./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-34.i --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/hardness-nfm22/hardness_operatoramount_amount10_file-34.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 5ba331e7382548a714447aae24dc39067b99d6e58e7280c88c6b71afa304f6fc --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 23:36:41,988 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 23:36:42,055 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 23:36:42,062 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 23:36:42,063 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 23:36:42,096 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 23:36:42,097 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 23:36:42,097 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 23:36:42,098 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 23:36:42,099 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 23:36:42,100 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 23:36:42,100 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 23:36:42,100 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 23:36:42,102 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 23:36:42,103 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 23:36:42,103 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 23:36:42,103 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 23:36:42,104 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 23:36:42,104 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 23:36:42,104 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 23:36:42,104 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 23:36:42,105 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 23:36:42,105 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 23:36:42,105 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 23:36:42,106 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 23:36:42,106 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 23:36:42,106 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 23:36:42,106 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 23:36:42,107 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 23:36:42,107 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 23:36:42,107 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 23:36:42,108 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 23:36:42,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 23:36:42,109 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 23:36:42,109 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 23:36:42,109 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 23:36:42,110 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 23:36:42,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 23:36:42,110 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 23:36:42,110 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 23:36:42,111 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 23:36:42,111 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 23:36:42,111 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ba331e7382548a714447aae24dc39067b99d6e58e7280c88c6b71afa304f6fc [2024-11-18 23:36:42,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 23:36:42,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 23:36:42,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 23:36:42,401 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 23:36:42,401 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 23:36:42,403 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-34.i [2024-11-18 23:36:43,850 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 23:36:44,111 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 23:36:44,112 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-34.i [2024-11-18 23:36:44,120 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54e514586/842dab05db37452e8b189b759a19827e/FLAG0f18d64a7 [2024-11-18 23:36:44,132 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54e514586/842dab05db37452e8b189b759a19827e [2024-11-18 23:36:44,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 23:36:44,135 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 23:36:44,136 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 23:36:44,136 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 23:36:44,142 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 23:36:44,143 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:36:44" (1/1) ... [2024-11-18 23:36:44,144 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5052f4e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:44, skipping insertion in model container [2024-11-18 23:36:44,145 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:36:44" (1/1) ... [2024-11-18 23:36:44,177 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 23:36:44,357 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_amount10_file-34.i[915,928] [2024-11-18 23:36:44,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 23:36:44,402 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 23:36:44,411 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_amount10_file-34.i[915,928] [2024-11-18 23:36:44,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 23:36:44,444 INFO L204 MainTranslator]: Completed translation [2024-11-18 23:36:44,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:44 WrapperNode [2024-11-18 23:36:44,445 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 23:36:44,446 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 23:36:44,446 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 23:36:44,446 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 23:36:44,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:44" (1/1) ... [2024-11-18 23:36:44,460 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:44" (1/1) ... [2024-11-18 23:36:44,496 INFO L138 Inliner]: procedures = 26, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 68 [2024-11-18 23:36:44,496 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 23:36:44,498 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 23:36:44,499 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 23:36:44,499 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 23:36:44,510 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:44" (1/1) ... [2024-11-18 23:36:44,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:44" (1/1) ... [2024-11-18 23:36:44,512 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:44" (1/1) ... [2024-11-18 23:36:44,526 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]. [2024-11-18 23:36:44,526 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:44" (1/1) ... [2024-11-18 23:36:44,526 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:44" (1/1) ... [2024-11-18 23:36:44,530 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:44" (1/1) ... [2024-11-18 23:36:44,534 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:44" (1/1) ... [2024-11-18 23:36:44,535 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:44" (1/1) ... [2024-11-18 23:36:44,536 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:44" (1/1) ... [2024-11-18 23:36:44,539 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 23:36:44,540 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 23:36:44,541 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 23:36:44,541 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 23:36:44,542 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:44" (1/1) ... [2024-11-18 23:36:44,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 23:36:44,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 23:36:44,581 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 23:36:44,583 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 23:36:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 23:36:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 23:36:44,632 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 23:36:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 23:36:44,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 23:36:44,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 23:36:44,710 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 23:36:44,713 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 23:36:44,970 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-18 23:36:44,970 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 23:36:44,982 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 23:36:44,983 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 23:36:44,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:36:44 BoogieIcfgContainer [2024-11-18 23:36:44,984 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 23:36:44,985 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 23:36:44,985 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 23:36:44,989 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 23:36:44,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:36:44" (1/3) ... [2024-11-18 23:36:44,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2765d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:36:44, skipping insertion in model container [2024-11-18 23:36:44,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:44" (2/3) ... [2024-11-18 23:36:44,991 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2765d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:36:44, skipping insertion in model container [2024-11-18 23:36:44,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:36:44" (3/3) ... [2024-11-18 23:36:44,993 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-34.i [2024-11-18 23:36:45,008 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 23:36:45,008 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 23:36:45,065 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 23:36:45,072 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;@6dcbe732, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 23:36:45,072 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 23:36:45,076 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-18 23:36:45,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-18 23:36:45,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:36:45,090 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-11-18 23:36:45,090 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:36:45,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:36:45,097 INFO L85 PathProgramCache]: Analyzing trace with hash 2108200417, now seen corresponding path program 1 times [2024-11-18 23:36:45,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:36:45,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586676519] [2024-11-18 23:36:45,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:36:45,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:36:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:36:45,304 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-18 23:36:45,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 23:36:45,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586676519] [2024-11-18 23:36:45,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586676519] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 23:36:45,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611949724] [2024-11-18 23:36:45,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:36:45,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 23:36:45,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 23:36:45,319 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 23:36:45,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 23:36:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:36:45,436 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 23:36:45,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 23:36:45,464 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-18 23:36:45,464 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 23:36:45,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611949724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:36:45,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 23:36:45,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 23:36:45,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926273984] [2024-11-18 23:36:45,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:36:45,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 23:36:45,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 23:36:45,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 23:36:45,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 23:36:45,494 INFO L87 Difference]: Start difference. First operand has 34 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 23:36:45,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:36:45,511 INFO L93 Difference]: Finished difference Result 61 states and 94 transitions. [2024-11-18 23:36:45,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 23:36:45,513 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2024-11-18 23:36:45,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:36:45,519 INFO L225 Difference]: With dead ends: 61 [2024-11-18 23:36:45,519 INFO L226 Difference]: Without dead ends: 30 [2024-11-18 23:36:45,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 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 23:36:45,525 INFO L432 NwaCegarLoop]: 39 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, 39 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 23:36:45,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 23:36:45,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-18 23:36:45,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-18 23:36:45,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-18 23:36:45,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2024-11-18 23:36:45,572 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 55 [2024-11-18 23:36:45,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:36:45,573 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2024-11-18 23:36:45,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 23:36:45,573 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2024-11-18 23:36:45,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-18 23:36:45,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:36:45,577 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-11-18 23:36:45,594 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 23:36:45,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 23:36:45,782 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:36:45,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:36:45,783 INFO L85 PathProgramCache]: Analyzing trace with hash -700383971, now seen corresponding path program 1 times [2024-11-18 23:36:45,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:36:45,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173915068] [2024-11-18 23:36:45,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:36:45,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:36:45,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 23:36:45,883 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-18 23:36:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 23:36:45,967 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-18 23:36:45,968 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-18 23:36:45,969 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 23:36:45,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 23:36:45,976 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-18 23:36:46,028 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 23:36:46,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:36:46 BoogieIcfgContainer [2024-11-18 23:36:46,036 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 23:36:46,036 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 23:36:46,036 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 23:36:46,037 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 23:36:46,037 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:36:44" (3/4) ... [2024-11-18 23:36:46,040 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-18 23:36:46,042 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 23:36:46,046 INFO L158 Benchmark]: Toolchain (without parser) took 1907.61ms. Allocated memory is still 178.3MB. Free memory was 145.0MB in the beginning and 68.3MB in the end (delta: 76.7MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2024-11-18 23:36:46,046 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 178.3MB. Free memory was 147.2MB in the beginning and 147.0MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 23:36:46,047 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.05ms. Allocated memory is still 178.3MB. Free memory was 144.4MB in the beginning and 131.2MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-18 23:36:46,047 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.90ms. Allocated memory is still 178.3MB. Free memory was 131.2MB in the beginning and 128.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 23:36:46,050 INFO L158 Benchmark]: Boogie Preprocessor took 41.20ms. Allocated memory is still 178.3MB. Free memory was 128.9MB in the beginning and 125.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 23:36:46,051 INFO L158 Benchmark]: RCFGBuilder took 443.26ms. Allocated memory is still 178.3MB. Free memory was 125.4MB in the beginning and 111.5MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-18 23:36:46,051 INFO L158 Benchmark]: TraceAbstraction took 1050.44ms. Allocated memory is still 178.3MB. Free memory was 110.9MB in the beginning and 68.3MB in the end (delta: 42.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-18 23:36:46,051 INFO L158 Benchmark]: Witness Printer took 5.90ms. Allocated memory is still 178.3MB. Free memory is still 68.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 23:36:46,083 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 178.3MB. Free memory was 147.2MB in the beginning and 147.0MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.05ms. Allocated memory is still 178.3MB. Free memory was 144.4MB in the beginning and 131.2MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.90ms. Allocated memory is still 178.3MB. Free memory was 131.2MB in the beginning and 128.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.20ms. Allocated memory is still 178.3MB. Free memory was 128.9MB in the beginning and 125.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 443.26ms. Allocated memory is still 178.3MB. Free memory was 125.4MB in the beginning and 111.5MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1050.44ms. Allocated memory is still 178.3MB. Free memory was 110.9MB in the beginning and 68.3MB in the end (delta: 42.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 5.90ms. Allocated memory is still 178.3MB. Free memory is still 68.3MB. 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 someBinaryDOUBLEComparisonOperation at line 59. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 16; [L23] double var_1_2 = 4.4; [L24] double var_1_3 = 16.475; [L25] unsigned char var_1_4 = 1; [L26] unsigned char var_1_5 = 2; [L27] unsigned char var_1_6 = 5; VAL [isInitial=0, var_1_1=16, var_1_2=22/5, var_1_3=659/40, var_1_4=1, var_1_5=2, var_1_6=5] [L63] isInitial = 1 [L64] FCALL initially() [L65] COND TRUE 1 [L66] FCALL updateLastVariables() [L67] CALL updateVariables() [L42] var_1_2 = __VERIFIER_nondet_double() [L43] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=16, var_1_3=659/40, var_1_4=1, var_1_5=2, var_1_6=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=16, var_1_3=659/40, var_1_4=1, var_1_5=2, var_1_6=5] [L43] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=16, var_1_3=659/40, var_1_4=1, var_1_5=2, var_1_6=5] [L44] var_1_3 = __VERIFIER_nondet_double() [L45] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=16, var_1_4=1, var_1_5=2, var_1_6=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=16, var_1_4=1, var_1_5=2, var_1_6=5] [L45] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=16, var_1_4=1, var_1_5=2, var_1_6=5] [L46] var_1_4 = __VERIFIER_nondet_uchar() [L47] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=16, var_1_5=2, var_1_6=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=16, var_1_5=2, var_1_6=5] [L47] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_1=16, var_1_5=2, var_1_6=5] [L48] CALL assume_abort_if_not(var_1_4 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=16, var_1_4=0, var_1_5=2, var_1_6=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=16, var_1_4=0, var_1_5=2, var_1_6=5] [L48] RET assume_abort_if_not(var_1_4 <= 1) VAL [isInitial=1, var_1_1=16, var_1_4=0, var_1_5=2, var_1_6=5] [L49] var_1_5 = __VERIFIER_nondet_uchar() [L50] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=16, var_1_4=0, var_1_6=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=16, var_1_4=0, var_1_6=5] [L50] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_1=16, var_1_4=0, var_1_6=5] [L51] CALL assume_abort_if_not(var_1_5 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_1=16, var_1_4=0, var_1_5=-231, var_1_6=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=16, var_1_4=0, var_1_5=-231, var_1_6=5] [L51] RET assume_abort_if_not(var_1_5 <= 254) VAL [isInitial=1, var_1_1=16, var_1_4=0, var_1_5=-231, var_1_6=5] [L52] var_1_6 = __VERIFIER_nondet_uchar() [L53] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=16, var_1_4=0, var_1_5=-231] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=16, var_1_4=0, var_1_5=-231] [L53] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_1=16, var_1_4=0, var_1_5=-231] [L54] CALL assume_abort_if_not(var_1_6 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_1=16, var_1_4=0, var_1_5=-231, var_1_6=254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=16, var_1_4=0, var_1_5=-231, var_1_6=254] [L54] RET assume_abort_if_not(var_1_6 <= 254) VAL [isInitial=1, var_1_1=16, var_1_4=0, var_1_5=-231, var_1_6=254] [L67] RET updateVariables() [L68] CALL step() [L31] COND FALSE !(var_1_2 > (- var_1_3)) [L38] var_1_1 = var_1_5 VAL [isInitial=1, var_1_1=-231, var_1_4=0, var_1_5=-231, var_1_6=254] [L68] RET step() [L69] CALL, EXPR property() [L59-L60] return (var_1_2 > (- var_1_3)) ? (var_1_4 ? (var_1_1 == ((unsigned char) ((((var_1_5) < (((((25) > (((((var_1_6) < (8)) ? (var_1_6) : (8))))) ? (25) : (((((var_1_6) < (8)) ? (var_1_6) : (8)))))))) ? (var_1_5) : (((((25) > (((((var_1_6) < (8)) ? (var_1_6) : (8))))) ? (25) : (((((var_1_6) < (8)) ? (var_1_6) : (8))))))))))) : (var_1_1 == ((unsigned char) var_1_6))) : (var_1_1 == ((unsigned char) var_1_5)) ; VAL [\result=0, isInitial=1, var_1_1=-231, var_1_4=0, var_1_5=-231, var_1_6=254] [L69] RET, EXPR property() [L69] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_1=-231, var_1_4=0, var_1_5=-231, var_1_6=254] [L19] reach_error() VAL [isInitial=1, var_1_1=-231, var_1_4=0, var_1_5=-231, var_1_6=254] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 8, 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, 39 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, 39 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 133 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 210/224 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 23:36:46,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-34.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 5ba331e7382548a714447aae24dc39067b99d6e58e7280c88c6b71afa304f6fc --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 23:36:48,381 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 23:36:48,463 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-18 23:36:48,468 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 23:36:48,471 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 23:36:48,502 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 23:36:48,503 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 23:36:48,503 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 23:36:48,504 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 23:36:48,504 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 23:36:48,505 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 23:36:48,505 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 23:36:48,506 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 23:36:48,510 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 23:36:48,510 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 23:36:48,510 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 23:36:48,511 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 23:36:48,511 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 23:36:48,511 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 23:36:48,511 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 23:36:48,511 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 23:36:48,513 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 23:36:48,513 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 23:36:48,514 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-18 23:36:48,514 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-18 23:36:48,515 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 23:36:48,515 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-18 23:36:48,515 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 23:36:48,515 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 23:36:48,516 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 23:36:48,516 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 23:36:48,516 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 23:36:48,516 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 23:36:48,516 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 23:36:48,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 23:36:48,517 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 23:36:48,517 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 23:36:48,518 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 23:36:48,519 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-18 23:36:48,519 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-18 23:36:48,519 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 23:36:48,519 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 23:36:48,520 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 23:36:48,520 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 23:36:48,520 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ba331e7382548a714447aae24dc39067b99d6e58e7280c88c6b71afa304f6fc [2024-11-18 23:36:48,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 23:36:48,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 23:36:48,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 23:36:48,889 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 23:36:48,889 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 23:36:48,891 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-34.i [2024-11-18 23:36:50,431 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 23:36:50,679 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 23:36:50,680 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-34.i [2024-11-18 23:36:50,687 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eb1b8fb5/9fa6396ff5b04e0d81c172e2e76df3a2/FLAG44c5c2185 [2024-11-18 23:36:50,699 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eb1b8fb5/9fa6396ff5b04e0d81c172e2e76df3a2 [2024-11-18 23:36:50,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 23:36:50,703 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 23:36:50,704 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 23:36:50,705 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 23:36:50,710 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 23:36:50,710 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:36:50" (1/1) ... [2024-11-18 23:36:50,711 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d373bf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:50, skipping insertion in model container [2024-11-18 23:36:50,711 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:36:50" (1/1) ... [2024-11-18 23:36:50,734 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 23:36:50,929 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_amount10_file-34.i[915,928] [2024-11-18 23:36:50,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 23:36:50,990 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 23:36:51,003 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_amount10_file-34.i[915,928] [2024-11-18 23:36:51,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 23:36:51,052 INFO L204 MainTranslator]: Completed translation [2024-11-18 23:36:51,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:51 WrapperNode [2024-11-18 23:36:51,053 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 23:36:51,054 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 23:36:51,054 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 23:36:51,054 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 23:36:51,061 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:51" (1/1) ... [2024-11-18 23:36:51,075 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:51" (1/1) ... [2024-11-18 23:36:51,101 INFO L138 Inliner]: procedures = 27, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 68 [2024-11-18 23:36:51,105 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 23:36:51,106 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 23:36:51,106 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 23:36:51,106 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 23:36:51,117 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:51" (1/1) ... [2024-11-18 23:36:51,118 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:51" (1/1) ... [2024-11-18 23:36:51,121 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:51" (1/1) ... [2024-11-18 23:36:51,137 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]. [2024-11-18 23:36:51,139 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:51" (1/1) ... [2024-11-18 23:36:51,139 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:51" (1/1) ... [2024-11-18 23:36:51,149 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:51" (1/1) ... [2024-11-18 23:36:51,154 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:51" (1/1) ... [2024-11-18 23:36:51,156 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:51" (1/1) ... [2024-11-18 23:36:51,161 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:51" (1/1) ... [2024-11-18 23:36:51,164 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 23:36:51,169 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 23:36:51,169 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 23:36:51,169 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 23:36:51,170 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:51" (1/1) ... [2024-11-18 23:36:51,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 23:36:51,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 23:36:51,205 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 23:36:51,221 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 23:36:51,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 23:36:51,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-18 23:36:51,267 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 23:36:51,267 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 23:36:51,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 23:36:51,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 23:36:51,357 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 23:36:51,361 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 23:36:51,586 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-18 23:36:51,587 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 23:36:51,601 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 23:36:51,602 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 23:36:51,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:36:51 BoogieIcfgContainer [2024-11-18 23:36:51,603 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 23:36:51,606 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 23:36:51,606 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 23:36:51,609 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 23:36:51,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:36:50" (1/3) ... [2024-11-18 23:36:51,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68729be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:36:51, skipping insertion in model container [2024-11-18 23:36:51,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:51" (2/3) ... [2024-11-18 23:36:51,612 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68729be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:36:51, skipping insertion in model container [2024-11-18 23:36:51,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:36:51" (3/3) ... [2024-11-18 23:36:51,614 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-34.i [2024-11-18 23:36:51,632 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 23:36:51,633 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 23:36:51,702 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 23:36:51,708 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;@3cb58738, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 23:36:51,710 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 23:36:51,715 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-18 23:36:51,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-18 23:36:51,724 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:36:51,725 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-11-18 23:36:51,726 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:36:51,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:36:51,732 INFO L85 PathProgramCache]: Analyzing trace with hash 2108200417, now seen corresponding path program 1 times [2024-11-18 23:36:51,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 23:36:51,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [298966656] [2024-11-18 23:36:51,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:36:51,750 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 23:36:51,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 23:36:51,753 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 23:36:51,755 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 23:36:51,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:36:51,886 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 23:36:51,893 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 23:36:51,923 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-18 23:36:51,924 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 23:36:51,925 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 23:36:51,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [298966656] [2024-11-18 23:36:51,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [298966656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:36:51,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:36:51,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 23:36:51,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039557228] [2024-11-18 23:36:51,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:36:51,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 23:36:51,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 23:36:51,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 23:36:51,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 23:36:51,970 INFO L87 Difference]: Start difference. First operand has 34 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 23:36:51,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:36:51,997 INFO L93 Difference]: Finished difference Result 61 states and 94 transitions. [2024-11-18 23:36:51,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 23:36:52,000 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2024-11-18 23:36:52,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:36:52,007 INFO L225 Difference]: With dead ends: 61 [2024-11-18 23:36:52,008 INFO L226 Difference]: Without dead ends: 30 [2024-11-18 23:36:52,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 54 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 23:36:52,017 INFO L432 NwaCegarLoop]: 39 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, 39 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 23:36:52,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 23:36:52,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-18 23:36:52,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-18 23:36:52,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-18 23:36:52,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2024-11-18 23:36:52,062 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 55 [2024-11-18 23:36:52,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:36:52,063 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2024-11-18 23:36:52,064 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 23:36:52,064 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2024-11-18 23:36:52,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-18 23:36:52,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:36:52,067 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-11-18 23:36:52,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-18 23:36:52,270 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 23:36:52,271 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:36:52,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:36:52,272 INFO L85 PathProgramCache]: Analyzing trace with hash -700383971, now seen corresponding path program 1 times [2024-11-18 23:36:52,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 23:36:52,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1134821791] [2024-11-18 23:36:52,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:36:52,273 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 23:36:52,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 23:36:52,276 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 23:36:52,277 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 23:36:52,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:36:52,385 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-18 23:36:52,391 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 23:36:59,683 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-18 23:36:59,684 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 23:36:59,684 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 23:36:59,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1134821791] [2024-11-18 23:36:59,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1134821791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:36:59,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:36:59,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 23:36:59,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349924731] [2024-11-18 23:36:59,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:36:59,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 23:36:59,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 23:36:59,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 23:36:59,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 23:36:59,691 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-18 23:36:59,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:36:59,845 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions. [2024-11-18 23:36:59,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 23:36:59,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 55 [2024-11-18 23:36:59,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:36:59,849 INFO L225 Difference]: With dead ends: 38 [2024-11-18 23:36:59,849 INFO L226 Difference]: Without dead ends: 36 [2024-11-18 23:36:59,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 23:36:59,851 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 5 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 23:36:59,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 138 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 23:36:59,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-18 23:36:59,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2024-11-18 23:36:59,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 23 states have internal predecessors, (26), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-18 23:36:59,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2024-11-18 23:36:59,861 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 42 transitions. Word has length 55 [2024-11-18 23:36:59,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:36:59,863 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 42 transitions. [2024-11-18 23:36:59,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-18 23:36:59,863 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2024-11-18 23:36:59,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-18 23:36:59,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:36:59,865 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-11-18 23:36:59,870 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 23:37:00,066 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 23:37:00,067 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:37:00,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:37:00,068 INFO L85 PathProgramCache]: Analyzing trace with hash -472626954, now seen corresponding path program 1 times [2024-11-18 23:37:00,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 23:37:00,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [80491964] [2024-11-18 23:37:00,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:37:00,069 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 23:37:00,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 23:37:00,072 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 23:37:00,075 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 23:37:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:37:00,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-18 23:37:00,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 23:37:04,320 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-18 23:37:04,320 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 23:37:04,321 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 23:37:04,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [80491964] [2024-11-18 23:37:04,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [80491964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:37:04,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:37:04,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 23:37:04,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435968231] [2024-11-18 23:37:04,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:37:04,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 23:37:04,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 23:37:04,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 23:37:04,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 23:37:04,326 INFO L87 Difference]: Start difference. First operand 33 states and 42 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-18 23:37:04,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:37:04,523 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2024-11-18 23:37:04,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 23:37:04,525 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 56 [2024-11-18 23:37:04,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:37:04,526 INFO L225 Difference]: With dead ends: 44 [2024-11-18 23:37:04,526 INFO L226 Difference]: Without dead ends: 42 [2024-11-18 23:37:04,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-18 23:37:04,527 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 15 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 23:37:04,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 170 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 23:37:04,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-18 23:37:04,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 33. [2024-11-18 23:37:04,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 23 states have internal predecessors, (26), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-18 23:37:04,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2024-11-18 23:37:04,534 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 42 transitions. Word has length 56 [2024-11-18 23:37:04,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:37:04,536 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 42 transitions. [2024-11-18 23:37:04,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-18 23:37:04,536 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2024-11-18 23:37:04,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-18 23:37:04,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:37:04,540 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-11-18 23:37:04,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-18 23:37:04,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 23:37:04,741 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:37:04,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:37:04,742 INFO L85 PathProgramCache]: Analyzing trace with hash -470779912, now seen corresponding path program 1 times [2024-11-18 23:37:04,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 23:37:04,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809613852] [2024-11-18 23:37:04,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:37:04,742 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 23:37:04,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 23:37:04,746 INFO L229 MonitoredProcess]: Starting monitored process 5 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 23:37:04,747 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 (5)] Waiting until timeout for monitored process [2024-11-18 23:37:04,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:37:04,814 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-18 23:37:04,817 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 23:37:06,417 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-18 23:37:06,417 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 23:37:06,418 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 23:37:06,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809613852] [2024-11-18 23:37:06,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1809613852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:37:06,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:37:06,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 23:37:06,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408908169] [2024-11-18 23:37:06,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:37:06,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 23:37:06,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 23:37:06,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 23:37:06,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 23:37:06,421 INFO L87 Difference]: Start difference. First operand 33 states and 42 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-18 23:37:06,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:37:06,577 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2024-11-18 23:37:06,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 23:37:06,578 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 56 [2024-11-18 23:37:06,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:37:06,579 INFO L225 Difference]: With dead ends: 42 [2024-11-18 23:37:06,579 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 23:37:06,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-18 23:37:06,580 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 13 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 23:37:06,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 168 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 23:37:06,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 23:37:06,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 23:37:06,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 23:37:06,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 23:37:06,584 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 56 [2024-11-18 23:37:06,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:37:06,584 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 23:37:06,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-18 23:37:06,584 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 23:37:06,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 23:37:06,587 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 23:37:06,594 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 (5)] Ended with exit code 0 [2024-11-18 23:37:06,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /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 23:37:06,791 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-18 23:37:06,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 23:37:06,807 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 23:37:06,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:37:06 BoogieIcfgContainer [2024-11-18 23:37:06,827 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 23:37:06,827 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 23:37:06,827 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 23:37:06,827 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 23:37:06,828 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:36:51" (3/4) ... [2024-11-18 23:37:06,831 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 23:37:06,835 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-18 23:37:06,841 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-18 23:37:06,842 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-18 23:37:06,842 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-18 23:37:06,842 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 23:37:06,942 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 23:37:06,943 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 23:37:06,943 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 23:37:06,944 INFO L158 Benchmark]: Toolchain (without parser) took 16241.25ms. Allocated memory was 67.1MB in the beginning and 809.5MB in the end (delta: 742.4MB). Free memory was 47.3MB in the beginning and 443.7MB in the end (delta: -396.4MB). Peak memory consumption was 346.3MB. Max. memory is 16.1GB. [2024-11-18 23:37:06,945 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 67.1MB. Free memory is still 43.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 23:37:06,946 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.84ms. Allocated memory is still 67.1MB. Free memory was 47.1MB in the beginning and 33.2MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-18 23:37:06,946 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.32ms. Allocated memory is still 67.1MB. Free memory was 33.0MB in the beginning and 31.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 23:37:06,946 INFO L158 Benchmark]: Boogie Preprocessor took 62.27ms. Allocated memory is still 67.1MB. Free memory was 31.2MB in the beginning and 28.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 23:37:06,947 INFO L158 Benchmark]: RCFGBuilder took 434.22ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 28.9MB in the beginning and 59.5MB in the end (delta: -30.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 23:37:06,947 INFO L158 Benchmark]: TraceAbstraction took 15220.90ms. Allocated memory was 90.2MB in the beginning and 809.5MB in the end (delta: 719.3MB). Free memory was 58.8MB in the beginning and 448.9MB in the end (delta: -390.1MB). Peak memory consumption was 328.5MB. Max. memory is 16.1GB. [2024-11-18 23:37:06,948 INFO L158 Benchmark]: Witness Printer took 116.53ms. Allocated memory is still 809.5MB. Free memory was 448.9MB in the beginning and 443.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-18 23:37:06,949 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 67.1MB. Free memory is still 43.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.84ms. Allocated memory is still 67.1MB. Free memory was 47.1MB in the beginning and 33.2MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.32ms. Allocated memory is still 67.1MB. Free memory was 33.0MB in the beginning and 31.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.27ms. Allocated memory is still 67.1MB. Free memory was 31.2MB in the beginning and 28.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 434.22ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 28.9MB in the beginning and 59.5MB in the end (delta: -30.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 15220.90ms. Allocated memory was 90.2MB in the beginning and 809.5MB in the end (delta: 719.3MB). Free memory was 58.8MB in the beginning and 448.9MB in the end (delta: -390.1MB). Peak memory consumption was 328.5MB. Max. memory is 16.1GB. * Witness Printer took 116.53ms. Allocated memory is still 809.5MB. Free memory was 448.9MB in the beginning and 443.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.1s, OverallIterations: 4, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 515 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 353 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 108 IncrementalHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 162 mSDtfsCounter, 108 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 224 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 19, 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, 4 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 13.1s InterpolantComputationTime, 222 NumberOfCodeBlocks, 222 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 282 SizeOfPredicates, 18 NumberOfNonLiveVariables, 374 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 448/448 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_2 == \old(var_1_2))) && (var_1_3 == \old(var_1_3))) && (var_1_4 == \old(var_1_4))) && (var_1_5 == \old(var_1_5))) && (var_1_6 == \old(var_1_6))) RESULT: Ultimate proved your program to be correct! [2024-11-18 23:37:06,985 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE