./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_5+soft_float_3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_5+soft_float_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 c47cab6e9e67c4b3363cebe5303809f696c66d6509c3a11e62d36bdf941dfec0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 21:50:53,119 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 21:50:53,187 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 21:50:53,192 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 21:50:53,192 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 21:50:53,215 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 21:50:53,216 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 21:50:53,216 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 21:50:53,217 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 21:50:53,219 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 21:50:53,220 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 21:50:53,220 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 21:50:53,220 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 21:50:53,221 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 21:50:53,221 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 21:50:53,221 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 21:50:53,221 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 21:50:53,221 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 21:50:53,221 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 21:50:53,222 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 21:50:53,222 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 21:50:53,224 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 21:50:53,224 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 21:50:53,224 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 21:50:53,224 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 21:50:53,225 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 21:50:53,225 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 21:50:53,225 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 21:50:53,225 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 21:50:53,225 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 21:50:53,226 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 21:50:53,226 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 21:50:53,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 21:50:53,227 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 21:50:53,227 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 21:50:53,227 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 21:50:53,228 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 21:50:53,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 21:50:53,228 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 21:50:53,228 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 21:50:53,228 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 21:50:53,229 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 21:50:53,229 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c47cab6e9e67c4b3363cebe5303809f696c66d6509c3a11e62d36bdf941dfec0 [2024-10-12 21:50:53,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 21:50:53,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 21:50:53,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 21:50:53,481 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 21:50:53,485 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 21:50:53,486 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_5+soft_float_3a.c.cil.c [2024-10-12 21:50:54,931 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 21:50:55,097 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 21:50:55,098 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_5+soft_float_3a.c.cil.c [2024-10-12 21:50:55,105 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/265b4db17/8176a738ba98459183f2cc90e6be09a9/FLAG834f935ae [2024-10-12 21:50:55,495 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/265b4db17/8176a738ba98459183f2cc90e6be09a9 [2024-10-12 21:50:55,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 21:50:55,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 21:50:55,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 21:50:55,500 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 21:50:55,504 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 21:50:55,505 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 09:50:55" (1/1) ... [2024-10-12 21:50:55,506 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ba16a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:50:55, skipping insertion in model container [2024-10-12 21:50:55,506 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 09:50:55" (1/1) ... [2024-10-12 21:50:55,528 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 21:50:55,718 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_5+soft_float_3a.c.cil.c[1998,2011] [2024-10-12 21:50:55,725 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_5+soft_float_3a.c.cil.c[2367,2380] [2024-10-12 21:50:55,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 21:50:55,795 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 21:50:55,806 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_5+soft_float_3a.c.cil.c[1998,2011] [2024-10-12 21:50:55,810 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_5+soft_float_3a.c.cil.c[2367,2380] [2024-10-12 21:50:55,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 21:50:55,883 INFO L204 MainTranslator]: Completed translation [2024-10-12 21:50:55,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:50:55 WrapperNode [2024-10-12 21:50:55,883 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 21:50:55,884 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 21:50:55,884 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 21:50:55,884 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 21:50:55,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:50:55" (1/1) ... [2024-10-12 21:50:55,899 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:50:55" (1/1) ... [2024-10-12 21:50:55,919 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 168 [2024-10-12 21:50:55,919 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 21:50:55,920 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 21:50:55,920 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 21:50:55,920 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 21:50:55,928 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:50:55" (1/1) ... [2024-10-12 21:50:55,929 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:50:55" (1/1) ... [2024-10-12 21:50:55,931 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:50:55" (1/1) ... [2024-10-12 21:50:55,942 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]. [2024-10-12 21:50:55,942 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:50:55" (1/1) ... [2024-10-12 21:50:55,943 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:50:55" (1/1) ... [2024-10-12 21:50:55,948 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:50:55" (1/1) ... [2024-10-12 21:50:55,953 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:50:55" (1/1) ... [2024-10-12 21:50:55,956 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:50:55" (1/1) ... [2024-10-12 21:50:55,957 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:50:55" (1/1) ... [2024-10-12 21:50:55,959 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 21:50:55,960 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 21:50:55,960 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 21:50:55,960 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 21:50:55,961 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:50:55" (1/1) ... [2024-10-12 21:50:55,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 21:50:55,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 21:50:56,003 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) [2024-10-12 21:50:56,011 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 [2024-10-12 21:50:56,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 21:50:56,040 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-10-12 21:50:56,040 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-10-12 21:50:56,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 21:50:56,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 21:50:56,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 21:50:56,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-12 21:50:56,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-12 21:50:56,100 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 21:50:56,102 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 21:50:56,368 INFO L? ?]: Removed 74 outVars from TransFormulas that were not future-live. [2024-10-12 21:50:56,368 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 21:50:56,407 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 21:50:56,407 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-12 21:50:56,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:50:56 BoogieIcfgContainer [2024-10-12 21:50:56,407 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 21:50:56,409 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 21:50:56,409 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 21:50:56,417 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 21:50:56,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 09:50:55" (1/3) ... [2024-10-12 21:50:56,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dd9c874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:50:56, skipping insertion in model container [2024-10-12 21:50:56,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:50:55" (2/3) ... [2024-10-12 21:50:56,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dd9c874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:50:56, skipping insertion in model container [2024-10-12 21:50:56,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:50:56" (3/3) ... [2024-10-12 21:50:56,422 INFO L112 eAbstractionObserver]: Analyzing ICFG square_5+soft_float_3a.c.cil.c [2024-10-12 21:50:56,448 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 21:50:56,449 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-12 21:50:56,501 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 21:50:56,506 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;@768cf584, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 21:50:56,507 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-12 21:50:56,510 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 67 states have (on average 1.5970149253731343) internal successors, (107), 70 states have internal predecessors, (107), 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) [2024-10-12 21:50:56,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-12 21:50:56,516 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:50:56,517 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-12 21:50:56,517 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:50:56,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:50:56,521 INFO L85 PathProgramCache]: Analyzing trace with hash 402578155, now seen corresponding path program 1 times [2024-10-12 21:50:56,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:50:56,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82555873] [2024-10-12 21:50:56,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:50:56,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:50:56,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:50:56,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:50:56,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:50:56,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82555873] [2024-10-12 21:50:56,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82555873] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:50:56,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:50:56,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 21:50:56,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454426966] [2024-10-12 21:50:56,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:50:56,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 21:50:56,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:50:56,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 21:50:56,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 21:50:56,654 INFO L87 Difference]: Start difference. First operand has 77 states, 67 states have (on average 1.5970149253731343) internal successors, (107), 70 states have internal predecessors, (107), 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) [2024-10-12 21:50:56,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:50:56,701 INFO L93 Difference]: Finished difference Result 150 states and 232 transitions. [2024-10-12 21:50:56,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 21:50:56,704 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 [2024-10-12 21:50:56,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:50:56,709 INFO L225 Difference]: With dead ends: 150 [2024-10-12 21:50:56,709 INFO L226 Difference]: Without dead ends: 71 [2024-10-12 21:50:56,712 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 [2024-10-12 21:50:56,715 INFO L432 NwaCegarLoop]: 102 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, 102 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 [2024-10-12 21:50:56,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 102 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:50:56,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-10-12 21:50:56,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-10-12 21:50:56,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 63 states have (on average 1.4444444444444444) internal successors, (91), 64 states have internal predecessors, (91), 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) [2024-10-12 21:50:56,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 100 transitions. [2024-10-12 21:50:56,818 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 100 transitions. Word has length 6 [2024-10-12 21:50:56,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:50:56,818 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 100 transitions. [2024-10-12 21:50:56,818 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) [2024-10-12 21:50:56,819 