./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_1-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6db80c50f6c3923c66cb027dfda5b1b6c51388d665fc6094a25deaee220bcef4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 05:10:04,644 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 05:10:04,731 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 05:10:04,736 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 05:10:04,738 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 05:10:04,769 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 05:10:04,770 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 05:10:04,771 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 05:10:04,771 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 05:10:04,773 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 05:10:04,774 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 05:10:04,774 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 05:10:04,774 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 05:10:04,776 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 05:10:04,777 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 05:10:04,777 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 05:10:04,777 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 05:10:04,778 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 05:10:04,778 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 05:10:04,780 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 05:10:04,781 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 05:10:04,781 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 05:10:04,781 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 05:10:04,782 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 05:10:04,782 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 05:10:04,782 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 05:10:04,783 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 05:10:04,783 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 05:10:04,783 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 05:10:04,783 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 05:10:04,784 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 05:10:04,784 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 05:10:04,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 05:10:04,785 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 05:10:04,785 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 05:10:04,785 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 05:10:04,786 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 05:10:04,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 05:10:04,787 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 05:10:04,793 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 05:10:04,794 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 05:10:04,794 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 05:10:04,794 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6db80c50f6c3923c66cb027dfda5b1b6c51388d665fc6094a25deaee220bcef4 [2024-10-11 05:10:05,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 05:10:05,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 05:10:05,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 05:10:05,085 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 05:10:05,086 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 05:10:05,087 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c [2024-10-11 05:10:06,514 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 05:10:06,716 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 05:10:06,717 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c [2024-10-11 05:10:06,728 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/f490b441b/61bc25aaf7c34378b0f8df73e8c730c7/FLAGf43e41880 [2024-10-11 05:10:06,743 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/f490b441b/61bc25aaf7c34378b0f8df73e8c730c7 [2024-10-11 05:10:06,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 05:10:06,748 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 05:10:06,754 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 05:10:06,754 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 05:10:06,760 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 05:10:06,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:10:06" (1/1) ... [2024-10-11 05:10:06,762 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31580eed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:06, skipping insertion in model container [2024-10-11 05:10:06,762 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:10:06" (1/1) ... [2024-10-11 05:10:06,801 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 05:10:06,989 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_1-3a.c.cil.c[1998,2011] [2024-10-11 05:10:06,994 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_1-3a.c.cil.c[2367,2380] [2024-10-11 05:10:07,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 05:10:07,055 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 05:10:07,069 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_1-3a.c.cil.c[1998,2011] [2024-10-11 05:10:07,072 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_1-3a.c.cil.c[2367,2380] [2024-10-11 05:10:07,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 05:10:07,117 INFO L204 MainTranslator]: Completed translation [2024-10-11 05:10:07,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:07 WrapperNode [2024-10-11 05:10:07,117 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 05:10:07,119 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 05:10:07,119 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 05:10:07,119 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 05:10:07,126 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:07" (1/1) ... [2024-10-11 05:10:07,137 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:07" (1/1) ... [2024-10-11 05:10:07,167 INFO L138 Inliner]: procedures = 27, calls = 21, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 210 [2024-10-11 05:10:07,168 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 05:10:07,172 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 05:10:07,172 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 05:10:07,173 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 05:10:07,183 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:07" (1/1) ... [2024-10-11 05:10:07,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:07" (1/1) ... [2024-10-11 05:10:07,186 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:07" (1/1) ... [2024-10-11 05:10:07,200 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 05:10:07,200 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:07" (1/1) ... [2024-10-11 05:10:07,201 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:07" (1/1) ... [2024-10-11 05:10:07,211 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:07" (1/1) ... [2024-10-11 05:10:07,217 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:07" (1/1) ... [2024-10-11 05:10:07,219 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:07" (1/1) ... [2024-10-11 05:10:07,221 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:07" (1/1) ... [2024-10-11 05:10:07,224 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 05:10:07,225 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 05:10:07,226 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 05:10:07,226 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 05:10:07,227 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:07" (1/1) ... [2024-10-11 05:10:07,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 05:10:07,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:10:07,257 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 05:10:07,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 05:10:07,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 05:10:07,300 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-10-11 05:10:07,300 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-10-11 05:10:07,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 05:10:07,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 05:10:07,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 05:10:07,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-11 05:10:07,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-11 05:10:07,380 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 05:10:07,382 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 05:10:07,767 INFO L? ?]: Removed 81 outVars from TransFormulas that were not future-live. [2024-10-11 05:10:07,767 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 05:10:07,802 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 05:10:07,803 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 05:10:07,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:10:07 BoogieIcfgContainer [2024-10-11 05:10:07,804 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 05:10:07,806 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 05:10:07,806 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 05:10:07,809 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 05:10:07,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:10:06" (1/3) ... [2024-10-11 05:10:07,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@443738b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:10:07, skipping insertion in model container [2024-10-11 05:10:07,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:07" (2/3) ... [2024-10-11 05:10:07,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@443738b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:10:07, skipping insertion in model container [2024-10-11 05:10:07,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:10:07" (3/3) ... [2024-10-11 05:10:07,814 INFO L112 eAbstractionObserver]: Analyzing ICFG square_5+soft_float_1-3a.c.cil.c [2024-10-11 05:10:07,831 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 05:10:07,831 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 05:10:07,884 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 05:10:07,891 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;@be5ce6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 05:10:07,891 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-11 05:10:07,896 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 85 states have (on average 1.611764705882353) internal successors, (137), 89 states have internal predecessors, (137), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 05:10:07,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 05:10:07,903 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:10:07,904 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 05:10:07,904 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:10:07,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:10:07,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1287136400, now seen corresponding path program 1 times [2024-10-11 05:10:07,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:10:07,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399377638] [2024-10-11 05:10:07,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:10:07,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:10:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:10:08,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 05:10:08,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:10:08,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399377638] [2024-10-11 05:10:08,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399377638] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:10:08,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:10:08,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 05:10:08,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204336442] [2024-10-11 05:10:08,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:10:08,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 05:10:08,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:10:08,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 05:10:08,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 05:10:08,081 INFO L87 Difference]: Start difference. First operand has 99 states, 85 states have (on average 1.611764705882353) internal successors, (137), 89 states have internal predecessors, (137), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 05:10:08,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:10:08,138 INFO L93 Difference]: Finished difference Result 194 states and 312 transitions. [2024-10-11 05:10:08,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 05:10:08,141 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-11 05:10:08,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:10:08,149 INFO L225 Difference]: With dead ends: 194 [2024-10-11 05:10:08,149 INFO L226 Difference]: Without dead ends: 95 [2024-10-11 05:10:08,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 05:10:08,159 INFO L432 NwaCegarLoop]: 140 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, 140 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:10:08,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:10:08,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-10-11 05:10:08,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-10-11 05:10:08,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 82 states have (on average 1.5) internal successors, (123), 85 states have internal predecessors, (123), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 05:10:08,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 140 transitions. [2024-10-11 05:10:08,222 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 140 transitions. Word has length 6 [2024-10-11 05:10:08,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:10:08,222 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 140 transitions. [2024-10-11 05:10:08,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 05:10:08,223 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 140 transitions. [2024-10-11 05:10:08,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 05:10:08,224 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:10:08,224 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 05:10:08,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 05:10:08,225 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:10:08,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:10:08,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1287076818, now seen corresponding path program 1 times [2024-10-11 05:10:08,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:10:08,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058524050] [2024-10-11 05:10:08,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:10:08,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:10:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 05:10:08,244 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 05:10:08,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 05:10:08,281 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 05:10:08,281 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 05:10:08,283 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-10-11 05:10:08,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-11 05:10:08,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 05:10:08,292 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-11 05:10:08,303 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 05:10:08,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 05:10:08 BoogieIcfgContainer [2024-10-11 05:10:08,307 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 05:10:08,308 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 05:10:08,308 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 05:10:08,308 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 05:10:08,309 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:10:07" (3/4) ... [2024-10-11 05:10:08,311 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-11 05:10:08,312 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 05:10:08,312 INFO L158 Benchmark]: Toolchain (without parser) took 1564.61ms. Allocated memory is still 169.9MB. Free memory was 114.6MB in the beginning and 128.7MB in the end (delta: -14.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 05:10:08,313 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 169.9MB. Free memory is still 136.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 05:10:08,314 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.26ms. Allocated memory is still 169.9MB. Free memory was 114.2MB in the beginning and 96.6MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-11 05:10:08,315 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.04ms. Allocated memory is still 169.9MB. Free memory was 96.6MB in the beginning and 94.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 05:10:08,315 INFO L158 Benchmark]: Boogie Preprocessor took 52.37ms. Allocated memory is still 169.9MB. Free memory was 94.1MB in the beginning and 91.5MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 05:10:08,316 INFO L158 Benchmark]: RCFGBuilder took 578.51ms. Allocated memory is still 169.9MB. Free memory was 91.5MB in the beginning and 65.1MB in the end (delta: 26.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-11 05:10:08,316 INFO L158 Benchmark]: TraceAbstraction took 501.11ms. Allocated memory is still 169.9MB. Free memory was 64.8MB in the beginning and 128.7MB in the end (delta: -64.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 05:10:08,316 INFO L158 Benchmark]: Witness Printer took 4.28ms. Allocated memory is still 169.9MB. Free memory is still 128.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 05:10:08,320 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 169.9MB. Free memory is still 136.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.26ms. Allocated memory is still 169.9MB. Free memory was 114.2MB in the beginning and 96.6MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.04ms. Allocated memory is still 169.9MB. Free memory was 96.6MB in the beginning and 94.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.37ms. Allocated memory is still 169.9MB. Free memory was 94.1MB in the beginning and 91.5MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 578.51ms. Allocated memory is still 169.9MB. Free memory was 91.5MB in the beginning and 65.1MB in the end (delta: 26.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 501.11ms. Allocated memory is still 169.9MB. Free memory was 64.8MB in the beginning and 128.7MB in the end (delta: -64.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.28ms. Allocated memory is still 169.9MB. Free memory is still 128.7MB. 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: [L402] COND TRUE __VERIFIER_nondet_int() [L403] 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, 99 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, 140 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, 140 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=99occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-11 05:10:08,351 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6db80c50f6c3923c66cb027dfda5b1b6c51388d665fc6094a25deaee220bcef4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 05:10:10,563 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 05:10:10,636 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-11 05:10:10,642 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 05:10:10,643 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 05:10:10,674 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 05:10:10,677 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 05:10:10,678 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 05:10:10,678 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 05:10:10,679 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 05:10:10,679 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 05:10:10,680 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 05:10:10,680 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 05:10:10,681 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 05:10:10,683 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 05:10:10,683 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 05:10:10,684 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 05:10:10,684 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 05:10:10,684 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 05:10:10,685 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 05:10:10,685 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 05:10:10,689 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 05:10:10,689 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 05:10:10,690 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 05:10:10,690 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 05:10:10,690 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 05:10:10,690 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 05:10:10,691 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 05:10:10,691 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 05:10:10,691 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 05:10:10,691 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 05:10:10,692 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 05:10:10,692 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 05:10:10,693 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 05:10:10,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 05:10:10,699 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 05:10:10,701 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 05:10:10,702 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 05:10:10,702 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 05:10:10,702 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 05:10:10,702 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 05:10:10,702 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 05:10:10,703 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 05:10:10,703 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 05:10:10,703 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 05:10:10,703 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6db80c50f6c3923c66cb027dfda5b1b6c51388d665fc6094a25deaee220bcef4 [2024-10-11 05:10:11,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 05:10:11,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 05:10:11,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 05:10:11,067 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 05:10:11,068 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 05:10:11,069 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c [2024-10-11 05:10:12,567 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 05:10:12,798 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 05:10:12,799 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c [2024-10-11 05:10:12,819 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/bdbf8cdbb/31603cc092d947a1bbf93e1b33b47733/FLAG577e0a509 [2024-10-11 05:10:12,835 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/bdbf8cdbb/31603cc092d947a1bbf93e1b33b47733 [2024-10-11 05:10:12,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 05:10:12,839 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 05:10:12,841 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 05:10:12,842 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 05:10:12,847 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 05:10:12,848 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:10:12" (1/1) ... [2024-10-11 05:10:12,849 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54029330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:12, skipping insertion in model container [2024-10-11 05:10:12,849 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:10:12" (1/1) ... [2024-10-11 05:10:12,885 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 05:10:13,074 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_1-3a.c.cil.c[1998,2011] [2024-10-11 05:10:13,083 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_1-3a.c.cil.c[2367,2380] [2024-10-11 05:10:13,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 05:10:13,171 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 05:10:13,187 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_1-3a.c.cil.c[1998,2011] [2024-10-11 05:10:13,189 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_1-3a.c.cil.c[2367,2380] [2024-10-11 05:10:13,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 05:10:13,239 INFO L204 MainTranslator]: Completed translation [2024-10-11 05:10:13,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:13 WrapperNode [2024-10-11 05:10:13,240 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 05:10:13,241 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 05:10:13,241 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 05:10:13,242 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 05:10:13,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:13" (1/1) ... [2024-10-11 05:10:13,262 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:13" (1/1) ... [2024-10-11 05:10:13,293 INFO L138 Inliner]: procedures = 28, calls = 21, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 167 [2024-10-11 05:10:13,294 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 05:10:13,295 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 05:10:13,295 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 05:10:13,295 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 05:10:13,305 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:13" (1/1) ... [2024-10-11 05:10:13,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:13" (1/1) ... [2024-10-11 05:10:13,310 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:13" (1/1) ... [2024-10-11 05:10:13,326 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 05:10:13,326 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:13" (1/1) ... [2024-10-11 05:10:13,327 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:13" (1/1) ... [2024-10-11 05:10:13,334 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:13" (1/1) ... [2024-10-11 05:10:13,339 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:13" (1/1) ... [2024-10-11 05:10:13,341 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:13" (1/1) ... [2024-10-11 05:10:13,344 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:13" (1/1) ... [2024-10-11 05:10:13,348 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 05:10:13,349 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 05:10:13,349 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 05:10:13,349 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 05:10:13,350 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:13" (1/1) ... [2024-10-11 05:10:13,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 05:10:13,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:10:13,376 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 05:10:13,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 05:10:13,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 05:10:13,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-11 05:10:13,423 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-10-11 05:10:13,423 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-10-11 05:10:13,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 05:10:13,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 05:10:13,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-11 05:10:13,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-11 05:10:13,534 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 05:10:13,536 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 05:10:18,397 INFO L? ?]: Removed 65 outVars from TransFormulas that were not future-live. [2024-10-11 05:10:18,397 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 05:10:18,422 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 05:10:18,422 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 05:10:18,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:10:18 BoogieIcfgContainer [2024-10-11 05:10:18,423 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 05:10:18,425 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 05:10:18,425 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 05:10:18,428 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 05:10:18,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:10:12" (1/3) ... [2024-10-11 05:10:18,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c8a5418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:10:18, skipping insertion in model container [2024-10-11 05:10:18,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:13" (2/3) ... [2024-10-11 05:10:18,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c8a5418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:10:18, skipping insertion in model container [2024-10-11 05:10:18,430 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:10:18" (3/3) ... [2024-10-11 05:10:18,431 INFO L112 eAbstractionObserver]: Analyzing ICFG square_5+soft_float_1-3a.c.cil.c [2024-10-11 05:10:18,458 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 05:10:18,458 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 05:10:18,526 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 05:10:18,534 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;@430660c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 05:10:18,534 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-11 05:10:18,538 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 61 states have (on average 1.639344262295082) internal successors, (100), 65 states have internal predecessors, (100), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 05:10:18,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 05:10:18,544 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:10:18,545 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 05:10:18,546 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:10:18,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:10:18,551 INFO L85 PathProgramCache]: Analyzing trace with hash 607753738, now seen corresponding path program 1 times [2024-10-11 05:10:18,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 05:10:18,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42784796] [2024-10-11 05:10:18,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:10:18,565 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 05:10:18,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 05:10:18,568 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 05:10:18,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-11 05:10:18,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:10:18,957 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-11 05:10:18,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 05:10:18,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 05:10:18,975 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 05:10:18,977 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 05:10:18,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42784796] [2024-10-11 05:10:18,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42784796] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:10:18,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:10:18,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 05:10:18,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469350504] [2024-10-11 05:10:18,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:10:18,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 05:10:18,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 05:10:18,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 05:10:19,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 05:10:19,001 INFO L87 Difference]: Start difference. First operand has 75 states, 61 states have (on average 1.639344262295082) internal successors, (100), 65 states have internal predecessors, (100), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 05:10:19,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:10:19,100 INFO L93 Difference]: Finished difference Result 146 states and 238 transitions. [2024-10-11 05:10:19,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 05:10:19,104 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-11 05:10:19,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:10:19,111 INFO L225 Difference]: With dead ends: 146 [2024-10-11 05:10:19,112 INFO L226 Difference]: Without dead ends: 71 [2024-10-11 05:10:19,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 05:10:19,119 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 05:10:19,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 05:10:19,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-10-11 05:10:19,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-10-11 05:10:19,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 58 states have (on average 1.5172413793103448) internal successors, (88), 61 states have internal predecessors, (88), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 05:10:19,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 105 transitions. [2024-10-11 05:10:19,170 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 105 transitions. Word has length 6 [2024-10-11 05:10:19,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:10:19,170 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 105 transitions. [2024-10-11 05:10:19,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 05:10:19,171 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 105 transitions. [2024-10-11 05:10:19,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 05:10:19,174 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:10:19,174 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 05:10:19,192 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-11 05:10:19,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 05:10:19,376 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:10:19,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:10:19,377 INFO L85 PathProgramCache]: Analyzing trace with hash 607813320, now seen corresponding path program 1 times [2024-10-11 05:10:19,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 05:10:19,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2018482802] [2024-10-11 05:10:19,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:10:19,379 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 05:10:19,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 05:10:19,405 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 05:10:19,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process