./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_loopvsstraightlinecode_25-1loop_file-29.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d 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_loopvsstraightlinecode_25-1loop_file-29.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 ebd450d45b6e74a7932eec9848ae0cf358cd00d24cc83ea5ec60a19fac36ea9d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 04:06:56,091 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 04:06:56,178 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-13 04:06:56,183 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 04:06:56,185 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 04:06:56,212 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 04:06:56,212 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 04:06:56,213 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 04:06:56,213 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 04:06:56,215 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 04:06:56,215 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 04:06:56,216 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 04:06:56,216 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 04:06:56,217 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 04:06:56,217 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 04:06:56,219 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 04:06:56,219 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 04:06:56,219 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 04:06:56,220 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 04:06:56,220 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 04:06:56,220 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 04:06:56,223 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 04:06:56,223 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 04:06:56,224 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 04:06:56,224 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 04:06:56,224 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 04:06:56,225 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 04:06:56,225 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 04:06:56,225 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 04:06:56,225 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 04:06:56,225 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 04:06:56,226 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 04:06:56,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 04:06:56,226 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 04:06:56,226 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 04:06:56,227 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 04:06:56,227 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 04:06:56,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 04:06:56,228 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 04:06:56,228 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 04:06:56,228 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 04:06:56,229 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 04:06:56,229 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebd450d45b6e74a7932eec9848ae0cf358cd00d24cc83ea5ec60a19fac36ea9d [2024-10-13 04:06:56,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 04:06:56,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 04:06:56,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 04:06:56,490 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 04:06:56,490 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 04:06:56,491 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-29.i [2024-10-13 04:06:57,914 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 04:06:58,109 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 04:06:58,109 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-29.i [2024-10-13 04:06:58,120 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ca356fbc/929fe588d10140c3aa93e14ee8ea37cd/FLAG09cc43cc6 [2024-10-13 04:06:58,141 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ca356fbc/929fe588d10140c3aa93e14ee8ea37cd [2024-10-13 04:06:58,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 04:06:58,145 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 04:06:58,148 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 04:06:58,148 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 04:06:58,154 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 04:06:58,155 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:06:58" (1/1) ... [2024-10-13 04:06:58,156 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ef90b56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:06:58, skipping insertion in model container [2024-10-13 04:06:58,156 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:06:58" (1/1) ... [2024-10-13 04:06:58,183 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 04:06:58,350 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_loopvsstraightlinecode_25-1loop_file-29.i[915,928] [2024-10-13 04:06:58,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 04:06:58,413 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 04:06:58,430 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_loopvsstraightlinecode_25-1loop_file-29.i[915,928] [2024-10-13 04:06:58,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 04:06:58,477 INFO L204 MainTranslator]: Completed translation [2024-10-13 04:06:58,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:06:58 WrapperNode [2024-10-13 04:06:58,477 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 04:06:58,478 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 04:06:58,478 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 04:06:58,479 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 04:06:58,488 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:06:58" (1/1) ... [2024-10-13 04:06:58,495 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:06:58" (1/1) ... [2024-10-13 04:06:58,523 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 88 [2024-10-13 04:06:58,523 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 04:06:58,524 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 04:06:58,524 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 04:06:58,524 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 04:06:58,537 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:06:58" (1/1) ... [2024-10-13 04:06:58,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:06:58" (1/1) ... [2024-10-13 04:06:58,539 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:06:58" (1/1) ... [2024-10-13 04:06:58,553 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]. [2024-10-13 04:06:58,553 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:06:58" (1/1) ... [2024-10-13 04:06:58,553 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:06:58" (1/1) ... [2024-10-13 04:06:58,558 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:06:58" (1/1) ... [2024-10-13 04:06:58,564 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:06:58" (1/1) ... [2024-10-13 04:06:58,566 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:06:58" (1/1) ... [2024-10-13 04:06:58,567 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:06:58" (1/1) ... [2024-10-13 04:06:58,570 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 04:06:58,571 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 04:06:58,571 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 04:06:58,571 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 04:06:58,572 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:06:58" (1/1) ... [2024-10-13 04:06:58,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 04:06:58,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 04:06:58,609 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) [2024-10-13 04:06:58,613 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 [2024-10-13 04:06:58,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 04:06:58,662 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 04:06:58,663 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 04:06:58,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 04:06:58,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 04:06:58,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 04:06:58,738 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 04:06:58,740 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 04:06:59,007 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-10-13 04:06:59,008 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 04:06:59,047 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 04:06:59,047 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 04:06:59,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:06:59 BoogieIcfgContainer [2024-10-13 04:06:59,048 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 04:06:59,050 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 04:06:59,050 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 04:06:59,053 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 04:06:59,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 04:06:58" (1/3) ... [2024-10-13 04:06:59,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0df16e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:06:59, skipping insertion in model container [2024-10-13 04:06:59,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:06:58" (2/3) ... [2024-10-13 04:06:59,054 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0df16e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:06:59, skipping insertion in model container [2024-10-13 04:06:59,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:06:59" (3/3) ... [2024-10-13 04:06:59,055 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-29.i [2024-10-13 04:06:59,070 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 04:06:59,071 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 04:06:59,124 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 04:06:59,132 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;@52648ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 04:06:59,132 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 04:06:59,136 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 24 states have internal predecessors, (34), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-13 04:06:59,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-13 04:06:59,147 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 04:06:59,147 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 04:06:59,148 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 04:06:59,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 04:06:59,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1313351656, now seen corresponding path program 1 times [2024-10-13 04:06:59,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 04:06:59,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679126014] [2024-10-13 04:06:59,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 04:06:59,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 04:06:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 04:06:59,381 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 04:06:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 04:06:59,516 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 04:06:59,521 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 04:06:59,522 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-13 04:06:59,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 04:06:59,529 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-13 04:06:59,596 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 04:06:59,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 04:06:59 BoogieIcfgContainer [2024-10-13 04:06:59,599 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 04:06:59,603 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 04:06:59,603 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 04:06:59,603 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 04:06:59,604 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:06:59" (3/4) ... [2024-10-13 04:06:59,605 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-13 04:06:59,607 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 04:06:59,608 INFO L158 Benchmark]: Toolchain (without parser) took 1462.94ms. Allocated memory was 167.8MB in the beginning and 218.1MB in the end (delta: 50.3MB). Free memory was 117.7MB in the beginning and 176.1MB in the end (delta: -58.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 04:06:59,608 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 167.8MB. Free memory is still 129.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 04:06:59,608 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.58ms. Allocated memory is still 167.8MB. Free memory was 117.2MB in the beginning and 104.0MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-13 04:06:59,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.98ms. Allocated memory is still 167.8MB. Free memory was 104.0MB in the beginning and 101.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 04:06:59,611 INFO L158 Benchmark]: Boogie Preprocessor took 46.07ms. Allocated memory is still 167.8MB. Free memory was 101.4MB in the beginning and 98.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 04:06:59,612 INFO L158 Benchmark]: RCFGBuilder took 477.00ms. Allocated memory is still 167.8MB. Free memory was 98.3MB in the beginning and 81.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-13 04:06:59,612 INFO L158 Benchmark]: TraceAbstraction took 549.16ms. Allocated memory was 167.8MB in the beginning and 218.1MB in the end (delta: 50.3MB). Free memory was 81.0MB in the beginning and 177.2MB in the end (delta: -96.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 04:06:59,613 INFO L158 Benchmark]: Witness Printer took 4.07ms. Allocated memory is still 218.1MB. Free memory was 177.2MB in the beginning and 176.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 04:06:59,617 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 167.8MB. Free memory is still 129.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.58ms. Allocated memory is still 167.8MB. Free memory was 117.2MB in the beginning and 104.0MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.98ms. Allocated memory is still 167.8MB. Free memory was 104.0MB in the beginning and 101.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.07ms. Allocated memory is still 167.8MB. Free memory was 101.4MB in the beginning and 98.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 477.00ms. Allocated memory is still 167.8MB. Free memory was 98.3MB in the beginning and 81.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 549.16ms. Allocated memory was 167.8MB in the beginning and 218.1MB in the end (delta: 50.3MB). Free memory was 81.0MB in the beginning and 177.2MB in the end (delta: -96.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.07ms. Allocated memory is still 218.1MB. Free memory was 177.2MB in the beginning and 176.1MB in the end (delta: 1.1MB). 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 76, overapproximation of someBinaryDOUBLEComparisonOperation at line 76. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 2.5; [L23] unsigned char var_1_2 = 0; [L24] float var_1_3 = 9.3; [L25] float var_1_4 = 3.4; [L26] unsigned short int var_1_5 = 32; [L27] unsigned short int var_1_6 = 10; [L28] unsigned short int var_1_7 = 64; [L29] unsigned short int var_1_8 = 16; [L30] unsigned short int var_1_9 = 1; [L80] isInitial = 1 [L81] FCALL initially() [L82] int k_loop; [L83] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_1=5/2, var_1_2=0, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L83] COND TRUE k_loop < 1 [L84] FCALL updateLastVariables() [L85] CALL updateVariables() [L56] var_1_2 = __VERIFIER_nondet_uchar() [L57] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L57] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_1=5/2, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L58] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L58] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L59] var_1_3 = __VERIFIER_nondet_float() [L60] CALL assume_abort_if_not((var_1_3 >= -922337.2036854765600e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L60] RET assume_abort_if_not((var_1_3 >= -922337.2036854765600e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L61] var_1_4 = __VERIFIER_nondet_float() [L62] CALL assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L62] RET assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L63] var_1_6 = __VERIFIER_nondet_ushort() [L64] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_7=64, var_1_8=16, var_1_9=1] [L64] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_7=64, var_1_8=16, var_1_9=1] [L65] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=0, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=0, var_1_7=64, var_1_8=16, var_1_9=1] [L65] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=0, var_1_7=64, var_1_8=16, var_1_9=1] [L66] var_1_7 = __VERIFIER_nondet_ushort() [L67] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=0, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=0, var_1_8=16, var_1_9=1] [L67] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=0, var_1_8=16, var_1_9=1] [L68] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=0, var_1_7=5, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=0, var_1_7=5, var_1_8=16, var_1_9=1] [L68] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=0, var_1_7=5, var_1_8=16, var_1_9=1] [L69] var_1_8 = __VERIFIER_nondet_ushort() [L70] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=0, var_1_7=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=0, var_1_7=5, var_1_9=1] [L70] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=0, var_1_7=5, var_1_9=1] [L71] CALL assume_abort_if_not(var_1_8 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=0, var_1_7=5, var_1_8=4, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=0, var_1_7=5, var_1_8=4, var_1_9=1] [L71] RET assume_abort_if_not(var_1_8 <= 65534) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=0, var_1_7=5, var_1_8=4, var_1_9=1] [L85] RET updateVariables() [L86] CALL step() [L34] COND TRUE \read(var_1_2) [L35] var_1_1 = var_1_3 VAL [isInitial=1, var_1_1=69, var_1_2=1, var_1_3=69, var_1_5=32, var_1_6=0, var_1_7=5, var_1_8=4, var_1_9=1] [L41] COND TRUE (var_1_1 + 8.125) > (var_1_1 * var_1_3) [L42] var_1_5 = (((((var_1_6 + var_1_7)) > (var_1_8)) ? ((var_1_6 + var_1_7)) : (var_1_8))) VAL [isInitial=1, var_1_1=69, var_1_2=1, var_1_3=69, var_1_5=5, var_1_6=0, var_1_7=5, var_1_8=4, var_1_9=1] [L46] signed long int stepLocal_0 = 5 * var_1_8; VAL [isInitial=1, stepLocal_0=20, var_1_1=69, var_1_2=1, var_1_3=69, var_1_5=5, var_1_6=0, var_1_7=5, var_1_8=4, var_1_9=1] [L47] COND FALSE !(((((var_1_3) < (var_1_1)) ? (var_1_3) : (var_1_1))) == var_1_1) VAL [isInitial=1, stepLocal_0=20, var_1_1=69, var_1_2=1, var_1_3=69, var_1_5=5, var_1_6=0, var_1_7=5, var_1_8=4, var_1_9=1] [L86] RET step() [L87] CALL, EXPR property() [L76-L77] return ((var_1_2 ? (var_1_1 == ((float) var_1_3)) : ((! (var_1_3 < var_1_4)) ? (var_1_1 == ((float) ((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))))) : 1)) && (((var_1_1 + 8.125) > (var_1_1 * var_1_3)) ? (var_1_5 == ((unsigned short int) (((((var_1_6 + var_1_7)) > (var_1_8)) ? ((var_1_6 + var_1_7)) : (var_1_8))))) : (var_1_5 == ((unsigned short int) var_1_8)))) && ((((((var_1_3) < (var_1_1)) ? (var_1_3) : (var_1_1))) == var_1_1) ? ((var_1_6 > (5 * var_1_8)) ? ((var_1_1 < (var_1_1 * 256.5f)) ? (var_1_9 == ((unsigned short int) var_1_6)) : 1) : 1) : 1) ; [L87] RET, EXPR property() [L87] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_1=69, var_1_2=1, var_1_3=69, var_1_5=5, var_1_6=0, var_1_7=5, var_1_8=4, var_1_9=1] [L19] reach_error() VAL [isInitial=1, var_1_1=69, var_1_2=1, var_1_3=69, var_1_5=5, var_1_6=0, var_1_7=5, var_1_8=4, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 10, 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=36occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 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 [2024-10-13 04:06:59,659 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_loopvsstraightlinecode_25-1loop_file-29.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 ebd450d45b6e74a7932eec9848ae0cf358cd00d24cc83ea5ec60a19fac36ea9d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 04:07:01,874 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 04:07:01,946 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-13 04:07:01,952 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 04:07:01,952 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 04:07:01,982 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 04:07:01,983 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 04:07:01,984 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 04:07:01,985 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 04:07:01,985 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 04:07:01,986 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 04:07:01,987 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 04:07:01,987 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 04:07:01,989 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 04:07:01,990 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 04:07:01,990 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 04:07:01,990 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 04:07:01,991 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 04:07:01,991 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 04:07:01,991 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 04:07:01,991 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 04:07:01,995 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 04:07:01,995 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 04:07:01,996 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 04:07:01,996 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-13 04:07:01,996 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 04:07:01,996 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-13 04:07:01,997 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 04:07:01,997 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 04:07:01,997 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 04:07:01,997 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 04:07:01,997 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 04:07:01,998 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 04:07:01,998 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 04:07:02,002 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 04:07:02,005 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 04:07:02,005 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 04:07:02,006 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 04:07:02,006 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-13 04:07:02,006 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-13 04:07:02,006 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 04:07:02,007 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 04:07:02,007 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 04:07:02,007 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 04:07:02,007 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-13 04:07:02,008 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebd450d45b6e74a7932eec9848ae0cf358cd00d24cc83ea5ec60a19fac36ea9d [2024-10-13 04:07:02,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 04:07:02,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 04:07:02,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 04:07:02,358 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 04:07:02,358 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 04:07:02,360 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-29.i [2024-10-13 04:07:03,905 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 04:07:04,123 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 04:07:04,125 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-29.i [2024-10-13 04:07:04,136 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e45727f62/b37c4b3d3c0c44c5ba0ba7246a8f5b78/FLAGdd212dc63 [2024-10-13 04:07:04,493 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e45727f62/b37c4b3d3c0c44c5ba0ba7246a8f5b78 [2024-10-13 04:07:04,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 04:07:04,497 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 04:07:04,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 04:07:04,500 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 04:07:04,505 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 04:07:04,506 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:07:04" (1/1) ... [2024-10-13 04:07:04,509 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cc3cccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:07:04, skipping insertion in model container [2024-10-13 04:07:04,509 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:07:04" (1/1) ... [2024-10-13 04:07:04,544 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 04:07:04,720 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_loopvsstraightlinecode_25-1loop_file-29.i[915,928] [2024-10-13 04:07:04,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 04:07:04,781 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 04:07:04,796 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_loopvsstraightlinecode_25-1loop_file-29.i[915,928] [2024-10-13 04:07:04,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 04:07:04,837 INFO L204 MainTranslator]: Completed translation [2024-10-13 04:07:04,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:07:04 WrapperNode [2024-10-13 04:07:04,838 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 04:07:04,840 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 04:07:04,840 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 04:07:04,841 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 04:07:04,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:07:04" (1/1) ... [2024-10-13 04:07:04,861 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:07:04" (1/1) ... [2024-10-13 04:07:04,887 INFO L138 Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 88 [2024-10-13 04:07:04,888 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 04:07:04,890 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 04:07:04,891 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 04:07:04,891 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 04:07:04,902 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:07:04" (1/1) ... [2024-10-13 04:07:04,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:07:04" (1/1) ... [2024-10-13 04:07:04,907 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:07:04" (1/1) ... [2024-10-13 04:07:04,923 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]. [2024-10-13 04:07:04,925 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:07:04" (1/1) ... [2024-10-13 04:07:04,925 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:07:04" (1/1) ... [2024-10-13 04:07:04,934 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:07:04" (1/1) ... [2024-10-13 04:07:04,941 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:07:04" (1/1) ... [2024-10-13 04:07:04,946 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:07:04" (1/1) ... [2024-10-13 04:07:04,950 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:07:04" (1/1) ... [2024-10-13 04:07:04,953 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 04:07:04,954 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 04:07:04,954 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 04:07:04,954 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 04:07:04,956 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:07:04" (1/1) ... [2024-10-13 04:07:04,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 04:07:04,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 04:07:04,991 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) [2024-10-13 04:07:04,997 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 [2024-10-13 04:07:05,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 04:07:05,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-13 04:07:05,057 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 04:07:05,057 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 04:07:05,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 04:07:05,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 04:07:05,140 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 04:07:05,143 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 04:07:11,228 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-10-13 04:07:11,228 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 04:07:11,279 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 04:07:11,281 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 04:07:11,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:07:11 BoogieIcfgContainer [2024-10-13 04:07:11,282 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 04:07:11,283 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 04:07:11,284 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 04:07:11,287 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 04:07:11,288 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 04:07:04" (1/3) ... [2024-10-13 04:07:11,289 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10bd7a94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:07:11, skipping insertion in model container [2024-10-13 04:07:11,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:07:04" (2/3) ... [2024-10-13 04:07:11,290 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10bd7a94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:07:11, skipping insertion in model container [2024-10-13 04:07:11,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:07:11" (3/3) ... [2024-10-13 04:07:11,292 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-29.i [2024-10-13 04:07:11,307 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 04:07:11,308 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 04:07:11,378 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 04:07:11,386 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;@1c86c054, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 04:07:11,386 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 04:07:11,391 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 24 states have internal predecessors, (34), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-13 04:07:11,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-13 04:07:11,401 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 04:07:11,401 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 04:07:11,403 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 04:07:11,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 04:07:11,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1313351656, now seen corresponding path program 1 times [2024-10-13 04:07:11,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 04:07:11,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353123563] [2024-10-13 04:07:11,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 04:07:11,423 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 [2024-10-13 04:07:11,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 04:07:11,427 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) [2024-10-13 04:07:11,429 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 [2024-10-13 04:07:11,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:07:11,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 04:07:11,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 04:07:13,232 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 6 proven. 84 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-10-13 04:07:13,232 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 04:07:13,709 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-10-13 04:07:13,710 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 04:07:13,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1353123563] [2024-10-13 04:07:13,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1353123563] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 04:07:13,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 04:07:13,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-10-13 04:07:13,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412303356] [2024-10-13 04:07:13,714 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 04:07:13,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 04:07:13,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 04:07:13,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 04:07:13,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-13 04:07:13,742 INFO L87 Difference]: Start difference. First operand has 36 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 24 states have internal predecessors, (34), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 4 states have call successors, (20), 3 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2024-10-13 04:07:15,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-13 04:07:18,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-13 04:07:19,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-13 04:07:21,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-13 04:07:23,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-13 04:07:25,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-13 04:07:25,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 04:07:25,694 INFO L93 Difference]: Finished difference Result 116 states and 181 transitions. [2024-10-13 04:07:25,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-13 04:07:25,697 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 4 states have call successors, (20), 3 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 65 [2024-10-13 04:07:25,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 04:07:25,704 INFO L225 Difference]: With dead ends: 116 [2024-10-13 04:07:25,704 INFO L226 Difference]: Without dead ends: 75 [2024-10-13 04:07:25,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=185, Invalid=321, Unknown=0, NotChecked=0, Total=506 [2024-10-13 04:07:25,709 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 158 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2024-10-13 04:07:25,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 94 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2024-10-13 04:07:25,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-10-13 04:07:25,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 51. [2024-10-13 04:07:25,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 36 states have internal predecessors, (44), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-13 04:07:25,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 68 transitions. [2024-10-13 04:07:25,749 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 68 transitions. Word has length 65 [2024-10-13 04:07:25,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 04:07:25,750 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 68 transitions. [2024-10-13 04:07:25,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 4 states have call successors, (20), 3 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2024-10-13 04:07:25,750 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 68 transitions. [2024-10-13 04:07:25,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-13 04:07:25,752 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 04:07:25,753 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 04:07:25,765 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 [2024-10-13 04:07:25,956 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 [2024-10-13 04:07:25,957 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 04:07:25,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 04:07:25,958 INFO L85 PathProgramCache]: Analyzing trace with hash -2073893193, now seen corresponding path program 1 times [2024-10-13 04:07:25,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 04:07:25,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849862783] [2024-10-13 04:07:25,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 04:07:25,959 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 [2024-10-13 04:07:25,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 04:07:25,963 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) [2024-10-13 04:07:25,963 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 [2024-10-13 04:07:26,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:07:26,218 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-13 04:07:26,223 INFO L278 TraceCheckSpWp]: Computing forward predicates...