./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-85.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-85.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 c060c00346e1591ea2cd610d4a2b6cad35d564494a5a2cb9d3710997ed918424 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 08:39:00,036 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 08:39:00,101 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 08:39:00,104 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 08:39:00,104 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 08:39:00,121 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 08:39:00,123 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 08:39:00,123 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 08:39:00,124 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 08:39:00,124 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 08:39:00,124 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 08:39:00,124 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 08:39:00,125 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 08:39:00,125 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 08:39:00,125 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 08:39:00,126 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 08:39:00,126 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 08:39:00,126 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 08:39:00,128 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 08:39:00,128 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 08:39:00,131 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 08:39:00,131 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 08:39:00,131 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 08:39:00,132 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 08:39:00,132 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 08:39:00,132 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 08:39:00,132 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 08:39:00,132 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 08:39:00,132 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 08:39:00,133 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 08:39:00,133 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 08:39:00,133 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 08:39:00,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:39:00,133 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 08:39:00,133 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 08:39:00,134 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 08:39:00,134 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 08:39:00,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 08:39:00,136 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 08:39:00,136 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 08:39:00,136 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 08:39:00,136 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 08:39:00,137 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c060c00346e1591ea2cd610d4a2b6cad35d564494a5a2cb9d3710997ed918424 [2024-10-24 08:39:00,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 08:39:00,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 08:39:00,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 08:39:00,394 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 08:39:00,395 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 08:39:00,396 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-85.i [2024-10-24 08:39:01,695 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 08:39:01,874 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 08:39:01,875 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-85.i [2024-10-24 08:39:01,889 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c15391d4a/fbfac26c36324072983c2bed72bf778a/FLAG2c13ee2fc [2024-10-24 08:39:01,900 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c15391d4a/fbfac26c36324072983c2bed72bf778a [2024-10-24 08:39:01,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 08:39:01,903 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 08:39:01,905 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 08:39:01,905 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 08:39:01,909 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 08:39:01,910 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:39:01" (1/1) ... [2024-10-24 08:39:01,911 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71083085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:01, skipping insertion in model container [2024-10-24 08:39:01,911 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:39:01" (1/1) ... [2024-10-24 08:39:01,931 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 08:39:02,075 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-85.i[913,926] [2024-10-24 08:39:02,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:39:02,141 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 08:39:02,150 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-85.i[913,926] [2024-10-24 08:39:02,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:39:02,201 INFO L204 MainTranslator]: Completed translation [2024-10-24 08:39:02,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:02 WrapperNode [2024-10-24 08:39:02,205 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 08:39:02,206 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 08:39:02,207 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 08:39:02,207 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 08:39:02,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:02" (1/1) ... [2024-10-24 08:39:02,219 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:02" (1/1) ... [2024-10-24 08:39:02,248 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 124 [2024-10-24 08:39:02,248 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 08:39:02,248 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 08:39:02,249 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 08:39:02,249 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 08:39:02,264 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:02" (1/1) ... [2024-10-24 08:39:02,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:02" (1/1) ... [2024-10-24 08:39:02,268 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:02" (1/1) ... [2024-10-24 08:39:02,291 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 08:39:02,291 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:02" (1/1) ... [2024-10-24 08:39:02,291 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:02" (1/1) ... [2024-10-24 08:39:02,298 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:02" (1/1) ... [2024-10-24 08:39:02,301 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:02" (1/1) ... [2024-10-24 08:39:02,306 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:02" (1/1) ... [2024-10-24 08:39:02,309 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:02" (1/1) ... [2024-10-24 08:39:02,314 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 08:39:02,315 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 08:39:02,315 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 08:39:02,315 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 08:39:02,316 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:02" (1/1) ... [2024-10-24 08:39:02,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:39:02,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:39:02,347 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 08:39:02,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 08:39:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 08:39:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 08:39:02,401 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 08:39:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 08:39:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 08:39:02,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 08:39:02,507 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 08:39:02,509 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 08:39:02,764 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-10-24 08:39:02,764 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 08:39:02,799 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 08:39:02,799 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 08:39:02,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:39:02 BoogieIcfgContainer [2024-10-24 08:39:02,799 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 08:39:02,801 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 08:39:02,801 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 08:39:02,803 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 08:39:02,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:39:01" (1/3) ... [2024-10-24 08:39:02,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407915e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:39:02, skipping insertion in model container [2024-10-24 08:39:02,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:02" (2/3) ... [2024-10-24 08:39:02,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407915e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:39:02, skipping insertion in model container [2024-10-24 08:39:02,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:39:02" (3/3) ... [2024-10-24 08:39:02,805 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-85.i [2024-10-24 08:39:02,818 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 08:39:02,818 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 08:39:02,858 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 08:39:02,863 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;@276f812f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 08:39:02,863 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 08:39:02,866 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 31 states have internal predecessors, (44), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 08:39:02,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-24 08:39:02,874 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:39:02,874 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:39:02,875 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:39:02,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:39:02,878 INFO L85 PathProgramCache]: Analyzing trace with hash 491342127, now seen corresponding path program 1 times [2024-10-24 08:39:02,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:39:02,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207481572] [2024-10-24 08:39:02,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:39:02,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:39:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:03,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:39:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:03,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:39:03,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:03,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:39:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:03,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:39:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:03,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:39:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:03,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:39:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:03,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:39:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:03,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 08:39:03,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:03,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:39:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:03,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:39:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:03,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:39:03,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:03,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:39:03,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:03,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:39:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:03,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:39:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:03,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:39:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:03,199 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-24 08:39:03,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:39:03,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207481572] [2024-10-24 08:39:03,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207481572] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:39:03,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:39:03,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 08:39:03,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213771741] [2024-10-24 08:39:03,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:39:03,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 08:39:03,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:39:03,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 08:39:03,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 08:39:03,236 INFO L87 Difference]: Start difference. First operand has 48 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 31 states have internal predecessors, (44), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 08:39:03,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:39:03,264 INFO L93 Difference]: Finished difference Result 93 states and 161 transitions. [2024-10-24 08:39:03,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 08:39:03,266 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97 [2024-10-24 08:39:03,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:39:03,274 INFO L225 Difference]: With dead ends: 93 [2024-10-24 08:39:03,275 INFO L226 Difference]: Without dead ends: 46 [2024-10-24 08:39:03,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 08:39:03,280 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 08:39:03,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 08:39:03,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-10-24 08:39:03,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-10-24 08:39:03,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 29 states have internal predecessors, (39), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 08:39:03,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 69 transitions. [2024-10-24 08:39:03,319 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 69 transitions. Word has length 97 [2024-10-24 08:39:03,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:39:03,320 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 69 transitions. [2024-10-24 08:39:03,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 08:39:03,321 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 69 transitions. [2024-10-24 08:39:03,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-24 08:39:03,325 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:39:03,325 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:39:03,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 08:39:03,326 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:39:03,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:39:03,326 INFO L85 PathProgramCache]: Analyzing trace with hash 89204517, now seen corresponding path program 1 times [2024-10-24 08:39:03,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:39:03,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565922310] [2024-10-24 08:39:03,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:39:03,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:39:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:04,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:39:04,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:04,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:39:04,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:04,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:39:04,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:04,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:39:04,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:04,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:39:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:04,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:39:04,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:04,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:39:04,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:04,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 08:39:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:04,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:39:04,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:04,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:39:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:04,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:39:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:04,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:39:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:04,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:39:04,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:04,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:39:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:04,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:39:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:04,462 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-24 08:39:04,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:39:04,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565922310] [2024-10-24 08:39:04,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565922310] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:39:04,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:39:04,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 08:39:04,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509436130] [2024-10-24 08:39:04,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:39:04,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 08:39:04,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:39:04,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 08:39:04,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 08:39:04,468 INFO L87 Difference]: Start difference. First operand 46 states and 69 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-24 08:39:04,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:39:04,769 INFO L93 Difference]: Finished difference Result 150 states and 224 transitions. [2024-10-24 08:39:04,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 08:39:04,770 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 97 [2024-10-24 08:39:04,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:39:04,773 INFO L225 Difference]: With dead ends: 150 [2024-10-24 08:39:04,773 INFO L226 Difference]: Without dead ends: 105 [2024-10-24 08:39:04,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-24 08:39:04,777 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 129 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 08:39:04,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 211 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 08:39:04,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-10-24 08:39:04,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 83. [2024-10-24 08:39:04,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 50 states have (on average 1.3) internal successors, (65), 50 states have internal predecessors, (65), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-24 08:39:04,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 125 transitions. [2024-10-24 08:39:04,810 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 125 transitions. Word has length 97 [2024-10-24 08:39:04,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:39:04,811 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 125 transitions. [2024-10-24 08:39:04,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-24 08:39:04,811 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 125 transitions. [2024-10-24 08:39:04,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-24 08:39:04,817 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:39:04,817 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:39:04,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 08:39:04,817 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:39:04,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:39:04,818 INFO L85 PathProgramCache]: Analyzing trace with hash 146462819, now seen corresponding path program 1 times [2024-10-24 08:39:04,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:39:04,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299860223] [2024-10-24 08:39:04,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:39:04,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:39:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:39:05,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:39:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:39:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:39:05,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:39:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:39:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:39:05,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 08:39:05,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:39:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:39:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:39:05,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:39:05,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:39:05,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:39:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:39:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,185 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-24 08:39:05,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:39:05,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299860223] [2024-10-24 08:39:05,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299860223] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:39:05,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:39:05,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 08:39:05,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115334508] [2024-10-24 08:39:05,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:39:05,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 08:39:05,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:39:05,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 08:39:05,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 08:39:05,187 INFO L87 Difference]: Start difference. First operand 83 states and 125 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-24 08:39:05,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:39:05,332 INFO L93 Difference]: Finished difference Result 147 states and 219 transitions. [2024-10-24 08:39:05,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 08:39:05,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 97 [2024-10-24 08:39:05,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:39:05,334 INFO L225 Difference]: With dead ends: 147 [2024-10-24 08:39:05,334 INFO L226 Difference]: Without dead ends: 96 [2024-10-24 08:39:05,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 08:39:05,336 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 52 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 08:39:05,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 206 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 08:39:05,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-10-24 08:39:05,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 83. [2024-10-24 08:39:05,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 50 states have (on average 1.28) internal successors, (64), 50 states have internal predecessors, (64), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-24 08:39:05,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 124 transitions. [2024-10-24 08:39:05,348 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 124 transitions. Word has length 97 [2024-10-24 08:39:05,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:39:05,348 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 124 transitions. [2024-10-24 08:39:05,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-24 08:39:05,349 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 124 transitions. [2024-10-24 08:39:05,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-24 08:39:05,350 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:39:05,350 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:39:05,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 08:39:05,350 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:39:05,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:39:05,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1943013113, now seen corresponding path program 1 times [2024-10-24 08:39:05,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:39:05,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599405640] [2024-10-24 08:39:05,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:39:05,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:39:05,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:39:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:39:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:39:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:39:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:39:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:39:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:39:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 08:39:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:39:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:39:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:39:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:39:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:39:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:39:05,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:39:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,788 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 36 proven. 6 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-10-24 08:39:05,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:39:05,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599405640] [2024-10-24 08:39:05,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599405640] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 08:39:05,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240697195] [2024-10-24 08:39:05,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:39:05,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 08:39:05,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:39:05,796 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) [2024-10-24 08:39:05,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 08:39:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:05,874 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-24 08:39:05,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 08:39:06,211 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 183 proven. 42 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-10-24 08:39:06,214 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 08:39:06,433 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 36 proven. 6 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-10-24 08:39:06,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240697195] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 08:39:06,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 08:39:06,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 8] total 19 [2024-10-24 08:39:06,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257380841] [2024-10-24 08:39:06,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 08:39:06,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 08:39:06,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:39:06,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 08:39:06,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-10-24 08:39:06,437 INFO L87 Difference]: Start difference. First operand 83 states and 124 transitions. Second operand has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 4 states have call successors, (28), 3 states have call predecessors, (28), 6 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2024-10-24 08:39:07,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:39:07,301 INFO L93 Difference]: Finished difference Result 256 states and 350 transitions. [2024-10-24 08:39:07,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-10-24 08:39:07,302 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 4 states have call successors, (28), 3 states have call predecessors, (28), 6 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 98 [2024-10-24 08:39:07,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:39:07,304 INFO L225 Difference]: With dead ends: 256 [2024-10-24 08:39:07,304 INFO L226 Difference]: Without dead ends: 209 [2024-10-24 08:39:07,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=458, Invalid=1704, Unknown=0, NotChecked=0, Total=2162 [2024-10-24 08:39:07,306 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 513 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 08:39:07,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 377 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 08:39:07,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-10-24 08:39:07,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 127. [2024-10-24 08:39:07,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 77 states have (on average 1.1818181818181819) internal successors, (91), 78 states have internal predecessors, (91), 41 states have call successors, (41), 8 states have call predecessors, (41), 8 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-10-24 08:39:07,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 173 transitions. [2024-10-24 08:39:07,325 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 173 transitions. Word has length 98 [2024-10-24 08:39:07,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:39:07,326 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 173 transitions. [2024-10-24 08:39:07,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 4 states have call successors, (28), 3 states have call predecessors, (28), 6 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2024-10-24 08:39:07,326 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 173 transitions. [2024-10-24 08:39:07,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-24 08:39:07,327 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:39:07,327 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:39:07,341 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 08:39:07,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 08:39:07,528 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:39:07,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:39:07,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1542607557, now seen corresponding path program 1 times [2024-10-24 08:39:07,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:39:07,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613039662] [2024-10-24 08:39:07,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:39:07,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:39:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 08:39:07,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [730033063] [2024-10-24 08:39:07,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:39:07,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 08:39:07,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:39:07,577 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) [2024-10-24 08:39:07,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 08:39:07,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 08:39:07,778 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 08:39:07,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 08:39:07,851 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 08:39:07,851 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 08:39:07,852 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-24 08:39:07,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-24 08:39:08,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 08:39:08,057 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-10-24 08:39:08,116 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 08:39:08,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 08:39:08 BoogieIcfgContainer [2024-10-24 08:39:08,119 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 08:39:08,119 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 08:39:08,119 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 08:39:08,119 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 08:39:08,120 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:39:02" (3/4) ... [2024-10-24 08:39:08,121 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 08:39:08,122 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 08:39:08,123 INFO L158 Benchmark]: Toolchain (without parser) took 6219.88ms. Allocated memory was 182.5MB in the beginning and 283.1MB in the end (delta: 100.7MB). Free memory was 140.4MB in the beginning and 159.3MB in the end (delta: -18.8MB). Peak memory consumption was 81.5MB. Max. memory is 16.1GB. [2024-10-24 08:39:08,123 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 102.8MB. Free memory is still 70.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 08:39:08,123 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.19ms. Allocated memory is still 182.5MB. Free memory was 140.4MB in the beginning and 124.3MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-24 08:39:08,124 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.54ms. Allocated memory is still 182.5MB. Free memory was 124.3MB in the beginning and 121.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 08:39:08,124 INFO L158 Benchmark]: Boogie Preprocessor took 65.70ms. Allocated memory is still 182.5MB. Free memory was 121.6MB in the beginning and 117.2MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 08:39:08,124 INFO L158 Benchmark]: RCFGBuilder took 484.66ms. Allocated memory is still 182.5MB. Free memory was 117.2MB in the beginning and 130.6MB in the end (delta: -13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-24 08:39:08,125 INFO L158 Benchmark]: TraceAbstraction took 5317.90ms. Allocated memory was 182.5MB in the beginning and 283.1MB in the end (delta: 100.7MB). Free memory was 130.6MB in the beginning and 160.3MB in the end (delta: -29.7MB). Peak memory consumption was 74.1MB. Max. memory is 16.1GB. [2024-10-24 08:39:08,125 INFO L158 Benchmark]: Witness Printer took 3.34ms. Allocated memory is still 283.1MB. Free memory was 160.3MB in the beginning and 159.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 08:39:08,126 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 102.8MB. Free memory is still 70.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 301.19ms. Allocated memory is still 182.5MB. Free memory was 140.4MB in the beginning and 124.3MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.54ms. Allocated memory is still 182.5MB. Free memory was 124.3MB in the beginning and 121.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.70ms. Allocated memory is still 182.5MB. Free memory was 121.6MB in the beginning and 117.2MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 484.66ms. Allocated memory is still 182.5MB. Free memory was 117.2MB in the beginning and 130.6MB in the end (delta: -13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 5317.90ms. Allocated memory was 182.5MB in the beginning and 283.1MB in the end (delta: 100.7MB). Free memory was 130.6MB in the beginning and 160.3MB in the end (delta: -29.7MB). Peak memory consumption was 74.1MB. Max. memory is 16.1GB. * Witness Printer took 3.34ms. Allocated memory is still 283.1MB. Free memory was 160.3MB in the beginning and 159.3MB in the end (delta: 1.0MB). 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 118, overapproximation of someBinaryDOUBLEComparisonOperation at line 118. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 1000; [L23] unsigned char var_1_5 = 1; [L24] unsigned char var_1_6 = 0; [L25] float var_1_7 = 0.6; [L26] unsigned long int var_1_8 = 32; [L27] unsigned long int var_1_9 = 32; [L28] float var_1_11 = 5.5; [L29] unsigned long int var_1_12 = 128; [L30] unsigned char var_1_13 = 16; [L31] unsigned char var_1_14 = 0; [L32] unsigned long int var_1_15 = 8; [L33] unsigned char var_1_16 = 0; [L34] unsigned char var_1_17 = 0; [L35] double var_1_18 = 1.8; [L36] double var_1_19 = 4.5; [L37] double var_1_20 = 15.5; [L38] unsigned long int last_1_var_1_1 = 1000; [L39] unsigned char last_1_var_1_5 = 1; [L40] unsigned long int last_1_var_1_12 = 128; [L41] unsigned char last_1_var_1_13 = 16; [L42] unsigned long int last_1_var_1_15 = 8; [L122] isInitial = 1 [L123] FCALL initially() [L124] COND TRUE 1 [L125] CALL updateLastVariables() [L111] last_1_var_1_1 = var_1_1 [L112] last_1_var_1_5 = var_1_5 [L113] last_1_var_1_12 = var_1_12 [L114] last_1_var_1_13 = var_1_13 [L115] last_1_var_1_15 = var_1_15 [L125] RET updateLastVariables() [L126] CALL updateVariables() [L86] var_1_6 = __VERIFIER_nondet_uchar() [L87] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_7=3/5, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_7=3/5, var_1_8=32, var_1_9=32] [L87] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_7=3/5, var_1_8=32, var_1_9=32] [L88] CALL assume_abort_if_not(var_1_6 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=32, var_1_9=32] [L88] RET assume_abort_if_not(var_1_6 <= 0) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=32, var_1_9=32] [L89] var_1_8 = __VERIFIER_nondet_ulong() [L90] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_9=32] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_9=32] [L90] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_9=32] [L91] CALL assume_abort_if_not(var_1_8 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_9=32] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_9=32] [L91] RET assume_abort_if_not(var_1_8 <= 4294967295) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_9=32] [L92] CALL assume_abort_if_not(var_1_8 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=32] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=32] [L92] RET assume_abort_if_not(var_1_8 != 0) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=32] [L93] var_1_9 = __VERIFIER_nondet_ulong() [L94] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33] [L94] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33] [L95] CALL assume_abort_if_not(var_1_9 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33] [L95] RET assume_abort_if_not(var_1_9 <= 4294967295) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33] [L96] CALL assume_abort_if_not(var_1_9 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L96] RET assume_abort_if_not(var_1_9 != 0) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L97] var_1_11 = __VERIFIER_nondet_float() [L98] CALL assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L98] RET assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L99] var_1_14 = __VERIFIER_nondet_uchar() [L100] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L100] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L101] CALL assume_abort_if_not(var_1_14 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L101] RET assume_abort_if_not(var_1_14 <= 254) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L102] var_1_17 = __VERIFIER_nondet_uchar() [L103] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L103] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L104] CALL assume_abort_if_not(var_1_17 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L104] RET assume_abort_if_not(var_1_17 <= 0) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L105] var_1_19 = __VERIFIER_nondet_double() [L106] CALL assume_abort_if_not((var_1_19 >= -461168.6018427382800e+13F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 4611686.018427382800e+12F && var_1_19 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L106] RET assume_abort_if_not((var_1_19 >= -461168.6018427382800e+13F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 4611686.018427382800e+12F && var_1_19 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_20=31/2, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L107] var_1_20 = __VERIFIER_nondet_double() [L108] CALL assume_abort_if_not((var_1_20 >= 0.0F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 4611686.018427382800e+12F && var_1_20 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L108] RET assume_abort_if_not((var_1_20 >= 0.0F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 4611686.018427382800e+12F && var_1_20 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L126] RET updateVariables() [L127] CALL step() [L46] signed long int stepLocal_1 = last_1_var_1_13; [L47] signed long int stepLocal_0 = last_1_var_1_13; VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, stepLocal_0=16, stepLocal_1=16, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L48] COND TRUE stepLocal_1 < ((- last_1_var_1_12) * 64) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, stepLocal_0=16, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L49] COND TRUE \read(last_1_var_1_5) [L50] var_1_1 = ((((last_1_var_1_12) < 0 ) ? -(last_1_var_1_12) : (last_1_var_1_12))) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, stepLocal_0=16, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=128, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L59] unsigned long int stepLocal_2 = last_1_var_1_15 + last_1_var_1_1; VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, stepLocal_0=16, stepLocal_2=1008, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=128, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L60] COND TRUE last_1_var_1_13 <= stepLocal_2 [L61] var_1_5 = ((last_1_var_1_15 == last_1_var_1_13) && var_1_6) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, stepLocal_0=16, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=128, var_1_5=0, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L65] unsigned char stepLocal_3 = var_1_5; VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, stepLocal_0=16, stepLocal_3=0, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=128, var_1_5=0, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L66] COND FALSE !(stepLocal_3 || var_1_17) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, stepLocal_0=16, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=128, var_1_5=0, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L69] var_1_13 = ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14))) [L70] var_1_16 = (var_1_6 && var_1_17) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, stepLocal_0=16, var_1_12=128, var_1_13=0, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=128, var_1_5=0, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L71] COND FALSE !(\read(var_1_5)) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, stepLocal_0=16, var_1_12=128, var_1_13=0, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=128, var_1_5=0, var_1_6=0, var_1_7=3/5, var_1_8=33, var_1_9=1] [L74] COND FALSE !((var_1_15 + (var_1_15 * var_1_13)) <= ((32u / var_1_8) / var_1_9)) [L79] var_1_7 = var_1_11 VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, stepLocal_0=16, var_1_11=2, var_1_12=128, var_1_13=0, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=128, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=33, var_1_9=1] [L81] COND TRUE var_1_7 <= (- (32.8f + var_1_7)) [L82] var_1_12 = last_1_var_1_12 VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, stepLocal_0=16, var_1_11=2, var_1_12=128, var_1_13=0, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=128, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=33, var_1_9=1] [L127] RET step() [L128] CALL, EXPR property() [L118-L119] return ((((((((last_1_var_1_13 < ((- last_1_var_1_12) * 64)) ? (last_1_var_1_5 ? (var_1_1 == ((unsigned long int) ((((last_1_var_1_12) < 0 ) ? -(last_1_var_1_12) : (last_1_var_1_12))))) : ((-10000000 < last_1_var_1_13) ? (var_1_1 == ((unsigned long int) (((((((last_1_var_1_12) > (5u)) ? (last_1_var_1_12) : (5u))) < 0 ) ? -((((last_1_var_1_12) > (5u)) ? (last_1_var_1_12) : (5u))) : ((((last_1_var_1_12) > (5u)) ? (last_1_var_1_12) : (5u))))))) : (var_1_1 == ((unsigned long int) 50u)))) : 1) && ((last_1_var_1_13 <= (last_1_var_1_15 + last_1_var_1_1)) ? (var_1_5 == ((unsigned char) ((last_1_var_1_15 == last_1_var_1_13) && var_1_6))) : (var_1_5 == ((unsigned char) var_1_6)))) && (((var_1_15 + (var_1_15 * var_1_13)) <= ((32u / var_1_8) / var_1_9)) ? ((1.25f < var_1_18) ? (var_1_7 == ((float) 1000000.1f)) : 1) : (var_1_7 == ((float) var_1_11)))) && ((var_1_7 <= (- (32.8f + var_1_7))) ? (var_1_12 == ((unsigned long int) last_1_var_1_12)) : 1)) && (var_1_13 == ((unsigned char) ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14)))))) && (var_1_5 ? (var_1_15 == ((unsigned long int) ((((var_1_1) > ((var_1_13 + ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14)))))) ? (var_1_1) : ((var_1_13 + ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14))))))))) : 1)) && (var_1_16 == ((unsigned char) (var_1_6 && var_1_17)))) && ((var_1_5 || var_1_17) ? (var_1_18 == ((double) ((((((var_1_19) < 0 ) ? -(var_1_19) : (var_1_19))) + var_1_20) - 63.6))) : 1) ; [L128] RET, EXPR property() [L128] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=2, var_1_12=128, var_1_13=0, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=128, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=33, var_1_9=1] [L19] reach_error() VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=2, var_1_12=128, var_1_13=0, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=128, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=33, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.2s, OverallIterations: 5, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 706 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 694 mSDsluCounter, 860 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 604 mSDsCounter, 488 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 681 IncrementalHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 488 mSolverCounterUnsat, 256 mSDtfsCounter, 681 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 387 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=4, InterpolantAutomatonStates: 49, 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, 4 MinimizatonAttempts, 117 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 683 NumberOfCodeBlocks, 683 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 579 ConstructedInterpolants, 0 QuantifiedInterpolants, 2012 SizeOfPredicates, 7 NumberOfNonLiveVariables, 252 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 2466/2520 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-24 08:39:08,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-85.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 c060c00346e1591ea2cd610d4a2b6cad35d564494a5a2cb9d3710997ed918424 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 08:39:10,419 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 08:39:10,477 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-24 08:39:10,483 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 08:39:10,484 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 08:39:10,517 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 08:39:10,518 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 08:39:10,519 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 08:39:10,520 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 08:39:10,520 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 08:39:10,521 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 08:39:10,521 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 08:39:10,521 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 08:39:10,522 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 08:39:10,523 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 08:39:10,524 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 08:39:10,524 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 08:39:10,524 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 08:39:10,524 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 08:39:10,525 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 08:39:10,525 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 08:39:10,528 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 08:39:10,528 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 08:39:10,528 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 08:39:10,528 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 08:39:10,528 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 08:39:10,528 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 08:39:10,528 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 08:39:10,529 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 08:39:10,529 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 08:39:10,529 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 08:39:10,529 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 08:39:10,529 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 08:39:10,529 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 08:39:10,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:39:10,530 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 08:39:10,530 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 08:39:10,532 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 08:39:10,532 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 08:39:10,532 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 08:39:10,532 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 08:39:10,533 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 08:39:10,533 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 08:39:10,533 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 08:39:10,533 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 08:39:10,533 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c060c00346e1591ea2cd610d4a2b6cad35d564494a5a2cb9d3710997ed918424 [2024-10-24 08:39:10,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 08:39:10,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 08:39:10,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 08:39:10,845 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 08:39:10,845 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 08:39:10,847 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-85.i [2024-10-24 08:39:12,295 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 08:39:12,475 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 08:39:12,475 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-85.i [2024-10-24 08:39:12,483 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65503b82a/81ebd58de6d14921b14e55986d92c4b6/FLAG119273305 [2024-10-24 08:39:12,494 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65503b82a/81ebd58de6d14921b14e55986d92c4b6 [2024-10-24 08:39:12,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 08:39:12,497 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 08:39:12,498 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 08:39:12,498 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 08:39:12,502 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 08:39:12,503 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:39:12" (1/1) ... [2024-10-24 08:39:12,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1352988e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:12, skipping insertion in model container [2024-10-24 08:39:12,504 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:39:12" (1/1) ... [2024-10-24 08:39:12,523 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 08:39:12,660 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-85.i[913,926] [2024-10-24 08:39:12,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:39:12,718 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 08:39:12,730 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-85.i[913,926] [2024-10-24 08:39:12,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:39:12,769 INFO L204 MainTranslator]: Completed translation [2024-10-24 08:39:12,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:12 WrapperNode [2024-10-24 08:39:12,770 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 08:39:12,771 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 08:39:12,771 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 08:39:12,771 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 08:39:12,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:12" (1/1) ... [2024-10-24 08:39:12,790 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:12" (1/1) ... [2024-10-24 08:39:12,816 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 124 [2024-10-24 08:39:12,816 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 08:39:12,817 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 08:39:12,817 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 08:39:12,817 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 08:39:12,826 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:12" (1/1) ... [2024-10-24 08:39:12,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:12" (1/1) ... [2024-10-24 08:39:12,829 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:12" (1/1) ... [2024-10-24 08:39:12,840 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 08:39:12,841 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:12" (1/1) ... [2024-10-24 08:39:12,841 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:12" (1/1) ... [2024-10-24 08:39:12,850 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:12" (1/1) ... [2024-10-24 08:39:12,853 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:12" (1/1) ... [2024-10-24 08:39:12,855 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:12" (1/1) ... [2024-10-24 08:39:12,856 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:12" (1/1) ... [2024-10-24 08:39:12,859 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 08:39:12,860 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 08:39:12,860 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 08:39:12,860 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 08:39:12,861 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:12" (1/1) ... [2024-10-24 08:39:12,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:39:12,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:39:12,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 08:39:12,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 08:39:12,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 08:39:12,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 08:39:12,958 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 08:39:12,958 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 08:39:12,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 08:39:12,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 08:39:13,049 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 08:39:13,051 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 08:39:15,881 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-10-24 08:39:15,881 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 08:39:15,922 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 08:39:15,922 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 08:39:15,923 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:39:15 BoogieIcfgContainer [2024-10-24 08:39:15,923 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 08:39:15,925 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 08:39:15,925 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 08:39:15,928 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 08:39:15,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:39:12" (1/3) ... [2024-10-24 08:39:15,930 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b260e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:39:15, skipping insertion in model container [2024-10-24 08:39:15,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:39:12" (2/3) ... [2024-10-24 08:39:15,930 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b260e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:39:15, skipping insertion in model container [2024-10-24 08:39:15,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:39:15" (3/3) ... [2024-10-24 08:39:15,932 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-85.i [2024-10-24 08:39:15,948 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 08:39:15,949 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 08:39:15,998 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 08:39:16,004 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;@31146d26, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 08:39:16,004 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 08:39:16,008 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 31 states have internal predecessors, (44), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 08:39:16,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-24 08:39:16,016 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:39:16,017 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:39:16,017 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:39:16,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:39:16,022 INFO L85 PathProgramCache]: Analyzing trace with hash 491342127, now seen corresponding path program 1 times [2024-10-24 08:39:16,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 08:39:16,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127699113] [2024-10-24 08:39:16,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:39:16,033 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 08:39:16,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 08:39:16,037 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 08:39:16,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-24 08:39:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:16,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 08:39:16,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 08:39:16,462 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-10-24 08:39:16,462 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 08:39:16,463 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 08:39:16,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1127699113] [2024-10-24 08:39:16,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1127699113] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:39:16,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:39:16,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 08:39:16,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201700185] [2024-10-24 08:39:16,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:39:16,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 08:39:16,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 08:39:16,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 08:39:16,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 08:39:16,494 INFO L87 Difference]: Start difference. First operand has 48 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 31 states have internal predecessors, (44), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 08:39:18,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-24 08:39:18,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:39:18,062 INFO L93 Difference]: Finished difference Result 93 states and 161 transitions. [2024-10-24 08:39:18,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 08:39:18,087 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97 [2024-10-24 08:39:18,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:39:18,095 INFO L225 Difference]: With dead ends: 93 [2024-10-24 08:39:18,095 INFO L226 Difference]: Without dead ends: 46 [2024-10-24 08:39:18,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 08:39:18,104 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 08:39:18,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 08:39:18,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-10-24 08:39:18,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-10-24 08:39:18,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 29 states have internal predecessors, (39), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 08:39:18,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 69 transitions. [2024-10-24 08:39:18,154 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 69 transitions. Word has length 97 [2024-10-24 08:39:18,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:39:18,154 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 69 transitions. [2024-10-24 08:39:18,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 08:39:18,155 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 69 transitions. [2024-10-24 08:39:18,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-24 08:39:18,161 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:39:18,161 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:39:18,173 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-24 08:39:18,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 08:39:18,363 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:39:18,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:39:18,364 INFO L85 PathProgramCache]: Analyzing trace with hash 89204517, now seen corresponding path program 1 times [2024-10-24 08:39:18,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 08:39:18,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2146317180] [2024-10-24 08:39:18,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:39:18,367 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 08:39:18,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 08:39:18,370 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 08:39:18,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-24 08:39:18,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:18,754 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 08:39:18,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 08:39:19,521 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-24 08:39:19,522 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 08:39:19,522 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 08:39:19,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2146317180] [2024-10-24 08:39:19,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2146317180] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:39:19,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:39:19,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 08:39:19,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110116038] [2024-10-24 08:39:19,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:39:19,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 08:39:19,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 08:39:19,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 08:39:19,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 08:39:19,529 INFO L87 Difference]: Start difference. First operand 46 states and 69 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-24 08:39:21,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-24 08:39:21,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:39:21,511 INFO L93 Difference]: Finished difference Result 91 states and 137 transitions. [2024-10-24 08:39:21,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 08:39:21,535 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 97 [2024-10-24 08:39:21,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:39:21,536 INFO L225 Difference]: With dead ends: 91 [2024-10-24 08:39:21,536 INFO L226 Difference]: Without dead ends: 46 [2024-10-24 08:39:21,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-24 08:39:21,537 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 61 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-24 08:39:21,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 91 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-24 08:39:21,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-10-24 08:39:21,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-10-24 08:39:21,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 29 states have internal predecessors, (38), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 08:39:21,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 68 transitions. [2024-10-24 08:39:21,545 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 68 transitions. Word has length 97 [2024-10-24 08:39:21,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:39:21,546 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 68 transitions. [2024-10-24 08:39:21,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-24 08:39:21,547 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 68 transitions. [2024-10-24 08:39:21,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-24 08:39:21,548 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:39:21,548 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:39:21,564 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-24 08:39:21,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 08:39:21,753 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:39:21,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:39:21,754 INFO L85 PathProgramCache]: Analyzing trace with hash -2000271415, now seen corresponding path program 1 times [2024-10-24 08:39:21,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 08:39:21,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1249935402] [2024-10-24 08:39:21,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:39:21,755 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 08:39:21,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 08:39:21,757 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 08:39:21,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-24 08:39:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:22,032 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-24 08:39:22,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 08:39:23,433 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 134 proven. 6 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-10-24 08:39:23,433 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 08:39:24,177 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 36 proven. 6 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-10-24 08:39:24,177 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 08:39:24,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1249935402] [2024-10-24 08:39:24,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1249935402] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 08:39:24,177 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 08:39:24,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14 [2024-10-24 08:39:24,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515641491] [2024-10-24 08:39:24,178 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 08:39:24,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 08:39:24,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 08:39:24,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 08:39:24,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-10-24 08:39:24,181 INFO L87 Difference]: Start difference. First operand 46 states and 68 transitions. Second operand has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 4 states have call successors, (30), 3 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2024-10-24 08:39:29,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-24 08:39:29,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:39:29,227 INFO L93 Difference]: Finished difference Result 196 states and 287 transitions. [2024-10-24 08:39:29,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 08:39:29,231 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 4 states have call successors, (30), 3 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 98 [2024-10-24 08:39:29,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:39:29,233 INFO L225 Difference]: With dead ends: 196 [2024-10-24 08:39:29,233 INFO L226 Difference]: Without dead ends: 151 [2024-10-24 08:39:29,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 183 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=182, Invalid=418, Unknown=0, NotChecked=0, Total=600 [2024-10-24 08:39:29,235 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 231 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-10-24 08:39:29,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 428 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-10-24 08:39:29,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-10-24 08:39:29,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 117. [2024-10-24 08:39:29,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 71 states have (on average 1.2535211267605635) internal successors, (89), 72 states have internal predecessors, (89), 41 states have call successors, (41), 4 states have call predecessors, (41), 4 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-10-24 08:39:29,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 171 transitions. [2024-10-24 08:39:29,272 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 171 transitions. Word has length 98 [2024-10-24 08:39:29,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:39:29,273 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 171 transitions. [2024-10-24 08:39:29,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 4 states have call successors, (30), 3 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2024-10-24 08:39:29,274 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 171 transitions. [2024-10-24 08:39:29,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-24 08:39:29,275 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:39:29,278 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:39:29,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-10-24 08:39:29,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 08:39:29,480 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:39:29,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:39:29,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1542607557, now seen corresponding path program 1 times [2024-10-24 08:39:29,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 08:39:29,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1755518511] [2024-10-24 08:39:29,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:39:29,481 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 08:39:29,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 08:39:29,485 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 08:39:29,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-24 08:39:29,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:39:29,748 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-24 08:39:29,753 INFO L278 TraceCheckSpWp]: Computing forward predicates...