./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-75.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-75.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 78cb2a64d376bc24725ded4a0eb9b996b458809ee92f4059e872faf6b1604d1d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 16:36:17,320 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 16:36:17,361 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 16:36:17,364 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 16:36:17,365 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 16:36:17,379 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 16:36:17,380 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 16:36:17,380 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 16:36:17,380 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 16:36:17,381 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 16:36:17,381 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 16:36:17,381 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 16:36:17,382 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 16:36:17,382 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 16:36:17,382 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 16:36:17,383 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 16:36:17,383 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 16:36:17,383 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 16:36:17,383 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 16:36:17,384 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 16:36:17,384 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 16:36:17,384 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 16:36:17,385 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 16:36:17,385 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 16:36:17,385 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 16:36:17,385 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 16:36:17,386 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 16:36:17,386 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 16:36:17,386 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 16:36:17,386 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 16:36:17,387 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 16:36:17,387 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 16:36:17,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 16:36:17,387 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 16:36:17,387 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 16:36:17,388 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 16:36:17,388 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 16:36:17,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 16:36:17,388 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 16:36:17,388 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 16:36:17,389 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 16:36:17,389 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 16:36:17,389 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78cb2a64d376bc24725ded4a0eb9b996b458809ee92f4059e872faf6b1604d1d [2024-11-16 16:36:17,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 16:36:17,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 16:36:17,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 16:36:17,588 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 16:36:17,589 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 16:36:17,590 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-75.i [2024-11-16 16:36:18,955 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 16:36:19,131 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 16:36:19,132 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-75.i [2024-11-16 16:36:19,142 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac2d3530a/40eab83b628c4a398866740e4da15413/FLAGfed4990f2 [2024-11-16 16:36:19,156 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac2d3530a/40eab83b628c4a398866740e4da15413 [2024-11-16 16:36:19,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 16:36:19,161 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 16:36:19,162 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 16:36:19,163 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 16:36:19,167 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 16:36:19,168 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:36:19" (1/1) ... [2024-11-16 16:36:19,169 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63c30dc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:19, skipping insertion in model container [2024-11-16 16:36:19,169 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:36:19" (1/1) ... [2024-11-16 16:36:19,193 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 16:36:19,332 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-75.i[915,928] [2024-11-16 16:36:19,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 16:36:19,410 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 16:36:19,419 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-75.i[915,928] [2024-11-16 16:36:19,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 16:36:19,460 INFO L204 MainTranslator]: Completed translation [2024-11-16 16:36:19,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:19 WrapperNode [2024-11-16 16:36:19,460 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 16:36:19,465 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 16:36:19,465 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 16:36:19,465 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 16:36:19,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:19" (1/1) ... [2024-11-16 16:36:19,485 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:19" (1/1) ... [2024-11-16 16:36:19,511 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 99 [2024-11-16 16:36:19,511 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 16:36:19,512 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 16:36:19,512 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 16:36:19,512 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 16:36:19,524 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:19" (1/1) ... [2024-11-16 16:36:19,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:19" (1/1) ... [2024-11-16 16:36:19,529 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:19" (1/1) ... [2024-11-16 16:36:19,543 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 16:36:19,544 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:19" (1/1) ... [2024-11-16 16:36:19,544 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:19" (1/1) ... [2024-11-16 16:36:19,549 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:19" (1/1) ... [2024-11-16 16:36:19,549 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:19" (1/1) ... [2024-11-16 16:36:19,550 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:19" (1/1) ... [2024-11-16 16:36:19,551 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:19" (1/1) ... [2024-11-16 16:36:19,553 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 16:36:19,554 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 16:36:19,554 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 16:36:19,554 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 16:36:19,555 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:19" (1/1) ... [2024-11-16 16:36:19,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 16:36:19,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 16:36:19,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 16:36:19,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 16:36:19,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 16:36:19,625 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 16:36:19,626 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 16:36:19,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 16:36:19,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 16:36:19,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 16:36:19,687 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 16:36:19,688 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 16:36:19,908 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-16 16:36:19,909 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 16:36:19,923 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 16:36:19,924 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 16:36:19,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:36:19 BoogieIcfgContainer [2024-11-16 16:36:19,924 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 16:36:19,927 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 16:36:19,927 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 16:36:19,930 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 16:36:19,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:36:19" (1/3) ... [2024-11-16 16:36:19,935 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eba91bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:36:19, skipping insertion in model container [2024-11-16 16:36:19,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:19" (2/3) ... [2024-11-16 16:36:19,935 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eba91bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:36:19, skipping insertion in model container [2024-11-16 16:36:19,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:36:19" (3/3) ... [2024-11-16 16:36:19,937 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-75.i [2024-11-16 16:36:19,952 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 16:36:19,952 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 16:36:20,000 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 16:36:20,006 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;@1770add8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 16:36:20,007 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 16:36:20,011 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 32 states have (on average 1.25) internal successors, (40), 33 states have internal predecessors, (40), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-16 16:36:20,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 16:36:20,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:36:20,024 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:36:20,025 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:36:20,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:36:20,031 INFO L85 PathProgramCache]: Analyzing trace with hash -165187612, now seen corresponding path program 1 times [2024-11-16 16:36:20,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:36:20,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552323667] [2024-11-16 16:36:20,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:36:20,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:36:20,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:36:20,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:36:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:36:20,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:36:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:36:20,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:36:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:36:20,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:36:20,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:36:20,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:36:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:36:20,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:36:20,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:36:20,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:36:20,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:36:20,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:36:20,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:36:20,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:36:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:36:20,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:36:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:36:20,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:36:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:36:20,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 16:36:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:36:20,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 16:36:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:36:20,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 16:36:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:36:20,292 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 16:36:20,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:36:20,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552323667] [2024-11-16 16:36:20,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552323667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:36:20,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:36:20,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 16:36:20,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316335713] [2024-11-16 16:36:20,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:36:20,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 16:36:20,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:36:20,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 16:36:20,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 16:36:20,325 INFO L87 Difference]: Start difference. First operand has 49 states, 32 states have (on average 1.25) internal successors, (40), 33 states have internal predecessors, (40), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 16:36:20,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:36:20,351 INFO L93 Difference]: Finished difference Result 90 states and 143 transitions. [2024-11-16 16:36:20,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 16:36:20,353 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 94 [2024-11-16 16:36:20,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:36:20,360 INFO L225 Difference]: With dead ends: 90 [2024-11-16 16:36:20,360 INFO L226 Difference]: Without dead ends: 44 [2024-11-16 16:36:20,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 16:36:20,367 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 16:36:20,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 16:36:20,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-16 16:36:20,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-16 16:36:20,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 28 states have internal predecessors, (32), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-16 16:36:20,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2024-11-16 16:36:20,409 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 94 [2024-11-16 16:36:20,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:36:20,410 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2024-11-16 16:36:20,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 16:36:20,410 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2024-11-16 16:36:20,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 16:36:20,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:36:20,415 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:36:20,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 16:36:20,416 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:36:20,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:36:20,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1329610248, now seen corresponding path program 1 times [2024-11-16 16:36:20,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:36:20,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947038800] [2024-11-16 16:36:20,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:36:20,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:36:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-16 16:36:20,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [699610133] [2024-11-16 16:36:20,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:36:20,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 16:36:20,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 16:36:20,590 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 16:36:20,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 16:36:20,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:36:20,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-16 16:36:20,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 16:36:20,954 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 16:36:20,958 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 16:36:20,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:36:20,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947038800] [2024-11-16 16:36:20,959 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-16 16:36:20,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699610133] [2024-11-16 16:36:20,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699610133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:36:20,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:36:20,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 16:36:20,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2641632] [2024-11-16 16:36:20,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:36:20,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 16:36:20,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:36:20,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 16:36:20,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 16:36:20,965 INFO L87 Difference]: Start difference. First operand 44 states and 60 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 16:36:21,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:36:21,091 INFO L93 Difference]: Finished difference Result 128 states and 176 transitions. [2024-11-16 16:36:21,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 16:36:21,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 94 [2024-11-16 16:36:21,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:36:21,094 INFO L225 Difference]: With dead ends: 128 [2024-11-16 16:36:21,095 INFO L226 Difference]: Without dead ends: 87 [2024-11-16 16:36:21,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-16 16:36:21,096 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 33 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 16:36:21,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 187 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 16:36:21,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-16 16:36:21,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 75. [2024-11-16 16:36:21,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 44 states have (on average 1.0909090909090908) internal successors, (48), 44 states have internal predecessors, (48), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-16 16:36:21,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 104 transitions. [2024-11-16 16:36:21,127 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 104 transitions. Word has length 94 [2024-11-16 16:36:21,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:36:21,127 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 104 transitions. [2024-11-16 16:36:21,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 16:36:21,127 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 104 transitions. [2024-11-16 16:36:21,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 16:36:21,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:36:21,131 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:36:21,145 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 16:36:21,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 16:36:21,332 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:36:21,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:36:21,333 INFO L85 PathProgramCache]: Analyzing trace with hash -477844215, now seen corresponding path program 1 times [2024-11-16 16:36:21,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:36:21,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291602141] [2024-11-16 16:36:21,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:36:21,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:36:21,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-16 16:36:21,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [485657501] [2024-11-16 16:36:21,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:36:21,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 16:36:21,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 16:36:21,445 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 16:36:21,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 16:36:21,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 16:36:21,547 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 16:36:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 16:36:21,619 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 16:36:21,620 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 16:36:21,620 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 16:36:21,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 16:36:21,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-16 16:36:21,825 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-16 16:36:21,876 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 16:36:21,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:36:21 BoogieIcfgContainer [2024-11-16 16:36:21,881 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 16:36:21,881 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 16:36:21,881 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 16:36:21,882 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 16:36:21,882 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:36:19" (3/4) ... [2024-11-16 16:36:21,884 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-16 16:36:21,885 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 16:36:21,885 INFO L158 Benchmark]: Toolchain (without parser) took 2724.15ms. Allocated memory was 209.7MB in the beginning and 310.4MB in the end (delta: 100.7MB). Free memory was 148.0MB in the beginning and 210.8MB in the end (delta: -62.8MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2024-11-16 16:36:21,886 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 104.9MB. Free memory is still 53.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 16:36:21,886 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.50ms. Allocated memory is still 209.7MB. Free memory was 147.5MB in the beginning and 169.4MB in the end (delta: -21.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-16 16:36:21,886 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.29ms. Allocated memory is still 209.7MB. Free memory was 169.4MB in the beginning and 165.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 16:36:21,887 INFO L158 Benchmark]: Boogie Preprocessor took 41.54ms. Allocated memory is still 209.7MB. Free memory was 165.7MB in the beginning and 160.2MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-16 16:36:21,887 INFO L158 Benchmark]: IcfgBuilder took 370.69ms. Allocated memory is still 209.7MB. Free memory was 160.2MB in the beginning and 141.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-16 16:36:21,887 INFO L158 Benchmark]: TraceAbstraction took 1954.03ms. Allocated memory was 209.7MB in the beginning and 310.4MB in the end (delta: 100.7MB). Free memory was 141.4MB in the beginning and 210.8MB in the end (delta: -69.5MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2024-11-16 16:36:21,888 INFO L158 Benchmark]: Witness Printer took 3.55ms. Allocated memory is still 310.4MB. Free memory is still 210.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 16:36:21,889 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 104.9MB. Free memory is still 53.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 302.50ms. Allocated memory is still 209.7MB. Free memory was 147.5MB in the beginning and 169.4MB in the end (delta: -21.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.29ms. Allocated memory is still 209.7MB. Free memory was 169.4MB in the beginning and 165.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.54ms. Allocated memory is still 209.7MB. Free memory was 165.7MB in the beginning and 160.2MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * IcfgBuilder took 370.69ms. Allocated memory is still 209.7MB. Free memory was 160.2MB in the beginning and 141.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1954.03ms. Allocated memory was 209.7MB in the beginning and 310.4MB in the end (delta: 100.7MB). Free memory was 141.4MB in the beginning and 210.8MB in the end (delta: -69.5MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. * Witness Printer took 3.55ms. Allocated memory is still 310.4MB. Free memory is still 210.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 85, overapproximation of someUnaryDOUBLEoperation at line 27, overapproximation of someBinaryDOUBLEComparisonOperation at line 85, overapproximation of someBinaryArithmeticFLOAToperation at line 51. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 32; [L23] unsigned char var_1_7 = 128; [L24] unsigned char var_1_8 = 64; [L25] unsigned char var_1_9 = 100; [L26] unsigned char var_1_10 = 1; [L27] float var_1_11 = -0.6; [L28] unsigned char var_1_12 = 1; [L29] double var_1_13 = 999999999999999.2; [L30] float var_1_14 = 50.25; [L31] float var_1_15 = 15.5; [L32] float var_1_16 = 128.5; [L33] unsigned char var_1_17 = 0; [L34] unsigned char last_1_var_1_17 = 0; VAL [isInitial=0, last_1_var_1_17=0, var_1_10=1, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=128, var_1_8=64, var_1_9=100] [L89] isInitial = 1 [L90] FCALL initially() [L91] COND TRUE 1 [L92] CALL updateLastVariables() [L82] last_1_var_1_17 = var_1_17 VAL [isInitial=1, last_1_var_1_17=0, var_1_10=1, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=128, var_1_8=64, var_1_9=100] [L92] RET updateLastVariables() [L93] CALL updateVariables() [L57] var_1_7 = __VERIFIER_nondet_uchar() [L58] CALL assume_abort_if_not(var_1_7 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=1, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=64, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=1, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=64, var_1_9=100] [L58] RET assume_abort_if_not(var_1_7 >= 127) VAL [isInitial=1, last_1_var_1_17=0, var_1_10=1, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=64, var_1_9=100] [L59] CALL assume_abort_if_not(var_1_7 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=1, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=64, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=1, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=64, var_1_9=100] [L59] RET assume_abort_if_not(var_1_7 <= 254) VAL [isInitial=1, last_1_var_1_17=0, var_1_10=1, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=64, var_1_9=100] [L60] var_1_8 = __VERIFIER_nondet_uchar() [L61] CALL assume_abort_if_not(var_1_8 >= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=1, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=1, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=100] [L61] RET assume_abort_if_not(var_1_8 >= 63) VAL [isInitial=1, last_1_var_1_17=0, var_1_10=1, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=100] [L62] CALL assume_abort_if_not(var_1_8 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=1, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=1, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=100] [L62] RET assume_abort_if_not(var_1_8 <= 127) VAL [isInitial=1, last_1_var_1_17=0, var_1_10=1, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=100] [L63] var_1_9 = __VERIFIER_nondet_uchar() [L64] CALL assume_abort_if_not(var_1_9 >= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=1, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=1, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L64] RET assume_abort_if_not(var_1_9 >= 63) VAL [isInitial=1, last_1_var_1_17=0, var_1_10=1, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L65] CALL assume_abort_if_not(var_1_9 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=1, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=1, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L65] RET assume_abort_if_not(var_1_9 <= 127) VAL [isInitial=1, last_1_var_1_17=0, var_1_10=1, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L66] var_1_10 = __VERIFIER_nondet_uchar() [L67] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L67] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_17=0, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L68] CALL assume_abort_if_not(var_1_10 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L68] RET assume_abort_if_not(var_1_10 <= 63) VAL [isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_12=1, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L69] var_1_12 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L70] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L71] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_12=0, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_12=0, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L71] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_12=0, var_1_13=4999999999999996/5, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L72] var_1_13 = __VERIFIER_nondet_double() [L73] CALL assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_12=0, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_12=0, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L73] RET assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_12=0, var_1_14=201/4, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L74] var_1_14 = __VERIFIER_nondet_float() [L75] CALL assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_12=0, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_12=0, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L75] RET assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_12=0, var_1_15=31/2, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L76] var_1_15 = __VERIFIER_nondet_float() [L77] CALL assume_abort_if_not((var_1_15 >= -461168.6018427382800e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_12=0, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_12=0, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L77] RET assume_abort_if_not((var_1_15 >= -461168.6018427382800e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_12=0, var_1_16=257/2, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L78] var_1_16 = __VERIFIER_nondet_float() [L79] CALL assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_12=0, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_12=0, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L79] RET assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_12=0, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L93] RET updateVariables() [L94] CALL step() [L38] signed long int stepLocal_0 = (last_1_var_1_17 * last_1_var_1_17) * last_1_var_1_17; VAL [isInitial=1, last_1_var_1_17=0, stepLocal_0=0, var_1_10=319, var_1_12=0, var_1_17=0, var_1_1=32, var_1_7=127, var_1_8=63, var_1_9=127] [L39] COND FALSE !(stepLocal_0 < ((((last_1_var_1_17) > (last_1_var_1_17)) ? (last_1_var_1_17) : (last_1_var_1_17)))) [L42] var_1_1 = var_1_8 VAL [isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_12=0, var_1_17=0, var_1_1=63, var_1_7=127, var_1_8=63, var_1_9=127] [L44] unsigned char stepLocal_1 = var_1_1; VAL [isInitial=1, last_1_var_1_17=0, stepLocal_1=63, var_1_10=319, var_1_12=0, var_1_17=0, var_1_1=63, var_1_7=127, var_1_8=63, var_1_9=127] [L45] COND TRUE stepLocal_1 >= var_1_1 [L46] var_1_17 = (((((var_1_7) < 0 ) ? -(var_1_7) : (var_1_7))) - (((((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10))) < 0 ) ? -((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10))) : ((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10)))))) VAL [isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_12=0, var_1_17=0, var_1_1=63, var_1_7=127, var_1_8=63, var_1_9=127] [L50] COND TRUE var_1_12 || ((var_1_13 * 49.25) == 32.8) [L51] var_1_11 = (((((var_1_14 + var_1_15)) > (var_1_16)) ? ((var_1_14 + var_1_15)) : (var_1_16))) VAL [isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_11=2, var_1_12=0, var_1_16=0, var_1_17=0, var_1_1=63, var_1_7=127, var_1_8=63, var_1_9=127] [L94] RET step() [L95] CALL, EXPR property() [L85-L86] return (((((last_1_var_1_17 * last_1_var_1_17) * last_1_var_1_17) < ((((last_1_var_1_17) > (last_1_var_1_17)) ? (last_1_var_1_17) : (last_1_var_1_17)))) ? (var_1_1 == ((unsigned char) (var_1_7 - (((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))) - var_1_10)))) : (var_1_1 == ((unsigned char) var_1_8))) && ((var_1_12 || ((var_1_13 * 49.25) == 32.8)) ? (var_1_11 == ((float) (((((var_1_14 + var_1_15)) > (var_1_16)) ? ((var_1_14 + var_1_15)) : (var_1_16))))) : (var_1_11 == ((float) var_1_15)))) && ((var_1_1 >= var_1_1) ? (var_1_17 == ((unsigned char) (((((var_1_7) < 0 ) ? -(var_1_7) : (var_1_7))) - (((((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10))) < 0 ) ? -((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10))) : ((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10)))))))) : (var_1_17 == ((unsigned char) var_1_8))) ; VAL [\result=0, isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_11=2, var_1_12=0, var_1_16=0, var_1_17=0, var_1_1=63, var_1_7=127, var_1_8=63, var_1_9=127] [L95] RET, EXPR property() [L95] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_11=2, var_1_12=0, var_1_16=0, var_1_17=0, var_1_1=63, var_1_7=127, var_1_8=63, var_1_9=127] [L19] reach_error() VAL [isInitial=1, last_1_var_1_17=0, var_1_10=319, var_1_11=2, var_1_12=0, var_1_16=0, var_1_17=0, var_1_1=63, var_1_7=127, var_1_8=63, var_1_9=127] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 247 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 131 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 116 mSDtfsCounter, 47 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=2, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 470 NumberOfCodeBlocks, 470 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 360 SizeOfPredicates, 1 NumberOfNonLiveVariables, 215 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 728/728 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-16 16:36:21,916 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-75.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 78cb2a64d376bc24725ded4a0eb9b996b458809ee92f4059e872faf6b1604d1d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 16:36:23,842 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 16:36:23,913 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-16 16:36:23,919 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 16:36:23,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 16:36:23,950 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 16:36:23,951 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 16:36:23,951 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 16:36:23,952 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 16:36:23,954 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 16:36:23,954 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 16:36:23,954 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 16:36:23,955 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 16:36:23,955 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 16:36:23,955 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 16:36:23,956 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 16:36:23,959 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 16:36:23,959 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 16:36:23,960 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 16:36:23,960 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 16:36:23,960 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 16:36:23,964 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 16:36:23,965 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 16:36:23,965 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-16 16:36:23,965 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-16 16:36:23,965 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 16:36:23,968 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-16 16:36:23,968 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 16:36:23,969 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 16:36:23,969 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 16:36:23,969 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 16:36:23,969 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 16:36:23,969 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 16:36:23,969 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 16:36:23,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 16:36:23,970 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 16:36:23,970 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 16:36:23,970 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 16:36:23,970 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-16 16:36:23,971 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-16 16:36:23,971 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 16:36:23,971 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 16:36:23,971 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 16:36:23,971 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 16:36:23,972 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78cb2a64d376bc24725ded4a0eb9b996b458809ee92f4059e872faf6b1604d1d [2024-11-16 16:36:24,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 16:36:24,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 16:36:24,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 16:36:24,287 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 16:36:24,287 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 16:36:24,289 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-75.i [2024-11-16 16:36:25,723 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 16:36:25,891 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 16:36:25,891 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-75.i [2024-11-16 16:36:25,899 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d81319f08/5e19ed8bd0874d6987137488cc6a81db/FLAGecef9e98b [2024-11-16 16:36:25,910 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d81319f08/5e19ed8bd0874d6987137488cc6a81db [2024-11-16 16:36:25,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 16:36:25,913 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 16:36:25,914 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 16:36:25,914 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 16:36:25,919 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 16:36:25,920 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:36:25" (1/1) ... [2024-11-16 16:36:25,920 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10b6c51f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:25, skipping insertion in model container [2024-11-16 16:36:25,921 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:36:25" (1/1) ... [2024-11-16 16:36:25,939 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 16:36:26,109 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-75.i[915,928] [2024-11-16 16:36:26,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 16:36:26,177 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 16:36:26,190 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-75.i[915,928] [2024-11-16 16:36:26,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 16:36:26,264 INFO L204 MainTranslator]: Completed translation [2024-11-16 16:36:26,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:26 WrapperNode [2024-11-16 16:36:26,265 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 16:36:26,265 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 16:36:26,266 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 16:36:26,266 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 16:36:26,271 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:26" (1/1) ... [2024-11-16 16:36:26,283 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:26" (1/1) ... [2024-11-16 16:36:26,300 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 99 [2024-11-16 16:36:26,301 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 16:36:26,301 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 16:36:26,301 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 16:36:26,301 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 16:36:26,309 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:26" (1/1) ... [2024-11-16 16:36:26,309 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:26" (1/1) ... [2024-11-16 16:36:26,314 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:26" (1/1) ... [2024-11-16 16:36:26,327 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 16:36:26,330 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:26" (1/1) ... [2024-11-16 16:36:26,330 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:26" (1/1) ... [2024-11-16 16:36:26,339 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:26" (1/1) ... [2024-11-16 16:36:26,340 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:26" (1/1) ... [2024-11-16 16:36:26,342 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:26" (1/1) ... [2024-11-16 16:36:26,343 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:26" (1/1) ... [2024-11-16 16:36:26,345 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 16:36:26,346 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 16:36:26,346 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 16:36:26,346 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 16:36:26,346 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:26" (1/1) ... [2024-11-16 16:36:26,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 16:36:26,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 16:36:26,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 16:36:26,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 16:36:26,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 16:36:26,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-16 16:36:26,416 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 16:36:26,416 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 16:36:26,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 16:36:26,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 16:36:26,477 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 16:36:26,479 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 16:36:27,479 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-16 16:36:27,480 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 16:36:27,491 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 16:36:27,493 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 16:36:27,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:36:27 BoogieIcfgContainer [2024-11-16 16:36:27,493 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 16:36:27,495 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 16:36:27,495 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 16:36:27,498 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 16:36:27,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:36:25" (1/3) ... [2024-11-16 16:36:27,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1853efe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:36:27, skipping insertion in model container [2024-11-16 16:36:27,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:36:26" (2/3) ... [2024-11-16 16:36:27,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1853efe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:36:27, skipping insertion in model container [2024-11-16 16:36:27,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:36:27" (3/3) ... [2024-11-16 16:36:27,502 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-75.i [2024-11-16 16:36:27,514 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 16:36:27,514 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 16:36:27,563 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 16:36:27,569 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;@379f1aa7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 16:36:27,569 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 16:36:27,573 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 32 states have (on average 1.25) internal successors, (40), 33 states have internal predecessors, (40), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-16 16:36:27,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 16:36:27,583 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:36:27,583 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:36:27,584 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:36:27,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:36:27,590 INFO L85 PathProgramCache]: Analyzing trace with hash -165187612, now seen corresponding path program 1 times [2024-11-16 16:36:27,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 16:36:27,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2131443625] [2024-11-16 16:36:27,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:36:27,603 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-16 16:36:27,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 16:36:27,606 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-16 16:36:27,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-16 16:36:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:36:27,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-16 16:36:27,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 16:36:27,882 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-11-16 16:36:27,882 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 16:36:27,883 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-16 16:36:27,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2131443625] [2024-11-16 16:36:27,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2131443625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:36:27,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:36:27,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 16:36:27,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986482856] [2024-11-16 16:36:27,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:36:27,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 16:36:27,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-16 16:36:27,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 16:36:27,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 16:36:27,914 INFO L87 Difference]: Start difference. First operand has 49 states, 32 states have (on average 1.25) internal successors, (40), 33 states have internal predecessors, (40), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 16:36:27,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:36:27,938 INFO L93 Difference]: Finished difference Result 90 states and 143 transitions. [2024-11-16 16:36:27,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 16:36:27,941 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 94 [2024-11-16 16:36:27,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:36:27,948 INFO L225 Difference]: With dead ends: 90 [2024-11-16 16:36:27,948 INFO L226 Difference]: Without dead ends: 44 [2024-11-16 16:36:27,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 16:36:27,954 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 16:36:27,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 16:36:27,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-16 16:36:27,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-16 16:36:27,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 28 states have internal predecessors, (32), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-16 16:36:27,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2024-11-16 16:36:27,984 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 94 [2024-11-16 16:36:27,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:36:27,984 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2024-11-16 16:36:27,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 16:36:27,985 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2024-11-16 16:36:27,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 16:36:27,987 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:36:27,987 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:36:27,998 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-16 16:36:28,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-16 16:36:28,189 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:36:28,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:36:28,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1329610248, now seen corresponding path program 1 times [2024-11-16 16:36:28,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 16:36:28,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [508328071] [2024-11-16 16:36:28,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:36:28,191 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-16 16:36:28,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 16:36:28,195 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-16 16:36:28,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-16 16:36:28,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:36:28,413 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 16:36:28,417 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 16:36:28,632 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 16:36:28,632 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 16:36:28,633 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-16 16:36:28,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [508328071] [2024-11-16 16:36:28,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [508328071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:36:28,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:36:28,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 16:36:28,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031786630] [2024-11-16 16:36:28,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:36:28,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 16:36:28,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-16 16:36:28,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 16:36:28,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 16:36:28,639 INFO L87 Difference]: Start difference. First operand 44 states and 60 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 16:36:29,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:36:29,391 INFO L93 Difference]: Finished difference Result 128 states and 176 transitions. [2024-11-16 16:36:29,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 16:36:29,401 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 94 [2024-11-16 16:36:29,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:36:29,403 INFO L225 Difference]: With dead ends: 128 [2024-11-16 16:36:29,403 INFO L226 Difference]: Without dead ends: 87 [2024-11-16 16:36:29,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-16 16:36:29,404 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 33 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 16:36:29,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 187 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 16:36:29,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-16 16:36:29,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 75. [2024-11-16 16:36:29,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 44 states have (on average 1.0909090909090908) internal successors, (48), 44 states have internal predecessors, (48), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-16 16:36:29,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 104 transitions. [2024-11-16 16:36:29,433 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 104 transitions. Word has length 94 [2024-11-16 16:36:29,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:36:29,436 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 104 transitions. [2024-11-16 16:36:29,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 16:36:29,436 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 104 transitions. [2024-11-16 16:36:29,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 16:36:29,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:36:29,441 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:36:29,450 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-16 16:36:29,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-16 16:36:29,645 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:36:29,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:36:29,646 INFO L85 PathProgramCache]: Analyzing trace with hash -477844215, now seen corresponding path program 1 times [2024-11-16 16:36:29,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 16:36:29,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [826141146] [2024-11-16 16:36:29,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:36:29,647 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-16 16:36:29,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 16:36:29,650 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-16 16:36:29,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-16 16:36:29,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:36:29,837 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-16 16:36:29,849 INFO L278 TraceCheckSpWp]: Computing forward predicates...