memory is still 192.2MB. 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: [L309] COND TRUE __VERIFIER_nondet_int() [L310] 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 4 procedures, 87 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, 117 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 117 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-18 16:26:07,674 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_6+soft_float_4-3a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7f9af890a0b98df8fb43a2c8ebf2715c4a4b8a7c4e81db20c6dd9c8d356ba701 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 16:26:09,971 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 16:26:10,062 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-18 16:26:10,070 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 16:26:10,070 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 16:26:10,101 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 16:26:10,102 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 16:26:10,103 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 16:26:10,103 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 16:26:10,104 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 16:26:10,104 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 16:26:10,104 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 16:26:10,105 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 16:26:10,105 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 16:26:10,106 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 16:26:10,106 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 16:26:10,106 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 16:26:10,107 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 16:26:10,107 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 16:26:10,107 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 16:26:10,107 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 16:26:10,111 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 16:26:10,112 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 16:26:10,112 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-18 16:26:10,112 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-18 16:26:10,112 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 16:26:10,112 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-18 16:26:10,113 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 16:26:10,113 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 16:26:10,113 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 16:26:10,113 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 16:26:10,113 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 16:26:10,114 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 16:26:10,114 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 16:26:10,114 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:26:10,114 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 16:26:10,114 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 16:26:10,115 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 16:26:10,115 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-18 16:26:10,118 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-18 16:26:10,118 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 16:26:10,118 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 16:26:10,118 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 16:26:10,119 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 16:26:10,119 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f9af890a0b98df8fb43a2c8ebf2715c4a4b8a7c4e81db20c6dd9c8d356ba701 [2024-11-18 16:26:10,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 16:26:10,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 16:26:10,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 16:26:10,468 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 16:26:10,469 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 16:26:10,470 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_6+soft_float_4-3a.c.cil.c [2024-11-18 16:26:12,090 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 16:26:12,301 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 16:26:12,302 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_6+soft_float_4-3a.c.cil.c [2024-11-18 16:26:12,312 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1045c6178/d71e3beb374743e59d79618da7bc29a2/FLAGf5d73ba71 [2024-11-18 16:26:12,329 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1045c6178/d71e3beb374743e59d79618da7bc29a2 [2024-11-18 16:26:12,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 16:26:12,334 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 16:26:12,336 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 16:26:12,336 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 16:26:12,341 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 16:26:12,355 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:26:12" (1/1) ... [2024-11-18 16:26:12,357 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1684af12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:12, skipping insertion in model container [2024-11-18 16:26:12,358 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:26:12" (1/1) ... [2024-11-18 16:26:12,391 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 16:26:12,603 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_6+soft_float_4-3a.c.cil.c[1997,2010] [2024-11-18 16:26:12,611 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_6+soft_float_4-3a.c.cil.c[2366,2379] [2024-11-18 16:26:12,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:26:12,690 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 16:26:12,705 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_6+soft_float_4-3a.c.cil.c[1997,2010] [2024-11-18 16:26:12,709 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_6+soft_float_4-3a.c.cil.c[2366,2379] [2024-11-18 16:26:12,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:26:12,771 INFO L204 MainTranslator]: Completed translation [2024-11-18 16:26:12,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:12 WrapperNode [2024-11-18 16:26:12,771 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 16:26:12,772 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 16:26:12,773 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 16:26:12,773 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 16:26:12,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:12" (1/1) ... [2024-11-18 16:26:12,795 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:12" (1/1) ... [2024-11-18 16:26:12,820 INFO L138 Inliner]: procedures = 28, calls = 20, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2024-11-18 16:26:12,822 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 16:26:12,823 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 16:26:12,824 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 16:26:12,824 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 16:26:12,835 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:12" (1/1) ... [2024-11-18 16:26:12,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:12" (1/1) ... [2024-11-18 16:26:12,839 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:12" (1/1) ... [2024-11-18 16:26:12,859 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]. [2024-11-18 16:26:12,862 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:12" (1/1) ... [2024-11-18 16:26:12,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:12" (1/1) ... [2024-11-18 16:26:12,875 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:12" (1/1) ... [2024-11-18 16:26:12,882 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:12" (1/1) ... [2024-11-18 16:26:12,884 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:12" (1/1) ... [2024-11-18 16:26:12,890 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:12" (1/1) ... [2024-11-18 16:26:12,896 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 16:26:12,897 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 16:26:12,898 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 16:26:12,898 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 16:26:12,899 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:12" (1/1) ... [2024-11-18 16:26:12,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:26:12,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:26:12,929 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 16:26:12,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 16:26:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 16:26:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-18 16:26:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-18 16:26:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-18 16:26:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2024-11-18 16:26:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2024-11-18 16:26:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 16:26:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 16:26:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-18 16:26:12,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-18 16:26:13,066 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 16:26:13,069 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 16:26:17,910 INFO L? ?]: Removed 44 outVars from TransFormulas that were not future-live. [2024-11-18 16:26:17,910 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 16:26:17,925 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 16:26:17,925 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-18 16:26:17,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:26:17 BoogieIcfgContainer [2024-11-18 16:26:17,926 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 16:26:17,928 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 16:26:17,928 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 16:26:17,931 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 16:26:17,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:26:12" (1/3) ... [2024-11-18 16:26:17,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@447e10f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:26:17, skipping insertion in model container [2024-11-18 16:26:17,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:26:12" (2/3) ... [2024-11-18 16:26:17,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@447e10f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:26:17, skipping insertion in model container [2024-11-18 16:26:17,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:26:17" (3/3) ... [2024-11-18 16:26:17,933 INFO L112 eAbstractionObserver]: Analyzing ICFG square_6+soft_float_4-3a.c.cil.c [2024-11-18 16:26:17,949 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 16:26:17,950 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-18 16:26:18,011 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 16:26:18,019 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;@75ca0bf2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 16:26:18,020 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-18 16:26:18,024 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 48 states have (on average 1.4791666666666667) internal successors, (71), 50 states have internal predecessors, (71), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-18 16:26:18,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-18 16:26:18,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:26:18,032 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:26:18,032 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:26:18,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:26:18,039 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2024-11-18 16:26:18,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 16:26:18,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [762412597] [2024-11-18 16:26:18,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:26:18,052 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 [2024-11-18 16:26:18,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 16:26:18,055 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 16:26:18,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-18 16:26:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:26:18,554 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 16:26:18,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 16:26:18,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:26:18,591 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 16:26:18,592 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 16:26:18,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [762412597] [2024-11-18 16:26:18,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [762412597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:26:18,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:26:18,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 16:26:18,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345636273] [2024-11-18 16:26:18,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:26:18,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 16:26:18,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 16:26:18,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 16:26:18,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 16:26:18,624 INFO L87 Difference]: Start difference. First operand has 63 states, 48 states have (on average 1.4791666666666667) internal successors, (71), 50 states have internal predecessors, (71), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) 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) [2024-11-18 16:26:18,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:26:18,658 INFO L93 Difference]: Finished difference Result 121 states and 179 transitions. [2024-11-18 16:26:18,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 16:26:18,661 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 [2024-11-18 16:26:18,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:26:18,668 INFO L225 Difference]: With dead ends: 121 [2024-11-18 16:26:18,669 INFO L226 Difference]: Without dead ends: 56 [2024-11-18 16:26:18,673 INFO L431 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 [2024-11-18 16:26:18,678 INFO L432 NwaCegarLoop]: 82 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, 82 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 [2024-11-18 16:26:18,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:26:18,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-18 16:26:18,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-11-18 16:26:18,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 44 states have internal predecessors, (57), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-18 16:26:18,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 74 transitions. [2024-11-18 16:26:18,722 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 74 transitions. Word has length 7 [2024-11-18 16:26:18,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:26:18,723 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 74 transitions. [2024-11-18 16:26:18,723 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) [2024-11-18 16:26:18,723 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 74 transitions. [2024-11-18 16:26:18,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-18 16:26:18,724 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:26:18,724 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:26:18,742 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-18 16:26:18,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 16:26:18,925 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:26:18,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:26:18,926 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2024-11-18 16:26:18,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 16:26:18,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1783652441] [2024-11-18 16:26:18,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:26:18,927 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 [2024-11-18 16:26:18,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 16:26:18,932 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 16:26:18,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process