./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/inv_Newton-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/inv_Newton-1.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 7c5bb845798e00aa3572bfadf1cd4653d0b05182832339d0260ef999baa89392 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 11:27:51,312 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 11:27:51,392 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 11:27:51,398 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 11:27:51,401 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 11:27:51,429 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 11:27:51,430 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 11:27:51,430 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 11:27:51,431 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 11:27:51,432 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 11:27:51,432 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 11:27:51,432 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 11:27:51,433 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 11:27:51,433 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 11:27:51,434 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 11:27:51,434 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 11:27:51,435 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 11:27:51,438 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 11:27:51,438 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 11:27:51,439 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 11:27:51,439 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 11:27:51,439 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 11:27:51,439 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 11:27:51,440 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 11:27:51,440 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 11:27:51,440 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 11:27:51,440 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 11:27:51,440 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 11:27:51,441 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 11:27:51,441 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 11:27:51,441 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 11:27:51,441 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 11:27:51,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:27:51,442 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 11:27:51,442 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 11:27:51,442 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 11:27:51,443 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 11:27:51,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 11:27:51,444 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 11:27:51,445 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 11:27:51,445 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 11:27:51,446 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 11:27:51,446 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c5bb845798e00aa3572bfadf1cd4653d0b05182832339d0260ef999baa89392 [2024-11-18 11:27:51,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 11:27:51,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 11:27:51,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 11:27:51,695 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 11:27:51,696 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 11:27:51,697 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/inv_Newton-1.c [2024-11-18 11:27:53,141 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 11:27:53,316 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 11:27:53,316 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_Newton-1.c [2024-11-18 11:27:53,324 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85f545d24/e627c4679711416f97f2de4032aa9ff4/FLAG1a4da7d3e [2024-11-18 11:27:53,709 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85f545d24/e627c4679711416f97f2de4032aa9ff4 [2024-11-18 11:27:53,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 11:27:53,713 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 11:27:53,718 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 11:27:53,719 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 11:27:53,724 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 11:27:53,725 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:27:53" (1/1) ... [2024-11-18 11:27:53,726 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@529add82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:27:53, skipping insertion in model container [2024-11-18 11:27:53,726 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:27:53" (1/1) ... [2024-11-18 11:27:53,746 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 11:27:53,910 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-benchs/inv_Newton-1.c[598,611] [2024-11-18 11:27:53,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:27:53,943 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 11:27:53,956 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-benchs/inv_Newton-1.c[598,611] [2024-11-18 11:27:53,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:27:53,986 INFO L204 MainTranslator]: Completed translation [2024-11-18 11:27:53,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:27:53 WrapperNode [2024-11-18 11:27:53,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 11:27:53,991 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 11:27:53,991 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 11:27:53,991 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 11:27:53,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:27:53" (1/1) ... [2024-11-18 11:27:54,005 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:27:53" (1/1) ... [2024-11-18 11:27:54,029 INFO L138 Inliner]: procedures = 18, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2024-11-18 11:27:54,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 11:27:54,031 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 11:27:54,032 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 11:27:54,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 11:27:54,043 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:27:53" (1/1) ... [2024-11-18 11:27:54,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:27:53" (1/1) ... [2024-11-18 11:27:54,046 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:27:53" (1/1) ... [2024-11-18 11:27:54,066 INFO L175 MemorySlicer]: Split 7 memory accesses to 3 slices as follows [2, 3, 2]. 43 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, 2, 1]. [2024-11-18 11:27:54,066 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:27:53" (1/1) ... [2024-11-18 11:27:54,067 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:27:53" (1/1) ... [2024-11-18 11:27:54,075 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:27:53" (1/1) ... [2024-11-18 11:27:54,081 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:27:53" (1/1) ... [2024-11-18 11:27:54,082 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:27:53" (1/1) ... [2024-11-18 11:27:54,084 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:27:53" (1/1) ... [2024-11-18 11:27:54,087 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 11:27:54,088 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 11:27:54,088 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 11:27:54,089 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 11:27:54,090 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:27:53" (1/1) ... [2024-11-18 11:27:54,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:27:54,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:27:54,137 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 11:27:54,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 11:27:54,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 11:27:54,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 11:27:54,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 11:27:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-18 11:27:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-18 11:27:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-18 11:27:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-18 11:27:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-18 11:27:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-18 11:27:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-18 11:27:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-18 11:27:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-18 11:27:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-18 11:27:54,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-18 11:27:54,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 11:27:54,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 11:27:54,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-18 11:27:54,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-18 11:27:54,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-18 11:27:54,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-18 11:27:54,320 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 11:27:54,322 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 11:27:54,623 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-18 11:27:54,623 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 11:27:54,637 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 11:27:54,638 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 11:27:54,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:27:54 BoogieIcfgContainer [2024-11-18 11:27:54,638 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 11:27:54,641 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 11:27:54,641 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 11:27:54,646 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 11:27:54,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:27:53" (1/3) ... [2024-11-18 11:27:54,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78376668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:27:54, skipping insertion in model container [2024-11-18 11:27:54,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:27:53" (2/3) ... [2024-11-18 11:27:54,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78376668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:27:54, skipping insertion in model container [2024-11-18 11:27:54,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:27:54" (3/3) ... [2024-11-18 11:27:54,650 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_Newton-1.c [2024-11-18 11:27:54,669 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 11:27:54,669 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 11:27:54,739 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 11:27:54,749 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;@6f7b529d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 11:27:54,749 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 11:27:54,755 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:27:54,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-18 11:27:54,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:27:54,762 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:27:54,763 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:27:54,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:27:54,769 INFO L85 PathProgramCache]: Analyzing trace with hash 515648436, now seen corresponding path program 1 times [2024-11-18 11:27:54,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:27:54,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440524819] [2024-11-18 11:27:54,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:27:54,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:27:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:27:54,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:27:54,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:27:54,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440524819] [2024-11-18 11:27:54,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440524819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:27:54,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:27:54,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 11:27:54,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214312934] [2024-11-18 11:27:54,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:27:54,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 11:27:54,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:27:55,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 11:27:55,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 11:27:55,018 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:27:55,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:27:55,030 INFO L93 Difference]: Finished difference Result 33 states and 42 transitions. [2024-11-18 11:27:55,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 11:27:55,032 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-18 11:27:55,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:27:55,039 INFO L225 Difference]: With dead ends: 33 [2024-11-18 11:27:55,039 INFO L226 Difference]: Without dead ends: 14 [2024-11-18 11:27:55,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 11:27:55,049 INFO L432 NwaCegarLoop]: 20 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, 20 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 11:27:55,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 11:27:55,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-18 11:27:55,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-18 11:27:55,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:27:55,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2024-11-18 11:27:55,085 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2024-11-18 11:27:55,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:27:55,085 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2024-11-18 11:27:55,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:27:55,086 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-11-18 11:27:55,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-18 11:27:55,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:27:55,088 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:27:55,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 11:27:55,090 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:27:55,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:27:55,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1192012722, now seen corresponding path program 1 times [2024-11-18 11:27:55,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:27:55,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577304102] [2024-11-18 11:27:55,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:27:55,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:27:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:27:55,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:27:55,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:27:55,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577304102] [2024-11-18 11:27:55,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577304102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:27:55,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:27:55,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 11:27:55,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199091151] [2024-11-18 11:27:55,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:27:55,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 11:27:55,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:27:55,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 11:27:55,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:27:55,284 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:27:55,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:27:55,302 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2024-11-18 11:27:55,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 11:27:55,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-18 11:27:55,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:27:55,307 INFO L225 Difference]: With dead ends: 20 [2024-11-18 11:27:55,307 INFO L226 Difference]: Without dead ends: 15 [2024-11-18 11:27:55,307 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 [2024-11-18 11:27:55,309 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 11:27:55,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 11:27:55,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-18 11:27:55,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-18 11:27:55,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:27:55,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2024-11-18 11:27:55,316 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2024-11-18 11:27:55,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:27:55,317 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2024-11-18 11:27:55,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:27:55,318 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-18 11:27:55,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-18 11:27:55,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:27:55,318 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:27:55,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 11:27:55,319 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:27:55,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:27:55,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1650656591, now seen corresponding path program 1 times [2024-11-18 11:27:55,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:27:55,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645514359] [2024-11-18 11:27:55,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:27:55,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:27:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 11:27:55,408 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-18 11:27:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 11:27:55,478 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-18 11:27:55,478 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-18 11:27:55,480 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 11:27:55,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 11:27:55,487 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-18 11:27:55,512 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 11:27:55,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:27:55 BoogieIcfgContainer [2024-11-18 11:27:55,518 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 11:27:55,518 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 11:27:55,519 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 11:27:55,519 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 11:27:55,519 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:27:54" (3/4) ... [2024-11-18 11:27:55,522 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-18 11:27:55,524 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 11:27:55,525 INFO L158 Benchmark]: Toolchain (without parser) took 1812.49ms. Allocated memory is still 207.6MB. Free memory was 142.7MB in the beginning and 134.5MB in the end (delta: 8.2MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2024-11-18 11:27:55,525 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 11:27:55,526 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.65ms. Allocated memory is still 207.6MB. Free memory was 142.5MB in the beginning and 129.5MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-18 11:27:55,526 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.27ms. Allocated memory is still 207.6MB. Free memory was 129.5MB in the beginning and 127.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 11:27:55,527 INFO L158 Benchmark]: Boogie Preprocessor took 56.02ms. Allocated memory is still 207.6MB. Free memory was 127.8MB in the beginning and 125.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 11:27:55,528 INFO L158 Benchmark]: RCFGBuilder took 549.99ms. Allocated memory is still 207.6MB. Free memory was 125.5MB in the beginning and 176.4MB in the end (delta: -50.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-18 11:27:55,528 INFO L158 Benchmark]: TraceAbstraction took 876.46ms. Allocated memory is still 207.6MB. Free memory was 175.5MB in the beginning and 134.5MB in the end (delta: 41.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-18 11:27:55,531 INFO L158 Benchmark]: Witness Printer took 6.05ms. Allocated memory is still 207.6MB. Free memory is still 134.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 11:27:55,533 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.65ms. Allocated memory is still 207.6MB. Free memory was 142.5MB in the beginning and 129.5MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.27ms. Allocated memory is still 207.6MB. Free memory was 129.5MB in the beginning and 127.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.02ms. Allocated memory is still 207.6MB. Free memory was 127.8MB in the beginning and 125.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 549.99ms. Allocated memory is still 207.6MB. Free memory was 125.5MB in the beginning and 176.4MB in the end (delta: -50.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 876.46ms. Allocated memory is still 207.6MB. Free memory was 175.5MB in the beginning and 134.5MB in the end (delta: 41.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 6.05ms. Allocated memory is still 207.6MB. Free memory is still 134.5MB. 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: 16]: 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 53, overapproximation of to_real at line 31, overapproximation of someBinaryArithmeticDOUBLEoperation at line 36. Possible FailurePath: [L46] double a,r; [L48] a = __VERIFIER_nondet_double() [L49] CALL assume_abort_if_not(a >= 20. && a <= 30.) [L14] COND FALSE !(!cond) [L49] RET assume_abort_if_not(a >= 20. && a <= 30.) [L51] CALL, EXPR inv(a) [L26] double xi, xsi, temp; [L27] signed int cond, exp; [L28] union double_int A_u, xi_u; [L29] A_u.d = A [L30] EXPR A_u.i [L30] EXPR A_u.i & 0x7FF0000000000000 VAL [xi_u={4:0}] [L30] exp = (signed int) ((A_u.i & 0x7FF0000000000000) >> 52) - 1023 [L31] xi_u.d = 1 [L32] xi_u.i = (((long long)(1023-exp)) << 52) [L33] EXPR xi_u.d [L33] xi = xi_u.d [L34] cond = 1 VAL [cond=1, xi=9214364837600034830] [L35] COND TRUE \read(cond) [L36] xsi = 2*xi-A*xi*xi [L37] temp = xsi-xi [L38] cond = ((temp > 1e-10) || (temp < -1e-10)) [L39] xi = xsi VAL [cond=0, xi=9214364837600034831] [L35] COND FALSE !(\read(cond)) VAL [xi=9214364837600034831] [L41] return xi; [L41] return xi; [L41] return xi; VAL [\result=9214364837600034831] [L51] RET, EXPR inv(a) [L51] r = inv(a) [L53] CALL __VERIFIER_assert(r >= 0 && r <= 0.06) [L16] COND TRUE !(cond) [L16] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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, 46 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 35 mSDtfsCounter, 5 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=18occurred 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, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 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 [2024-11-18 11:27:55,563 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/inv_Newton-1.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 7c5bb845798e00aa3572bfadf1cd4653d0b05182832339d0260ef999baa89392 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 11:27:57,887 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 11:27:57,976 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-18 11:27:57,981 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 11:27:57,981 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 11:27:58,008 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 11:27:58,009 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 11:27:58,009 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 11:27:58,010 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 11:27:58,012 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 11:27:58,012 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 11:27:58,012 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 11:27:58,013 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 11:27:58,013 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 11:27:58,014 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 11:27:58,018 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 11:27:58,018 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 11:27:58,019 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 11:27:58,019 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 11:27:58,019 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 11:27:58,019 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 11:27:58,023 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 11:27:58,024 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 11:27:58,024 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-18 11:27:58,024 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-18 11:27:58,024 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 11:27:58,025 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-18 11:27:58,025 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 11:27:58,025 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 11:27:58,025 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 11:27:58,026 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 11:27:58,026 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 11:27:58,026 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 11:27:58,027 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 11:27:58,027 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:27:58,027 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 11:27:58,028 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 11:27:58,028 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 11:27:58,028 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-18 11:27:58,028 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-18 11:27:58,029 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 11:27:58,029 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 11:27:58,029 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 11:27:58,030 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 11:27:58,030 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c5bb845798e00aa3572bfadf1cd4653d0b05182832339d0260ef999baa89392 [2024-11-18 11:27:58,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 11:27:58,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 11:27:58,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 11:27:58,386 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 11:27:58,386 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 11:27:58,387 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/inv_Newton-1.c [2024-11-18 11:27:59,964 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 11:28:00,161 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 11:28:00,163 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_Newton-1.c [2024-11-18 11:28:00,172 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9907455b/018dd0da96df4382a515b30314605204/FLAG84c638e83 [2024-11-18 11:28:00,188 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9907455b/018dd0da96df4382a515b30314605204 [2024-11-18 11:28:00,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 11:28:00,192 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 11:28:00,196 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 11:28:00,196 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 11:28:00,201 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 11:28:00,201 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:28:00" (1/1) ... [2024-11-18 11:28:00,202 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9ee62b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:00, skipping insertion in model container [2024-11-18 11:28:00,202 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:28:00" (1/1) ... [2024-11-18 11:28:00,223 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 11:28:00,403 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-benchs/inv_Newton-1.c[598,611] [2024-11-18 11:28:00,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:28:00,438 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 11:28:00,451 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-benchs/inv_Newton-1.c[598,611] [2024-11-18 11:28:00,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:28:00,488 INFO L204 MainTranslator]: Completed translation [2024-11-18 11:28:00,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:00 WrapperNode [2024-11-18 11:28:00,489 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 11:28:00,490 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 11:28:00,490 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 11:28:00,490 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 11:28:00,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:00" (1/1) ... [2024-11-18 11:28:00,510 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:00" (1/1) ... [2024-11-18 11:28:00,534 INFO L138 Inliner]: procedures = 21, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 67 [2024-11-18 11:28:00,536 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 11:28:00,536 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 11:28:00,537 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 11:28:00,537 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 11:28:00,548 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:00" (1/1) ... [2024-11-18 11:28:00,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:00" (1/1) ... [2024-11-18 11:28:00,553 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:00" (1/1) ... [2024-11-18 11:28:00,574 INFO L175 MemorySlicer]: Split 7 memory accesses to 3 slices as follows [2, 2, 3]. 43 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]. [2024-11-18 11:28:00,575 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:00" (1/1) ... [2024-11-18 11:28:00,575 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:00" (1/1) ... [2024-11-18 11:28:00,594 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:00" (1/1) ... [2024-11-18 11:28:00,597 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:00" (1/1) ... [2024-11-18 11:28:00,603 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:00" (1/1) ... [2024-11-18 11:28:00,605 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:00" (1/1) ... [2024-11-18 11:28:00,611 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 11:28:00,612 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 11:28:00,612 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 11:28:00,613 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 11:28:00,613 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:00" (1/1) ... [2024-11-18 11:28:00,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:28:00,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:28:00,645 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 11:28:00,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 11:28:00,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 11:28:00,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-18 11:28:00,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-18 11:28:00,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-18 11:28:00,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-18 11:28:00,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-18 11:28:00,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-18 11:28:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-18 11:28:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-18 11:28:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-18 11:28:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-18 11:28:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#0 [2024-11-18 11:28:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#1 [2024-11-18 11:28:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#2 [2024-11-18 11:28:00,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 11:28:00,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 11:28:00,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#0 [2024-11-18 11:28:00,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#1 [2024-11-18 11:28:00,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#2 [2024-11-18 11:28:00,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-18 11:28:00,770 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 11:28:00,772 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 11:28:05,077 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-18 11:28:05,077 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 11:28:05,090 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 11:28:05,090 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 11:28:05,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:28:05 BoogieIcfgContainer [2024-11-18 11:28:05,091 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 11:28:05,093 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 11:28:05,093 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 11:28:05,096 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 11:28:05,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:28:00" (1/3) ... [2024-11-18 11:28:05,098 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@123e14c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:28:05, skipping insertion in model container [2024-11-18 11:28:05,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:00" (2/3) ... [2024-11-18 11:28:05,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@123e14c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:28:05, skipping insertion in model container [2024-11-18 11:28:05,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:28:05" (3/3) ... [2024-11-18 11:28:05,100 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_Newton-1.c [2024-11-18 11:28:05,113 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 11:28:05,113 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 11:28:05,173 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 11:28:05,180 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;@6aaf76bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 11:28:05,181 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 11:28:05,186 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:28:05,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-18 11:28:05,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:28:05,192 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:28:05,192 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:28:05,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:28:05,198 INFO L85 PathProgramCache]: Analyzing trace with hash -590190995, now seen corresponding path program 1 times [2024-11-18 11:28:05,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:28:05,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [770061214] [2024-11-18 11:28:05,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:28:05,209 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:28:05,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:28:05,211 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 11:28:05,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-18 11:28:05,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:28:05,352 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 11:28:05,356 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:28:05,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:28:05,371 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:28:05,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:28:05,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [770061214] [2024-11-18 11:28:05,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [770061214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:28:05,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:28:05,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 11:28:05,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706849952] [2024-11-18 11:28:05,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:28:05,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 11:28:05,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:28:05,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 11:28:05,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 11:28:05,406 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:28:05,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:28:05,419 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2024-11-18 11:28:05,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 11:28:05,421 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-18 11:28:05,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:28:05,428 INFO L225 Difference]: With dead ends: 25 [2024-11-18 11:28:05,428 INFO L226 Difference]: Without dead ends: 10 [2024-11-18 11:28:05,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 11:28:05,436 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 11:28:05,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 11:28:05,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-18 11:28:05,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2024-11-18 11:28:05,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:28:05,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2024-11-18 11:28:05,466 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 9 [2024-11-18 11:28:05,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:28:05,467 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2024-11-18 11:28:05,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:28:05,467 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2024-11-18 11:28:05,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-18 11:28:05,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:28:05,467 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:28:05,474 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 (2)] Forceful destruction successful, exit code 0 [2024-11-18 11:28:05,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:28:05,673 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:28:05,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:28:05,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1184816367, now seen corresponding path program 1 times [2024-11-18 11:28:05,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:28:05,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1902206580] [2024-11-18 11:28:05,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:28:05,675 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:28:05,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:28:05,678 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 11:28:05,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-18 11:28:05,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:28:05,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 11:28:05,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:28:05,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:28:05,854 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:28:05,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:28:05,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1902206580] [2024-11-18 11:28:05,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1902206580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:28:05,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:28:05,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 11:28:05,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900437398] [2024-11-18 11:28:05,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:28:05,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 11:28:05,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:28:05,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 11:28:05,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:28:05,859 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:28:10,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-18 11:28:14,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-18 11:28:18,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-18 11:28:18,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:28:18,366 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2024-11-18 11:28:18,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 11:28:18,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-18 11:28:18,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:28:18,369 INFO L225 Difference]: With dead ends: 16 [2024-11-18 11:28:18,369 INFO L226 Difference]: Without dead ends: 11 [2024-11-18 11:28:18,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:28:18,370 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2024-11-18 11:28:18,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 3 Unknown, 0 Unchecked, 12.5s Time] [2024-11-18 11:28:18,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2024-11-18 11:28:18,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-11-18 11:28:18,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:28:18,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2024-11-18 11:28:18,380 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2024-11-18 11:28:18,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:28:18,380 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2024-11-18 11:28:18,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:28:18,381 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2024-11-18 11:28:18,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-18 11:28:18,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:28:18,381 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:28:18,390 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 (3)] Ended with exit code 0 [2024-11-18 11:28:18,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:28:18,582 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:28:18,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:28:18,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1873743609, now seen corresponding path program 1 times [2024-11-18 11:28:18,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:28:18,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649408479] [2024-11-18 11:28:18,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:28:18,584 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:28:18,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:28:18,585 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 11:28:18,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-18 11:28:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:28:19,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-18 11:28:19,585 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:28:28,734 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 36 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-18 11:28:39,103 WARN L286 SmtUtils]: Spent 7.06s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-18 11:28:49,588 WARN L286 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 36 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-18 11:28:57,198 WARN L286 SmtUtils]: Spent 7.61s on a formula simplification. DAG size of input: 30 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-18 11:29:02,392 WARN L286 SmtUtils]: Spent 5.17s on a formula simplification that was a NOOP. DAG size: 36 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)