./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-floats-scientific-comp/loop3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-floats-scientific-comp/loop3.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 bd7fa6dfe7a0889f513bad4c7cfc96eb426f92168ff26ce4409068874579f6bc --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 18:22:31,702 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 18:22:31,782 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 18:22:31,789 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 18:22:31,790 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 18:22:31,808 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 18:22:31,809 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 18:22:31,810 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 18:22:31,810 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 18:22:31,811 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 18:22:31,812 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 18:22:31,812 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 18:22:31,813 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 18:22:31,813 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 18:22:31,813 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 18:22:31,814 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 18:22:31,814 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 18:22:31,814 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 18:22:31,815 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 18:22:31,815 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 18:22:31,816 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 18:22:31,816 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 18:22:31,816 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 18:22:31,817 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 18:22:31,817 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 18:22:31,818 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 18:22:31,818 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 18:22:31,818 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 18:22:31,819 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 18:22:31,819 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 18:22:31,819 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 18:22:31,820 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 18:22:31,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 18:22:31,820 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 18:22:31,821 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 18:22:31,821 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 18:22:31,821 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 18:22:31,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 18:22:31,822 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 18:22:31,822 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 18:22:31,822 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 18:22:31,823 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 18:22:31,823 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd7fa6dfe7a0889f513bad4c7cfc96eb426f92168ff26ce4409068874579f6bc [2024-11-11 18:22:32,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 18:22:32,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 18:22:32,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 18:22:32,136 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 18:22:32,137 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 18:22:32,138 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-floats-scientific-comp/loop3.c [2024-11-11 18:22:33,922 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 18:22:34,212 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 18:22:34,214 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-floats-scientific-comp/loop3.c [2024-11-11 18:22:34,227 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c43a2eac4/715be11f0204468a97f1c2f145beadb5/FLAG03c39f26c [2024-11-11 18:22:34,560 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c43a2eac4/715be11f0204468a97f1c2f145beadb5 [2024-11-11 18:22:34,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 18:22:34,565 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 18:22:34,566 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 18:22:34,566 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 18:22:34,574 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 18:22:34,575 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:22:34" (1/1) ... [2024-11-11 18:22:34,576 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2decc5a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:34, skipping insertion in model container [2024-11-11 18:22:34,577 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:22:34" (1/1) ... [2024-11-11 18:22:34,600 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 18:22:34,815 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-floats-scientific-comp/loop3.c[472,485] [2024-11-11 18:22:34,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 18:22:34,861 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 18:22:34,873 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-floats-scientific-comp/loop3.c[472,485] [2024-11-11 18:22:34,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 18:22:34,907 INFO L204 MainTranslator]: Completed translation [2024-11-11 18:22:34,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:34 WrapperNode [2024-11-11 18:22:34,908 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 18:22:34,910 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 18:22:34,910 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 18:22:34,910 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 18:22:34,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:34" (1/1) ... [2024-11-11 18:22:34,925 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:34" (1/1) ... [2024-11-11 18:22:34,949 INFO L138 Inliner]: procedures = 15, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2024-11-11 18:22:34,951 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 18:22:34,952 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 18:22:34,953 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 18:22:34,953 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 18:22:34,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:34" (1/1) ... [2024-11-11 18:22:34,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:34" (1/1) ... [2024-11-11 18:22:34,968 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:34" (1/1) ... [2024-11-11 18:22:34,982 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-11 18:22:34,985 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:34" (1/1) ... [2024-11-11 18:22:34,986 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:34" (1/1) ... [2024-11-11 18:22:34,997 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:34" (1/1) ... [2024-11-11 18:22:35,001 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:34" (1/1) ... [2024-11-11 18:22:35,002 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:34" (1/1) ... [2024-11-11 18:22:35,003 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:34" (1/1) ... [2024-11-11 18:22:35,005 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 18:22:35,006 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 18:22:35,006 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 18:22:35,006 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 18:22:35,007 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:34" (1/1) ... [2024-11-11 18:22:35,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 18:22:35,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 18:22:35,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 18:22:35,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 18:22:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 18:22:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 18:22:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-11 18:22:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 18:22:35,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 18:22:35,184 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 18:22:35,186 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 18:22:35,333 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-11 18:22:35,333 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 18:22:35,351 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 18:22:35,352 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-11 18:22:35,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:22:35 BoogieIcfgContainer [2024-11-11 18:22:35,353 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 18:22:35,355 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 18:22:35,355 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 18:22:35,358 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 18:22:35,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:22:34" (1/3) ... [2024-11-11 18:22:35,360 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b38e0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:22:35, skipping insertion in model container [2024-11-11 18:22:35,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:34" (2/3) ... [2024-11-11 18:22:35,360 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b38e0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:22:35, skipping insertion in model container [2024-11-11 18:22:35,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:22:35" (3/3) ... [2024-11-11 18:22:35,363 INFO L112 eAbstractionObserver]: Analyzing ICFG loop3.c [2024-11-11 18:22:35,381 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 18:22:35,381 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 18:22:35,448 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 18:22:35,457 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;@2966db82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 18:22:35,458 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 18:22:35,462 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:22:35,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-11 18:22:35,468 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:22:35,470 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:22:35,471 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:22:35,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:22:35,478 INFO L85 PathProgramCache]: Analyzing trace with hash 119513908, now seen corresponding path program 1 times [2024-11-11 18:22:35,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 18:22:35,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475207504] [2024-11-11 18:22:35,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:22:35,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 18:22:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 18:22:35,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 18:22:35,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 18:22:35,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475207504] [2024-11-11 18:22:35,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475207504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 18:22:35,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 18:22:35,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 18:22:35,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943080828] [2024-11-11 18:22:35,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 18:22:35,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-11 18:22:35,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 18:22:35,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-11 18:22:35,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 18:22:35,696 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 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) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:22:35,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 18:22:35,710 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2024-11-11 18:22:35,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-11 18:22:35,713 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2024-11-11 18:22:35,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 18:22:35,721 INFO L225 Difference]: With dead ends: 25 [2024-11-11 18:22:35,721 INFO L226 Difference]: Without dead ends: 10 [2024-11-11 18:22:35,724 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 18:22:35,729 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 18:22:35,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 18:22:35,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-11 18:22:35,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2024-11-11 18:22:35,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:22:35,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2024-11-11 18:22:35,760 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2024-11-11 18:22:35,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 18:22:35,761 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2024-11-11 18:22:35,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:22:35,761 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2024-11-11 18:22:35,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-11 18:22:35,762 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:22:35,762 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:22:35,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 18:22:35,764 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:22:35,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:22:35,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1186636597, now seen corresponding path program 1 times [2024-11-11 18:22:35,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 18:22:35,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189208623] [2024-11-11 18:22:35,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:22:35,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 18:22:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-11 18:22:35,848 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-11 18:22:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-11 18:22:35,942 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-11 18:22:35,943 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-11 18:22:35,945 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-11 18:22:35,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 18:22:35,952 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-11 18:22:35,971 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-11 18:22:35,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:22:35 BoogieIcfgContainer [2024-11-11 18:22:35,975 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-11 18:22:35,976 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-11 18:22:35,976 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-11 18:22:35,976 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-11 18:22:35,977 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:22:35" (3/4) ... [2024-11-11 18:22:35,979 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-11 18:22:35,980 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-11 18:22:35,982 INFO L158 Benchmark]: Toolchain (without parser) took 1415.73ms. Allocated memory is still 165.7MB. Free memory was 132.9MB in the beginning and 128.7MB in the end (delta: 4.2MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2024-11-11 18:22:35,983 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 121.6MB. Free memory was 83.3MB in the beginning and 83.2MB in the end (delta: 119.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 18:22:35,983 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.79ms. Allocated memory is still 165.7MB. Free memory was 132.2MB in the beginning and 119.7MB in the end (delta: 12.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-11 18:22:35,984 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.18ms. Allocated memory is still 165.7MB. Free memory was 119.7MB in the beginning and 118.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-11 18:22:35,987 INFO L158 Benchmark]: Boogie Preprocessor took 52.36ms. Allocated memory is still 165.7MB. Free memory was 118.2MB in the beginning and 116.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-11 18:22:35,987 INFO L158 Benchmark]: RCFGBuilder took 347.52ms. Allocated memory is still 165.7MB. Free memory was 116.1MB in the beginning and 105.0MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-11 18:22:35,988 INFO L158 Benchmark]: TraceAbstraction took 620.19ms. Allocated memory is still 165.7MB. Free memory was 104.4MB in the beginning and 129.7MB in the end (delta: -25.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 18:22:35,988 INFO L158 Benchmark]: Witness Printer took 4.01ms. Allocated memory is still 165.7MB. Free memory was 129.7MB in the beginning and 128.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 18:22:35,991 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 121.6MB. Free memory was 83.3MB in the beginning and 83.2MB in the end (delta: 119.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.79ms. Allocated memory is still 165.7MB. Free memory was 132.2MB in the beginning and 119.7MB in the end (delta: 12.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.18ms. Allocated memory is still 165.7MB. Free memory was 119.7MB in the beginning and 118.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.36ms. Allocated memory is still 165.7MB. Free memory was 118.2MB in the beginning and 116.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 347.52ms. Allocated memory is still 165.7MB. Free memory was 116.1MB in the beginning and 105.0MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 620.19ms. Allocated memory is still 165.7MB. Free memory was 104.4MB in the beginning and 129.7MB in the end (delta: -25.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.01ms. Allocated memory is still 165.7MB. Free memory was 129.7MB in the beginning and 128.7MB in the end (delta: 1.0MB). 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: 13]: 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 51, overapproximation of to_real at line 22, overapproximation of someBinaryArithmeticFLOAToperation at line 34. Possible FailurePath: [L15] float pi = 3.14159 ; VAL [pi=314159/100000] [L21] float x = __VERIFIER_nondet_float() ; [L22] float octant1 = 0 ; [L23] float octant2 = pi/8 ; [L24] CALL assume_abort_if_not(x > octant1 && x < octant2) [L11] COND FALSE !(!cond) VAL [pi=314159/100000] [L24] RET assume_abort_if_not(x > octant1 && x < octant2) [L25] float oddExp = x ; [L26] float evenExp = 1.0 ; [L27] float term = x ; [L28] unsigned int count = 2 ; [L29] int multFactor = 0 ; [L30] int temp ; VAL [count=2, pi=314159/100000] [L32] COND TRUE 1 [L34] term = term * (x/count) [L35] multFactor = (count>>1 % 2 == 0) ? 1 : -1 [L37] evenExp = evenExp + multFactor*term [L39] count++ [L41] term = term * (x/count) [L43] oddExp = oddExp + multFactor*term [L45] count++ [L47] temp = __VERIFIER_nondet_int() [L48] COND TRUE temp == 0 VAL [count=4, pi=314159/100000] [L51] CALL __VERIFIER_assert( evenExp >= oddExp ) [L13] COND TRUE !(cond) VAL [pi=314159/100000] [L13] reach_error() VAL [pi=314159/100000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 14 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-11 18:22:36,019 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/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-floats-scientific-comp/loop3.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 bd7fa6dfe7a0889f513bad4c7cfc96eb426f92168ff26ce4409068874579f6bc --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 18:22:38,571 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 18:22:38,631 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-11 18:22:38,636 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 18:22:38,637 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 18:22:38,672 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 18:22:38,673 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 18:22:38,674 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 18:22:38,675 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 18:22:38,676 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 18:22:38,677 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 18:22:38,677 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 18:22:38,678 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 18:22:38,678 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 18:22:38,679 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 18:22:38,682 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 18:22:38,683 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 18:22:38,683 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 18:22:38,683 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 18:22:38,684 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 18:22:38,684 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 18:22:38,684 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 18:22:38,685 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 18:22:38,685 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-11 18:22:38,685 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-11 18:22:38,685 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 18:22:38,686 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-11 18:22:38,686 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 18:22:38,686 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 18:22:38,686 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 18:22:38,686 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 18:22:38,687 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 18:22:38,687 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 18:22:38,691 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 18:22:38,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 18:22:38,692 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 18:22:38,692 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 18:22:38,692 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 18:22:38,693 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-11 18:22:38,693 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-11 18:22:38,693 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 18:22:38,695 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 18:22:38,695 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 18:22:38,695 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 18:22:38,695 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd7fa6dfe7a0889f513bad4c7cfc96eb426f92168ff26ce4409068874579f6bc [2024-11-11 18:22:39,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 18:22:39,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 18:22:39,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 18:22:39,057 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 18:22:39,058 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 18:22:39,059 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-floats-scientific-comp/loop3.c [2024-11-11 18:22:40,971 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 18:22:41,185 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 18:22:41,187 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-floats-scientific-comp/loop3.c [2024-11-11 18:22:41,203 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9a48490a/d6306194b84c4a8bba2e3a23f272874a/FLAG8da14e4c0 [2024-11-11 18:22:41,221 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9a48490a/d6306194b84c4a8bba2e3a23f272874a [2024-11-11 18:22:41,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 18:22:41,226 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 18:22:41,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 18:22:41,228 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 18:22:41,234 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 18:22:41,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:22:41" (1/1) ... [2024-11-11 18:22:41,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63f9eb03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:41, skipping insertion in model container [2024-11-11 18:22:41,238 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:22:41" (1/1) ... [2024-11-11 18:22:41,259 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 18:22:41,476 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-floats-scientific-comp/loop3.c[472,485] [2024-11-11 18:22:41,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 18:22:41,521 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 18:22:41,535 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-floats-scientific-comp/loop3.c[472,485] [2024-11-11 18:22:41,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 18:22:41,570 INFO L204 MainTranslator]: Completed translation [2024-11-11 18:22:41,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:41 WrapperNode [2024-11-11 18:22:41,571 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 18:22:41,572 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 18:22:41,572 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 18:22:41,572 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 18:22:41,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:41" (1/1) ... [2024-11-11 18:22:41,592 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:41" (1/1) ... [2024-11-11 18:22:41,617 INFO L138 Inliner]: procedures = 16, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2024-11-11 18:22:41,620 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 18:22:41,621 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 18:22:41,622 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 18:22:41,622 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 18:22:41,633 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:41" (1/1) ... [2024-11-11 18:22:41,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:41" (1/1) ... [2024-11-11 18:22:41,637 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:41" (1/1) ... [2024-11-11 18:22:41,654 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-11 18:22:41,655 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:41" (1/1) ... [2024-11-11 18:22:41,655 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:41" (1/1) ... [2024-11-11 18:22:41,667 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:41" (1/1) ... [2024-11-11 18:22:41,674 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:41" (1/1) ... [2024-11-11 18:22:41,678 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:41" (1/1) ... [2024-11-11 18:22:41,679 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:41" (1/1) ... [2024-11-11 18:22:41,684 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 18:22:41,685 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 18:22:41,685 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 18:22:41,685 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 18:22:41,687 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:41" (1/1) ... [2024-11-11 18:22:41,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 18:22:41,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 18:22:41,732 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 18:22:41,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 18:22:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 18:22:41,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-11 18:22:41,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-11 18:22:41,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 18:22:41,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 18:22:41,864 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 18:22:41,866 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 18:22:46,250 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-11 18:22:46,251 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 18:22:46,264 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 18:22:46,265 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-11 18:22:46,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:22:46 BoogieIcfgContainer [2024-11-11 18:22:46,265 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 18:22:46,268 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 18:22:46,268 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 18:22:46,271 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 18:22:46,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:22:41" (1/3) ... [2024-11-11 18:22:46,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@295699dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:22:46, skipping insertion in model container [2024-11-11 18:22:46,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:41" (2/3) ... [2024-11-11 18:22:46,273 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@295699dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:22:46, skipping insertion in model container [2024-11-11 18:22:46,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:22:46" (3/3) ... [2024-11-11 18:22:46,274 INFO L112 eAbstractionObserver]: Analyzing ICFG loop3.c [2024-11-11 18:22:46,294 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 18:22:46,295 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 18:22:46,348 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 18:22:46,355 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;@60ca27ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 18:22:46,356 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 18:22:46,360 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:22:46,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-11 18:22:46,366 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:22:46,367 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:22:46,367 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:22:46,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:22:46,374 INFO L85 PathProgramCache]: Analyzing trace with hash 119513908, now seen corresponding path program 1 times [2024-11-11 18:22:46,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-11 18:22:46,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [645267347] [2024-11-11 18:22:46,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:22:46,391 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-11 18:22:46,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-11 18:22:46,401 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-11 18:22:46,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-11 18:22:46,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 18:22:46,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-11 18:22:46,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 18:22:46,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 18:22:46,584 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 18:22:46,585 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-11 18:22:46,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [645267347] [2024-11-11 18:22:46,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [645267347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 18:22:46,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 18:22:46,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 18:22:46,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942117258] [2024-11-11 18:22:46,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 18:22:46,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-11 18:22:46,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-11 18:22:46,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-11 18:22:46,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 18:22:46,622 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 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) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:22:46,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 18:22:46,635 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2024-11-11 18:22:46,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-11 18:22:46,637 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2024-11-11 18:22:46,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 18:22:46,643 INFO L225 Difference]: With dead ends: 25 [2024-11-11 18:22:46,645 INFO L226 Difference]: Without dead ends: 10 [2024-11-11 18:22:46,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 18:22:46,652 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 18:22:46,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 18:22:46,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-11 18:22:46,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2024-11-11 18:22:46,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:22:46,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2024-11-11 18:22:46,683 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2024-11-11 18:22:46,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 18:22:46,684 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2024-11-11 18:22:46,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:22:46,685 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2024-11-11 18:22:46,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-11 18:22:46,686 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:22:46,686 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:22:46,694 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-11 18:22:46,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-11 18:22:46,889 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:22:46,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:22:46,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1186636597, now seen corresponding path program 1 times [2024-11-11 18:22:46,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-11 18:22:46,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [584736055] [2024-11-11 18:22:46,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:22:46,892 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-11 18:22:46,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-11 18:22:46,894 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-11 18:22:46,910 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 [2024-11-11 18:22:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 18:22:50,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-11 18:22:50,148 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 18:23:01,693 WARN L286 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-11 18:23:09,951 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-11 18:23:18,209 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-11 18:23:26,412 WARN L286 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-11 18:23:30,488 WARN L851 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv4294967295 32))) (.cse1 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| ((_ to_fp_unsigned 8 24) roundNearestTiesToEven (_ bv2 32)))))) (and (= |c_ULTIMATE.start_main_~evenExp~0#1| (fp.add roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (fp.mul roundNearestTiesToEven .cse0 .cse1))) (fp.lt |ULTIMATE.start_main_~x~0#1| (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 314159.0 100000.0))) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv8 32)))) (fp.gt |ULTIMATE.start_main_~x~0#1| ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32))) (= (fp.add roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| (fp.mul roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven .cse1 (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| ((_ to_fp_unsigned 8 24) roundNearestTiesToEven (_ bv3 32)))))) |c_ULTIMATE.start_main_~oddExp~0#1|)))) is different from false [2024-11-11 18:23:34,540 WARN L873 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv4294967295 32))) (.cse1 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| ((_ to_fp_unsigned 8 24) roundNearestTiesToEven (_ bv2 32)))))) (and (= |c_ULTIMATE.start_main_~evenExp~0#1| (fp.add roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (fp.mul roundNearestTiesToEven .cse0 .cse1))) (fp.lt |ULTIMATE.start_main_~x~0#1| (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 314159.0 100000.0))) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv8 32)))) (fp.gt |ULTIMATE.start_main_~x~0#1| ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32))) (= (fp.add roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| (fp.mul roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven .cse1 (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| ((_ to_fp_unsigned 8 24) roundNearestTiesToEven (_ bv3 32)))))) |c_ULTIMATE.start_main_~oddExp~0#1|)))) is different from true [2024-11-11 18:23:42,800 WARN L286 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-11 18:23:51,082 WARN L286 SmtUtils]: Spent 8.28s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-11 18:23:59,377 WARN L286 SmtUtils]: Spent 8.29s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-11 18:24:07,585 WARN L286 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)