./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4b2b33802a1e3212162c0e55c40efaad08f7abe5e8690f0efef5fec80921b38 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:00:23,239 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:00:23,310 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:00:23,316 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:00:23,317 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:00:23,344 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:00:23,345 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:00:23,345 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:00:23,346 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:00:23,346 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:00:23,347 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:00:23,347 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:00:23,348 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:00:23,348 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:00:23,348 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:00:23,349 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:00:23,349 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:00:23,349 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:00:23,350 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:00:23,350 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:00:23,351 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:00:23,352 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:00:23,352 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:00:23,352 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:00:23,352 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:00:23,353 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:00:23,353 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:00:23,353 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:00:23,353 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:00:23,353 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:00:23,354 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:00:23,362 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:00:23,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:00:23,363 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:00:23,363 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:00:23,364 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:00:23,364 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:00:23,364 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:00:23,364 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:00:23,365 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:00:23,365 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:00:23,365 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:00:23,366 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4b2b33802a1e3212162c0e55c40efaad08f7abe5e8690f0efef5fec80921b38 [2024-11-16 08:00:23,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:00:23,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:00:23,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:00:23,662 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:00:23,662 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:00:23,663 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2024-11-16 08:00:25,075 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:00:25,247 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:00:25,248 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2024-11-16 08:00:25,254 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/421022136/da4ef6a4fe364740b0a6f0767fe637cd/FLAG35990df3b [2024-11-16 08:00:25,268 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/421022136/da4ef6a4fe364740b0a6f0767fe637cd [2024-11-16 08:00:25,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:00:25,272 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:00:25,273 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:00:25,273 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:00:25,278 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:00:25,279 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:00:25" (1/1) ... [2024-11-16 08:00:25,279 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b8a5cfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:25, skipping insertion in model container [2024-11-16 08:00:25,280 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:00:25" (1/1) ... [2024-11-16 08:00:25,296 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:00:25,493 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c[439,452] [2024-11-16 08:00:25,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:00:25,511 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:00:25,525 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c[439,452] [2024-11-16 08:00:25,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:00:25,545 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:00:25,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:25 WrapperNode [2024-11-16 08:00:25,546 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:00:25,547 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:00:25,547 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:00:25,547 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:00:25,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:25" (1/1) ... [2024-11-16 08:00:25,559 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:25" (1/1) ... [2024-11-16 08:00:25,570 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2024-11-16 08:00:25,571 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:00:25,571 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:00:25,571 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:00:25,571 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:00:25,582 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:25" (1/1) ... [2024-11-16 08:00:25,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:25" (1/1) ... [2024-11-16 08:00:25,583 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:25" (1/1) ... [2024-11-16 08:00:25,593 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 2 writes are split as follows [0, 2]. [2024-11-16 08:00:25,593 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:25" (1/1) ... [2024-11-16 08:00:25,593 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:25" (1/1) ... [2024-11-16 08:00:25,596 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:25" (1/1) ... [2024-11-16 08:00:25,597 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:25" (1/1) ... [2024-11-16 08:00:25,601 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:25" (1/1) ... [2024-11-16 08:00:25,602 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:25" (1/1) ... [2024-11-16 08:00:25,603 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:00:25,604 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:00:25,604 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:00:25,604 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:00:25,605 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:25" (1/1) ... [2024-11-16 08:00:25,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:00:25,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:00:25,634 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 08:00:25,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 08:00:25,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:00:25,675 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2024-11-16 08:00:25,675 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2024-11-16 08:00:25,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:00:25,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 08:00:25,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 08:00:25,676 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2024-11-16 08:00:25,676 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2024-11-16 08:00:25,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 08:00:25,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 08:00:25,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:00:25,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:00:25,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 08:00:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 08:00:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 08:00:25,736 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:00:25,738 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:00:25,852 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-16 08:00:25,854 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:00:25,871 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:00:25,872 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:00:25,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:00:25 BoogieIcfgContainer [2024-11-16 08:00:25,872 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:00:25,874 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:00:25,874 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:00:25,878 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:00:25,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:00:25" (1/3) ... [2024-11-16 08:00:25,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@336cd88c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:00:25, skipping insertion in model container [2024-11-16 08:00:25,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:25" (2/3) ... [2024-11-16 08:00:25,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@336cd88c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:00:25, skipping insertion in model container [2024-11-16 08:00:25,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:00:25" (3/3) ... [2024-11-16 08:00:25,882 INFO L112 eAbstractionObserver]: Analyzing ICFG simple-recursive.c [2024-11-16 08:00:25,902 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:00:25,903 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:00:25,954 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:00:25,962 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;@58841c08, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:00:25,962 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:00:25,968 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 16 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 08:00:25,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-16 08:00:25,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:00:25,976 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:00:25,977 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:00:25,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:00:25,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1256555311, now seen corresponding path program 1 times [2024-11-16 08:00:25,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:00:25,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142734225] [2024-11-16 08:00:25,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:00:25,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:00:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:00:26,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:00:26,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:00:26,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142734225] [2024-11-16 08:00:26,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142734225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:00:26,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:00:26,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:00:26,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267038432] [2024-11-16 08:00:26,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:00:26,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:00:26,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:00:26,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:00:26,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:00:26,540 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 16 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:00:26,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:00:26,635 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2024-11-16 08:00:26,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:00:26,638 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-16 08:00:26,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:00:26,645 INFO L225 Difference]: With dead ends: 36 [2024-11-16 08:00:26,645 INFO L226 Difference]: Without dead ends: 15 [2024-11-16 08:00:26,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:00:26,652 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 2 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:00:26,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 62 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:00:26,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-16 08:00:26,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2024-11-16 08:00:26,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:00:26,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2024-11-16 08:00:26,682 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 8 [2024-11-16 08:00:26,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:00:26,682 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2024-11-16 08:00:26,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:00:26,683 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2024-11-16 08:00:26,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-16 08:00:26,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:00:26,684 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:00:26,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:00:26,685 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:00:26,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:00:26,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1023510651, now seen corresponding path program 1 times [2024-11-16 08:00:26,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:00:26,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461098622] [2024-11-16 08:00:26,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:00:26,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:00:26,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:00:27,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:00:27,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:00:27,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461098622] [2024-11-16 08:00:27,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461098622] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:00:27,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357283144] [2024-11-16 08:00:27,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:00:27,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:00:27,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:00:27,017 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:00:27,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 08:00:27,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:00:27,098 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-16 08:00:27,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:00:27,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-16 08:00:27,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-16 08:00:27,269 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:00:27,269 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:00:27,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:00:27,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357283144] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:00:27,513 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:00:27,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10] total 20 [2024-11-16 08:00:27,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532167092] [2024-11-16 08:00:27,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:00:27,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-16 08:00:27,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:00:27,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-16 08:00:27,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2024-11-16 08:00:27,522 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 20 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 13 states have internal predecessors, (20), 7 states have call successors, (7), 7 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:00:27,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:00:27,743 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2024-11-16 08:00:27,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 08:00:27,744 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 13 states have internal predecessors, (20), 7 states have call successors, (7), 7 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-16 08:00:27,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:00:27,744 INFO L225 Difference]: With dead ends: 30 [2024-11-16 08:00:27,744 INFO L226 Difference]: Without dead ends: 25 [2024-11-16 08:00:27,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=109, Invalid=593, Unknown=0, NotChecked=0, Total=702 [2024-11-16 08:00:27,746 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 11 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:00:27,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 66 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:00:27,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-16 08:00:27,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2024-11-16 08:00:27,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 7 states have call successors, (7), 7 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:00:27,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2024-11-16 08:00:27,752 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 13 [2024-11-16 08:00:27,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:00:27,752 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2024-11-16 08:00:27,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 13 states have internal predecessors, (20), 7 states have call successors, (7), 7 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:00:27,753 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2024-11-16 08:00:27,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-16 08:00:27,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:00:27,753 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:00:27,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 08:00:27,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:00:27,958 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:00:27,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:00:27,959 INFO L85 PathProgramCache]: Analyzing trace with hash 999634491, now seen corresponding path program 2 times [2024-11-16 08:00:27,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:00:27,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300673919] [2024-11-16 08:00:27,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:00:27,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:00:27,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:00:28,513 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:00:28,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:00:28,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300673919] [2024-11-16 08:00:28,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300673919] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:00:28,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796805406] [2024-11-16 08:00:28,515 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 08:00:28,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:00:28,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:00:28,519 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:00:28,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 08:00:28,590 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-16 08:00:28,590 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 08:00:28,593 WARN L253 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 87 conjuncts are in the unsatisfiable core [2024-11-16 08:00:28,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:00:28,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-16 08:00:28,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-16 08:00:28,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-16 08:00:28,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-16 08:00:29,065 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:00:29,065 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:00:29,620 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:00:29,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796805406] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:00:29,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:00:29,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 18] total 48 [2024-11-16 08:00:29,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600009856] [2024-11-16 08:00:29,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:00:29,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-16 08:00:29,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:00:29,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-16 08:00:29,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=2010, Unknown=0, NotChecked=0, Total=2256 [2024-11-16 08:00:29,625 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 48 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 27 states have internal predecessors, (41), 21 states have call successors, (21), 21 states have call predecessors, (21), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:00:30,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:00:30,293 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2024-11-16 08:00:30,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-16 08:00:30,294 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 27 states have internal predecessors, (41), 21 states have call successors, (21), 21 states have call predecessors, (21), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-16 08:00:30,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:00:30,295 INFO L225 Difference]: With dead ends: 50 [2024-11-16 08:00:30,295 INFO L226 Difference]: Without dead ends: 45 [2024-11-16 08:00:30,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1327 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=503, Invalid=3919, Unknown=0, NotChecked=0, Total=4422 [2024-11-16 08:00:30,298 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 31 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:00:30,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 91 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:00:30,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-16 08:00:30,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2024-11-16 08:00:30,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 28 states have internal predecessors, (29), 15 states have call successors, (15), 15 states have call predecessors, (15), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:00:30,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2024-11-16 08:00:30,311 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 23 [2024-11-16 08:00:30,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:00:30,311 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2024-11-16 08:00:30,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 27 states have internal predecessors, (41), 21 states have call successors, (21), 21 states have call predecessors, (21), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:00:30,312 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2024-11-16 08:00:30,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-16 08:00:30,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:00:30,313 INFO L215 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:00:30,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 08:00:30,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-16 08:00:30,514 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:00:30,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:00:30,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1584267707, now seen corresponding path program 3 times [2024-11-16 08:00:30,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:00:30,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677327769] [2024-11-16 08:00:30,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:00:30,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:00:30,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:00:31,826 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:00:31,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:00:31,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677327769] [2024-11-16 08:00:31,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677327769] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:00:31,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491234113] [2024-11-16 08:00:31,828 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-16 08:00:31,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:00:31,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:00:31,830 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:00:31,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 08:00:31,910 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-16 08:00:31,910 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 08:00:31,912 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-16 08:00:31,916 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:00:32,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-16 08:00:32,139 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-16 08:00:32,139 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:00:32,328 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-16 08:00:32,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491234113] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:00:32,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:00:32,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 9, 9] total 42 [2024-11-16 08:00:32,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457626543] [2024-11-16 08:00:32,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:00:32,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-16 08:00:32,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:00:32,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-16 08:00:32,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=1510, Unknown=0, NotChecked=0, Total=1722 [2024-11-16 08:00:32,334 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand has 42 states, 32 states have (on average 1.3125) internal successors, (42), 25 states have internal predecessors, (42), 18 states have call successors, (20), 18 states have call predecessors, (20), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:00:33,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:00:33,145 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2024-11-16 08:00:33,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-16 08:00:33,145 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 32 states have (on average 1.3125) internal successors, (42), 25 states have internal predecessors, (42), 18 states have call successors, (20), 18 states have call predecessors, (20), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2024-11-16 08:00:33,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:00:33,146 INFO L225 Difference]: With dead ends: 51 [2024-11-16 08:00:33,146 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 08:00:33,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 73 SyntacticMatches, 4 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 891 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=682, Invalid=3874, Unknown=0, NotChecked=0, Total=4556 [2024-11-16 08:00:33,149 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 45 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:00:33,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 25 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:00:33,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 08:00:33,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 08:00:33,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:00:33,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 08:00:33,151 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2024-11-16 08:00:33,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:00:33,151 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 08:00:33,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 32 states have (on average 1.3125) internal successors, (42), 25 states have internal predecessors, (42), 18 states have call successors, (20), 18 states have call predecessors, (20), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:00:33,151 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 08:00:33,151 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 08:00:33,156 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fooErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 08:00:33,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-16 08:00:33,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:00:33,361 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1] [2024-11-16 08:00:33,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 08:00:34,091 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 08:00:34,108 WARN L156 FloydHoareUtils]: Requires clause for foo contained old-variable. Original clause: (let ((.cse6 (select |#memory_int#1| |foo_#in~p.base|)) (.cse5 (select |old(#memory_int#1)| |foo_#in~p.base|))) (let ((.cse3 (select .cse5 0)) (.cse2 (not (= |foo_#in~p.offset| 0))) (.cse1 (select .cse6 0)) (.cse4 (select .cse6 |foo_#in~p.offset|)) (.cse0 (select .cse5 |foo_#in~p.offset|))) (and (<= .cse0 20) (or (= .cse1 11) .cse2 (not (= .cse3 11))) (or (<= .cse4 16) (< 16 .cse0)) (or (not (= 13 .cse3)) .cse2 (= .cse1 13)) (or (<= .cse4 17) (< 17 .cse0)) (or (not (= 12 .cse3)) .cse2 (= .cse1 12)) (or (<= .cse4 14) (< 14 .cse0)) (or (not (= .cse3 10)) .cse2 (= .cse1 10)) (<= .cse4 20) (or (<= .cse4 15) (< 15 .cse0))))) Eliminated clause: (let ((.cse5 (select |#memory_int#1| |foo_#in~p.base|))) (let ((.cse1 (select .cse5 |foo_#in~p.offset|))) (and (exists ((|old(#memory_int#1)| (Array Int (Array Int Int)))) (let ((.cse6 (select |old(#memory_int#1)| |foo_#in~p.base|))) (let ((.cse0 (select .cse6 |foo_#in~p.offset|)) (.cse4 (select .cse6 0)) (.cse3 (not (= |foo_#in~p.offset| 0))) (.cse2 (select .cse5 0))) (and (or (< 17 .cse0) (< .cse1 18)) (<= .cse0 20) (or (< .cse1 15) (< 14 .cse0)) (or (= .cse2 11) .cse3 (not (= .cse4 11))) (or (< .cse1 16) (< 15 .cse0)) (or (not (= 13 .cse4)) .cse3 (= .cse2 13)) (or (not (= 12 .cse4)) .cse3 (= .cse2 12)) (or (< .cse1 17) (< 16 .cse0)) (or (not (= .cse4 10)) .cse3 (= .cse2 10)))))) (<= .cse1 20)))) [2024-11-16 08:00:34,122 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-16 08:00:34,125 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-11-16 08:00:34,126 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-11-16 08:00:34,126 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[#in~p!base,]]] [2024-11-16 08:00:34,128 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-11-16 08:00:34,128 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]] [2024-11-16 08:00:34,128 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]],[IdentifierExpression[#in~p!base,]]] [2024-11-16 08:00:34,142 WARN L156 FloydHoareUtils]: Requires clause for plus contained old-variable. Original clause: (let ((.cse5 (select |#memory_int#1| |plus_#in~p.base|)) (.cse6 (select |old(#memory_int#1)| |plus_#in~p.base|))) (let ((.cse0 (not (= |plus_#in~p.offset| 0))) (.cse2 (select .cse6 0)) (.cse1 (select .cse5 0)) (.cse3 (select .cse6 |plus_#in~p.offset|)) (.cse4 (select .cse5 |plus_#in~p.offset|))) (and (or .cse0 (= 12 .cse1) (not (= .cse2 12))) (or (< 13 .cse3) (<= .cse4 13)) (or .cse0 (not (= .cse2 11)) (= 11 .cse1)) (or (< 15 .cse3) (<= .cse4 15)) (or (<= .cse4 16) (< 16 .cse3)) (<= .cse3 19) (or .cse0 (not (= .cse2 10)) (= 10 .cse1)) (<= .cse4 19) (or (< 14 .cse3) (<= .cse4 14))))) Eliminated clause: (let ((.cse6 (select |#memory_int#1| |plus_#in~p.base|))) (let ((.cse4 (select .cse6 |plus_#in~p.offset|))) (and (exists ((|old(#memory_int#1)| (Array Int (Array Int Int)))) (let ((.cse5 (select |old(#memory_int#1)| |plus_#in~p.base|))) (let ((.cse0 (not (= |plus_#in~p.offset| 0))) (.cse2 (select .cse5 0)) (.cse1 (select .cse6 0)) (.cse3 (select .cse5 |plus_#in~p.offset|))) (and (or .cse0 (= 12 .cse1) (not (= .cse2 12))) (or (< 16 .cse3) (< .cse4 17)) (or .cse0 (not (= .cse2 11)) (= 11 .cse1)) (or (< .cse4 14) (< 13 .cse3)) (or (< 15 .cse3) (< .cse4 16)) (<= .cse3 19) (or .cse0 (not (= .cse2 10)) (= 10 .cse1)) (or (< 14 .cse3) (< .cse4 15)))))) (<= .cse4 19)))) [2024-11-16 08:00:34,144 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-16 08:00:34,148 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-11-16 08:00:34,148 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-11-16 08:00:34,148 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[#in~p!base,]]] [2024-11-16 08:00:34,149 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-11-16 08:00:34,149 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]] [2024-11-16 08:00:34,149 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]],[IdentifierExpression[#in~p!base,]]] [2024-11-16 08:00:34,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 08:00:34 BoogieIcfgContainer [2024-11-16 08:00:34,149 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 08:00:34,150 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 08:00:34,150 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 08:00:34,150 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 08:00:34,151 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:00:25" (3/4) ... [2024-11-16 08:00:34,154 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 08:00:34,158 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure foo [2024-11-16 08:00:34,159 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure plus [2024-11-16 08:00:34,162 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-16 08:00:34,162 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-16 08:00:34,163 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 08:00:34,163 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 08:00:34,163 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 08:00:34,243 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 08:00:34,243 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 08:00:34,244 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 08:00:34,244 INFO L158 Benchmark]: Toolchain (without parser) took 8972.98ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 106.2MB in the beginning and 99.7MB in the end (delta: 6.4MB). Peak memory consumption was 59.2MB. Max. memory is 16.1GB. [2024-11-16 08:00:34,245 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 148.9MB. Free memory is still 116.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 08:00:34,245 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.73ms. Allocated memory is still 148.9MB. Free memory was 106.2MB in the beginning and 94.1MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-16 08:00:34,245 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.91ms. Allocated memory is still 148.9MB. Free memory was 94.1MB in the beginning and 92.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 08:00:34,246 INFO L158 Benchmark]: Boogie Preprocessor took 32.38ms. Allocated memory is still 148.9MB. Free memory was 92.9MB in the beginning and 91.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 08:00:34,246 INFO L158 Benchmark]: IcfgBuilder took 268.12ms. Allocated memory is still 148.9MB. Free memory was 91.0MB in the beginning and 79.9MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-16 08:00:34,246 INFO L158 Benchmark]: TraceAbstraction took 8275.24ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 79.4MB in the beginning and 103.9MB in the end (delta: -24.5MB). Peak memory consumption was 80.8MB. Max. memory is 16.1GB. [2024-11-16 08:00:34,246 INFO L158 Benchmark]: Witness Printer took 94.27ms. Allocated memory is still 199.2MB. Free memory was 103.9MB in the beginning and 99.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 08:00:34,248 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 148.9MB. Free memory is still 116.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.73ms. Allocated memory is still 148.9MB. Free memory was 106.2MB in the beginning and 94.1MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.91ms. Allocated memory is still 148.9MB. Free memory was 94.1MB in the beginning and 92.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.38ms. Allocated memory is still 148.9MB. Free memory was 92.9MB in the beginning and 91.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 268.12ms. Allocated memory is still 148.9MB. Free memory was 91.0MB in the beginning and 79.9MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 8275.24ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 79.4MB in the beginning and 103.9MB in the end (delta: -24.5MB). Peak memory consumption was 80.8MB. Max. memory is 16.1GB. * Witness Printer took 94.27ms. Allocated memory is still 199.2MB. Free memory was 103.9MB in the beginning and 99.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[#in~p!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]],[IdentifierExpression[#in~p!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[#in~p!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]],[IdentifierExpression[#in~p!base,]]] * 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: 18]: 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 3 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.4s, OverallIterations: 4, TraceHistogramMax: 8, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 89 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 89 mSDsluCounter, 244 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 198 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 651 IncrementalHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 46 mSDtfsCounter, 651 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 269 GetRequests, 105 SyntacticMatches, 4 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2316 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=3, InterpolantAutomatonStates: 104, 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, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 166 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 235 ConstructedInterpolants, 0 QuantifiedInterpolants, 1308 SizeOfPredicates, 39 NumberOfNonLiveVariables, 369 ConjunctsInSsa, 163 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 236/426 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 RESULT: Ultimate proved your program to be correct! [2024-11-16 08:00:34,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE