./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-35.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-35.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 0296c2c765da5a529e1bbaf319642b95a8aa6afdf63ae3123d19a38a95241bba --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 10:18:43,173 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 10:18:43,243 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 10:18:43,248 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 10:18:43,250 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 10:18:43,279 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 10:18:43,280 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 10:18:43,281 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 10:18:43,281 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 10:18:43,283 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 10:18:43,283 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 10:18:43,283 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 10:18:43,284 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 10:18:43,284 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 10:18:43,285 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 10:18:43,286 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 10:18:43,286 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 10:18:43,286 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 10:18:43,286 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 10:18:43,286 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 10:18:43,286 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 10:18:43,289 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 10:18:43,290 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 10:18:43,290 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 10:18:43,290 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 10:18:43,290 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 10:18:43,290 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 10:18:43,290 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 10:18:43,291 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 10:18:43,291 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 10:18:43,291 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 10:18:43,291 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 10:18:43,291 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 10:18:43,291 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 10:18:43,292 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 10:18:43,292 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 10:18:43,292 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 10:18:43,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 10:18:43,292 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 10:18:43,292 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 10:18:43,292 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 10:18:43,295 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 10:18:43,295 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0296c2c765da5a529e1bbaf319642b95a8aa6afdf63ae3123d19a38a95241bba [2024-10-24 10:18:43,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 10:18:43,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 10:18:43,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 10:18:43,528 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 10:18:43,529 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 10:18:43,530 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-35.i [2024-10-24 10:18:44,773 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 10:18:44,925 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 10:18:44,926 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-35.i [2024-10-24 10:18:44,935 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af62da2ea/5452bae5e2394a709f06a8372fa00a85/FLAG57e2664e7 [2024-10-24 10:18:44,946 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af62da2ea/5452bae5e2394a709f06a8372fa00a85 [2024-10-24 10:18:44,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 10:18:44,949 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 10:18:44,950 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 10:18:44,950 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 10:18:44,954 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 10:18:44,955 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:18:44" (1/1) ... [2024-10-24 10:18:44,956 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@293a27fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:44, skipping insertion in model container [2024-10-24 10:18:44,956 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:18:44" (1/1) ... [2024-10-24 10:18:44,971 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 10:18:45,098 WARN L248 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-35.i[915,928] [2024-10-24 10:18:45,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 10:18:45,122 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 10:18:45,130 WARN L248 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-35.i[915,928] [2024-10-24 10:18:45,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 10:18:45,149 INFO L204 MainTranslator]: Completed translation [2024-10-24 10:18:45,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:45 WrapperNode [2024-10-24 10:18:45,150 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 10:18:45,150 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 10:18:45,150 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 10:18:45,150 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 10:18:45,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:45" (1/1) ... [2024-10-24 10:18:45,162 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:45" (1/1) ... [2024-10-24 10:18:45,178 INFO L138 Inliner]: procedures = 26, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 62 [2024-10-24 10:18:45,178 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 10:18:45,179 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 10:18:45,179 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 10:18:45,179 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 10:18:45,186 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:45" (1/1) ... [2024-10-24 10:18:45,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:45" (1/1) ... [2024-10-24 10:18:45,188 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:45" (1/1) ... [2024-10-24 10:18:45,197 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]. [2024-10-24 10:18:45,197 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:45" (1/1) ... [2024-10-24 10:18:45,198 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:45" (1/1) ... [2024-10-24 10:18:45,200 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:45" (1/1) ... [2024-10-24 10:18:45,203 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:45" (1/1) ... [2024-10-24 10:18:45,203 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:45" (1/1) ... [2024-10-24 10:18:45,204 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:45" (1/1) ... [2024-10-24 10:18:45,205 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 10:18:45,206 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 10:18:45,206 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 10:18:45,206 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 10:18:45,207 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:45" (1/1) ... [2024-10-24 10:18:45,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 10:18:45,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 10:18:45,239 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) [2024-10-24 10:18:45,242 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 [2024-10-24 10:18:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 10:18:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 10:18:45,281 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 10:18:45,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 10:18:45,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 10:18:45,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 10:18:45,337 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 10:18:45,338 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 10:18:45,446 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-10-24 10:18:45,446 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 10:18:45,497 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 10:18:45,497 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 10:18:45,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:18:45 BoogieIcfgContainer [2024-10-24 10:18:45,498 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 10:18:45,499 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 10:18:45,499 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 10:18:45,505 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 10:18:45,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:18:44" (1/3) ... [2024-10-24 10:18:45,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f64667c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:18:45, skipping insertion in model container [2024-10-24 10:18:45,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:45" (2/3) ... [2024-10-24 10:18:45,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f64667c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:18:45, skipping insertion in model container [2024-10-24 10:18:45,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:18:45" (3/3) ... [2024-10-24 10:18:45,508 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-35.i [2024-10-24 10:18:45,521 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 10:18:45,521 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 10:18:45,567 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 10:18:45,572 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;@44b28c44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 10:18:45,573 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 10:18:45,576 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 10:18:45,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-24 10:18:45,582 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 10:18:45,583 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 10:18:45,583 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 10:18:45,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 10:18:45,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1035643480, now seen corresponding path program 1 times [2024-10-24 10:18:45,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 10:18:45,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733385250] [2024-10-24 10:18:45,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 10:18:45,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 10:18:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 10:18:45,736 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 10:18:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 10:18:45,814 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 10:18:45,817 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 10:18:45,818 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-24 10:18:45,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 10:18:45,824 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-24 10:18:45,850 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 10:18:45,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:18:45 BoogieIcfgContainer [2024-10-24 10:18:45,856 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 10:18:45,857 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 10:18:45,857 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 10:18:45,857 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 10:18:45,858 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:18:45" (3/4) ... [2024-10-24 10:18:45,862 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 10:18:45,863 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 10:18:45,863 INFO L158 Benchmark]: Toolchain (without parser) took 914.34ms. Allocated memory was 165.7MB in the beginning and 224.4MB in the end (delta: 58.7MB). Free memory was 110.0MB in the beginning and 188.6MB in the end (delta: -78.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 10:18:45,864 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 165.7MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 10:18:45,864 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.01ms. Allocated memory is still 165.7MB. Free memory was 109.5MB in the beginning and 96.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-24 10:18:45,864 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.16ms. Allocated memory is still 165.7MB. Free memory was 96.9MB in the beginning and 95.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 10:18:45,865 INFO L158 Benchmark]: Boogie Preprocessor took 26.63ms. Allocated memory is still 165.7MB. Free memory was 95.3MB in the beginning and 93.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 10:18:45,865 INFO L158 Benchmark]: RCFGBuilder took 291.52ms. Allocated memory is still 165.7MB. Free memory was 93.2MB in the beginning and 79.4MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-24 10:18:45,865 INFO L158 Benchmark]: TraceAbstraction took 357.11ms. Allocated memory was 165.7MB in the beginning and 224.4MB in the end (delta: 58.7MB). Free memory was 78.5MB in the beginning and 188.6MB in the end (delta: -110.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 10:18:45,866 INFO L158 Benchmark]: Witness Printer took 5.61ms. Allocated memory is still 224.4MB. Free memory is still 188.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 10:18:45,867 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 165.7MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 200.01ms. Allocated memory is still 165.7MB. Free memory was 109.5MB in the beginning and 96.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.16ms. Allocated memory is still 165.7MB. Free memory was 96.9MB in the beginning and 95.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.63ms. Allocated memory is still 165.7MB. Free memory was 95.3MB in the beginning and 93.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 291.52ms. Allocated memory is still 165.7MB. Free memory was 93.2MB in the beginning and 79.4MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 357.11ms. Allocated memory was 165.7MB in the beginning and 224.4MB in the end (delta: 58.7MB). Free memory was 78.5MB in the beginning and 188.6MB in the end (delta: -110.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.61ms. Allocated memory is still 224.4MB. Free memory is still 188.6MB. 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 53. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -2; [L23] signed char var_1_2 = 32; [L24] signed char var_1_3 = 2; [L25] signed char var_1_4 = 10; [L26] double var_1_5 = 4.4; [L57] isInitial = 1 [L58] FCALL initially() [L59] COND TRUE 1 [L60] FCALL updateLastVariables() [L61] CALL updateVariables() [L40] var_1_2 = __VERIFIER_nondet_char() [L41] CALL assume_abort_if_not(var_1_2 >= -128) VAL [\old(cond)=1, isInitial=1, var_1_1=-2, var_1_2=0, var_1_3=2, var_1_4=10, var_1_5=22/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=-2, var_1_2=0, var_1_3=2, var_1_4=10, var_1_5=22/5] [L41] RET assume_abort_if_not(var_1_2 >= -128) VAL [isInitial=1, var_1_1=-2, var_1_2=0, var_1_3=2, var_1_4=10, var_1_5=22/5] [L42] CALL assume_abort_if_not(var_1_2 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_1=-2, var_1_2=0, var_1_3=2, var_1_4=10, var_1_5=22/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=-2, var_1_2=0, var_1_3=2, var_1_4=10, var_1_5=22/5] [L42] RET assume_abort_if_not(var_1_2 <= 127) VAL [isInitial=1, var_1_1=-2, var_1_2=0, var_1_3=2, var_1_4=10, var_1_5=22/5] [L43] var_1_3 = __VERIFIER_nondet_char() [L44] CALL assume_abort_if_not(var_1_3 >= -128) VAL [\old(cond)=1, isInitial=1, var_1_1=-2, var_1_2=0, var_1_3=-1, var_1_4=10, var_1_5=22/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=-2, var_1_2=0, var_1_3=-1, var_1_4=10, var_1_5=22/5] [L44] RET assume_abort_if_not(var_1_3 >= -128) VAL [isInitial=1, var_1_1=-2, var_1_2=0, var_1_3=-1, var_1_4=10, var_1_5=22/5] [L45] CALL assume_abort_if_not(var_1_3 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_1=-2, var_1_2=0, var_1_3=-1, var_1_4=10, var_1_5=22/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=-2, var_1_2=0, var_1_3=-1, var_1_4=10, var_1_5=22/5] [L45] RET assume_abort_if_not(var_1_3 <= 127) VAL [isInitial=1, var_1_1=-2, var_1_2=0, var_1_3=-1, var_1_4=10, var_1_5=22/5] [L46] var_1_4 = __VERIFIER_nondet_char() [L47] CALL assume_abort_if_not(var_1_4 >= -128) VAL [\old(cond)=1, isInitial=1, var_1_1=-2, var_1_2=0, var_1_3=-1, var_1_4=0, var_1_5=22/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=-2, var_1_2=0, var_1_3=-1, var_1_4=0, var_1_5=22/5] [L47] RET assume_abort_if_not(var_1_4 >= -128) VAL [isInitial=1, var_1_1=-2, var_1_2=0, var_1_3=-1, var_1_4=0, var_1_5=22/5] [L48] CALL assume_abort_if_not(var_1_4 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_1=-2, var_1_2=0, var_1_3=-1, var_1_4=0, var_1_5=22/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=-2, var_1_2=0, var_1_3=-1, var_1_4=0, var_1_5=22/5] [L48] RET assume_abort_if_not(var_1_4 <= 127) VAL [isInitial=1, var_1_1=-2, var_1_2=0, var_1_3=-1, var_1_4=0, var_1_5=22/5] [L61] RET updateVariables() [L62] CALL step() [L30] COND TRUE var_1_2 != var_1_3 [L31] var_1_1 = ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2))) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_3=-1, var_1_4=0, var_1_5=22/5] [L37] var_1_5 = 9999.5 [L62] RET step() [L63] CALL, EXPR property() [L53-L54] return ((var_1_2 != var_1_3) ? (var_1_1 == ((signed short int) ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2))))) : ((var_1_3 <= ((((var_1_2) < (var_1_4)) ? (var_1_2) : (var_1_4)))) ? (var_1_1 == ((signed short int) (var_1_3 + var_1_4))) : 1)) && (var_1_5 == ((double) 9999.5)) ; [L63] RET, EXPR property() [L63] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_3=-1, var_1_4=0, var_1_5=19999/2] [L19] reach_error() VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_3=-1, var_1_4=0, var_1_5=19999/2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-24 10:18:45,891 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-35.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 0296c2c765da5a529e1bbaf319642b95a8aa6afdf63ae3123d19a38a95241bba --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 10:18:47,816 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 10:18:47,882 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-24 10:18:47,887 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 10:18:47,887 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 10:18:47,912 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 10:18:47,913 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 10:18:47,913 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 10:18:47,914 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 10:18:47,916 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 10:18:47,916 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 10:18:47,916 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 10:18:47,916 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 10:18:47,917 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 10:18:47,919 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 10:18:47,919 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 10:18:47,920 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 10:18:47,920 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 10:18:47,920 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 10:18:47,920 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 10:18:47,920 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 10:18:47,920 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 10:18:47,921 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 10:18:47,921 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 10:18:47,921 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 10:18:47,921 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 10:18:47,921 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 10:18:47,921 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 10:18:47,921 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 10:18:47,921 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 10:18:47,922 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 10:18:47,922 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 10:18:47,922 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 10:18:47,922 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 10:18:47,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 10:18:47,922 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 10:18:47,922 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 10:18:47,922 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 10:18:47,923 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 10:18:47,923 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 10:18:47,923 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 10:18:47,925 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 10:18:47,925 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 10:18:47,926 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 10:18:47,926 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 10:18:47,926 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0296c2c765da5a529e1bbaf319642b95a8aa6afdf63ae3123d19a38a95241bba [2024-10-24 10:18:48,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 10:18:48,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 10:18:48,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 10:18:48,205 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 10:18:48,206 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 10:18:48,208 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-35.i [2024-10-24 10:18:49,579 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 10:18:49,725 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 10:18:49,728 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-35.i [2024-10-24 10:18:49,736 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1ffef22a/2fd20955a84c4f7999b49d900b60b376/FLAG06ad2b5da [2024-10-24 10:18:49,751 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1ffef22a/2fd20955a84c4f7999b49d900b60b376 [2024-10-24 10:18:49,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 10:18:49,755 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 10:18:49,757 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 10:18:49,757 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 10:18:49,761 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 10:18:49,762 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:18:49" (1/1) ... [2024-10-24 10:18:49,764 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c24afec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:49, skipping insertion in model container [2024-10-24 10:18:49,764 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:18:49" (1/1) ... [2024-10-24 10:18:49,784 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 10:18:49,941 WARN L248 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-35.i[915,928] [2024-10-24 10:18:49,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 10:18:49,987 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 10:18:49,998 WARN L248 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-35.i[915,928] [2024-10-24 10:18:50,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 10:18:50,026 INFO L204 MainTranslator]: Completed translation [2024-10-24 10:18:50,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:50 WrapperNode [2024-10-24 10:18:50,027 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 10:18:50,029 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 10:18:50,029 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 10:18:50,029 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 10:18:50,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:50" (1/1) ... [2024-10-24 10:18:50,043 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:50" (1/1) ... [2024-10-24 10:18:50,061 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 59 [2024-10-24 10:18:50,061 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 10:18:50,062 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 10:18:50,062 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 10:18:50,063 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 10:18:50,071 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:50" (1/1) ... [2024-10-24 10:18:50,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:50" (1/1) ... [2024-10-24 10:18:50,077 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:50" (1/1) ... [2024-10-24 10:18:50,092 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]. [2024-10-24 10:18:50,093 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:50" (1/1) ... [2024-10-24 10:18:50,093 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:50" (1/1) ... [2024-10-24 10:18:50,100 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:50" (1/1) ... [2024-10-24 10:18:50,106 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:50" (1/1) ... [2024-10-24 10:18:50,108 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:50" (1/1) ... [2024-10-24 10:18:50,109 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:50" (1/1) ... [2024-10-24 10:18:50,111 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 10:18:50,112 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 10:18:50,112 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 10:18:50,112 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 10:18:50,113 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:50" (1/1) ... [2024-10-24 10:18:50,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 10:18:50,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 10:18:50,139 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) [2024-10-24 10:18:50,143 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 [2024-10-24 10:18:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 10:18:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 10:18:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 10:18:50,178 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 10:18:50,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 10:18:50,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 10:18:50,241 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 10:18:50,243 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 10:18:50,422 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-10-24 10:18:50,425 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 10:18:50,467 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 10:18:50,468 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 10:18:50,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:18:50 BoogieIcfgContainer [2024-10-24 10:18:50,468 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 10:18:50,470 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 10:18:50,470 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 10:18:50,473 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 10:18:50,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:18:49" (1/3) ... [2024-10-24 10:18:50,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd1f8eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:18:50, skipping insertion in model container [2024-10-24 10:18:50,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:50" (2/3) ... [2024-10-24 10:18:50,475 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd1f8eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:18:50, skipping insertion in model container [2024-10-24 10:18:50,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:18:50" (3/3) ... [2024-10-24 10:18:50,476 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-35.i [2024-10-24 10:18:50,490 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 10:18:50,490 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 10:18:50,546 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 10:18:50,552 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;@193c6fc1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 10:18:50,553 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 10:18:50,556 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 10:18:50,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-24 10:18:50,563 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 10:18:50,563 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 10:18:50,564 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 10:18:50,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 10:18:50,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1035643480, now seen corresponding path program 1 times [2024-10-24 10:18:50,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 10:18:50,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1285872808] [2024-10-24 10:18:50,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 10:18:50,585 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 [2024-10-24 10:18:50,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 10:18:50,588 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) [2024-10-24 10:18:50,589 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 [2024-10-24 10:18:50,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:18:50,682 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 10:18:50,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 10:18:52,768 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 10:18:52,768 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 10:18:52,769 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 10:18:52,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1285872808] [2024-10-24 10:18:52,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1285872808] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 10:18:52,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 10:18:52,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 10:18:52,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478502596] [2024-10-24 10:18:52,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 10:18:52,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 10:18:52,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 10:18:52,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 10:18:52,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 10:18:52,793 INFO L87 Difference]: Start difference. First operand has 24 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-10-24 10:18:52,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 10:18:52,870 INFO L93 Difference]: Finished difference Result 49 states and 79 transitions. [2024-10-24 10:18:52,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 10:18:52,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 39 [2024-10-24 10:18:52,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 10:18:52,879 INFO L225 Difference]: With dead ends: 49 [2024-10-24 10:18:52,880 INFO L226 Difference]: Without dead ends: 26 [2024-10-24 10:18:52,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 10:18:52,886 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 3 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 10:18:52,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 65 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 10:18:52,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-10-24 10:18:52,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2024-10-24 10:18:52,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 10:18:52,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2024-10-24 10:18:52,922 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 39 [2024-10-24 10:18:52,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 10:18:52,924 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2024-10-24 10:18:52,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-10-24 10:18:52,925 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2024-10-24 10:18:52,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-24 10:18:52,927 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 10:18:52,927 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 10:18:52,931 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 [2024-10-24 10:18:53,130 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 [2024-10-24 10:18:53,131 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 10:18:53,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 10:18:53,132 INFO L85 PathProgramCache]: Analyzing trace with hash -2039839513, now seen corresponding path program 1 times [2024-10-24 10:18:53,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 10:18:53,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [794418394] [2024-10-24 10:18:53,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 10:18:53,133 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 [2024-10-24 10:18:53,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 10:18:53,135 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) [2024-10-24 10:18:53,136 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 [2024-10-24 10:18:53,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:18:53,189 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 10:18:53,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 10:18:53,992 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 10:18:53,992 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 10:18:53,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 10:18:53,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [794418394] [2024-10-24 10:18:53,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [794418394] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 10:18:53,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 10:18:53,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 10:18:53,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756792696] [2024-10-24 10:18:53,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 10:18:53,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 10:18:53,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 10:18:53,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 10:18:53,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 10:18:53,998 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-10-24 10:18:54,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 10:18:54,052 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2024-10-24 10:18:54,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 10:18:54,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 40 [2024-10-24 10:18:54,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 10:18:54,053 INFO L225 Difference]: With dead ends: 32 [2024-10-24 10:18:54,053 INFO L226 Difference]: Without dead ends: 30 [2024-10-24 10:18:54,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 10:18:54,054 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 12 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 10:18:54,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 65 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 10:18:54,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-10-24 10:18:54,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2024-10-24 10:18:54,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 10:18:54,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2024-10-24 10:18:54,058 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 40 [2024-10-24 10:18:54,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 10:18:54,059 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2024-10-24 10:18:54,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-10-24 10:18:54,059 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2024-10-24 10:18:54,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-24 10:18:54,060 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 10:18:54,060 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 10:18:54,064 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 [2024-10-24 10:18:54,261 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 [2024-10-24 10:18:54,261 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 10:18:54,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 10:18:54,261 INFO L85 PathProgramCache]: Analyzing trace with hash -2039779931, now seen corresponding path program 1 times [2024-10-24 10:18:54,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 10:18:54,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113079473] [2024-10-24 10:18:54,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 10:18:54,262 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 [2024-10-24 10:18:54,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 10:18:54,269 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) [2024-10-24 10:18:54,270 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 [2024-10-24 10:18:54,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:18:54,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 10:18:54,303 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 10:18:55,022 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 10:18:55,022 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 10:18:55,023 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 10:18:55,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113079473] [2024-10-24 10:18:55,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [113079473] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 10:18:55,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 10:18:55,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 10:18:55,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078326579] [2024-10-24 10:18:55,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 10:18:55,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 10:18:55,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 10:18:55,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 10:18:55,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 10:18:55,024 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-10-24 10:18:55,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 10:18:55,072 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2024-10-24 10:18:55,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 10:18:55,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 40 [2024-10-24 10:18:55,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 10:18:55,073 INFO L225 Difference]: With dead ends: 30 [2024-10-24 10:18:55,073 INFO L226 Difference]: Without dead ends: 0 [2024-10-24 10:18:55,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 10:18:55,074 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 7 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 10:18:55,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 62 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 10:18:55,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-24 10:18:55,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-24 10:18:55,075 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) [2024-10-24 10:18:55,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-24 10:18:55,076 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2024-10-24 10:18:55,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 10:18:55,076 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-24 10:18:55,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-10-24 10:18:55,076 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-24 10:18:55,076 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-24 10:18:55,079 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-24 10:18:55,083 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 (4)] Ended with exit code 0 [2024-10-24 10:18:55,279 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 [2024-10-24 10:18:55,283 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-24 10:18:55,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-24 10:18:55,304 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 10:18:55,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:18:55 BoogieIcfgContainer [2024-10-24 10:18:55,337 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 10:18:55,353 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 10:18:55,355 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 10:18:55,355 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 10:18:55,356 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:18:50" (3/4) ... [2024-10-24 10:18:55,357 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 10:18:55,365 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-10-24 10:18:55,368 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-10-24 10:18:55,368 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-24 10:18:55,368 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-24 10:18:55,371 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-24 10:18:55,441 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 10:18:55,442 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 10:18:55,442 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 10:18:55,442 INFO L158 Benchmark]: Toolchain (without parser) took 5687.07ms. Allocated memory was 67.1MB in the beginning and 438.3MB in the end (delta: 371.2MB). Free memory was 35.0MB in the beginning and 409.7MB in the end (delta: -374.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 10:18:55,442 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 48.2MB. Free memory was 28.9MB in the beginning and 28.8MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 10:18:55,442 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.33ms. Allocated memory is still 67.1MB. Free memory was 34.8MB in the beginning and 39.7MB in the end (delta: -4.8MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2024-10-24 10:18:55,443 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.64ms. Allocated memory is still 67.1MB. Free memory was 39.6MB in the beginning and 37.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 10:18:55,443 INFO L158 Benchmark]: Boogie Preprocessor took 48.55ms. Allocated memory is still 67.1MB. Free memory was 37.8MB in the beginning and 35.7MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 10:18:55,443 INFO L158 Benchmark]: RCFGBuilder took 356.52ms. Allocated memory is still 67.1MB. Free memory was 35.7MB in the beginning and 38.9MB in the end (delta: -3.2MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2024-10-24 10:18:55,443 INFO L158 Benchmark]: TraceAbstraction took 4867.39ms. Allocated memory was 67.1MB in the beginning and 438.3MB in the end (delta: 371.2MB). Free memory was 38.1MB in the beginning and 415.0MB in the end (delta: -376.9MB). Peak memory consumption was 148.4MB. Max. memory is 16.1GB. [2024-10-24 10:18:55,443 INFO L158 Benchmark]: Witness Printer took 88.36ms. Allocated memory is still 438.3MB. Free memory was 414.5MB in the beginning and 409.7MB in the end (delta: 4.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 10:18:55,444 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 48.2MB. Free memory was 28.9MB in the beginning and 28.8MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 270.33ms. Allocated memory is still 67.1MB. Free memory was 34.8MB in the beginning and 39.7MB in the end (delta: -4.8MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.64ms. Allocated memory is still 67.1MB. Free memory was 39.6MB in the beginning and 37.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.55ms. Allocated memory is still 67.1MB. Free memory was 37.8MB in the beginning and 35.7MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 356.52ms. Allocated memory is still 67.1MB. Free memory was 35.7MB in the beginning and 38.9MB in the end (delta: -3.2MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * TraceAbstraction took 4867.39ms. Allocated memory was 67.1MB in the beginning and 438.3MB in the end (delta: 371.2MB). Free memory was 38.1MB in the beginning and 415.0MB in the end (delta: -376.9MB). Peak memory consumption was 148.4MB. Max. memory is 16.1GB. * Witness Printer took 88.36ms. Allocated memory is still 438.3MB. Free memory was 414.5MB in the beginning and 409.7MB in the end (delta: 4.8MB). Peak memory consumption was 2.1MB. 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, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 3, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 192 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 117 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 95 IncrementalHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 75 mSDtfsCounter, 95 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 119 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 183 SizeOfPredicates, 18 NumberOfNonLiveVariables, 214 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 180/180 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: 59]: 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))) RESULT: Ultimate proved your program to be correct! [2024-10-24 10:18:55,467 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