./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.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 53546c4dcb2cff2eaca8f311738b2b6b829a702db585862ee7ca5a0b611bb252 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 04:58:31,010 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 04:58:31,080 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-24 04:58:31,084 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 04:58:31,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 04:58:31,117 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 04:58:31,118 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 04:58:31,119 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 04:58:31,119 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 04:58:31,120 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 04:58:31,121 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 04:58:31,122 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 04:58:31,123 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 04:58:31,123 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 04:58:31,127 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 04:58:31,127 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 04:58:31,128 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 04:58:31,128 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 04:58:31,128 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 04:58:31,128 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 04:58:31,129 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 04:58:31,129 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 04:58:31,129 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 04:58:31,129 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 04:58:31,130 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 04:58:31,130 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 04:58:31,130 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 04:58:31,130 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 04:58:31,130 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 04:58:31,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 04:58:31,131 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 04:58:31,131 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 04:58:31,131 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 04:58:31,131 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 04:58:31,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 04:58:31,132 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 04:58:31,132 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 04:58:31,134 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 04:58:31,134 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 04:58:31,135 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53546c4dcb2cff2eaca8f311738b2b6b829a702db585862ee7ca5a0b611bb252 [2024-10-24 04:58:31,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 04:58:31,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 04:58:31,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 04:58:31,418 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 04:58:31,419 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 04:58:31,420 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c [2024-10-24 04:58:32,898 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 04:58:33,103 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 04:58:33,103 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c [2024-10-24 04:58:33,112 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/017781544/a76fbb354bdf46e9896227c6d25bc007/FLAGb0eedc6ca [2024-10-24 04:58:33,468 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/017781544/a76fbb354bdf46e9896227c6d25bc007 [2024-10-24 04:58:33,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 04:58:33,472 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 04:58:33,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 04:58:33,473 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 04:58:33,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 04:58:33,479 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:58:33" (1/1) ... [2024-10-24 04:58:33,480 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f4af292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:33, skipping insertion in model container [2024-10-24 04:58:33,480 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:58:33" (1/1) ... [2024-10-24 04:58:33,508 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 04:58:33,669 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c[1266,1279] [2024-10-24 04:58:33,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 04:58:33,727 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 04:58:33,737 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c[1266,1279] [2024-10-24 04:58:33,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 04:58:33,784 INFO L204 MainTranslator]: Completed translation [2024-10-24 04:58:33,784 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:33 WrapperNode [2024-10-24 04:58:33,785 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 04:58:33,786 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 04:58:33,786 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 04:58:33,786 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 04:58:33,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:33" (1/1) ... [2024-10-24 04:58:33,801 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:33" (1/1) ... [2024-10-24 04:58:33,844 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 263 [2024-10-24 04:58:33,845 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 04:58:33,846 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 04:58:33,846 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 04:58:33,846 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 04:58:33,858 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:33" (1/1) ... [2024-10-24 04:58:33,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:33" (1/1) ... [2024-10-24 04:58:33,867 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:33" (1/1) ... [2024-10-24 04:58:33,928 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 04:58:33,931 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:33" (1/1) ... [2024-10-24 04:58:33,931 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:33" (1/1) ... [2024-10-24 04:58:33,949 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:33" (1/1) ... [2024-10-24 04:58:33,959 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:33" (1/1) ... [2024-10-24 04:58:33,966 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:33" (1/1) ... [2024-10-24 04:58:33,970 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:33" (1/1) ... [2024-10-24 04:58:33,977 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 04:58:33,978 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 04:58:33,979 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 04:58:33,979 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 04:58:33,981 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:33" (1/1) ... [2024-10-24 04:58:34,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 04:58:34,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 04:58:34,037 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 04:58:34,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 04:58:34,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 04:58:34,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 04:58:34,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 04:58:34,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 04:58:34,205 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 04:58:34,207 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 04:58:34,617 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-10-24 04:58:34,619 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 04:58:34,653 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 04:58:34,654 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 04:58:34,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:58:34 BoogieIcfgContainer [2024-10-24 04:58:34,655 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 04:58:34,659 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 04:58:34,660 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 04:58:34,664 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 04:58:34,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 04:58:33" (1/3) ... [2024-10-24 04:58:34,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7725dcc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:58:34, skipping insertion in model container [2024-10-24 04:58:34,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:33" (2/3) ... [2024-10-24 04:58:34,668 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7725dcc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:58:34, skipping insertion in model container [2024-10-24 04:58:34,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:58:34" (3/3) ... [2024-10-24 04:58:34,670 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c [2024-10-24 04:58:34,694 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 04:58:34,694 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 04:58:34,759 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 04:58:34,768 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;@4472ff2a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 04:58:34,769 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 04:58:34,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 41 states have (on average 1.5121951219512195) internal successors, (62), 42 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:58:34,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-24 04:58:34,788 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:58:34,789 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] [2024-10-24 04:58:34,790 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:58:34,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:58:34,797 INFO L85 PathProgramCache]: Analyzing trace with hash -495221930, now seen corresponding path program 1 times [2024-10-24 04:58:34,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:58:34,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112103319] [2024-10-24 04:58:34,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:58:34,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:58:34,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:58:35,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 04:58:35,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:58:35,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112103319] [2024-10-24 04:58:35,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112103319] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:58:35,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:58:35,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 04:58:35,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278550241] [2024-10-24 04:58:35,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:58:35,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 04:58:35,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:58:35,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 04:58:35,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:58:35,433 INFO L87 Difference]: Start difference. First operand has 43 states, 41 states have (on average 1.5121951219512195) internal successors, (62), 42 states have internal predecessors, (62), 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 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) [2024-10-24 04:58:35,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:58:35,483 INFO L93 Difference]: Finished difference Result 74 states and 108 transitions. [2024-10-24 04:58:35,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 04:58:35,489 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 [2024-10-24 04:58:35,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:58:35,496 INFO L225 Difference]: With dead ends: 74 [2024-10-24 04:58:35,497 INFO L226 Difference]: Without dead ends: 44 [2024-10-24 04:58:35,500 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 [2024-10-24 04:58:35,504 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 04:58:35,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 166 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 04:58:35,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-10-24 04:58:35,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-10-24 04:58:35,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.441860465116279) internal successors, (62), 43 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:58:35,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 62 transitions. [2024-10-24 04:58:35,549 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 62 transitions. Word has length 20 [2024-10-24 04:58:35,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:58:35,550 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 62 transitions. [2024-10-24 04:58:35,550 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) [2024-10-24 04:58:35,551 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 62 transitions. [2024-10-24 04:58:35,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-24 04:58:35,552 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:58:35,552 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] [2024-10-24 04:58:35,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 04:58:35,553 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:58:35,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:58:35,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1829684611, now seen corresponding path program 1 times [2024-10-24 04:58:35,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:58:35,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241540950] [2024-10-24 04:58:35,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:58:35,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:58:35,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:58:35,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 04:58:35,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:58:35,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241540950] [2024-10-24 04:58:35,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241540950] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:58:35,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:58:35,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 04:58:35,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441224884] [2024-10-24 04:58:35,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:58:35,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 04:58:35,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:58:35,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 04:58:35,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:58:35,767 INFO L87 Difference]: Start difference. First operand 44 states and 62 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:58:35,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:58:35,798 INFO L93 Difference]: Finished difference Result 77 states and 108 transitions. [2024-10-24 04:58:35,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 04:58:35,799 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 21 [2024-10-24 04:58:35,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:58:35,800 INFO L225 Difference]: With dead ends: 77 [2024-10-24 04:58:35,800 INFO L226 Difference]: Without dead ends: 46 [2024-10-24 04:58:35,801 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 [2024-10-24 04:58:35,802 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 04:58:35,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 163 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 04:58:35,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-10-24 04:58:35,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-10-24 04:58:35,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 45 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:58:35,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 64 transitions. [2024-10-24 04:58:35,809 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 64 transitions. Word has length 21 [2024-10-24 04:58:35,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:58:35,810 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 64 transitions. [2024-10-24 04:58:35,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:58:35,810 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 64 transitions. [2024-10-24 04:58:35,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-24 04:58:35,811 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:58:35,811 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, 1] [2024-10-24 04:58:35,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 04:58:35,812 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:58:35,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:58:35,812 INFO L85 PathProgramCache]: Analyzing trace with hash -212317745, now seen corresponding path program 1 times [2024-10-24 04:58:35,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:58:35,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125920348] [2024-10-24 04:58:35,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:58:35,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:58:35,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:58:36,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 04:58:36,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:58:36,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125920348] [2024-10-24 04:58:36,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125920348] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:58:36,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:58:36,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 04:58:36,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407953718] [2024-10-24 04:58:36,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:58:36,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 04:58:36,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:58:36,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 04:58:36,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:58:36,132 INFO L87 Difference]: Start difference. First operand 46 states and 64 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:58:36,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:58:36,173 INFO L93 Difference]: Finished difference Result 79 states and 109 transitions. [2024-10-24 04:58:36,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 04:58:36,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 22 [2024-10-24 04:58:36,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:58:36,175 INFO L225 Difference]: With dead ends: 79 [2024-10-24 04:58:36,176 INFO L226 Difference]: Without dead ends: 46 [2024-10-24 04:58:36,177 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 [2024-10-24 04:58:36,178 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 6 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 04:58:36,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 151 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 04:58:36,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-10-24 04:58:36,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-10-24 04:58:36,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.4) internal successors, (63), 45 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:58:36,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 63 transitions. [2024-10-24 04:58:36,190 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 63 transitions. Word has length 22 [2024-10-24 04:58:36,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:58:36,190 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 63 transitions. [2024-10-24 04:58:36,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:58:36,190 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 63 transitions. [2024-10-24 04:58:36,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-24 04:58:36,191 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:58:36,191 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, 1, 1] [2024-10-24 04:58:36,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 04:58:36,191 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:58:36,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:58:36,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1377995894, now seen corresponding path program 1 times [2024-10-24 04:58:36,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:58:36,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289625936] [2024-10-24 04:58:36,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:58:36,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:58:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:58:36,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 04:58:36,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:58:36,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289625936] [2024-10-24 04:58:36,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289625936] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:58:36,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:58:36,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 04:58:36,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965465859] [2024-10-24 04:58:36,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:58:36,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 04:58:36,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:58:36,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 04:58:36,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 04:58:36,588 INFO L87 Difference]: Start difference. First operand 46 states and 63 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:58:36,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:58:36,647 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2024-10-24 04:58:36,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 04:58:36,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 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 23 [2024-10-24 04:58:36,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:58:36,651 INFO L225 Difference]: With dead ends: 83 [2024-10-24 04:58:36,651 INFO L226 Difference]: Without dead ends: 50 [2024-10-24 04:58:36,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 04:58:36,653 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 53 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 04:58:36,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 154 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 04:58:36,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-10-24 04:58:36,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2024-10-24 04:58:36,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.375) internal successors, (66), 48 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:58:36,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 66 transitions. [2024-10-24 04:58:36,658 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 66 transitions. Word has length 23 [2024-10-24 04:58:36,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:58:36,659 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 66 transitions. [2024-10-24 04:58:36,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:58:36,659 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 66 transitions. [2024-10-24 04:58:36,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-24 04:58:36,660 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:58:36,660 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, 1, 1, 1] [2024-10-24 04:58:36,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 04:58:36,661 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:58:36,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:58:36,661 INFO L85 PathProgramCache]: Analyzing trace with hash 551146636, now seen corresponding path program 1 times [2024-10-24 04:58:36,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:58:36,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146613692] [2024-10-24 04:58:36,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:58:36,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:58:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 04:58:36,709 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 04:58:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 04:58:36,774 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 04:58:36,776 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 04:58:36,777 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-24 04:58:36,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 04:58:36,784 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-10-24 04:58:36,831 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 04:58:36,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 04:58:36 BoogieIcfgContainer [2024-10-24 04:58:36,835 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 04:58:36,836 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 04:58:36,836 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 04:58:36,836 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 04:58:36,837 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:58:34" (3/4) ... [2024-10-24 04:58:36,841 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 04:58:36,842 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 04:58:36,843 INFO L158 Benchmark]: Toolchain (without parser) took 3370.86ms. Allocated memory is still 172.0MB. Free memory was 103.2MB in the beginning and 59.4MB in the end (delta: 43.8MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. [2024-10-24 04:58:36,844 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 04:58:36,844 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.70ms. Allocated memory is still 172.0MB. Free memory was 103.0MB in the beginning and 88.1MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-24 04:58:36,845 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.21ms. Allocated memory is still 172.0MB. Free memory was 87.9MB in the beginning and 83.3MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-24 04:58:36,845 INFO L158 Benchmark]: Boogie Preprocessor took 131.87ms. Allocated memory is still 172.0MB. Free memory was 83.3MB in the beginning and 142.5MB in the end (delta: -59.1MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2024-10-24 04:58:36,846 INFO L158 Benchmark]: RCFGBuilder took 676.75ms. Allocated memory is still 172.0MB. Free memory was 142.5MB in the beginning and 114.5MB in the end (delta: 27.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-24 04:58:36,847 INFO L158 Benchmark]: TraceAbstraction took 2175.88ms. Allocated memory is still 172.0MB. Free memory was 113.2MB in the beginning and 59.4MB in the end (delta: 53.9MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. [2024-10-24 04:58:36,847 INFO L158 Benchmark]: Witness Printer took 6.28ms. Allocated memory is still 172.0MB. Free memory is still 59.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 04:58:36,848 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 311.70ms. Allocated memory is still 172.0MB. Free memory was 103.0MB in the beginning and 88.1MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.21ms. Allocated memory is still 172.0MB. Free memory was 87.9MB in the beginning and 83.3MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 131.87ms. Allocated memory is still 172.0MB. Free memory was 83.3MB in the beginning and 142.5MB in the end (delta: -59.1MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * RCFGBuilder took 676.75ms. Allocated memory is still 172.0MB. Free memory was 142.5MB in the beginning and 114.5MB in the end (delta: 27.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2175.88ms. Allocated memory is still 172.0MB. Free memory was 113.2MB in the beginning and 59.4MB in the end (delta: 53.9MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. * Witness Printer took 6.28ms. Allocated memory is still 172.0MB. Free memory is still 59.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 bitwiseOr at line 126. 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_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L32] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 32); [L33] const SORT_10 msb_SORT_10 = (SORT_10)1 << (32 - 1); [L35] const SORT_32 mask_SORT_32 = (SORT_32)-1 >> (sizeof(SORT_32) * 8 - 4); [L36] const SORT_32 msb_SORT_32 = (SORT_32)1 << (4 - 1); [L38] const SORT_68 mask_SORT_68 = (SORT_68)-1 >> (sizeof(SORT_68) * 8 - 10); [L39] const SORT_68 msb_SORT_68 = (SORT_68)1 << (10 - 1); [L41] const SORT_1 var_7 = 0; [L42] const SORT_10 var_12 = 0; [L43] const SORT_1 var_22 = 1; [L45] SORT_1 input_2; [L46] SORT_3 input_4; [L47] SORT_1 input_5; [L48] SORT_1 input_6; [L49] SORT_1 input_28; [L50] SORT_1 input_30; [L51] SORT_32 input_33; [L52] SORT_1 input_35; [L53] SORT_32 input_37; [L54] SORT_1 input_39; [L55] SORT_1 input_41; [L56] SORT_1 input_43; [L57] SORT_1 input_45; [L58] SORT_1 input_47; [L59] SORT_1 input_49; [L60] SORT_1 input_51; [L61] SORT_1 input_53; [L62] SORT_3 input_55; [L63] SORT_1 input_58; [L64] SORT_1 input_60; [L65] SORT_1 input_62; [L66] SORT_1 input_64; [L67] SORT_1 input_66; [L68] SORT_68 input_69; [L69] SORT_1 input_71; [L71] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, var_12=0, var_22=1, var_7=0] [L71] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L72] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, var_12=0, var_22=1, var_7=0] [L72] SORT_1 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L73] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, var_12=0, var_22=1, var_7=0] [L73] SORT_1 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] SORT_1 init_9_arg_1 = var_7; [L76] state_8 = init_9_arg_1 [L77] SORT_1 init_16_arg_1 = var_7; [L78] state_15 = init_16_arg_1 [L79] SORT_1 init_27_arg_1 = var_7; [L80] state_26 = init_27_arg_1 VAL [mask_SORT_1=1, state_15=0, state_26=0, state_8=0, var_12=0, var_22=1, var_7=0] [L83] input_2 = __VERIFIER_nondet_uchar() [L84] input_4 = __VERIFIER_nondet_uchar() [L85] input_5 = __VERIFIER_nondet_uchar() [L86] input_6 = __VERIFIER_nondet_uchar() [L87] input_28 = __VERIFIER_nondet_uchar() [L88] input_30 = __VERIFIER_nondet_uchar() [L89] input_33 = __VERIFIER_nondet_uchar() [L90] input_35 = __VERIFIER_nondet_uchar() [L91] input_37 = __VERIFIER_nondet_uchar() [L92] input_39 = __VERIFIER_nondet_uchar() [L93] input_41 = __VERIFIER_nondet_uchar() [L94] input_43 = __VERIFIER_nondet_uchar() [L95] input_45 = __VERIFIER_nondet_uchar() [L96] input_47 = __VERIFIER_nondet_uchar() [L97] input_49 = __VERIFIER_nondet_uchar() [L98] input_51 = __VERIFIER_nondet_uchar() [L99] input_53 = __VERIFIER_nondet_uchar() [L100] input_55 = __VERIFIER_nondet_uchar() [L101] input_58 = __VERIFIER_nondet_uchar() [L102] input_60 = __VERIFIER_nondet_uchar() [L103] input_62 = __VERIFIER_nondet_uchar() [L104] input_64 = __VERIFIER_nondet_uchar() [L105] input_66 = __VERIFIER_nondet_uchar() [L106] input_69 = __VERIFIER_nondet_ushort() [L107] input_71 = __VERIFIER_nondet_uchar() [L110] SORT_1 var_11_arg_0 = state_8; VAL [mask_SORT_1=1, state_15=0, state_26=0, state_8=0, var_11_arg_0=0, var_12=0, var_22=1, var_7=0] [L111] EXPR var_11_arg_0 & mask_SORT_1 VAL [mask_SORT_1=1, state_15=0, state_26=0, state_8=0, var_12=0, var_22=1, var_7=0] [L111] var_11_arg_0 = var_11_arg_0 & mask_SORT_1 [L112] SORT_10 var_11 = var_11_arg_0; [L113] SORT_10 var_13_arg_0 = var_11; [L114] SORT_10 var_13_arg_1 = var_12; [L115] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L116] SORT_1 var_14_arg_0 = var_13; [L117] SORT_1 var_14 = ~var_14_arg_0; [L118] SORT_1 var_17_arg_0 = state_15; VAL [mask_SORT_1=1, state_15=0, state_26=0, state_8=0, var_12=0, var_14=-2, var_17_arg_0=0, var_22=1, var_7=0] [L119] EXPR var_17_arg_0 & mask_SORT_1 VAL [mask_SORT_1=1, state_15=0, state_26=0, state_8=0, var_12=0, var_14=-2, var_22=1, var_7=0] [L119] var_17_arg_0 = var_17_arg_0 & mask_SORT_1 [L120] SORT_10 var_17 = var_17_arg_0; [L121] SORT_10 var_18_arg_0 = var_17; [L122] SORT_10 var_18_arg_1 = var_12; [L123] SORT_1 var_18 = var_18_arg_0 == var_18_arg_1; [L124] SORT_1 var_19_arg_0 = var_14; [L125] SORT_1 var_19_arg_1 = var_18; VAL [mask_SORT_1=1, state_15=0, state_26=0, state_8=0, var_12=0, var_19_arg_0=-2, var_19_arg_1=1, var_22=1, var_7=0] [L126] EXPR var_19_arg_0 | var_19_arg_1 VAL [mask_SORT_1=1, state_15=0, state_26=0, state_8=0, var_12=0, var_22=1, var_7=0] [L126] SORT_1 var_19 = var_19_arg_0 | var_19_arg_1; [L127] SORT_1 var_23_arg_0 = var_19; [L128] SORT_1 var_23 = ~var_23_arg_0; [L129] SORT_1 var_24_arg_0 = var_22; [L130] SORT_1 var_24_arg_1 = var_23; VAL [mask_SORT_1=1, state_15=0, state_26=0, state_8=0, var_12=0, var_22=1, var_24_arg_0=1, var_24_arg_1=-255, var_7=0] [L131] EXPR var_24_arg_0 & var_24_arg_1 VAL [mask_SORT_1=1, state_15=0, state_26=0, state_8=0, var_12=0, var_22=1, var_7=0] [L131] SORT_1 var_24 = var_24_arg_0 & var_24_arg_1; [L132] EXPR var_24 & mask_SORT_1 VAL [mask_SORT_1=1, state_15=0, state_26=0, state_8=0, var_12=0, var_22=1, var_7=0] [L132] var_24 = var_24 & mask_SORT_1 [L133] SORT_1 bad_25_arg_0 = var_24; [L134] CALL __VERIFIER_assert(!(bad_25_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59 mSDsluCounter, 634 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 414 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 68 IncrementalHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 220 mSDtfsCounter, 68 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=4, InterpolantAutomatonStates: 17, 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, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 182 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-24 04:58:36,883 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.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 53546c4dcb2cff2eaca8f311738b2b6b829a702db585862ee7ca5a0b611bb252 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 04:58:39,233 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 04:58:39,323 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-10-24 04:58:39,331 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 04:58:39,332 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 04:58:39,368 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 04:58:39,370 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 04:58:39,371 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 04:58:39,372 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 04:58:39,373 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 04:58:39,374 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 04:58:39,374 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 04:58:39,375 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 04:58:39,375 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 04:58:39,375 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 04:58:39,376 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 04:58:39,376 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 04:58:39,376 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 04:58:39,377 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 04:58:39,377 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 04:58:39,377 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 04:58:39,382 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 04:58:39,382 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 04:58:39,384 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 04:58:39,385 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 04:58:39,385 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 04:58:39,385 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 04:58:39,386 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 04:58:39,386 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 04:58:39,386 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 04:58:39,386 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 04:58:39,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 04:58:39,387 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 04:58:39,388 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 04:58:39,388 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 04:58:39,389 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 04:58:39,390 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 04:58:39,390 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 04:58:39,390 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 04:58:39,390 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 04:58:39,391 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 04:58:39,391 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 04:58:39,392 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53546c4dcb2cff2eaca8f311738b2b6b829a702db585862ee7ca5a0b611bb252 [2024-10-24 04:58:39,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 04:58:39,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 04:58:39,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 04:58:39,787 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 04:58:39,787 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 04:58:39,788 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c [2024-10-24 04:58:41,423 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 04:58:41,664 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 04:58:41,666 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c [2024-10-24 04:58:41,675 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27fd04d15/e3756e7cd0ab4a07af53afbd79bf5ecd/FLAGbae4e83f8 [2024-10-24 04:58:41,687 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27fd04d15/e3756e7cd0ab4a07af53afbd79bf5ecd [2024-10-24 04:58:41,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 04:58:41,690 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 04:58:41,692 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 04:58:41,692 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 04:58:41,699 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 04:58:41,700 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:58:41" (1/1) ... [2024-10-24 04:58:41,701 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48a6eca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:41, skipping insertion in model container [2024-10-24 04:58:41,701 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:58:41" (1/1) ... [2024-10-24 04:58:41,729 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 04:58:41,950 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c[1266,1279] [2024-10-24 04:58:42,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 04:58:42,032 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 04:58:42,047 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c[1266,1279] [2024-10-24 04:58:42,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 04:58:42,104 INFO L204 MainTranslator]: Completed translation [2024-10-24 04:58:42,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:42 WrapperNode [2024-10-24 04:58:42,105 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 04:58:42,106 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 04:58:42,106 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 04:58:42,106 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 04:58:42,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:42" (1/1) ... [2024-10-24 04:58:42,126 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:42" (1/1) ... [2024-10-24 04:58:42,157 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 191 [2024-10-24 04:58:42,158 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 04:58:42,158 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 04:58:42,158 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 04:58:42,159 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 04:58:42,169 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:42" (1/1) ... [2024-10-24 04:58:42,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:42" (1/1) ... [2024-10-24 04:58:42,173 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:42" (1/1) ... [2024-10-24 04:58:42,199 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 04:58:42,200 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:42" (1/1) ... [2024-10-24 04:58:42,200 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:42" (1/1) ... [2024-10-24 04:58:42,225 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:42" (1/1) ... [2024-10-24 04:58:42,231 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:42" (1/1) ... [2024-10-24 04:58:42,232 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:42" (1/1) ... [2024-10-24 04:58:42,235 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:42" (1/1) ... [2024-10-24 04:58:42,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 04:58:42,242 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 04:58:42,242 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 04:58:42,242 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 04:58:42,244 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:42" (1/1) ... [2024-10-24 04:58:42,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 04:58:42,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 04:58:42,278 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 04:58:42,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 04:58:42,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 04:58:42,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 04:58:42,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 04:58:42,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 04:58:42,457 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 04:58:42,459 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 04:58:42,682 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-10-24 04:58:42,682 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 04:58:42,734 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 04:58:42,734 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 04:58:42,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:58:42 BoogieIcfgContainer [2024-10-24 04:58:42,736 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 04:58:42,740 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 04:58:42,740 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 04:58:42,744 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 04:58:42,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 04:58:41" (1/3) ... [2024-10-24 04:58:42,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e932dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:58:42, skipping insertion in model container [2024-10-24 04:58:42,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:58:42" (2/3) ... [2024-10-24 04:58:42,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e932dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:58:42, skipping insertion in model container [2024-10-24 04:58:42,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:58:42" (3/3) ... [2024-10-24 04:58:42,749 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c [2024-10-24 04:58:42,767 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 04:58:42,767 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 04:58:42,830 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 04:58:42,840 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;@3bfd8ffb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 04:58:42,841 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 04:58:42,845 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:58:42,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-24 04:58:42,852 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:58:42,852 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-24 04:58:42,853 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:58:42,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:58:42,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1614770, now seen corresponding path program 1 times [2024-10-24 04:58:42,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 04:58:42,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [360090067] [2024-10-24 04:58:42,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:58:42,874 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 04:58:42,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 04:58:42,878 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 04:58:42,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-24 04:58:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:58:42,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-24 04:58:42,997 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 04:58:43,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 04:58:43,260 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 04:58:43,260 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 04:58:43,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [360090067] [2024-10-24 04:58:43,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [360090067] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:58:43,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:58:43,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 04:58:43,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495857112] [2024-10-24 04:58:43,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:58:43,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 04:58:43,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 04:58:43,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 04:58:43,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:58:43,292 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:58:43,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:58:43,336 INFO L93 Difference]: Finished difference Result 10 states and 13 transitions. [2024-10-24 04:58:43,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 04:58:43,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2024-10-24 04:58:43,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:58:43,345 INFO L225 Difference]: With dead ends: 10 [2024-10-24 04:58:43,345 INFO L226 Difference]: Without dead ends: 0 [2024-10-24 04:58:43,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 04:58:43,352 INFO L432 NwaCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 04:58:43,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 04:58:43,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-24 04:58:43,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-24 04:58:43,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:58:43,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-24 04:58:43,384 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2024-10-24 04:58:43,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:58:43,384 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-24 04:58:43,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:58:43,385 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-24 04:58:43,385 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-24 04:58:43,388 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-24 04:58:43,393 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-24 04:58:43,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 04:58:43,595 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-24 04:58:43,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-24 04:58:43,618 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 04:58:43,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 04:58:43 BoogieIcfgContainer [2024-10-24 04:58:43,632 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 04:58:43,633 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 04:58:43,633 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 04:58:43,633 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 04:58:43,634 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:58:42" (3/4) ... [2024-10-24 04:58:43,637 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 04:58:43,646 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-24 04:58:43,646 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-24 04:58:43,647 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-24 04:58:43,649 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-24 04:58:43,812 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 04:58:43,813 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 04:58:43,813 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 04:58:43,814 INFO L158 Benchmark]: Toolchain (without parser) took 2123.50ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 30.3MB in the beginning and 52.5MB in the end (delta: -22.2MB). Peak memory consumption was 358.5kB. Max. memory is 16.1GB. [2024-10-24 04:58:43,815 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 46.1MB. Free memory was 21.6MB in the beginning and 21.5MB in the end (delta: 52.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 04:58:43,815 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.36ms. Allocated memory is still 62.9MB. Free memory was 30.2MB in the beginning and 31.0MB in the end (delta: -803.4kB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2024-10-24 04:58:43,815 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.84ms. Allocated memory is still 62.9MB. Free memory was 31.0MB in the beginning and 28.7MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 04:58:43,815 INFO L158 Benchmark]: Boogie Preprocessor took 82.90ms. Allocated memory is still 62.9MB. Free memory was 28.7MB in the beginning and 41.8MB in the end (delta: -13.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 04:58:43,816 INFO L158 Benchmark]: RCFGBuilder took 494.09ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 41.8MB in the beginning and 55.6MB in the end (delta: -13.8MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2024-10-24 04:58:43,817 INFO L158 Benchmark]: TraceAbstraction took 892.48ms. Allocated memory is still 79.7MB. Free memory was 54.9MB in the beginning and 52.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2024-10-24 04:58:43,817 INFO L158 Benchmark]: Witness Printer took 180.46ms. Allocated memory is still 79.7MB. Free memory was 51.6MB in the beginning and 52.5MB in the end (delta: -869.1kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 04:58:43,818 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 46.1MB. Free memory was 21.6MB in the beginning and 21.5MB in the end (delta: 52.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 413.36ms. Allocated memory is still 62.9MB. Free memory was 30.2MB in the beginning and 31.0MB in the end (delta: -803.4kB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.84ms. Allocated memory is still 62.9MB. Free memory was 31.0MB in the beginning and 28.7MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.90ms. Allocated memory is still 62.9MB. Free memory was 28.7MB in the beginning and 41.8MB in the end (delta: -13.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 494.09ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 41.8MB in the beginning and 55.6MB in the end (delta: -13.8MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. * TraceAbstraction took 892.48ms. Allocated memory is still 79.7MB. Free memory was 54.9MB in the beginning and 52.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. * Witness Printer took 180.46ms. Allocated memory is still 79.7MB. Free memory was 51.6MB in the beginning and 52.5MB in the end (delta: -869.1kB). Peak memory consumption was 4.2MB. 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, 7 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, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 0 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred 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, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 4 NumberOfNonLiveVariables, 44 ConjunctsInSsa, 19 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: 81]: Loop Invariant Derived loop invariant: (((0 == var_12) && (0 == state_15)) && (1 == mask_SORT_1)) RESULT: Ultimate proved your program to be correct! [2024-10-24 04:58:43,851 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