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 100 transitions. [2024-10-12 21:50:56,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-12 21:50:56,819 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:50:56,819 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-12 21:50:56,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 21:50:56,820 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:50:56,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:50:56,825 INFO L85 PathProgramCache]: Analyzing trace with hash 402637737, now seen corresponding path program 1 times [2024-10-12 21:50:56,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:50:56,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668597083] [2024-10-12 21:50:56,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:50:56,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:50:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 21:50:56,834 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 21:50:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 21:50:56,856 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 21:50:56,856 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-12 21:50:56,857 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-10-12 21:50:56,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-12 21:50:56,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 21:50:56,862 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-12 21:50:56,870 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 21:50:56,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 09:50:56 BoogieIcfgContainer [2024-10-12 21:50:56,874 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 21:50:56,874 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 21:50:56,874 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 21:50:56,874 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 21:50:56,875 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:50:56" (3/4) ... [2024-10-12 21:50:56,876 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-12 21:50:56,877 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 21:50:56,878 INFO L158 Benchmark]: Toolchain (without parser) took 1379.34ms. Allocated memory was 172.0MB in the beginning and 255.9MB in the end (delta: 83.9MB). Free memory was 97.6MB in the beginning and 216.4MB in the end (delta: -118.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 21:50:56,878 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 172.0MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 21:50:56,878 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.36ms. Allocated memory was 172.0MB in the beginning and 255.9MB in the end (delta: 83.9MB). Free memory was 97.5MB in the beginning and 225.8MB in the end (delta: -128.3MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2024-10-12 21:50:56,879 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.89ms. Allocated memory is still 255.9MB. Free memory was 225.8MB in the beginning and 223.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 21:50:56,879 INFO L158 Benchmark]: Boogie Preprocessor took 39.84ms. Allocated memory is still 255.9MB. Free memory was 223.7MB in the beginning and 220.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 21:50:56,879 INFO L158 Benchmark]: RCFGBuilder took 447.30ms. Allocated memory is still 255.9MB. Free memory was 220.5MB in the beginning and 196.4MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-12 21:50:56,880 INFO L158 Benchmark]: TraceAbstraction took 464.59ms. Allocated memory is still 255.9MB. Free memory was 195.4MB in the beginning and 217.2MB in the end (delta: -21.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 21:50:56,880 INFO L158 Benchmark]: Witness Printer took 3.20ms. Allocated memory is still 255.9MB. Free memory is still 216.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 21:50:56,882 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 172.0MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 384.36ms. Allocated memory was 172.0MB in the beginning and 255.9MB in the end (delta: 83.9MB). Free memory was 97.5MB in the beginning and 225.8MB in the end (delta: -128.3MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.89ms. Allocated memory is still 255.9MB. Free memory was 225.8MB in the beginning and 223.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.84ms. Allocated memory is still 255.9MB. Free memory was 223.7MB in the beginning and 220.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 447.30ms. Allocated memory is still 255.9MB. Free memory was 220.5MB in the beginning and 196.4MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 464.59ms. Allocated memory is still 255.9MB. Free memory was 195.4MB in the beginning and 217.2MB in the end (delta: -21.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.20ms. Allocated memory is still 255.9MB. Free memory is still 216.4MB. 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: [L320] COND TRUE __VERIFIER_nondet_int() [L321] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; [L47] COND TRUE !(result >= 0.0f && result < 1.3985f) [L48] reach_error() - UnprovableResult [Line: 60]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 77 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 102 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, 102 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=77occurred 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: 0.1s 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 [2024-10-12 21:50:56,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_5+soft_float_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 c47cab6e9e67c4b3363cebe5303809f696c66d6509c3a11e62d36bdf941dfec0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 21:50:59,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 21:50:59,300 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-12 21:50:59,304 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 21:50:59,304 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 21:50:59,341 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 21:50:59,343 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 21:50:59,343 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 21:50:59,344 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 21:50:59,345 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 21:50:59,348 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 21:50:59,348 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 21:50:59,348 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 21:50:59,348 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 21:50:59,349 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 21:50:59,349 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 21:50:59,349 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 21:50:59,349 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 21:50:59,349 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 21:50:59,350 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 21:50:59,350 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 21:50:59,350 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 21:50:59,352 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 21:50:59,352 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-12 21:50:59,352 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-12 21:50:59,352 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 21:50:59,353 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-12 21:50:59,353 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 21:50:59,353 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 21:50:59,353 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 21:50:59,353 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 21:50:59,353 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 21:50:59,354 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 21:50:59,354 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 21:50:59,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 21:50:59,354 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 21:50:59,354 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 21:50:59,356 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 21:50:59,357 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-12 21:50:59,357 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-12 21:50:59,357 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 21:50:59,357 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 21:50:59,357 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 21:50:59,357 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 21:50:59,358 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-12 21:50:59,358 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c47cab6e9e67c4b3363cebe5303809f696c66d6509c3a11e62d36bdf941dfec0 [2024-10-12 21:50:59,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 21:50:59,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 21:50:59,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 21:50:59,785 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 21:50:59,786 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 21:50:59,787 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_5+soft_float_3a.c.cil.c [2024-10-12 21:51:01,203 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 21:51:01,362 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 21:51:01,362 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_5+soft_float_3a.c.cil.c [2024-10-12 21:51:01,369 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0ccb0f22/090fdd5f820a47d49c80db97d035161c/FLAGb9ddd36a9 [2024-10-12 21:51:01,767 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0ccb0f22/090fdd5f820a47d49c80db97d035161c [2024-10-12 21:51:01,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 21:51:01,770 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 21:51:01,771 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 21:51:01,771 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 21:51:01,778 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 21:51:01,779 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 09:51:01" (1/1) ... [2024-10-12 21:51:01,780 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cfc8911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:51:01, skipping insertion in model container [2024-10-12 21:51:01,780 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 09:51:01" (1/1) ... [2024-10-12 21:51:01,806 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 21:51:02,010 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_5+soft_float_3a.c.cil.c[1998,2011] [2024-10-12 21:51:02,025 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_5+soft_float_3a.c.cil.c[2367,2380] [2024-10-12 21:51:02,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 21:51:02,089 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 21:51:02,102 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_5+soft_float_3a.c.cil.c[1998,2011] [2024-10-12 21:51:02,108 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_5+soft_float_3a.c.cil.c[2367,2380] [2024-10-12 21:51:02,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 21:51:02,152 INFO L204 MainTranslator]: Completed translation [2024-10-12 21:51:02,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:51:02 WrapperNode [2024-10-12 21:51:02,153 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 21:51:02,154 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 21:51:02,154 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 21:51:02,154 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 21:51:02,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:51:02" (1/1) ... [2024-10-12 21:51:02,173 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:51:02" (1/1) ... [2024-10-12 21:51:02,197 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 132 [2024-10-12 21:51:02,197 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 21:51:02,198 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 21:51:02,198 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 21:51:02,199 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 21:51:02,207 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:51:02" (1/1) ... [2024-10-12 21:51:02,208 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:51:02" (1/1) ... [2024-10-12 21:51:02,211 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:51:02" (1/1) ... [2024-10-12 21:51:02,226 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]. [2024-10-12 21:51:02,226 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:51:02" (1/1) ... [2024-10-12 21:51:02,230 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:51:02" (1/1) ... [2024-10-12 21:51:02,236 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:51:02" (1/1) ... [2024-10-12 21:51:02,245 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:51:02" (1/1) ... [2024-10-12 21:51:02,246 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:51:02" (1/1) ... [2024-10-12 21:51:02,247 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:51:02" (1/1) ... [2024-10-12 21:51:02,250 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 21:51:02,250 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 21:51:02,251 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 21:51:02,251 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 21:51:02,251 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:51:02" (1/1) ... [2024-10-12 21:51:02,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 21:51:02,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 21:51:02,277 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) [2024-10-12 21:51:02,283 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 [2024-10-12 21:51:02,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 21:51:02,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-12 21:51:02,328 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-10-12 21:51:02,331 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-10-12 21:51:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 21:51:02,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 21:51:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-12 21:51:02,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-12 21:51:02,451 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 21:51:02,453 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 21:51:07,131 INFO L? ?]: Removed 58 outVars from TransFormulas that were not future-live. [2024-10-12 21:51:07,135 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 21:51:07,167 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 21:51:07,168 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-12 21:51:07,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:51:07 BoogieIcfgContainer [2024-10-12 21:51:07,168 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 21:51:07,170 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 21:51:07,171 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 21:51:07,173 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 21:51:07,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 09:51:01" (1/3) ... [2024-10-12 21:51:07,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f34692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:51:07, skipping insertion in model container [2024-10-12 21:51:07,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:51:02" (2/3) ... [2024-10-12 21:51:07,175 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f34692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:51:07, skipping insertion in model container [2024-10-12 21:51:07,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:51:07" (3/3) ... [2024-10-12 21:51:07,176 INFO L112 eAbstractionObserver]: Analyzing ICFG square_5+soft_float_3a.c.cil.c [2024-10-12 21:51:07,187 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 21:51:07,187 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-12 21:51:07,245 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 21:51:07,251 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;@424785ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 21:51:07,252 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-12 21:51:07,255 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 44 states have (on average 1.6363636363636365) internal successors, (72), 47 states have internal predecessors, (72), 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) [2024-10-12 21:51:07,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-12 21:51:07,260 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:51:07,260 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-12 21:51:07,261 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:51:07,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:51:07,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1825724097, now seen corresponding path program 1 times [2024-10-12 21:51:07,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 21:51:07,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [669835995] [2024-10-12 21:51:07,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:51:07,280 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 [2024-10-12 21:51:07,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 21:51:07,284 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) [2024-10-12 21:51:07,285 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 [2024-10-12 21:51:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:51:07,656 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-12 21:51:07,660 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 21:51:07,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:51:07,672 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 21:51:07,673 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 21:51:07,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [669835995] [2024-10-12 21:51:07,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [669835995] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:51:07,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:51:07,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 21:51:07,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086021434] [2024-10-12 21:51:07,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:51:07,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 21:51:07,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 21:51:07,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 21:51:07,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 21:51:07,697 INFO L87 Difference]: Start difference. First operand has 54 states, 44 states have (on average 1.6363636363636365) internal successors, (72), 47 states have internal predecessors, (72), 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) [2024-10-12 21:51:07,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:51:07,765 INFO L93 Difference]: Finished difference Result 104 states and 162 transitions. [2024-10-12 21:51:07,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 21:51:07,771 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 [2024-10-12 21:51:07,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:51:07,777 INFO L225 Difference]: With dead ends: 104 [2024-10-12 21:51:07,779 INFO L226 Difference]: Without dead ends: 48 [2024-10-12 21:51:07,782 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 [2024-10-12 21:51:07,785 INFO L432 NwaCegarLoop]: 69 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, 69 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 [2024-10-12 21:51:07,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:51:07,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-10-12 21:51:07,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-10-12 21:51:07,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 40 states have (on average 1.45) internal successors, (58), 41 states have internal predecessors, (58), 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) [2024-10-12 21:51:07,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2024-10-12 21:51:07,825 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 67 transitions. Word has length 6 [2024-10-12 21:51:07,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:51:07,826 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 67 transitions. [2024-10-12 21:51:07,826 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) [2024-10-12 21:51:07,827 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 67 transitions. [2024-10-12 21:51:07,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-12 21:51:07,828 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:51:07,828 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-12 21:51:07,844 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 [2024-10-12 21:51:08,028 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 [2024-10-12 21:51:08,029 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:51:08,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:51:08,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1825664515, now seen corresponding path program 1 times [2024-10-12 21:51:08,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 21:51:08,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [709481993] [2024-10-12 21:51:08,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:51:08,030 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 [2024-10-12 21:51:08,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 21:51:08,032 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) [2024-10-12 21:51:08,034 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