./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0740.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0740.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 572c7cb96a3cac2508d636eadb6e6d621d12dc30df0412537cec32d2105ec801 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 11:49:57,733 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 11:49:57,808 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 11:49:57,813 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 11:49:57,814 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 11:49:57,853 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 11:49:57,856 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 11:49:57,857 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 11:49:57,858 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 11:49:57,858 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 11:49:57,859 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 11:49:57,859 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 11:49:57,860 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 11:49:57,862 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 11:49:57,863 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 11:49:57,863 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 11:49:57,863 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 11:49:57,864 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 11:49:57,864 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 11:49:57,864 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 11:49:57,864 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 11:49:57,868 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 11:49:57,869 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 11:49:57,869 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 11:49:57,869 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 11:49:57,869 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 11:49:57,870 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 11:49:57,870 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 11:49:57,870 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 11:49:57,871 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 11:49:57,871 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 11:49:57,871 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 11:49:57,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:49:57,872 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 11:49:57,876 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 11:49:57,877 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 11:49:57,878 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 11:49:57,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 11:49:57,879 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 11:49:57,879 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 11:49:57,879 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 11:49:57,879 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 11:49:57,880 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 572c7cb96a3cac2508d636eadb6e6d621d12dc30df0412537cec32d2105ec801 [2024-11-18 11:49:58,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 11:49:58,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 11:49:58,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 11:49:58,192 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 11:49:58,192 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 11:49:58,194 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2024-11-18 11:49:59,769 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 11:49:59,963 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 11:49:59,963 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2024-11-18 11:49:59,971 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d9c5caf9/6a7992de709640088721dc6f24d6caf0/FLAG6d343db99 [2024-11-18 11:49:59,985 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d9c5caf9/6a7992de709640088721dc6f24d6caf0 [2024-11-18 11:49:59,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 11:49:59,988 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 11:49:59,989 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 11:49:59,989 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 11:49:59,995 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 11:49:59,996 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:49:59" (1/1) ... [2024-11-18 11:49:59,997 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dfbeafc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:49:59, skipping insertion in model container [2024-11-18 11:49:59,997 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:49:59" (1/1) ... [2024-11-18 11:50:00,026 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 11:50:00,257 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/float-newlib/float_req_bl_0740.c[1930,1943] [2024-11-18 11:50:00,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:50:00,276 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 11:50:00,310 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/float-newlib/float_req_bl_0740.c[1930,1943] [2024-11-18 11:50:00,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:50:00,334 INFO L204 MainTranslator]: Completed translation [2024-11-18 11:50:00,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:00 WrapperNode [2024-11-18 11:50:00,336 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 11:50:00,337 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 11:50:00,338 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 11:50:00,338 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 11:50:00,345 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:00" (1/1) ... [2024-11-18 11:50:00,358 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:00" (1/1) ... [2024-11-18 11:50:00,392 INFO L138 Inliner]: procedures = 17, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 132 [2024-11-18 11:50:00,393 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 11:50:00,393 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 11:50:00,394 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 11:50:00,394 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 11:50:00,404 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:00" (1/1) ... [2024-11-18 11:50:00,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:00" (1/1) ... [2024-11-18 11:50:00,407 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:00" (1/1) ... [2024-11-18 11:50:00,430 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-11-18 11:50:00,431 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:00" (1/1) ... [2024-11-18 11:50:00,431 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:00" (1/1) ... [2024-11-18 11:50:00,445 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:00" (1/1) ... [2024-11-18 11:50:00,451 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:00" (1/1) ... [2024-11-18 11:50:00,452 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:00" (1/1) ... [2024-11-18 11:50:00,454 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:00" (1/1) ... [2024-11-18 11:50:00,456 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 11:50:00,457 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 11:50:00,457 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 11:50:00,457 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 11:50:00,458 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:00" (1/1) ... [2024-11-18 11:50:00,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:50:00,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:50:00,506 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 11:50:00,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 11:50:00,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 11:50:00,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 11:50:00,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 11:50:00,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-18 11:50:00,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-18 11:50:00,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-18 11:50:00,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-18 11:50:00,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-18 11:50:00,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-18 11:50:00,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-18 11:50:00,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-18 11:50:00,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-18 11:50:00,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-18 11:50:00,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-18 11:50:00,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 11:50:00,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 11:50:00,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-18 11:50:00,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-18 11:50:00,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-18 11:50:00,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-18 11:50:00,642 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 11:50:00,645 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 11:50:00,889 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-18 11:50:00,890 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 11:50:00,912 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 11:50:00,913 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-18 11:50:00,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:50:00 BoogieIcfgContainer [2024-11-18 11:50:00,914 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 11:50:00,916 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 11:50:00,918 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 11:50:00,921 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 11:50:00,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:49:59" (1/3) ... [2024-11-18 11:50:00,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31205c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:50:00, skipping insertion in model container [2024-11-18 11:50:00,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:00" (2/3) ... [2024-11-18 11:50:00,923 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31205c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:50:00, skipping insertion in model container [2024-11-18 11:50:00,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:50:00" (3/3) ... [2024-11-18 11:50:00,925 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0740.c [2024-11-18 11:50:00,943 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 11:50:00,943 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 11:50:01,000 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 11:50:01,007 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;@442c916d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 11:50:01,008 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 11:50:01,011 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 38 states have (on average 1.605263157894737) internal successors, (61), 39 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:50:01,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-18 11:50:01,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:50:01,017 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:50:01,017 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:50:01,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:50:01,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1902964816, now seen corresponding path program 1 times [2024-11-18 11:50:01,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:50:01,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248124241] [2024-11-18 11:50:01,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:50:01,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:50:01,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:50:01,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:50:01,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:50:01,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248124241] [2024-11-18 11:50:01,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248124241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:50:01,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:50:01,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 11:50:01,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672846662] [2024-11-18 11:50:01,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:50:01,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 11:50:01,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:50:01,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 11:50:01,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 11:50:01,231 INFO L87 Difference]: Start difference. First operand has 40 states, 38 states have (on average 1.605263157894737) internal successors, (61), 39 states have internal predecessors, (61), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:50:01,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:50:01,247 INFO L93 Difference]: Finished difference Result 78 states and 120 transitions. [2024-11-18 11:50:01,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 11:50:01,252 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2024-11-18 11:50:01,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:50:01,259 INFO L225 Difference]: With dead ends: 78 [2024-11-18 11:50:01,259 INFO L226 Difference]: Without dead ends: 37 [2024-11-18 11:50:01,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 11:50:01,265 INFO L432 NwaCegarLoop]: 53 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, 53 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 11:50:01,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 11:50:01,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-18 11:50:01,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-18 11:50:01,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 36 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:50:01,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 50 transitions. [2024-11-18 11:50:01,299 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 50 transitions. Word has length 9 [2024-11-18 11:50:01,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:50:01,299 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 50 transitions. [2024-11-18 11:50:01,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:50:01,300 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions. [2024-11-18 11:50:01,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-18 11:50:01,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:50:01,301 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:50:01,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 11:50:01,301 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:50:01,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:50:01,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1485385997, now seen corresponding path program 1 times [2024-11-18 11:50:01,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:50:01,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977338213] [2024-11-18 11:50:01,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:50:01,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:50:01,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 11:50:01,373 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-18 11:50:01,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 11:50:01,442 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-18 11:50:01,443 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-18 11:50:01,444 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 11:50:01,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 11:50:01,452 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-18 11:50:01,475 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 11:50:01,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:50:01 BoogieIcfgContainer [2024-11-18 11:50:01,481 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 11:50:01,482 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 11:50:01,482 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 11:50:01,501 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 11:50:01,501 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:50:00" (3/4) ... [2024-11-18 11:50:01,509 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-18 11:50:01,510 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 11:50:01,515 INFO L158 Benchmark]: Toolchain (without parser) took 1526.44ms. Allocated memory is still 163.6MB. Free memory was 109.4MB in the beginning and 132.5MB in the end (delta: -23.1MB). Peak memory consumption was 71.4MB. Max. memory is 16.1GB. [2024-11-18 11:50:01,515 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 163.6MB. Free memory is still 127.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 11:50:01,515 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.86ms. Allocated memory is still 163.6MB. Free memory was 109.4MB in the beginning and 94.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-18 11:50:01,516 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.08ms. Allocated memory is still 163.6MB. Free memory was 94.7MB in the beginning and 92.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 11:50:01,516 INFO L158 Benchmark]: Boogie Preprocessor took 62.90ms. Allocated memory is still 163.6MB. Free memory was 92.6MB in the beginning and 89.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 11:50:01,516 INFO L158 Benchmark]: RCFGBuilder took 456.67ms. Allocated memory is still 163.6MB. Free memory was 89.9MB in the beginning and 73.7MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-18 11:50:01,517 INFO L158 Benchmark]: TraceAbstraction took 564.78ms. Allocated memory is still 163.6MB. Free memory was 72.8MB in the beginning and 45.5MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-18 11:50:01,517 INFO L158 Benchmark]: Witness Printer took 32.17ms. Allocated memory is still 163.6MB. Free memory was 45.5MB in the beginning and 132.5MB in the end (delta: -86.9MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2024-11-18 11:50:01,526 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 163.6MB. Free memory is still 127.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.86ms. Allocated memory is still 163.6MB. Free memory was 109.4MB in the beginning and 94.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.08ms. Allocated memory is still 163.6MB. Free memory was 94.7MB in the beginning and 92.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.90ms. Allocated memory is still 163.6MB. Free memory was 92.6MB in the beginning and 89.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 456.67ms. Allocated memory is still 163.6MB. Free memory was 89.9MB in the beginning and 73.7MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 564.78ms. Allocated memory is still 163.6MB. Free memory was 72.8MB in the beginning and 45.5MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 32.17ms. Allocated memory is still 163.6MB. Free memory was 45.5MB in the beginning and 132.5MB in the end (delta: -86.9MB). Peak memory consumption was 8.5MB. 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: 99]: 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 15, overapproximation of someBinaryArithmeticFLOAToperation at line 32. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L93] float x = -1.0f / 0.0f; [L95] CALL, EXPR __ieee754_sqrtf(x) [L20] float z; [L21] __uint32_t r, hx; [L22] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450953] [L25] ieee_float_shape_type gf_u; [L26] gf_u.value = (x) [L27] EXPR gf_u.word [L27] (ix) = gf_u.word [L29] hx = ix & 0x7fffffff VAL [hx=2147483647, ix=2147483647, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450953] [L31] COND TRUE !((hx) < 0x7f800000L) [L32] return x * x + x; VAL [ix=2147483647, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450953] [L95] RET, EXPR __ieee754_sqrtf(x) [L95] float res = __ieee754_sqrtf(x); [L98] CALL, EXPR isnan_float(res) [L15] return x != x; VAL [\result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L98] RET, EXPR isnan_float(res) [L98] COND TRUE !isnan_float(res) [L99] reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 40 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, 53 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, 53 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=40occurred 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, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-18 11:50:01,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0740.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 572c7cb96a3cac2508d636eadb6e6d621d12dc30df0412537cec32d2105ec801 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 11:50:03,902 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 11:50:04,000 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-18 11:50:04,005 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 11:50:04,007 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 11:50:04,038 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 11:50:04,041 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 11:50:04,042 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 11:50:04,043 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 11:50:04,044 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 11:50:04,044 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 11:50:04,044 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 11:50:04,045 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 11:50:04,045 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 11:50:04,047 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 11:50:04,048 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 11:50:04,048 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 11:50:04,048 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 11:50:04,048 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 11:50:04,049 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 11:50:04,049 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 11:50:04,053 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 11:50:04,054 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 11:50:04,054 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-18 11:50:04,054 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-18 11:50:04,054 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 11:50:04,054 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-18 11:50:04,055 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 11:50:04,055 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 11:50:04,055 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 11:50:04,055 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 11:50:04,056 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 11:50:04,056 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 11:50:04,056 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 11:50:04,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:50:04,058 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 11:50:04,058 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 11:50:04,059 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 11:50:04,059 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-18 11:50:04,060 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-18 11:50:04,060 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 11:50:04,060 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 11:50:04,060 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 11:50:04,061 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 11:50:04,061 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 572c7cb96a3cac2508d636eadb6e6d621d12dc30df0412537cec32d2105ec801 [2024-11-18 11:50:04,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 11:50:04,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 11:50:04,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 11:50:04,423 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 11:50:04,424 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 11:50:04,425 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2024-11-18 11:50:05,999 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 11:50:06,203 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 11:50:06,204 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2024-11-18 11:50:06,212 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4457ac536/417294b7076d4ef7810a29e01905553b/FLAGaf7af9342 [2024-11-18 11:50:06,225 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4457ac536/417294b7076d4ef7810a29e01905553b [2024-11-18 11:50:06,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 11:50:06,228 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 11:50:06,230 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 11:50:06,230 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 11:50:06,237 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 11:50:06,238 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:50:06" (1/1) ... [2024-11-18 11:50:06,239 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d5bfd94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:06, skipping insertion in model container [2024-11-18 11:50:06,239 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:50:06" (1/1) ... [2024-11-18 11:50:06,261 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 11:50:06,495 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/float-newlib/float_req_bl_0740.c[1930,1943] [2024-11-18 11:50:06,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:50:06,524 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 11:50:06,560 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/float-newlib/float_req_bl_0740.c[1930,1943] [2024-11-18 11:50:06,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:50:06,603 INFO L204 MainTranslator]: Completed translation [2024-11-18 11:50:06,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:06 WrapperNode [2024-11-18 11:50:06,605 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 11:50:06,606 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 11:50:06,606 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 11:50:06,606 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 11:50:06,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:06" (1/1) ... [2024-11-18 11:50:06,623 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:06" (1/1) ... [2024-11-18 11:50:06,645 INFO L138 Inliner]: procedures = 20, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 115 [2024-11-18 11:50:06,646 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 11:50:06,646 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 11:50:06,646 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 11:50:06,646 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 11:50:06,658 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:06" (1/1) ... [2024-11-18 11:50:06,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:06" (1/1) ... [2024-11-18 11:50:06,665 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:06" (1/1) ... [2024-11-18 11:50:06,695 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-11-18 11:50:06,696 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:06" (1/1) ... [2024-11-18 11:50:06,699 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:06" (1/1) ... [2024-11-18 11:50:06,712 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:06" (1/1) ... [2024-11-18 11:50:06,718 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:06" (1/1) ... [2024-11-18 11:50:06,721 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:06" (1/1) ... [2024-11-18 11:50:06,723 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:06" (1/1) ... [2024-11-18 11:50:06,726 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 11:50:06,727 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 11:50:06,727 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 11:50:06,727 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 11:50:06,728 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:06" (1/1) ... [2024-11-18 11:50:06,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:50:06,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:50:06,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 11:50:06,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 11:50:06,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 11:50:06,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-18 11:50:06,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-18 11:50:06,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-18 11:50:06,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-18 11:50:06,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-18 11:50:06,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-18 11:50:06,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-18 11:50:06,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-18 11:50:06,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-18 11:50:06,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-18 11:50:06,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 11:50:06,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 11:50:06,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-18 11:50:06,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-18 11:50:06,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-18 11:50:06,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-18 11:50:06,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-18 11:50:06,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-18 11:50:06,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-18 11:50:06,897 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 11:50:06,899 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 11:50:07,562 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-18 11:50:07,562 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 11:50:07,575 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 11:50:07,575 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-18 11:50:07,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:50:07 BoogieIcfgContainer [2024-11-18 11:50:07,577 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 11:50:07,579 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 11:50:07,579 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 11:50:07,582 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 11:50:07,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:50:06" (1/3) ... [2024-11-18 11:50:07,583 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69257d60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:50:07, skipping insertion in model container [2024-11-18 11:50:07,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:50:06" (2/3) ... [2024-11-18 11:50:07,583 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69257d60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:50:07, skipping insertion in model container [2024-11-18 11:50:07,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:50:07" (3/3) ... [2024-11-18 11:50:07,585 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0740.c [2024-11-18 11:50:07,601 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 11:50:07,602 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 11:50:07,665 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 11:50:07,680 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;@661f6655, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 11:50:07,680 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 11:50:07,684 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 32 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:50:07,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-18 11:50:07,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:50:07,690 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:50:07,691 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:50:07,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:50:07,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2024-11-18 11:50:07,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:50:07,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [781933774] [2024-11-18 11:50:07,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:50:07,708 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:50:07,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:50:07,711 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 11:50:07,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-18 11:50:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:50:07,884 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 11:50:07,889 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:50:07,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:50:07,905 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:50:07,905 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:50:07,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [781933774] [2024-11-18 11:50:07,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [781933774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:50:07,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:50:07,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 11:50:07,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981395585] [2024-11-18 11:50:07,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:50:07,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 11:50:07,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:50:07,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 11:50:07,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 11:50:07,935 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 32 states have internal predecessors, (50), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:50:07,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:50:07,950 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2024-11-18 11:50:07,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 11:50:07,952 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2024-11-18 11:50:07,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:50:07,961 INFO L225 Difference]: With dead ends: 64 [2024-11-18 11:50:07,961 INFO L226 Difference]: Without dead ends: 30 [2024-11-18 11:50:07,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 11:50:07,969 INFO L432 NwaCegarLoop]: 43 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, 43 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 11:50:07,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 11:50:07,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-18 11:50:07,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-18 11:50:08,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:50:08,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2024-11-18 11:50:08,004 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2024-11-18 11:50:08,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:50:08,004 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2024-11-18 11:50:08,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:50:08,005 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2024-11-18 11:50:08,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-18 11:50:08,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:50:08,005 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:50:08,013 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-18 11:50:08,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:50:08,210 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:50:08,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:50:08,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2024-11-18 11:50:08,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:50:08,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419865727] [2024-11-18 11:50:08,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:50:08,212 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:50:08,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:50:08,214 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 11:50:08,216 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 [2024-11-18 11:50:08,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:50:08,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-18 11:50:08,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:50:08,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:50:08,599 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:50:08,599 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:50:08,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419865727] [2024-11-18 11:50:08,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419865727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:50:08,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:50:08,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 11:50:08,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980362297] [2024-11-18 11:50:08,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:50:08,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 11:50:08,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:50:08,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 11:50:08,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-18 11:50:08,607 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) [2024-11-18 11:50:09,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:50:09,287 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2024-11-18 11:50:09,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 11:50:09,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) Word has length 10 [2024-11-18 11:50:09,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:50:09,289 INFO L225 Difference]: With dead ends: 36 [2024-11-18 11:50:09,290 INFO L226 Difference]: Without dead ends: 31 [2024-11-18 11:50:09,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-18 11:50:09,291 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 37 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 11:50:09,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 126 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 11:50:09,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-18 11:50:09,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2024-11-18 11:50:09,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 29 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:50:09,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2024-11-18 11:50:09,298 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 10 [2024-11-18 11:50:09,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:50:09,298 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2024-11-18 11:50:09,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) [2024-11-18 11:50:09,298 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2024-11-18 11:50:09,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-18 11:50:09,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:50:09,299 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:50:09,305 INFO L540 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)] Forceful destruction successful, exit code 0 [2024-11-18 11:50:09,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:50:09,500 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:50:09,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:50:09,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1245605874, now seen corresponding path program 1 times [2024-11-18 11:50:09,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:50:09,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124893594] [2024-11-18 11:50:09,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:50:09,501 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:50:09,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:50:09,505 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 11:50:09,506 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 (4)] Waiting until timeout for monitored process [2024-11-18 11:50:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:50:09,605 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-18 11:50:09,607 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:50:09,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-18 11:50:09,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2024-11-18 11:50:09,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:50:09,844 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:50:09,844 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:50:09,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1124893594] [2024-11-18 11:50:09,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1124893594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:50:09,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:50:09,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 11:50:09,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485155222] [2024-11-18 11:50:09,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:50:09,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 11:50:09,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:50:09,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 11:50:09,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 11:50:09,846 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:50:09,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:50:09,988 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2024-11-18 11:50:09,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 11:50:09,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 11 [2024-11-18 11:50:09,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:50:09,989 INFO L225 Difference]: With dead ends: 30 [2024-11-18 11:50:09,989 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 11:50:09,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 11:50:09,990 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 11:50:09,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 11:50:09,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 11:50:09,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 11:50:09,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:50:09,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 11:50:09,992 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2024-11-18 11:50:09,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:50:09,992 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 11:50:09,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:50:09,993 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 11:50:09,993 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 11:50:09,998 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 11:50:10,007 INFO L540 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 (4)] Forceful destruction successful, exit code 0 [2024-11-18 11:50:10,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:50:10,207 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-18 11:50:10,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 11:50:10,277 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 11:50:10,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:50:10 BoogieIcfgContainer [2024-11-18 11:50:10,312 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 11:50:10,313 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 11:50:10,316 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 11:50:10,316 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 11:50:10,317 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:50:07" (3/4) ... [2024-11-18 11:50:10,320 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 11:50:10,329 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-18 11:50:10,330 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-18 11:50:10,330 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-18 11:50:10,331 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 11:50:10,499 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 11:50:10,500 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 11:50:10,500 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 11:50:10,501 INFO L158 Benchmark]: Toolchain (without parser) took 4272.39ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 50.9MB in the beginning and 67.9MB in the end (delta: -16.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 11:50:10,501 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 60.8MB. Free memory is still 29.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 11:50:10,502 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.22ms. Allocated memory is still 79.7MB. Free memory was 50.8MB in the beginning and 58.4MB in the end (delta: -7.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-18 11:50:10,502 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.90ms. Allocated memory is still 79.7MB. Free memory was 58.1MB in the beginning and 56.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 11:50:10,503 INFO L158 Benchmark]: Boogie Preprocessor took 79.77ms. Allocated memory is still 79.7MB. Free memory was 56.4MB in the beginning and 53.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 11:50:10,503 INFO L158 Benchmark]: RCFGBuilder took 850.24ms. Allocated memory is still 79.7MB. Free memory was 53.6MB in the beginning and 37.5MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-18 11:50:10,504 INFO L158 Benchmark]: TraceAbstraction took 2733.65ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 36.9MB in the beginning and 73.2MB in the end (delta: -36.3MB). Peak memory consumption was 526.0kB. Max. memory is 16.1GB. [2024-11-18 11:50:10,504 INFO L158 Benchmark]: Witness Printer took 187.17ms. Allocated memory is still 96.5MB. Free memory was 73.2MB in the beginning and 67.9MB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 11:50:10,506 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 60.8MB. Free memory is still 29.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 375.22ms. Allocated memory is still 79.7MB. Free memory was 50.8MB in the beginning and 58.4MB in the end (delta: -7.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.90ms. Allocated memory is still 79.7MB. Free memory was 58.1MB in the beginning and 56.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.77ms. Allocated memory is still 79.7MB. Free memory was 56.4MB in the beginning and 53.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 850.24ms. Allocated memory is still 79.7MB. Free memory was 53.6MB in the beginning and 37.5MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2733.65ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 36.9MB in the beginning and 73.2MB in the end (delta: -36.3MB). Peak memory consumption was 526.0kB. Max. memory is 16.1GB. * Witness Printer took 187.17ms. Allocated memory is still 96.5MB. Free memory was 73.2MB in the beginning and 67.9MB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 99]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 176 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 98 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 78 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 4 QuantifiedInterpolants, 168 SizeOfPredicates, 6 NumberOfNonLiveVariables, 112 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-18 11:50:10,557 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE