./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash bc19904b68b3c373243042dce59996dc4b666d99713ce0cfa66e5db1006d1674 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 02:12:01,814 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 02:12:01,876 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 02:12:01,882 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 02:12:01,883 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 02:12:01,915 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 02:12:01,916 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 02:12:01,916 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 02:12:01,917 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 02:12:01,918 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 02:12:01,918 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 02:12:01,919 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 02:12:01,919 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 02:12:01,921 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 02:12:01,922 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 02:12:01,922 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 02:12:01,922 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 02:12:01,923 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 02:12:01,923 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 02:12:01,923 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 02:12:01,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 02:12:01,927 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 02:12:01,927 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 02:12:01,928 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 02:12:01,928 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 02:12:01,928 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 02:12:01,928 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 02:12:01,928 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 02:12:01,929 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 02:12:01,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 02:12:01,929 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 02:12:01,930 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 02:12:01,930 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 02:12:01,930 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 02:12:01,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 02:12:01,931 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 02:12:01,931 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 02:12:01,932 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 02:12:01,932 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 02:12:01,933 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc19904b68b3c373243042dce59996dc4b666d99713ce0cfa66e5db1006d1674 [2024-11-10 02:12:02,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 02:12:02,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 02:12:02,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 02:12:02,211 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 02:12:02,212 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 02:12:02,213 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c [2024-11-10 02:12:03,684 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 02:12:03,877 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 02:12:03,877 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c [2024-11-10 02:12:03,886 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3e41fdb9/25e97a515f1a47918e698a540cc381ad/FLAGb8d630414 [2024-11-10 02:12:03,900 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3e41fdb9/25e97a515f1a47918e698a540cc381ad [2024-11-10 02:12:03,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 02:12:03,905 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 02:12:03,909 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 02:12:03,909 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 02:12:03,916 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 02:12:03,917 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:12:03" (1/1) ... [2024-11-10 02:12:03,918 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f22eeee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:03, skipping insertion in model container [2024-11-10 02:12:03,918 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:12:03" (1/1) ... [2024-11-10 02:12:03,946 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 02:12:04,137 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c[1245,1258] [2024-11-10 02:12:04,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 02:12:04,206 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 02:12:04,221 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c[1245,1258] [2024-11-10 02:12:04,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 02:12:04,263 INFO L204 MainTranslator]: Completed translation [2024-11-10 02:12:04,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:04 WrapperNode [2024-11-10 02:12:04,265 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 02:12:04,266 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 02:12:04,267 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 02:12:04,269 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 02:12:04,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:04" (1/1) ... [2024-11-10 02:12:04,283 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:04" (1/1) ... [2024-11-10 02:12:04,320 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 174 [2024-11-10 02:12:04,321 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 02:12:04,321 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 02:12:04,322 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 02:12:04,322 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 02:12:04,340 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:04" (1/1) ... [2024-11-10 02:12:04,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:04" (1/1) ... [2024-11-10 02:12:04,351 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:04" (1/1) ... [2024-11-10 02:12:04,373 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-10 02:12:04,374 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:04" (1/1) ... [2024-11-10 02:12:04,374 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:04" (1/1) ... [2024-11-10 02:12:04,382 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:04" (1/1) ... [2024-11-10 02:12:04,386 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:04" (1/1) ... [2024-11-10 02:12:04,387 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:04" (1/1) ... [2024-11-10 02:12:04,393 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:04" (1/1) ... [2024-11-10 02:12:04,401 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 02:12:04,402 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 02:12:04,402 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 02:12:04,402 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 02:12:04,403 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:04" (1/1) ... [2024-11-10 02:12:04,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 02:12:04,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:12:04,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 02:12:04,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 02:12:04,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 02:12:04,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 02:12:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 02:12:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 02:12:04,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 02:12:04,586 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 02:12:04,588 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 02:12:04,933 INFO L? ?]: Removed 72 outVars from TransFormulas that were not future-live. [2024-11-10 02:12:04,934 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 02:12:04,974 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 02:12:04,975 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 02:12:04,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:12:04 BoogieIcfgContainer [2024-11-10 02:12:04,976 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 02:12:04,978 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 02:12:04,978 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 02:12:04,983 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 02:12:04,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:12:03" (1/3) ... [2024-11-10 02:12:04,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607aab5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:12:04, skipping insertion in model container [2024-11-10 02:12:04,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:04" (2/3) ... [2024-11-10 02:12:04,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607aab5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:12:04, skipping insertion in model container [2024-11-10 02:12:04,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:12:04" (3/3) ... [2024-11-10 02:12:04,986 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b07.c [2024-11-10 02:12:05,006 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 02:12:05,007 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 02:12:05,092 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 02:12:05,102 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;@41c56623, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 02:12:05,102 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 02:12:05,123 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 39 states have (on average 1.435897435897436) internal successors, (56), 40 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:05,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-10 02:12:05,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:12:05,134 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:12:05,135 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:12:05,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:12:05,141 INFO L85 PathProgramCache]: Analyzing trace with hash -319014365, now seen corresponding path program 1 times [2024-11-10 02:12:05,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:12:05,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826150298] [2024-11-10 02:12:05,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:12:05,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:12:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:12:05,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:12:05,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:12:05,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826150298] [2024-11-10 02:12:05,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826150298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:12:05,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:12:05,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:12:05,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619947639] [2024-11-10 02:12:05,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:12:05,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:12:05,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:12:05,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:12:05,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:12:05,662 INFO L87 Difference]: Start difference. First operand has 41 states, 39 states have (on average 1.435897435897436) internal successors, (56), 40 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:05,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:12:05,721 INFO L93 Difference]: Finished difference Result 69 states and 97 transitions. [2024-11-10 02:12:05,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:12:05,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-10 02:12:05,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:12:05,733 INFO L225 Difference]: With dead ends: 69 [2024-11-10 02:12:05,733 INFO L226 Difference]: Without dead ends: 38 [2024-11-10 02:12:05,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:12:05,738 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 02:12:05,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 02:12:05,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-10 02:12:05,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-10 02:12:05,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 37 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:05,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 52 transitions. [2024-11-10 02:12:05,764 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 52 transitions. Word has length 18 [2024-11-10 02:12:05,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:12:05,765 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 52 transitions. [2024-11-10 02:12:05,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:05,765 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2024-11-10 02:12:05,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-10 02:12:05,766 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:12:05,766 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:12:05,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 02:12:05,766 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:12:05,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:12:05,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1154457339, now seen corresponding path program 1 times [2024-11-10 02:12:05,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:12:05,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385881061] [2024-11-10 02:12:05,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:12:05,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:12:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:12:05,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:12:05,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:12:05,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385881061] [2024-11-10 02:12:05,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385881061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:12:05,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:12:05,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:12:05,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972084189] [2024-11-10 02:12:05,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:12:05,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:12:05,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:12:05,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:12:05,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:12:05,917 INFO L87 Difference]: Start difference. First operand 38 states and 52 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:05,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:12:05,973 INFO L93 Difference]: Finished difference Result 68 states and 93 transitions. [2024-11-10 02:12:05,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:12:05,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-10 02:12:05,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:12:05,976 INFO L225 Difference]: With dead ends: 68 [2024-11-10 02:12:05,976 INFO L226 Difference]: Without dead ends: 40 [2024-11-10 02:12:05,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:12:05,978 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 02:12:05,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 02:12:05,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-10 02:12:05,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-11-10 02:12:05,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 39 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:05,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 54 transitions. [2024-11-10 02:12:05,989 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 54 transitions. Word has length 19 [2024-11-10 02:12:05,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:12:05,989 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 54 transitions. [2024-11-10 02:12:05,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:05,990 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2024-11-10 02:12:05,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-10 02:12:05,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:12:05,991 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:12:05,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 02:12:05,992 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:12:05,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:12:05,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1681195576, now seen corresponding path program 1 times [2024-11-10 02:12:05,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:12:05,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389533049] [2024-11-10 02:12:05,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:12:05,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:12:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:12:06,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:12:06,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:12:06,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389533049] [2024-11-10 02:12:06,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389533049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:12:06,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:12:06,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:12:06,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231582507] [2024-11-10 02:12:06,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:12:06,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:12:06,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:12:06,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:12:06,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:12:06,241 INFO L87 Difference]: Start difference. First operand 40 states and 54 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:06,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:12:06,303 INFO L93 Difference]: Finished difference Result 68 states and 92 transitions. [2024-11-10 02:12:06,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:12:06,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-10 02:12:06,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:12:06,305 INFO L225 Difference]: With dead ends: 68 [2024-11-10 02:12:06,307 INFO L226 Difference]: Without dead ends: 38 [2024-11-10 02:12:06,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 02:12:06,309 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 39 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 02:12:06,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 73 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 02:12:06,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-10 02:12:06,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-10 02:12:06,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 37 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:06,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 50 transitions. [2024-11-10 02:12:06,318 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 50 transitions. Word has length 20 [2024-11-10 02:12:06,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:12:06,318 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 50 transitions. [2024-11-10 02:12:06,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:06,319 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 50 transitions. [2024-11-10 02:12:06,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-10 02:12:06,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:12:06,320 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:12:06,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 02:12:06,321 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:12:06,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:12:06,321 INFO L85 PathProgramCache]: Analyzing trace with hash 2034823516, now seen corresponding path program 1 times [2024-11-10 02:12:06,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:12:06,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968575856] [2024-11-10 02:12:06,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:12:06,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:12:06,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 02:12:06,357 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 02:12:06,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 02:12:06,415 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 02:12:06,416 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 02:12:06,416 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-10 02:12:06,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 02:12:06,424 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-10 02:12:06,453 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 02:12:06,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 02:12:06 BoogieIcfgContainer [2024-11-10 02:12:06,461 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 02:12:06,462 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 02:12:06,462 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 02:12:06,462 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 02:12:06,463 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:12:04" (3/4) ... [2024-11-10 02:12:06,466 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-10 02:12:06,467 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 02:12:06,469 INFO L158 Benchmark]: Toolchain (without parser) took 2562.90ms. Allocated memory is still 188.7MB. Free memory was 119.7MB in the beginning and 132.8MB in the end (delta: -13.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 02:12:06,469 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 117.4MB. Free memory is still 78.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 02:12:06,469 INFO L158 Benchmark]: CACSL2BoogieTranslator took 356.78ms. Allocated memory is still 188.7MB. Free memory was 119.4MB in the beginning and 105.0MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-10 02:12:06,470 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.46ms. Allocated memory is still 188.7MB. Free memory was 105.0MB in the beginning and 101.2MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 02:12:06,471 INFO L158 Benchmark]: Boogie Preprocessor took 79.80ms. Allocated memory is still 188.7MB. Free memory was 101.2MB in the beginning and 98.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 02:12:06,472 INFO L158 Benchmark]: IcfgBuilder took 573.73ms. Allocated memory is still 188.7MB. Free memory was 98.4MB in the beginning and 73.6MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-10 02:12:06,472 INFO L158 Benchmark]: TraceAbstraction took 1483.37ms. Allocated memory is still 188.7MB. Free memory was 72.9MB in the beginning and 133.9MB in the end (delta: -60.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 02:12:06,473 INFO L158 Benchmark]: Witness Printer took 5.62ms. Allocated memory is still 188.7MB. Free memory was 133.9MB in the beginning and 132.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 02:12:06,474 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 117.4MB. Free memory is still 78.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 356.78ms. Allocated memory is still 188.7MB. Free memory was 119.4MB in the beginning and 105.0MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.46ms. Allocated memory is still 188.7MB. Free memory was 105.0MB in the beginning and 101.2MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.80ms. Allocated memory is still 188.7MB. Free memory was 101.2MB in the beginning and 98.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 573.73ms. Allocated memory is still 188.7MB. Free memory was 98.4MB in the beginning and 73.6MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1483.37ms. Allocated memory is still 188.7MB. Free memory was 72.9MB in the beginning and 133.9MB in the end (delta: -60.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.62ms. Allocated memory is still 188.7MB. Free memory was 133.9MB in the beginning and 132.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: 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 bitwiseAnd at line 85. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 8); [L30] const SORT_4 msb_SORT_4 = (SORT_4)1 << (8 - 1); [L32] const SORT_8 mask_SORT_8 = (SORT_8)-1 >> (sizeof(SORT_8) * 8 - 32); [L33] const SORT_8 msb_SORT_8 = (SORT_8)1 << (32 - 1); [L35] const SORT_22 mask_SORT_22 = (SORT_22)-1 >> (sizeof(SORT_22) * 8 - 4); [L36] const SORT_22 msb_SORT_22 = (SORT_22)1 << (4 - 1); [L38] const SORT_29 mask_SORT_29 = (SORT_29)-1 >> (sizeof(SORT_29) * 8 - 7); [L39] const SORT_29 msb_SORT_29 = (SORT_29)1 << (7 - 1); [L41] const SORT_4 var_5 = 0; [L42] const SORT_8 var_10 = 148; [L43] const SORT_1 var_14 = 1; [L44] const SORT_1 var_26 = 0; [L46] SORT_1 input_2; [L47] SORT_1 input_3; [L48] SORT_4 input_18; [L49] SORT_4 input_20; [L50] SORT_22 input_23; [L51] SORT_29 input_30; [L52] SORT_29 input_32; [L53] SORT_1 input_36; [L55] EXPR __VERIFIER_nondet_uchar() & mask_SORT_4 VAL [mask_SORT_1=1, mask_SORT_4=255, var_10=148, var_14=1, var_26=0, var_5=0] [L55] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L56] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=255, var_10=148, var_14=1, var_26=0, var_5=0] [L56] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L58] SORT_4 init_7_arg_1 = var_5; [L59] state_6 = init_7_arg_1 [L60] SORT_1 init_28_arg_1 = var_26; [L61] state_27 = init_28_arg_1 VAL [mask_SORT_1=1, mask_SORT_4=255, state_27=0, state_6=0, var_10=148, var_14=1, var_26=0] [L64] input_2 = __VERIFIER_nondet_uchar() [L65] EXPR input_2 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=255, state_27=0, state_6=0, var_10=148, var_14=1, var_26=0] [L65] input_2 = input_2 & mask_SORT_1 [L66] input_3 = __VERIFIER_nondet_uchar() [L67] input_18 = __VERIFIER_nondet_uchar() [L68] input_20 = __VERIFIER_nondet_uchar() [L69] input_23 = __VERIFIER_nondet_uchar() [L70] input_30 = __VERIFIER_nondet_uchar() [L71] input_32 = __VERIFIER_nondet_uchar() [L72] input_36 = __VERIFIER_nondet_uchar() [L75] SORT_4 var_9_arg_0 = state_6; VAL [input_2=0, mask_SORT_1=1, mask_SORT_4=255, state_27=0, state_6=0, var_10=148, var_14=1, var_26=0, var_9_arg_0=0] [L76] EXPR var_9_arg_0 & mask_SORT_4 VAL [input_2=0, mask_SORT_1=1, mask_SORT_4=255, state_27=0, state_6=0, var_10=148, var_14=1, var_26=0] [L76] var_9_arg_0 = var_9_arg_0 & mask_SORT_4 [L77] SORT_8 var_9 = var_9_arg_0; [L78] SORT_8 var_11_arg_0 = var_9; [L79] SORT_8 var_11_arg_1 = var_10; [L80] SORT_1 var_11 = var_11_arg_0 != var_11_arg_1; [L81] SORT_1 var_15_arg_0 = var_11; [L82] SORT_1 var_15 = ~var_15_arg_0; [L83] SORT_1 var_16_arg_0 = var_14; [L84] SORT_1 var_16_arg_1 = var_15; VAL [input_2=0, mask_SORT_1=1, mask_SORT_4=255, state_27=0, state_6=0, var_10=148, var_14=1, var_16_arg_0=1, var_16_arg_1=-2, var_26=0] [L85] EXPR var_16_arg_0 & var_16_arg_1 VAL [input_2=0, mask_SORT_1=1, mask_SORT_4=255, state_27=0, state_6=0, var_10=148, var_14=1, var_26=0] [L85] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L86] EXPR var_16 & mask_SORT_1 VAL [input_2=0, mask_SORT_1=1, mask_SORT_4=255, state_27=0, state_6=0, var_10=148, var_14=1, var_26=0] [L86] var_16 = var_16 & mask_SORT_1 [L87] SORT_1 bad_17_arg_0 = var_16; [L88] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 306 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 187 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 86 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 119 mSDtfsCounter, 86 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 97 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-10 02:12:06,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash bc19904b68b3c373243042dce59996dc4b666d99713ce0cfa66e5db1006d1674 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 02:12:08,737 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 02:12:08,821 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-10 02:12:08,826 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 02:12:08,826 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 02:12:08,858 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 02:12:08,858 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 02:12:08,859 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 02:12:08,859 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 02:12:08,860 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 02:12:08,861 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 02:12:08,861 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 02:12:08,862 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 02:12:08,862 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 02:12:08,864 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 02:12:08,864 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 02:12:08,864 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 02:12:08,865 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 02:12:08,865 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 02:12:08,865 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 02:12:08,865 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 02:12:08,869 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 02:12:08,870 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-10 02:12:08,870 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 02:12:08,870 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-10 02:12:08,870 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 02:12:08,871 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 02:12:08,871 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 02:12:08,871 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 02:12:08,871 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 02:12:08,871 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 02:12:08,872 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 02:12:08,872 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 02:12:08,872 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 02:12:08,872 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 02:12:08,873 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-10 02:12:08,873 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-10 02:12:08,873 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 02:12:08,873 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 02:12:08,874 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 02:12:08,874 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 02:12:08,875 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc19904b68b3c373243042dce59996dc4b666d99713ce0cfa66e5db1006d1674 [2024-11-10 02:12:09,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 02:12:09,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 02:12:09,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 02:12:09,207 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 02:12:09,208 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 02:12:09,209 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c [2024-11-10 02:12:10,873 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 02:12:11,082 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 02:12:11,083 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c [2024-11-10 02:12:11,096 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b58430604/1689dcd5314d46b68e1b7f4d587aaa81/FLAG96ca09773 [2024-11-10 02:12:11,115 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b58430604/1689dcd5314d46b68e1b7f4d587aaa81 [2024-11-10 02:12:11,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 02:12:11,121 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 02:12:11,124 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 02:12:11,124 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 02:12:11,130 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 02:12:11,131 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:12:11" (1/1) ... [2024-11-10 02:12:11,132 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2178a022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:11, skipping insertion in model container [2024-11-10 02:12:11,132 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:12:11" (1/1) ... [2024-11-10 02:12:11,156 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 02:12:11,345 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c[1245,1258] [2024-11-10 02:12:11,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 02:12:11,418 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 02:12:11,431 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c[1245,1258] [2024-11-10 02:12:11,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 02:12:11,493 INFO L204 MainTranslator]: Completed translation [2024-11-10 02:12:11,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:11 WrapperNode [2024-11-10 02:12:11,494 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 02:12:11,495 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 02:12:11,495 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 02:12:11,496 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 02:12:11,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:11" (1/1) ... [2024-11-10 02:12:11,513 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:11" (1/1) ... [2024-11-10 02:12:11,538 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 118 [2024-11-10 02:12:11,539 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 02:12:11,540 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 02:12:11,541 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 02:12:11,541 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 02:12:11,551 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:11" (1/1) ... [2024-11-10 02:12:11,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:11" (1/1) ... [2024-11-10 02:12:11,557 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:11" (1/1) ... [2024-11-10 02:12:11,571 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-10 02:12:11,575 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:11" (1/1) ... [2024-11-10 02:12:11,575 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:11" (1/1) ... [2024-11-10 02:12:11,581 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:11" (1/1) ... [2024-11-10 02:12:11,582 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:11" (1/1) ... [2024-11-10 02:12:11,583 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:11" (1/1) ... [2024-11-10 02:12:11,584 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:11" (1/1) ... [2024-11-10 02:12:11,587 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 02:12:11,591 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 02:12:11,591 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 02:12:11,591 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 02:12:11,592 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:11" (1/1) ... [2024-11-10 02:12:11,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 02:12:11,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:12:11,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 02:12:11,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 02:12:11,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 02:12:11,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-10 02:12:11,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-10 02:12:11,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 02:12:11,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 02:12:11,750 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 02:12:11,751 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 02:12:11,946 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-10 02:12:11,946 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 02:12:11,964 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 02:12:11,965 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 02:12:11,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:12:11 BoogieIcfgContainer [2024-11-10 02:12:11,966 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 02:12:11,968 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 02:12:11,969 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 02:12:11,973 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 02:12:11,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:12:11" (1/3) ... [2024-11-10 02:12:11,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c49d80a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:12:11, skipping insertion in model container [2024-11-10 02:12:11,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:12:11" (2/3) ... [2024-11-10 02:12:11,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c49d80a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:12:11, skipping insertion in model container [2024-11-10 02:12:11,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:12:11" (3/3) ... [2024-11-10 02:12:11,977 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b07.c [2024-11-10 02:12:11,994 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 02:12:11,994 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 02:12:12,053 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 02:12:12,061 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;@1ec3e20b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 02:12:12,062 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 02:12:12,066 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:12,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-10 02:12:12,072 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:12:12,073 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 02:12:12,075 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:12:12,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:12:12,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1271070717, now seen corresponding path program 1 times [2024-11-10 02:12:12,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 02:12:12,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1174962813] [2024-11-10 02:12:12,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:12:12,109 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 02:12:12,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 02:12:12,113 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 02:12:12,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-10 02:12:12,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:12:12,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-10 02:12:12,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 02:12:12,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:12:12,483 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 02:12:12,484 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 02:12:12,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1174962813] [2024-11-10 02:12:12,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1174962813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:12:12,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:12:12,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:12:12,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691637765] [2024-11-10 02:12:12,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:12:12,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:12:12,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 02:12:12,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:12:12,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:12:12,516 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:12,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:12:12,554 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2024-11-10 02:12:12,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:12:12,558 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-10 02:12:12,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:12:12,563 INFO L225 Difference]: With dead ends: 16 [2024-11-10 02:12:12,563 INFO L226 Difference]: Without dead ends: 0 [2024-11-10 02:12:12,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 02:12:12,572 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 02:12:12,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 02:12:12,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-10 02:12:12,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-10 02:12:12,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:12,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-10 02:12:12,595 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2024-11-10 02:12:12,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:12:12,595 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 02:12:12,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:12,596 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-10 02:12:12,596 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-10 02:12:12,598 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-10 02:12:12,604 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-10 02:12:12,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 02:12:12,802 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-10 02:12:12,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-10 02:12:12,821 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 02:12:12,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 02:12:12 BoogieIcfgContainer [2024-11-10 02:12:12,830 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 02:12:12,830 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 02:12:12,831 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 02:12:12,831 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 02:12:12,832 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:12:11" (3/4) ... [2024-11-10 02:12:12,834 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 02:12:12,843 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-11-10 02:12:12,844 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-10 02:12:12,845 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-10 02:12:12,845 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-10 02:12:12,845 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-10 02:12:13,004 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 02:12:13,004 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 02:12:13,004 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 02:12:13,005 INFO L158 Benchmark]: Toolchain (without parser) took 1883.45ms. Allocated memory was 65.0MB in the beginning and 88.1MB in the end (delta: 23.1MB). Free memory was 41.0MB in the beginning and 64.4MB in the end (delta: -23.5MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2024-11-10 02:12:13,005 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 65.0MB. Free memory is still 41.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 02:12:13,005 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.79ms. Allocated memory was 65.0MB in the beginning and 88.1MB in the end (delta: 23.1MB). Free memory was 40.8MB in the beginning and 67.2MB in the end (delta: -26.4MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2024-11-10 02:12:13,005 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.29ms. Allocated memory is still 88.1MB. Free memory was 67.0MB in the beginning and 65.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 02:12:13,006 INFO L158 Benchmark]: Boogie Preprocessor took 47.29ms. Allocated memory is still 88.1MB. Free memory was 65.2MB in the beginning and 63.0MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 02:12:13,006 INFO L158 Benchmark]: IcfgBuilder took 374.93ms. Allocated memory is still 88.1MB. Free memory was 63.0MB in the beginning and 48.1MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-10 02:12:13,006 INFO L158 Benchmark]: TraceAbstraction took 861.34ms. Allocated memory is still 88.1MB. Free memory was 47.4MB in the beginning and 50.0MB in the end (delta: -2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 02:12:13,006 INFO L158 Benchmark]: Witness Printer took 173.73ms. Allocated memory is still 88.1MB. Free memory was 50.0MB in the beginning and 64.4MB in the end (delta: -14.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-10 02:12:13,013 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 65.0MB. Free memory is still 41.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 370.79ms. Allocated memory was 65.0MB in the beginning and 88.1MB in the end (delta: 23.1MB). Free memory was 40.8MB in the beginning and 67.2MB in the end (delta: -26.4MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.29ms. Allocated memory is still 88.1MB. Free memory was 67.0MB in the beginning and 65.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.29ms. Allocated memory is still 88.1MB. Free memory was 65.2MB in the beginning and 63.0MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 374.93ms. Allocated memory is still 88.1MB. Free memory was 63.0MB in the beginning and 48.1MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 861.34ms. Allocated memory is still 88.1MB. Free memory was 47.4MB in the beginning and 50.0MB in the end (delta: -2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 173.73ms. Allocated memory is still 88.1MB. Free memory was 50.0MB in the beginning and 64.4MB in the end (delta: -14.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 3 NumberOfNonLiveVariables, 55 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 62]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-10 02:12:13,041 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE