./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0720.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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/double_req_bl_0720.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 4e4c2067f061fded3c73bef3417c7b43200911ac0a27c4167dda41245285899f --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 12:29:02,204 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 12:29:02,259 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 12:29:02,262 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 12:29:02,265 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 12:29:02,291 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 12:29:02,292 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 12:29:02,292 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 12:29:02,293 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 12:29:02,296 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 12:29:02,296 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 12:29:02,296 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 12:29:02,297 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 12:29:02,297 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 12:29:02,297 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 12:29:02,297 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 12:29:02,297 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 12:29:02,299 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 12:29:02,299 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 12:29:02,299 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 12:29:02,299 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 12:29:02,300 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 12:29:02,300 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 12:29:02,300 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 12:29:02,300 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 12:29:02,300 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 12:29:02,301 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 12:29:02,301 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 12:29:02,301 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 12:29:02,301 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 12:29:02,301 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 12:29:02,301 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 12:29:02,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:29:02,302 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 12:29:02,302 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 12:29:02,302 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 12:29:02,302 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 12:29:02,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 12:29:02,303 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 12:29:02,303 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 12:29:02,303 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 12:29:02,304 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 12:29:02,304 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e4c2067f061fded3c73bef3417c7b43200911ac0a27c4167dda41245285899f [2024-11-08 12:29:02,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 12:29:02,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 12:29:02,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 12:29:02,598 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 12:29:02,598 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 12:29:02,600 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2024-11-08 12:29:03,906 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 12:29:04,079 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 12:29:04,080 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2024-11-08 12:29:04,087 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/002852e1c/4353eceacc5d4354b62c1b6328f1e638/FLAGec83c0a66 [2024-11-08 12:29:04,099 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/002852e1c/4353eceacc5d4354b62c1b6328f1e638 [2024-11-08 12:29:04,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 12:29:04,103 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 12:29:04,105 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 12:29:04,105 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 12:29:04,111 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 12:29:04,112 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:29:04" (1/1) ... [2024-11-08 12:29:04,114 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68eaf2c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:04, skipping insertion in model container [2024-11-08 12:29:04,114 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:29:04" (1/1) ... [2024-11-08 12:29:04,143 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 12:29:04,330 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/double_req_bl_0720.c[3072,3085] [2024-11-08 12:29:04,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:29:04,340 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 12:29:04,371 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/double_req_bl_0720.c[3072,3085] [2024-11-08 12:29:04,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:29:04,391 INFO L204 MainTranslator]: Completed translation [2024-11-08 12:29:04,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:04 WrapperNode [2024-11-08 12:29:04,392 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 12:29:04,393 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 12:29:04,393 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 12:29:04,393 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 12:29:04,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:04" (1/1) ... [2024-11-08 12:29:04,406 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:04" (1/1) ... [2024-11-08 12:29:04,429 INFO L138 Inliner]: procedures = 17, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 307 [2024-11-08 12:29:04,430 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 12:29:04,430 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 12:29:04,430 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 12:29:04,431 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 12:29:04,445 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:04" (1/1) ... [2024-11-08 12:29:04,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:04" (1/1) ... [2024-11-08 12:29:04,448 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:04" (1/1) ... [2024-11-08 12:29:04,467 INFO L175 MemorySlicer]: Split 8 memory accesses to 3 slices as follows [2, 3, 3]. 38 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 3 writes are split as follows [0, 1, 2]. [2024-11-08 12:29:04,467 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:04" (1/1) ... [2024-11-08 12:29:04,467 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:04" (1/1) ... [2024-11-08 12:29:04,475 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:04" (1/1) ... [2024-11-08 12:29:04,479 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:04" (1/1) ... [2024-11-08 12:29:04,481 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:04" (1/1) ... [2024-11-08 12:29:04,482 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:04" (1/1) ... [2024-11-08 12:29:04,486 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 12:29:04,487 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 12:29:04,487 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 12:29:04,487 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 12:29:04,488 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:04" (1/1) ... [2024-11-08 12:29:04,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:29:04,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 12:29:04,525 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) [2024-11-08 12:29:04,528 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 [2024-11-08 12:29:04,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 12:29:04,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 12:29:04,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 12:29:04,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 12:29:04,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 12:29:04,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-08 12:29:04,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-08 12:29:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-08 12:29:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 12:29:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 12:29:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 12:29:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-08 12:29:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-08 12:29:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-08 12:29:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 12:29:04,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 12:29:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 12:29:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 12:29:04,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 12:29:04,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 12:29:04,691 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 12:29:04,693 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 12:29:05,134 INFO L? ?]: Removed 58 outVars from TransFormulas that were not future-live. [2024-11-08 12:29:05,135 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 12:29:05,146 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 12:29:05,146 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-08 12:29:05,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:29:05 BoogieIcfgContainer [2024-11-08 12:29:05,147 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 12:29:05,149 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 12:29:05,149 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 12:29:05,151 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 12:29:05,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 12:29:04" (1/3) ... [2024-11-08 12:29:05,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34bae043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:29:05, skipping insertion in model container [2024-11-08 12:29:05,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:04" (2/3) ... [2024-11-08 12:29:05,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34bae043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:29:05, skipping insertion in model container [2024-11-08 12:29:05,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:29:05" (3/3) ... [2024-11-08 12:29:05,153 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0720.c [2024-11-08 12:29:05,167 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 12:29:05,167 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 12:29:05,217 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 12:29:05,223 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;@6bb3d94b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:29:05,223 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 12:29:05,227 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 106 states have (on average 1.5943396226415094) internal successors, (169), 107 states have internal predecessors, (169), 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) [2024-11-08 12:29:05,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 12:29:05,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:29:05,232 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:29:05,232 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:29:05,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:29:05,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1827667079, now seen corresponding path program 1 times [2024-11-08 12:29:05,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:29:05,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147047830] [2024-11-08 12:29:05,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:29:05,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:29:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:29:05,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:29:05,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 12:29:05,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147047830] [2024-11-08 12:29:05,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147047830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:29:05,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:29:05,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 12:29:05,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511297612] [2024-11-08 12:29:05,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:29:05,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 12:29:05,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 12:29:05,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 12:29:05,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 12:29:05,404 INFO L87 Difference]: Start difference. First operand has 108 states, 106 states have (on average 1.5943396226415094) internal successors, (169), 107 states have internal predecessors, (169), 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) [2024-11-08 12:29:05,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:29:05,430 INFO L93 Difference]: Finished difference Result 214 states and 336 transitions. [2024-11-08 12:29:05,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:29:05,433 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 [2024-11-08 12:29:05,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:29:05,441 INFO L225 Difference]: With dead ends: 214 [2024-11-08 12:29:05,442 INFO L226 Difference]: Without dead ends: 105 [2024-11-08 12:29:05,445 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 [2024-11-08 12:29:05,449 INFO L432 NwaCegarLoop]: 159 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, 159 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 [2024-11-08 12:29:05,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 12:29:05,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-08 12:29:05,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-11-08 12:29:05,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.5) internal successors, (156), 104 states have internal predecessors, (156), 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) [2024-11-08 12:29:05,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 156 transitions. [2024-11-08 12:29:05,484 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 156 transitions. Word has length 9 [2024-11-08 12:29:05,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:29:05,484 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 156 transitions. [2024-11-08 12:29:05,485 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) [2024-11-08 12:29:05,485 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 156 transitions. [2024-11-08 12:29:05,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-08 12:29:05,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:29:05,485 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:29:05,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 12:29:05,486 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:29:05,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:29:05,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1560683734, now seen corresponding path program 1 times [2024-11-08 12:29:05,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:29:05,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328796986] [2024-11-08 12:29:05,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:29:05,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:29:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:29:05,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:29:05,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 12:29:05,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328796986] [2024-11-08 12:29:05,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328796986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:29:05,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:29:05,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 12:29:05,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340243935] [2024-11-08 12:29:05,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:29:05,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 12:29:05,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 12:29:05,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 12:29:05,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 12:29:05,590 INFO L87 Difference]: Start difference. First operand 105 states and 156 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2024-11-08 12:29:05,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:29:05,610 INFO L93 Difference]: Finished difference Result 111 states and 162 transitions. [2024-11-08 12:29:05,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:29:05,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 [2024-11-08 12:29:05,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:29:05,612 INFO L225 Difference]: With dead ends: 111 [2024-11-08 12:29:05,612 INFO L226 Difference]: Without dead ends: 106 [2024-11-08 12:29:05,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 12:29:05,614 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 12:29:05,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 304 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 12:29:05,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-08 12:29:05,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-11-08 12:29:05,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 1.4952380952380953) internal successors, (157), 105 states have internal predecessors, (157), 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) [2024-11-08 12:29:05,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 157 transitions. [2024-11-08 12:29:05,621 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 157 transitions. Word has length 10 [2024-11-08 12:29:05,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:29:05,621 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 157 transitions. [2024-11-08 12:29:05,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2024-11-08 12:29:05,622 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 157 transitions. [2024-11-08 12:29:05,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 12:29:05,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:29:05,622 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:29:05,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 12:29:05,623 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:29:05,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:29:05,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1919108714, now seen corresponding path program 1 times [2024-11-08 12:29:05,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:29:05,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651058159] [2024-11-08 12:29:05,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:29:05,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:29:05,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 12:29:05,661 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 12:29:05,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 12:29:05,718 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 12:29:05,719 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 12:29:05,721 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 12:29:05,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 12:29:05,726 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-08 12:29:05,742 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 12:29:05,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 12:29:05 BoogieIcfgContainer [2024-11-08 12:29:05,748 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 12:29:05,749 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 12:29:05,749 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 12:29:05,749 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 12:29:05,750 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:29:05" (3/4) ... [2024-11-08 12:29:05,752 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 12:29:05,756 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 12:29:05,757 INFO L158 Benchmark]: Toolchain (without parser) took 1654.24ms. Allocated memory is still 151.0MB. Free memory was 106.3MB in the beginning and 57.0MB in the end (delta: 49.3MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. [2024-11-08 12:29:05,757 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:29:05,757 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.20ms. Allocated memory is still 151.0MB. Free memory was 105.9MB in the beginning and 91.1MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 12:29:05,758 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.89ms. Allocated memory is still 151.0MB. Free memory was 91.1MB in the beginning and 87.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:29:05,758 INFO L158 Benchmark]: Boogie Preprocessor took 56.03ms. Allocated memory is still 151.0MB. Free memory was 87.9MB in the beginning and 84.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 12:29:05,758 INFO L158 Benchmark]: RCFGBuilder took 659.79ms. Allocated memory is still 151.0MB. Free memory was 84.5MB in the beginning and 96.8MB in the end (delta: -12.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 12:29:05,758 INFO L158 Benchmark]: TraceAbstraction took 599.94ms. Allocated memory is still 151.0MB. Free memory was 95.6MB in the beginning and 57.0MB in the end (delta: 38.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-11-08 12:29:05,759 INFO L158 Benchmark]: Witness Printer took 7.21ms. Allocated memory is still 151.0MB. Free memory is still 57.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:29:05,760 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.20ms. Allocated memory is still 151.0MB. Free memory was 105.9MB in the beginning and 91.1MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.89ms. Allocated memory is still 151.0MB. Free memory was 91.1MB in the beginning and 87.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.03ms. Allocated memory is still 151.0MB. Free memory was 87.9MB in the beginning and 84.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 659.79ms. Allocated memory is still 151.0MB. Free memory was 84.5MB in the beginning and 96.8MB in the end (delta: -12.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 599.94ms. Allocated memory is still 151.0MB. Free memory was 95.6MB in the beginning and 57.0MB in the end (delta: 38.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 7.21ms. Allocated memory is still 151.0MB. Free memory is still 57.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 147]: 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 someBinaryDOUBLEComparisonOperation at line 20, overapproximation of someBinaryArithmeticDOUBLEoperation at line 38. Possible FailurePath: [L22] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L141] double x = 0.0 / 0.0; [L143] CALL, EXPR __ieee754_sqrt(x) [L25] double z; [L26] __int32_t sign = 0x80000000; [L27] __uint32_t r, t1, s1, ix1, q1; [L28] __int32_t ix0, s0, q, m, t, i; VAL [one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6441402378] [L31] ieee_double_shape_type ew_u; [L32] ew_u.value = (x) [L33] EXPR ew_u.parts.msw [L33] (ix0) = ew_u.parts.msw [L34] EXPR ew_u.parts.lsw [L34] (ix1) = ew_u.parts.lsw [L37] EXPR ix0 & 0x7ff00000 VAL [ix0=2146435072, ix1=6441402369, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6441402378] [L37] COND TRUE (ix0 & 0x7ff00000) == 0x7ff00000 [L38] return x * x + x; VAL [ix0=2146435072, ix1=6441402369, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6441402378] [L143] RET, EXPR __ieee754_sqrt(x) [L143] double res = __ieee754_sqrt(x); [L146] CALL, EXPR isnan_double(res) [L20] return x != x; VAL [\result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L146] RET, EXPR isnan_double(res) [L146] COND TRUE !isnan_double(res) [L147] reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, 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, 463 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 149 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 314 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2024-11-08 12:29:05,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0720.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 4e4c2067f061fded3c73bef3417c7b43200911ac0a27c4167dda41245285899f --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 12:29:07,772 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 12:29:07,823 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 12:29:07,827 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 12:29:07,827 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 12:29:07,851 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 12:29:07,852 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 12:29:07,852 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 12:29:07,854 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 12:29:07,854 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 12:29:07,855 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 12:29:07,855 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 12:29:07,855 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 12:29:07,855 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 12:29:07,856 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 12:29:07,856 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 12:29:07,857 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 12:29:07,857 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 12:29:07,857 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 12:29:07,857 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 12:29:07,858 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 12:29:07,858 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 12:29:07,858 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 12:29:07,858 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 12:29:07,859 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 12:29:07,859 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 12:29:07,860 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 12:29:07,860 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 12:29:07,862 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 12:29:07,862 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 12:29:07,862 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 12:29:07,862 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 12:29:07,862 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 12:29:07,863 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 12:29:07,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:29:07,863 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 12:29:07,863 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 12:29:07,863 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 12:29:07,863 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-08 12:29:07,863 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 12:29:07,864 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 12:29:07,864 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 12:29:07,864 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 12:29:07,864 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 12:29:07,865 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e4c2067f061fded3c73bef3417c7b43200911ac0a27c4167dda41245285899f [2024-11-08 12:29:08,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 12:29:08,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 12:29:08,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 12:29:08,179 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 12:29:08,179 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 12:29:08,180 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2024-11-08 12:29:09,625 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 12:29:09,814 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 12:29:09,815 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2024-11-08 12:29:09,824 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caac8f7bb/efeeb78fd65a461c81a1fb6e77dd234a/FLAG3969e6f88 [2024-11-08 12:29:10,199 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caac8f7bb/efeeb78fd65a461c81a1fb6e77dd234a [2024-11-08 12:29:10,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 12:29:10,204 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 12:29:10,206 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 12:29:10,206 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 12:29:10,210 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 12:29:10,211 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:29:10" (1/1) ... [2024-11-08 12:29:10,212 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16990314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:10, skipping insertion in model container [2024-11-08 12:29:10,212 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:29:10" (1/1) ... [2024-11-08 12:29:10,238 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 12:29:10,441 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/double_req_bl_0720.c[3072,3085] [2024-11-08 12:29:10,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:29:10,465 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 12:29:10,492 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/double_req_bl_0720.c[3072,3085] [2024-11-08 12:29:10,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:29:10,512 INFO L204 MainTranslator]: Completed translation [2024-11-08 12:29:10,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:10 WrapperNode [2024-11-08 12:29:10,513 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 12:29:10,514 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 12:29:10,514 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 12:29:10,514 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 12:29:10,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:10" (1/1) ... [2024-11-08 12:29:10,533 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:10" (1/1) ... [2024-11-08 12:29:10,557 INFO L138 Inliner]: procedures = 20, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 164 [2024-11-08 12:29:10,557 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 12:29:10,560 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 12:29:10,560 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 12:29:10,560 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 12:29:10,569 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:10" (1/1) ... [2024-11-08 12:29:10,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:10" (1/1) ... [2024-11-08 12:29:10,577 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:10" (1/1) ... [2024-11-08 12:29:10,607 INFO L175 MemorySlicer]: Split 8 memory accesses to 3 slices as follows [2, 3, 3]. 38 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 3 writes are split as follows [0, 1, 2]. [2024-11-08 12:29:10,607 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:10" (1/1) ... [2024-11-08 12:29:10,607 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:10" (1/1) ... [2024-11-08 12:29:10,623 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:10" (1/1) ... [2024-11-08 12:29:10,629 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:10" (1/1) ... [2024-11-08 12:29:10,635 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:10" (1/1) ... [2024-11-08 12:29:10,637 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:10" (1/1) ... [2024-11-08 12:29:10,644 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 12:29:10,645 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 12:29:10,645 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 12:29:10,646 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 12:29:10,646 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:10" (1/1) ... [2024-11-08 12:29:10,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:29:10,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 12:29:10,684 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) [2024-11-08 12:29:10,691 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 [2024-11-08 12:29:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 12:29:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-08 12:29:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-08 12:29:10,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-08 12:29:10,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-08 12:29:10,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-08 12:29:10,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-08 12:29:10,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 12:29:10,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 12:29:10,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-08 12:29:10,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 12:29:10,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 12:29:10,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 12:29:10,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-08 12:29:10,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 12:29:10,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 12:29:10,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-08 12:29:10,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-08 12:29:10,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-08 12:29:10,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 12:29:10,818 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 12:29:10,820 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 12:29:17,140 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-11-08 12:29:17,141 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 12:29:17,151 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 12:29:17,151 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-08 12:29:17,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:29:17 BoogieIcfgContainer [2024-11-08 12:29:17,152 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 12:29:17,153 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 12:29:17,154 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 12:29:17,156 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 12:29:17,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 12:29:10" (1/3) ... [2024-11-08 12:29:17,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36038b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:29:17, skipping insertion in model container [2024-11-08 12:29:17,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:29:10" (2/3) ... [2024-11-08 12:29:17,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36038b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:29:17, skipping insertion in model container [2024-11-08 12:29:17,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:29:17" (3/3) ... [2024-11-08 12:29:17,158 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0720.c [2024-11-08 12:29:17,171 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 12:29:17,172 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 12:29:17,222 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 12:29:17,230 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;@35ff10fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:29:17,233 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 12:29:17,237 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 47 states have (on average 1.6382978723404256) internal successors, (77), 48 states have internal predecessors, (77), 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) [2024-11-08 12:29:17,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 12:29:17,243 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:29:17,243 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:29:17,243 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:29:17,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:29:17,257 INFO L85 PathProgramCache]: Analyzing trace with hash 361067274, now seen corresponding path program 1 times [2024-11-08 12:29:17,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 12:29:17,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1991359640] [2024-11-08 12:29:17,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:29:17,267 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 [2024-11-08 12:29:17,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 12:29:17,270 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) [2024-11-08 12:29:17,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-08 12:29:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:29:17,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 12:29:17,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:29:17,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:29:17,593 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:29:17,593 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 12:29:17,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1991359640] [2024-11-08 12:29:17,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1991359640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:29:17,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:29:17,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 12:29:17,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945538860] [2024-11-08 12:29:17,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:29:17,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 12:29:17,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 12:29:17,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 12:29:17,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 12:29:17,616 INFO L87 Difference]: Start difference. First operand has 49 states, 47 states have (on average 1.6382978723404256) internal successors, (77), 48 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 12:29:17,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:29:17,630 INFO L93 Difference]: Finished difference Result 96 states and 152 transitions. [2024-11-08 12:29:17,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:29:17,632 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-08 12:29:17,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:29:17,639 INFO L225 Difference]: With dead ends: 96 [2024-11-08 12:29:17,639 INFO L226 Difference]: Without dead ends: 46 [2024-11-08 12:29:17,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 12:29:17,647 INFO L432 NwaCegarLoop]: 68 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, 68 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 [2024-11-08 12:29:17,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 12:29:17,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-08 12:29:17,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-08 12:29:17,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 45 states have internal predecessors, (65), 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) [2024-11-08 12:29:17,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 65 transitions. [2024-11-08 12:29:17,684 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 65 transitions. Word has length 8 [2024-11-08 12:29:17,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:29:17,684 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 65 transitions. [2024-11-08 12:29:17,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 12:29:17,685 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 65 transitions. [2024-11-08 12:29:17,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 12:29:17,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:29:17,687 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:29:17,700 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 [2024-11-08 12:29:17,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 12:29:17,888 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:29:17,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:29:17,889 INFO L85 PathProgramCache]: Analyzing trace with hash 331821581, now seen corresponding path program 1 times [2024-11-08 12:29:17,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 12:29:17,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1002709197] [2024-11-08 12:29:17,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:29:17,890 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 [2024-11-08 12:29:17,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 12:29:17,894 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 12:29:17,895 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 [2024-11-08 12:29:18,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:29:18,176 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 12:29:18,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:29:18,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:29:18,885 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:29:18,885 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 12:29:18,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1002709197] [2024-11-08 12:29:18,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1002709197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:29:18,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:29:18,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 12:29:18,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199255056] [2024-11-08 12:29:18,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:29:18,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 12:29:18,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 12:29:18,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 12:29:18,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 12:29:18,888 INFO L87 Difference]: Start difference. First operand 46 states and 65 transitions. Second operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 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) [2024-11-08 12:29:21,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:29:21,551 INFO L93 Difference]: Finished difference Result 51 states and 69 transitions. [2024-11-08 12:29:21,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 12:29:21,552 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 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 [2024-11-08 12:29:21,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:29:21,553 INFO L225 Difference]: With dead ends: 51 [2024-11-08 12:29:21,553 INFO L226 Difference]: Without dead ends: 46 [2024-11-08 12:29:21,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-08 12:29:21,554 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 117 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-08 12:29:21,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 226 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-08 12:29:21,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-08 12:29:21,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-08 12:29:21,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.3777777777777778) internal successors, (62), 45 states have internal predecessors, (62), 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) [2024-11-08 12:29:21,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 62 transitions. [2024-11-08 12:29:21,561 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 62 transitions. Word has length 9 [2024-11-08 12:29:21,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:29:21,561 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 62 transitions. [2024-11-08 12:29:21,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 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) [2024-11-08 12:29:21,564 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 62 transitions. [2024-11-08 12:29:21,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 12:29:21,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:29:21,565 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:29:21,576 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 [2024-11-08 12:29:21,765 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 [2024-11-08 12:29:21,766 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:29:21,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:29:21,768 INFO L85 PathProgramCache]: Analyzing trace with hash -677928537, now seen corresponding path program 1 times [2024-11-08 12:29:21,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 12:29:21,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092920440] [2024-11-08 12:29:21,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:29:21,769 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 [2024-11-08 12:29:21,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 12:29:21,779 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) [2024-11-08 12:29:21,780 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 [2024-11-08 12:29:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:29:21,862 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 12:29:21,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:29:22,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:29:22,220 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:29:22,220 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 12:29:22,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092920440] [2024-11-08 12:29:22,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092920440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:29:22,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:29:22,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 12:29:22,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193910403] [2024-11-08 12:29:22,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:29:22,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 12:29:22,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 12:29:22,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 12:29:22,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 12:29:22,222 INFO L87 Difference]: Start difference. First operand 46 states and 62 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2024-11-08 12:29:22,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:29:22,381 INFO L93 Difference]: Finished difference Result 46 states and 62 transitions. [2024-11-08 12:29:22,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 12:29:22,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 25 [2024-11-08 12:29:22,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:29:22,382 INFO L225 Difference]: With dead ends: 46 [2024-11-08 12:29:22,382 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 12:29:22,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 12:29:22,387 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 12:29:22,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 12:29:22,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 12:29:22,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 12:29:22,389 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) [2024-11-08 12:29:22,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 12:29:22,398 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2024-11-08 12:29:22,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:29:22,399 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 12:29:22,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2024-11-08 12:29:22,399 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 12:29:22,399 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 12:29:22,401 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 12:29:22,407 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 [2024-11-08 12:29:22,602 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 [2024-11-08 12:29:22,609 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-08 12:29:22,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 12:29:22,823 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 12:29:22,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 12:29:22 BoogieIcfgContainer [2024-11-08 12:29:22,845 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 12:29:22,846 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 12:29:22,846 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 12:29:22,846 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 12:29:22,847 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:29:17" (3/4) ... [2024-11-08 12:29:22,853 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 12:29:22,862 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-08 12:29:22,863 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-08 12:29:22,864 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 12:29:22,864 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 12:29:22,960 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-08 12:29:22,962 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-08 12:29:22,963 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 12:29:22,963 INFO L158 Benchmark]: Toolchain (without parser) took 12759.49ms. Allocated memory was 71.3MB in the beginning and 96.5MB in the end (delta: 25.2MB). Free memory was 51.2MB in the beginning and 64.9MB in the end (delta: -13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 12:29:22,964 INFO L158 Benchmark]: CDTParser took 1.05ms. Allocated memory is still 71.3MB. Free memory was 47.7MB in the beginning and 47.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:29:22,964 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.26ms. Allocated memory is still 71.3MB. Free memory was 51.0MB in the beginning and 35.2MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 12:29:22,964 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.30ms. Allocated memory is still 71.3MB. Free memory was 35.2MB in the beginning and 33.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:29:22,965 INFO L158 Benchmark]: Boogie Preprocessor took 84.95ms. Allocated memory was 71.3MB in the beginning and 96.5MB in the end (delta: 25.2MB). Free memory was 33.0MB in the beginning and 74.8MB in the end (delta: -41.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 12:29:22,965 INFO L158 Benchmark]: RCFGBuilder took 6506.39ms. Allocated memory is still 96.5MB. Free memory was 74.4MB in the beginning and 54.0MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 12:29:22,965 INFO L158 Benchmark]: TraceAbstraction took 5691.68ms. Allocated memory is still 96.5MB. Free memory was 53.1MB in the beginning and 70.4MB in the end (delta: -17.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:29:22,965 INFO L158 Benchmark]: Witness Printer took 116.88ms. Allocated memory is still 96.5MB. Free memory was 70.4MB in the beginning and 64.9MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 12:29:22,966 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.05ms. Allocated memory is still 71.3MB. Free memory was 47.7MB in the beginning and 47.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.26ms. Allocated memory is still 71.3MB. Free memory was 51.0MB in the beginning and 35.2MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.30ms. Allocated memory is still 71.3MB. Free memory was 35.2MB in the beginning and 33.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.95ms. Allocated memory was 71.3MB in the beginning and 96.5MB in the end (delta: 25.2MB). Free memory was 33.0MB in the beginning and 74.8MB in the end (delta: -41.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 6506.39ms. Allocated memory is still 96.5MB. Free memory was 74.4MB in the beginning and 54.0MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5691.68ms. Allocated memory is still 96.5MB. Free memory was 53.1MB in the beginning and 70.4MB in the end (delta: -17.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 116.88ms. Allocated memory is still 96.5MB. Free memory was 70.4MB in the beginning and 64.9MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. 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: 147]: 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, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 119 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 119 mSDsluCounter, 299 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 171 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 128 mSDtfsCounter, 45 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 3 QuantifiedInterpolants, 129 SizeOfPredicates, 5 NumberOfNonLiveVariables, 153 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: 30]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-08 12:29:23,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE