./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-36.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-36.i -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 a35769e60951934d6bdd49ba63ee6bf96f7f37fd27fc4fb212883b40db8837ed --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 00:48:30,915 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:48:30,974 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 00:48:30,977 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:48:30,978 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 00:48:31,002 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:48:31,003 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 00:48:31,004 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 00:48:31,004 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 00:48:31,005 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 00:48:31,005 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:48:31,006 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 00:48:31,006 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:48:31,006 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:48:31,008 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 00:48:31,009 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:48:31,009 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:48:31,009 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:48:31,009 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:48:31,010 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:48:31,010 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:48:31,010 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:48:31,011 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:48:31,014 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:48:31,014 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:48:31,014 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:48:31,015 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:48:31,015 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:48:31,015 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:48:31,015 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 00:48:31,015 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 00:48:31,015 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 00:48:31,016 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 00:48:31,016 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:48:31,016 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:48:31,016 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:48:31,016 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 00:48:31,016 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:48:31,017 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 00:48:31,017 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 00:48:31,017 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 00:48:31,019 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 00:48:31,019 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a35769e60951934d6bdd49ba63ee6bf96f7f37fd27fc4fb212883b40db8837ed [2024-11-09 00:48:31,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:48:31,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:48:31,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:48:31,236 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:48:31,236 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:48:31,237 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-36.i [2024-11-09 00:48:32,578 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:48:32,749 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:48:32,750 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-36.i [2024-11-09 00:48:32,757 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d18209ed/32d7b3fb2eca43f8be543353ae1d838c/FLAG582e75269 [2024-11-09 00:48:32,771 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d18209ed/32d7b3fb2eca43f8be543353ae1d838c [2024-11-09 00:48:32,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:48:32,777 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:48:32,778 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:48:32,778 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:48:32,782 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:48:32,783 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:48:32" (1/1) ... [2024-11-09 00:48:32,785 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5140119b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:32, skipping insertion in model container [2024-11-09 00:48:32,785 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:48:32" (1/1) ... [2024-11-09 00:48:32,807 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:48:32,980 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/hardness-nfm22/hardness_operatoramount_amount25_file-36.i[915,928] [2024-11-09 00:48:33,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:48:33,036 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:48:33,061 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/hardness-nfm22/hardness_operatoramount_amount25_file-36.i[915,928] [2024-11-09 00:48:33,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:48:33,100 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:48:33,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:33 WrapperNode [2024-11-09 00:48:33,100 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:48:33,101 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:48:33,102 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:48:33,102 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:48:33,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:33" (1/1) ... [2024-11-09 00:48:33,116 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:33" (1/1) ... [2024-11-09 00:48:33,141 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 84 [2024-11-09 00:48:33,146 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:48:33,146 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:48:33,146 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:48:33,146 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:48:33,155 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:33" (1/1) ... [2024-11-09 00:48:33,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:33" (1/1) ... [2024-11-09 00:48:33,162 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:33" (1/1) ... [2024-11-09 00:48:33,174 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 00:48:33,174 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:33" (1/1) ... [2024-11-09 00:48:33,174 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:33" (1/1) ... [2024-11-09 00:48:33,178 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:33" (1/1) ... [2024-11-09 00:48:33,181 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:33" (1/1) ... [2024-11-09 00:48:33,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:33" (1/1) ... [2024-11-09 00:48:33,182 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:33" (1/1) ... [2024-11-09 00:48:33,184 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:48:33,185 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:48:33,185 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:48:33,185 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:48:33,185 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:33" (1/1) ... [2024-11-09 00:48:33,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 00:48:33,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 00:48:33,226 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) [2024-11-09 00:48:33,229 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 [2024-11-09 00:48:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:48:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 00:48:33,270 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 00:48:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 00:48:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:48:33,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:48:33,332 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:48:33,335 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:48:33,539 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-09 00:48:33,539 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:48:33,549 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:48:33,549 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 00:48:33,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:48:33 BoogieIcfgContainer [2024-11-09 00:48:33,549 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:48:33,551 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 00:48:33,551 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 00:48:33,554 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 00:48:33,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:48:32" (1/3) ... [2024-11-09 00:48:33,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29c5d8f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:48:33, skipping insertion in model container [2024-11-09 00:48:33,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:33" (2/3) ... [2024-11-09 00:48:33,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29c5d8f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:48:33, skipping insertion in model container [2024-11-09 00:48:33,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:48:33" (3/3) ... [2024-11-09 00:48:33,556 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-36.i [2024-11-09 00:48:33,569 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 00:48:33,569 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 00:48:33,616 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 00:48:33,622 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;@7c2fd135, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 00:48:33,622 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 00:48:33,626 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 00:48:33,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 00:48:33,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 00:48:33,633 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 00:48:33,633 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 00:48:33,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:48:33,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1276548251, now seen corresponding path program 1 times [2024-11-09 00:48:33,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 00:48:33,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244460466] [2024-11-09 00:48:33,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 00:48:33,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:48:33,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:48:33,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 00:48:33,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:48:33,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 00:48:33,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:48:33,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-09 00:48:33,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:48:33,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-09 00:48:33,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:48:33,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-09 00:48:33,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:48:33,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-09 00:48:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:48:33,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-09 00:48:33,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:48:33,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-09 00:48:33,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:48:33,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-09 00:48:33,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:48:33,834 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-09 00:48:33,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 00:48:33,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244460466] [2024-11-09 00:48:33,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244460466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 00:48:33,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 00:48:33,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 00:48:33,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077033452] [2024-11-09 00:48:33,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 00:48:33,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 00:48:33,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 00:48:33,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 00:48:33,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 00:48:33,863 INFO L87 Difference]: Start difference. First operand has 40 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 00:48:33,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 00:48:33,878 INFO L93 Difference]: Finished difference Result 73 states and 115 transitions. [2024-11-09 00:48:33,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 00:48:33,883 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 64 [2024-11-09 00:48:33,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 00:48:33,889 INFO L225 Difference]: With dead ends: 73 [2024-11-09 00:48:33,889 INFO L226 Difference]: Without dead ends: 36 [2024-11-09 00:48:33,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 00:48:33,897 INFO L432 NwaCegarLoop]: 49 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, 49 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 [2024-11-09 00:48:33,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 00:48:33,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-09 00:48:33,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-09 00:48:33,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 00:48:33,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 49 transitions. [2024-11-09 00:48:33,941 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 49 transitions. Word has length 64 [2024-11-09 00:48:33,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 00:48:33,941 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 49 transitions. [2024-11-09 00:48:33,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 00:48:33,942 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 49 transitions. [2024-11-09 00:48:33,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 00:48:33,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 00:48:33,944 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 00:48:33,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 00:48:33,944 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 00:48:33,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:48:33,945 INFO L85 PathProgramCache]: Analyzing trace with hash 485064543, now seen corresponding path program 1 times [2024-11-09 00:48:33,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 00:48:33,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505240807] [2024-11-09 00:48:33,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 00:48:33,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:48:34,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:48:34,106 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:48:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:48:34,172 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 00:48:34,173 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 00:48:34,179 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 00:48:34,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 00:48:34,185 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 00:48:34,230 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 00:48:34,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 12:48:34 BoogieIcfgContainer [2024-11-09 00:48:34,233 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 00:48:34,234 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:48:34,234 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:48:34,234 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:48:34,234 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:48:33" (3/4) ... [2024-11-09 00:48:34,236 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 00:48:34,237 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:48:34,238 INFO L158 Benchmark]: Toolchain (without parser) took 1461.05ms. Allocated memory was 161.5MB in the beginning and 230.7MB in the end (delta: 69.2MB). Free memory was 89.4MB in the beginning and 188.8MB in the end (delta: -99.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:48:34,238 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 161.5MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:48:34,239 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.67ms. Allocated memory is still 161.5MB. Free memory was 89.2MB in the beginning and 130.9MB in the end (delta: -41.7MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2024-11-09 00:48:34,239 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.58ms. Allocated memory is still 161.5MB. Free memory was 130.9MB in the beginning and 128.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:48:34,240 INFO L158 Benchmark]: Boogie Preprocessor took 37.83ms. Allocated memory is still 161.5MB. Free memory was 128.9MB in the beginning and 126.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:48:34,240 INFO L158 Benchmark]: RCFGBuilder took 364.86ms. Allocated memory is still 161.5MB. Free memory was 126.8MB in the beginning and 112.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 00:48:34,240 INFO L158 Benchmark]: TraceAbstraction took 681.86ms. Allocated memory was 161.5MB in the beginning and 230.7MB in the end (delta: 69.2MB). Free memory was 112.1MB in the beginning and 188.8MB in the end (delta: -76.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:48:34,241 INFO L158 Benchmark]: Witness Printer took 3.98ms. Allocated memory is still 230.7MB. Free memory is still 188.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:48:34,242 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 161.5MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.67ms. Allocated memory is still 161.5MB. Free memory was 89.2MB in the beginning and 130.9MB in the end (delta: -41.7MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.58ms. Allocated memory is still 161.5MB. Free memory was 130.9MB in the beginning and 128.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.83ms. Allocated memory is still 161.5MB. Free memory was 128.9MB in the beginning and 126.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 364.86ms. Allocated memory is still 161.5MB. Free memory was 126.8MB in the beginning and 112.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 681.86ms. Allocated memory was 161.5MB in the beginning and 230.7MB in the end (delta: 69.2MB). Free memory was 112.1MB in the beginning and 188.8MB in the end (delta: -76.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.98ms. Allocated memory is still 230.7MB. Free memory is still 188.8MB. 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: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 68, overapproximation of someBinaryDOUBLEComparisonOperation at line 77. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 1; [L23] unsigned char var_1_4 = 0; [L24] float var_1_6 = 2.375; [L25] float var_1_7 = 10.8; [L26] double var_1_9 = 9.6; [L27] double var_1_12 = 128.5; [L28] unsigned char var_1_13 = 128; [L29] float var_1_14 = 8.5; [L30] unsigned char var_1_15 = 128; [L31] unsigned char last_1_var_1_13 = 128; VAL [isInitial=0, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=0, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L81] isInitial = 1 [L82] FCALL initially() [L83] COND TRUE 1 [L84] CALL updateLastVariables() [L74] last_1_var_1_13 = var_1_13 VAL [isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=0, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L84] RET updateLastVariables() [L85] CALL updateVariables() [L57] var_1_4 = __VERIFIER_nondet_uchar() [L58] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L58] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L59] CALL assume_abort_if_not(var_1_4 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L59] RET assume_abort_if_not(var_1_4 <= 1) VAL [isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L60] var_1_6 = __VERIFIER_nondet_float() [L61] CALL assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_7=54/5, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_7=54/5, var_1_9=48/5] [L61] RET assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_7=54/5, var_1_9=48/5] [L62] var_1_7 = __VERIFIER_nondet_float() [L63] CALL assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_9=48/5] [L63] RET assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_9=48/5] [L64] var_1_12 = __VERIFIER_nondet_double() [L65] CALL assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_9=48/5] [L65] RET assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_9=48/5] [L66] var_1_14 = __VERIFIER_nondet_float() [L67] CALL assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=128, var_1_1=1, var_1_4=1, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=128, var_1_1=1, var_1_4=1, var_1_9=48/5] [L67] RET assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=128, var_1_1=1, var_1_4=1, var_1_9=48/5] [L68] CALL assume_abort_if_not(var_1_14 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=128, var_1_1=1, var_1_4=1, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=128, var_1_1=1, var_1_4=1, var_1_9=48/5] [L68] RET assume_abort_if_not(var_1_14 != 0.0F) VAL [isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=128, var_1_1=1, var_1_4=1, var_1_9=48/5] [L69] var_1_15 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_15 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=-2, var_1_1=1, var_1_4=1, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=-2, var_1_1=1, var_1_4=1, var_1_9=48/5] [L70] RET assume_abort_if_not(var_1_15 >= 127) VAL [isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=-2, var_1_1=1, var_1_4=1, var_1_9=48/5] [L71] CALL assume_abort_if_not(var_1_15 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=-2, var_1_1=1, var_1_4=1, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=-2, var_1_1=1, var_1_4=1, var_1_9=48/5] [L71] RET assume_abort_if_not(var_1_15 <= 254) VAL [isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=-2, var_1_1=1, var_1_4=1, var_1_9=48/5] [L85] RET updateVariables() [L86] CALL step() [L35] COND TRUE ((((last_1_var_1_13) > (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13))) < (last_1_var_1_13 + last_1_var_1_13) [L36] var_1_9 = var_1_12 VAL [isInitial=1, last_1_var_1_13=128, var_1_12=254, var_1_13=128, var_1_15=-2, var_1_1=1, var_1_4=1, var_1_9=254] [L38] COND TRUE var_1_9 <= (16.2f / var_1_14) [L39] var_1_13 = (var_1_15 - 5) VAL [isInitial=1, last_1_var_1_13=128, var_1_12=254, var_1_13=249, var_1_15=-2, var_1_1=1, var_1_4=1, var_1_9=254] [L41] unsigned char stepLocal_0 = var_1_9 > var_1_9; VAL [isInitial=1, last_1_var_1_13=128, stepLocal_0=0, var_1_12=254, var_1_13=249, var_1_15=-2, var_1_1=1, var_1_4=1, var_1_9=254] [L42] COND FALSE !(stepLocal_0 && var_1_4) [L53] var_1_1 = var_1_13 VAL [isInitial=1, last_1_var_1_13=128, var_1_12=254, var_1_13=249, var_1_15=-2, var_1_1=249, var_1_4=1, var_1_9=254] [L86] RET step() [L87] CALL, EXPR property() [L77-L78] return ((((var_1_9 > var_1_9) && var_1_4) ? ((((((var_1_9) > ((- var_1_9))) ? (var_1_9) : ((- var_1_9)))) != var_1_9) ? ((! (var_1_9 >= (var_1_6 - var_1_7))) ? (var_1_1 == ((unsigned long int) var_1_13)) : (var_1_1 == ((unsigned long int) var_1_13))) : (var_1_1 == ((unsigned long int) var_1_13))) : (var_1_1 == ((unsigned long int) var_1_13))) && ((((((last_1_var_1_13) > (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13))) < (last_1_var_1_13 + last_1_var_1_13)) ? (var_1_9 == ((double) var_1_12)) : 1)) && ((var_1_9 <= (16.2f / var_1_14)) ? (var_1_13 == ((unsigned char) (var_1_15 - 5))) : 1) ; VAL [\result=0, isInitial=1, last_1_var_1_13=128, var_1_12=254, var_1_13=249, var_1_15=-2, var_1_1=249, var_1_4=1, var_1_9=254] [L87] RET, EXPR property() [L87] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_13=128, var_1_12=254, var_1_13=249, var_1_15=-2, var_1_1=249, var_1_4=1, var_1_9=254] [L19] reach_error() VAL [isInitial=1, last_1_var_1_13=128, var_1_12=254, var_1_13=249, var_1_15=-2, var_1_1=249, var_1_4=1, var_1_9=254] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 9, 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, 49 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 49 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 63 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 144/144 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 [2024-11-09 00:48:34,267 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/hardness-nfm22/hardness_operatoramount_amount25_file-36.i -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 a35769e60951934d6bdd49ba63ee6bf96f7f37fd27fc4fb212883b40db8837ed --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 00:48:36,287 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:48:36,357 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-09 00:48:36,362 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:48:36,363 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 00:48:36,387 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:48:36,390 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 00:48:36,390 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 00:48:36,391 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 00:48:36,392 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 00:48:36,393 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:48:36,393 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 00:48:36,393 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:48:36,393 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:48:36,394 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 00:48:36,394 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:48:36,396 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:48:36,396 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:48:36,396 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:48:36,397 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:48:36,397 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:48:36,397 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:48:36,397 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:48:36,397 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 00:48:36,397 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 00:48:36,398 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:48:36,398 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 00:48:36,398 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:48:36,398 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:48:36,398 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:48:36,398 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:48:36,398 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 00:48:36,399 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 00:48:36,399 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 00:48:36,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 00:48:36,399 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:48:36,399 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:48:36,399 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:48:36,400 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-09 00:48:36,400 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 00:48:36,400 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 00:48:36,400 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 00:48:36,401 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 00:48:36,401 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 00:48:36,401 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a35769e60951934d6bdd49ba63ee6bf96f7f37fd27fc4fb212883b40db8837ed [2024-11-09 00:48:36,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:48:36,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:48:36,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:48:36,730 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:48:36,730 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:48:36,731 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-36.i [2024-11-09 00:48:38,180 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:48:38,347 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:48:38,347 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-36.i [2024-11-09 00:48:38,358 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c2f8b72f/4b42d4364fcd4202af3c76170e38d27b/FLAG2af929598 [2024-11-09 00:48:38,376 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c2f8b72f/4b42d4364fcd4202af3c76170e38d27b [2024-11-09 00:48:38,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:48:38,379 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:48:38,382 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:48:38,382 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:48:38,386 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:48:38,388 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:48:38" (1/1) ... [2024-11-09 00:48:38,388 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff5422f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38, skipping insertion in model container [2024-11-09 00:48:38,389 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:48:38" (1/1) ... [2024-11-09 00:48:38,408 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:48:38,549 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/hardness-nfm22/hardness_operatoramount_amount25_file-36.i[915,928] [2024-11-09 00:48:38,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:48:38,596 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:48:38,607 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/hardness-nfm22/hardness_operatoramount_amount25_file-36.i[915,928] [2024-11-09 00:48:38,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:48:38,643 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:48:38,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38 WrapperNode [2024-11-09 00:48:38,644 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:48:38,646 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:48:38,646 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:48:38,647 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:48:38,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38" (1/1) ... [2024-11-09 00:48:38,663 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38" (1/1) ... [2024-11-09 00:48:38,693 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 84 [2024-11-09 00:48:38,693 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:48:38,694 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:48:38,695 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:48:38,695 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:48:38,704 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38" (1/1) ... [2024-11-09 00:48:38,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38" (1/1) ... [2024-11-09 00:48:38,709 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38" (1/1) ... [2024-11-09 00:48:38,724 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 00:48:38,728 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38" (1/1) ... [2024-11-09 00:48:38,729 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38" (1/1) ... [2024-11-09 00:48:38,738 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38" (1/1) ... [2024-11-09 00:48:38,745 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38" (1/1) ... [2024-11-09 00:48:38,747 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38" (1/1) ... [2024-11-09 00:48:38,748 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38" (1/1) ... [2024-11-09 00:48:38,754 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:48:38,754 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:48:38,755 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:48:38,755 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:48:38,756 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38" (1/1) ... [2024-11-09 00:48:38,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 00:48:38,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 00:48:38,800 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) [2024-11-09 00:48:38,803 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 [2024-11-09 00:48:38,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:48:38,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-09 00:48:38,849 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 00:48:38,849 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 00:48:38,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:48:38,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:48:38,917 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:48:38,919 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:48:41,907 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-09 00:48:41,907 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:48:41,921 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:48:41,921 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 00:48:41,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:48:41 BoogieIcfgContainer [2024-11-09 00:48:41,922 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:48:41,923 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 00:48:41,924 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 00:48:41,926 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 00:48:41,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:48:38" (1/3) ... [2024-11-09 00:48:41,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b76db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:48:41, skipping insertion in model container [2024-11-09 00:48:41,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38" (2/3) ... [2024-11-09 00:48:41,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b76db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:48:41, skipping insertion in model container [2024-11-09 00:48:41,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:48:41" (3/3) ... [2024-11-09 00:48:41,928 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-36.i [2024-11-09 00:48:41,941 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 00:48:41,942 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 00:48:41,985 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 00:48:41,990 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;@727fa398, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 00:48:41,990 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 00:48:41,994 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 00:48:42,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 00:48:42,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 00:48:42,001 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 00:48:42,002 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 00:48:42,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:48:42,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1276548251, now seen corresponding path program 1 times [2024-11-09 00:48:42,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 00:48:42,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [771088857] [2024-11-09 00:48:42,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 00:48:42,019 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 [2024-11-09 00:48:42,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 00:48:42,022 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) [2024-11-09 00:48:42,023 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 [2024-11-09 00:48:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:48:42,313 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 00:48:42,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:48:42,344 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-09 00:48:42,345 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 00:48:42,345 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 00:48:42,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [771088857] [2024-11-09 00:48:42,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [771088857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 00:48:42,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 00:48:42,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 00:48:42,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896512273] [2024-11-09 00:48:42,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 00:48:42,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 00:48:42,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 00:48:42,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 00:48:42,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 00:48:42,370 INFO L87 Difference]: Start difference. First operand has 40 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 00:48:42,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 00:48:42,386 INFO L93 Difference]: Finished difference Result 73 states and 115 transitions. [2024-11-09 00:48:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 00:48:42,388 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 64 [2024-11-09 00:48:42,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 00:48:42,393 INFO L225 Difference]: With dead ends: 73 [2024-11-09 00:48:42,393 INFO L226 Difference]: Without dead ends: 36 [2024-11-09 00:48:42,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 00:48:42,399 INFO L432 NwaCegarLoop]: 49 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, 49 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 [2024-11-09 00:48:42,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 00:48:42,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-09 00:48:42,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-09 00:48:42,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 00:48:42,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 49 transitions. [2024-11-09 00:48:42,433 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 49 transitions. Word has length 64 [2024-11-09 00:48:42,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 00:48:42,436 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 49 transitions. [2024-11-09 00:48:42,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 00:48:42,436 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 49 transitions. [2024-11-09 00:48:42,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 00:48:42,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 00:48:42,438 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 00:48:42,448 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 00:48:42,643 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 [2024-11-09 00:48:42,644 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 00:48:42,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:48:42,645 INFO L85 PathProgramCache]: Analyzing trace with hash 485064543, now seen corresponding path program 1 times [2024-11-09 00:48:42,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 00:48:42,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [354649894] [2024-11-09 00:48:42,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 00:48:42,646 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 [2024-11-09 00:48:42,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 00:48:42,650 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) [2024-11-09 00:48:42,669 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 [2024-11-09 00:48:42,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:48:42,923 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 00:48:42,930 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:49:12,289 WARN L286 SmtUtils]: Spent 6.87s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 00:50:02,931 WARN L286 SmtUtils]: Spent 14.10s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)