./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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-dev-84cfde4 [2024-10-11 03:06:28,996 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:06:29,066 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:06:29,073 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:06:29,074 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:06:29,116 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:06:29,118 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:06:29,119 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:06:29,119 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:06:29,120 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:06:29,120 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:06:29,121 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:06:29,121 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:06:29,122 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:06:29,124 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:06:29,124 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:06:29,125 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:06:29,125 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:06:29,125 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:06:29,126 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:06:29,126 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:06:29,130 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:06:29,130 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:06:29,131 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:06:29,131 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:06:29,131 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:06:29,131 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:06:29,132 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:06:29,132 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:06:29,132 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:06:29,132 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:06:29,133 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:06:29,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:06:29,133 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:06:29,133 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:06:29,140 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:06:29,140 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:06:29,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:06:29,141 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:06:29,142 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:06:29,142 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:06:29,142 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:06:29,143 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4b2b33802a1e3212162c0e55c40efaad08f7abe5e8690f0efef5fec80921b38 [2024-10-11 03:06:29,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:06:29,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:06:29,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:06:29,420 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:06:29,423 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:06:29,424 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2024-10-11 03:06:30,827 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:06:31,018 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:06:31,020 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2024-10-11 03:06:31,030 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/4c4654ee2/70a439a42a6f4f04b9415143e21d00f9/FLAG17f42e528 [2024-10-11 03:06:31,048 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/4c4654ee2/70a439a42a6f4f04b9415143e21d00f9 [2024-10-11 03:06:31,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:06:31,052 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:06:31,056 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:06:31,056 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:06:31,062 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:06:31,062 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:06:31" (1/1) ... [2024-10-11 03:06:31,063 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79ad68f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:31, skipping insertion in model container [2024-10-11 03:06:31,063 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:06:31" (1/1) ... [2024-10-11 03:06:31,082 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:06:31,261 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/recursive-with-pointer/simple-recursive.c[439,452] [2024-10-11 03:06:31,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:06:31,280 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:06:31,290 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/recursive-with-pointer/simple-recursive.c[439,452] [2024-10-11 03:06:31,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:06:31,306 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:06:31,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:31 WrapperNode [2024-10-11 03:06:31,307 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:06:31,308 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:06:31,308 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:06:31,309 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:06:31,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:31" (1/1) ... [2024-10-11 03:06:31,322 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:31" (1/1) ... [2024-10-11 03:06:31,337 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2024-10-11 03:06:31,337 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:06:31,338 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:06:31,338 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:06:31,338 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:06:31,350 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:31" (1/1) ... [2024-10-11 03:06:31,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:31" (1/1) ... [2024-10-11 03:06:31,352 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:31" (1/1) ... [2024-10-11 03:06:31,363 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [6, 2]. 75 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [1, 2]. The 2 writes are split as follows [2, 0]. [2024-10-11 03:06:31,364 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:31" (1/1) ... [2024-10-11 03:06:31,364 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:31" (1/1) ... [2024-10-11 03:06:31,369 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:31" (1/1) ... [2024-10-11 03:06:31,371 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:31" (1/1) ... [2024-10-11 03:06:31,376 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:31" (1/1) ... [2024-10-11 03:06:31,377 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:31" (1/1) ... [2024-10-11 03:06:31,378 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:06:31,379 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:06:31,379 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:06:31,380 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:06:31,385 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:31" (1/1) ... [2024-10-11 03:06:31,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:06:31,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:06:31,414 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 03:06:31,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 03:06:31,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:06:31,459 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2024-10-11 03:06:31,459 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2024-10-11 03:06:31,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:06:31,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 03:06:31,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 03:06:31,460 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2024-10-11 03:06:31,460 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2024-10-11 03:06:31,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 03:06:31,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 03:06:31,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:06:31,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:06:31,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 03:06:31,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 03:06:31,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 03:06:31,532 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:06:31,535 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:06:31,626 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-10-11 03:06:31,627 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:06:31,654 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:06:31,655 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 03:06:31,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:06:31 BoogieIcfgContainer [2024-10-11 03:06:31,655 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:06:31,659 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:06:31,659 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:06:31,663 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:06:31,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:06:31" (1/3) ... [2024-10-11 03:06:31,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eebe71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:06:31, skipping insertion in model container [2024-10-11 03:06:31,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:31" (2/3) ... [2024-10-11 03:06:31,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eebe71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:06:31, skipping insertion in model container [2024-10-11 03:06:31,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:06:31" (3/3) ... [2024-10-11 03:06:31,668 INFO L112 eAbstractionObserver]: Analyzing ICFG simple-recursive.c [2024-10-11 03:06:31,685 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:06:31,685 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:06:31,754 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:06:31,762 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;@20db7952, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:06:31,763 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:06:31,767 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 11 states have internal predecessors, (12), 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) [2024-10-11 03:06:31,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 03:06:31,773 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:06:31,774 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 03:06:31,775 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:06:31,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:06:31,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1859053861, now seen corresponding path program 1 times [2024-10-11 03:06:31,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:06:31,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361937395] [2024-10-11 03:06:31,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:06:31,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:06:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:06:32,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:06:32,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:06:32,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361937395] [2024-10-11 03:06:32,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361937395] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:06:32,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:06:32,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:06:32,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7303654] [2024-10-11 03:06:32,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:06:32,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:06:32,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:06:32,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:06:32,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:06:32,248 INFO L87 Difference]: Start difference. First operand has 16 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 11 states have internal predecessors, (12), 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 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-10-11 03:06:32,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:06:32,334 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2024-10-11 03:06:32,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:06:32,336 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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 6 [2024-10-11 03:06:32,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:06:32,342 INFO L225 Difference]: With dead ends: 28 [2024-10-11 03:06:32,343 INFO L226 Difference]: Without dead ends: 13 [2024-10-11 03:06:32,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:06:32,348 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 2 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:06:32,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 41 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:06:32,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-10-11 03:06:32,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-10-11 03:06:32,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2024-10-11 03:06:32,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-10-11 03:06:32,379 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 6 [2024-10-11 03:06:32,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:06:32,380 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-10-11 03:06:32,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-10-11 03:06:32,380 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-10-11 03:06:32,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-11 03:06:32,381 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:06:32,381 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:06:32,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:06:32,382 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:06:32,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:06:32,383 INFO L85 PathProgramCache]: Analyzing trace with hash -602700150, now seen corresponding path program 1 times [2024-10-11 03:06:32,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:06:32,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207423928] [2024-10-11 03:06:32,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:06:32,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:06:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:06:32,810 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:06:32,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:06:32,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207423928] [2024-10-11 03:06:32,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207423928] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:06:32,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876151275] [2024-10-11 03:06:32,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:06:32,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:06:32,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:06:32,815 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:06:32,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 03:06:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:06:32,898 WARN L253 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-10-11 03:06:32,907 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:06:32,977 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 15 treesize of output 1 [2024-10-11 03:06:33,110 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 36 treesize of output 13 [2024-10-11 03:06:33,206 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:06:33,206 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:06:33,437 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:06:33,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876151275] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:06:33,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:06:33,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 23 [2024-10-11 03:06:33,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552772783] [2024-10-11 03:06:33,442 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:06:33,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-11 03:06:33,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:06:33,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-11 03:06:33,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2024-10-11 03:06:33,448 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 24 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 14 states have internal predecessors, (21), 9 states have call successors, (9), 9 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:06:33,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:06:33,680 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2024-10-11 03:06:33,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 03:06:33,681 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 14 states have internal predecessors, (21), 9 states have call successors, (9), 9 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-10-11 03:06:33,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:06:33,682 INFO L225 Difference]: With dead ends: 27 [2024-10-11 03:06:33,682 INFO L226 Difference]: Without dead ends: 23 [2024-10-11 03:06:33,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=138, Invalid=792, Unknown=0, NotChecked=0, Total=930 [2024-10-11 03:06:33,684 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 11 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:06:33,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 34 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:06:33,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-10-11 03:06:33,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2024-10-11 03:06:33,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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) [2024-10-11 03:06:33,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2024-10-11 03:06:33,690 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 11 [2024-10-11 03:06:33,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:06:33,690 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2024-10-11 03:06:33,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 14 states have internal predecessors, (21), 9 states have call successors, (9), 9 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:06:33,690 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2024-10-11 03:06:33,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-11 03:06:33,691 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:06:33,691 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-10-11 03:06:33,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 03:06:33,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:06:33,896 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:06:33,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:06:33,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1453417322, now seen corresponding path program 2 times [2024-10-11 03:06:33,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:06:33,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780006216] [2024-10-11 03:06:33,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:06:33,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:06:33,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:06:34,535 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:06:34,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:06:34,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780006216] [2024-10-11 03:06:34,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780006216] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:06:34,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238188397] [2024-10-11 03:06:34,536 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 03:06:34,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:06:34,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:06:34,539 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:06:34,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 03:06:34,598 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 03:06:34,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 03:06:34,602 WARN L253 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 87 conjuncts are in the unsatisfiable core [2024-10-11 03:06:34,606 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:06:34,614 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 15 treesize of output 1 [2024-10-11 03:06:34,699 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 36 treesize of output 13 [2024-10-11 03:06:34,719 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 36 treesize of output 13 [2024-10-11 03:06:34,750 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 36 treesize of output 13 [2024-10-11 03:06:34,781 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:06:34,784 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:06:35,195 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:06:35,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238188397] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:06:35,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:06:35,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 17] total 37 [2024-10-11 03:06:35,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322343523] [2024-10-11 03:06:35,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:06:35,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-10-11 03:06:35,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:06:35,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-10-11 03:06:35,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=1231, Unknown=0, NotChecked=0, Total=1406 [2024-10-11 03:06:35,202 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 38 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 21 states have internal predecessors, (33), 16 states have call successors, (16), 16 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:06:35,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:06:35,680 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2024-10-11 03:06:35,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-10-11 03:06:35,681 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 21 states have internal predecessors, (33), 16 states have call successors, (16), 16 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-10-11 03:06:35,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:06:35,682 INFO L225 Difference]: With dead ends: 47 [2024-10-11 03:06:35,682 INFO L226 Difference]: Without dead ends: 43 [2024-10-11 03:06:35,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 800 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=441, Invalid=2751, Unknown=0, NotChecked=0, Total=3192 [2024-10-11 03:06:35,685 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 31 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:06:35,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 30 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:06:35,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-10-11 03:06:35,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2024-10-11 03:06:35,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 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) [2024-10-11 03:06:35,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2024-10-11 03:06:35,693 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 21 [2024-10-11 03:06:35,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:06:35,693 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2024-10-11 03:06:35,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 21 states have internal predecessors, (33), 16 states have call successors, (16), 16 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:06:35,693 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2024-10-11 03:06:35,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-11 03:06:35,694 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:06:35,695 INFO L215 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 1, 1, 1, 1, 1] [2024-10-11 03:06:35,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 03:06:35,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:06:35,896 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:06:35,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:06:35,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1048095446, now seen corresponding path program 3 times [2024-10-11 03:06:35,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:06:35,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676769362] [2024-10-11 03:06:35,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:06:35,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:06:35,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:06:37,116 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:06:37,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:06:37,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676769362] [2024-10-11 03:06:37,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676769362] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:06:37,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510399086] [2024-10-11 03:06:37,117 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 03:06:37,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:06:37,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:06:37,119 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:06:37,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 03:06:37,193 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-11 03:06:37,193 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 03:06:37,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-10-11 03:06:37,200 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:06:37,304 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 36 treesize of output 13 [2024-10-11 03:06:37,424 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-10-11 03:06:37,424 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:06:37,616 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-10-11 03:06:37,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510399086] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:06:37,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:06:37,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 9, 9] total 42 [2024-10-11 03:06:37,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817979502] [2024-10-11 03:06:37,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:06:37,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-10-11 03:06:37,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:06:37,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-10-11 03:06:37,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=1510, Unknown=0, NotChecked=0, Total=1722 [2024-10-11 03:06:37,622 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand has 42 states, 32 states have (on average 1.25) internal successors, (40), 25 states have internal predecessors, (40), 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) [2024-10-11 03:06:38,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:06:38,400 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2024-10-11 03:06:38,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-10-11 03:06:38,400 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 32 states have (on average 1.25) internal successors, (40), 25 states have internal predecessors, (40), 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 41 [2024-10-11 03:06:38,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:06:38,401 INFO L225 Difference]: With dead ends: 49 [2024-10-11 03:06:38,401 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 03:06:38,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 68 SyntacticMatches, 4 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 891 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=682, Invalid=3874, Unknown=0, NotChecked=0, Total=4556 [2024-10-11 03:06:38,409 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 43 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:06:38,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 9 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:06:38,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 03:06:38,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 03:06:38,414 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) [2024-10-11 03:06:38,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 03:06:38,415 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2024-10-11 03:06:38,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:06:38,415 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 03:06:38,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 32 states have (on average 1.25) internal successors, (40), 25 states have internal predecessors, (40), 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) [2024-10-11 03:06:38,415 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 03:06:38,415 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 03:06:38,420 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fooErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 03:06:38,436 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 03:06:38,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:06:38,624 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1] [2024-10-11 03:06:38,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-11 03:06:39,149 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 03:06:39,166 WARN L155 FloydHoareUtils]: Requires clause for foo contained old-variable. Original clause: (let ((.cse4 (select |old(#memory_int#0)| |foo_#in~p.base|)) (.cse5 (select |#memory_int#0| |foo_#in~p.base|))) (let ((.cse3 (not (= |foo_#in~p.offset| 0))) (.cse2 (select .cse5 0)) (.cse0 (select .cse4 |foo_#in~p.offset|)) (.cse1 (select .cse5 |foo_#in~p.offset|))) (and (or (< 17 .cse0) (<= .cse1 17)) (or (<= .cse1 16) (< 16 .cse0)) (<= .cse0 20) (or (= .cse2 10) .cse3 (not (= .cse0 10))) (<= .cse1 20) (or (<= .cse1 12) (< 12 .cse0)) (or .cse3 (<= .cse2 11) (< 11 (select .cse4 0))) (or (< 14 .cse0) (<= .cse1 14)) (or (< 13 .cse0) (<= .cse1 13)) (or (< 15 .cse0) (<= .cse1 15))))) Eliminated clause: (let ((.cse6 (select |#memory_int#0| |foo_#in~p.base|))) (let ((.cse0 (select .cse6 |foo_#in~p.offset|))) (and (exists ((|old(#memory_int#0)| (Array Int (Array Int Int)))) (let ((.cse5 (select |old(#memory_int#0)| |foo_#in~p.base|))) (let ((.cse1 (select .cse5 |foo_#in~p.offset|)) (.cse3 (select .cse6 0)) (.cse4 (select .cse5 0)) (.cse2 (not (= |foo_#in~p.offset| 0)))) (and (or (< .cse0 16) (< 15 .cse1)) (or (< .cse0 15) (< 14 .cse1)) (<= .cse1 20) (or .cse2 (< .cse3 12) (< 11 .cse4)) (or (< .cse0 17) (< 16 .cse1)) (or (< 17 .cse1) (< .cse0 18)) (or (< 13 .cse1) (< .cse0 14)) (or (< .cse0 13) (< 12 .cse1)) (or (= .cse3 10) (not (= .cse4 10)) .cse2))))) (<= .cse0 20)))) [2024-10-11 03:06:39,172 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-11 03:06:39,173 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0 [2024-10-11 03:06:39,173 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] [2024-10-11 03:06:39,173 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[#in~p!base,]]] [2024-10-11 03:06:39,175 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0 [2024-10-11 03:06:39,175 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#0,GLOBAL]] [2024-10-11 03:06:39,175 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#0,GLOBAL]],[IdentifierExpression[#in~p!base,]]] [2024-10-11 03:06:39,184 WARN L155 FloydHoareUtils]: Requires clause for plus contained old-variable. Original clause: (let ((.cse2 (select |#memory_int#0| |plus_#in~p.base|))) (let ((.cse1 (select .cse2 |plus_#in~p.offset|)) (.cse0 (select (select |old(#memory_int#0)| |plus_#in~p.base|) |plus_#in~p.offset|))) (and (or (< 12 .cse0) (<= .cse1 12)) (or (< 14 .cse0) (<= .cse1 14)) (or (< 11 .cse0) (<= .cse1 11)) (or (<= .cse1 13) (< 13 .cse0)) (or (<= .cse1 15) (< 15 .cse0)) (<= .cse0 19) (or (<= .cse1 16) (< 16 .cse0)) (<= .cse1 19) (or (= (select .cse2 0) 10) (not (= .cse0 10)) (not (= |plus_#in~p.offset| 0)))))) Eliminated clause: (let ((.cse1 (select |#memory_int#0| |plus_#in~p.base|))) (let ((.cse3 (select .cse1 |plus_#in~p.offset|))) (and (exists ((|old(#memory_int#0)| (Array Int (Array Int Int)))) (let ((.cse0 (select |old(#memory_int#0)| |plus_#in~p.base|))) (let ((.cse2 (select .cse0 |plus_#in~p.offset|))) (and (or (not (= (select .cse0 0) 10)) (= (select .cse1 0) 10) (not (= |plus_#in~p.offset| 0))) (or (< 12 .cse2) (< .cse3 13)) (or (< 14 .cse2) (< .cse3 15)) (or (< .cse3 17) (< 16 .cse2)) (<= .cse2 19) (or (< .cse3 16) (< 15 .cse2)) (or (< .cse3 14) (< 13 .cse2)) (or (< 11 .cse2) (< .cse3 12)))))) (<= .cse3 19)))) [2024-10-11 03:06:39,186 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-11 03:06:39,186 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0 [2024-10-11 03:06:39,186 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] [2024-10-11 03:06:39,186 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[#in~p!base,]]] [2024-10-11 03:06:39,186 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0 [2024-10-11 03:06:39,187 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#0,GLOBAL]] [2024-10-11 03:06:39,187 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#0,GLOBAL]],[IdentifierExpression[#in~p!base,]]] [2024-10-11 03:06:39,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:06:39 BoogieIcfgContainer [2024-10-11 03:06:39,187 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 03:06:39,188 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 03:06:39,188 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 03:06:39,188 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 03:06:39,189 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:06:31" (3/4) ... [2024-10-11 03:06:39,191 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 03:06:39,195 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2024-10-11 03:06:39,196 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure plus [2024-10-11 03:06:39,199 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-10-11 03:06:39,199 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-11 03:06:39,200 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-11 03:06:39,200 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 03:06:39,275 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 03:06:39,275 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 03:06:39,275 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 03:06:39,276 INFO L158 Benchmark]: Toolchain (without parser) took 8223.99ms. Allocated memory was 165.7MB in the beginning and 205.5MB in the end (delta: 39.8MB). Free memory was 109.7MB in the beginning and 112.0MB in the end (delta: -2.3MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2024-10-11 03:06:39,276 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 165.7MB. Free memory is still 132.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 03:06:39,277 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.42ms. Allocated memory is still 165.7MB. Free memory was 109.7MB in the beginning and 98.0MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-11 03:06:39,277 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.93ms. Allocated memory is still 165.7MB. Free memory was 98.0MB in the beginning and 96.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 03:06:39,277 INFO L158 Benchmark]: Boogie Preprocessor took 40.61ms. Allocated memory is still 165.7MB. Free memory was 96.7MB in the beginning and 95.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 03:06:39,278 INFO L158 Benchmark]: RCFGBuilder took 276.13ms. Allocated memory is still 165.7MB. Free memory was 94.6MB in the beginning and 83.0MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-11 03:06:39,278 INFO L158 Benchmark]: TraceAbstraction took 7528.58ms. Allocated memory was 165.7MB in the beginning and 205.5MB in the end (delta: 39.8MB). Free memory was 82.0MB in the beginning and 116.2MB in the end (delta: -34.2MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2024-10-11 03:06:39,278 INFO L158 Benchmark]: Witness Printer took 87.73ms. Allocated memory is still 205.5MB. Free memory was 116.2MB in the beginning and 112.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 03:06:39,280 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 165.7MB. Free memory is still 132.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.42ms. Allocated memory is still 165.7MB. Free memory was 109.7MB in the beginning and 98.0MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.93ms. Allocated memory is still 165.7MB. Free memory was 98.0MB in the beginning and 96.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.61ms. Allocated memory is still 165.7MB. Free memory was 96.7MB in the beginning and 95.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 276.13ms. Allocated memory is still 165.7MB. Free memory was 94.6MB in the beginning and 83.0MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 7528.58ms. Allocated memory was 165.7MB in the beginning and 205.5MB in the end (delta: 39.8MB). Free memory was 82.0MB in the beginning and 116.2MB in the end (delta: -34.2MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * Witness Printer took 87.73ms. Allocated memory is still 205.5MB. Free memory was 116.2MB in the beginning and 112.0MB 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#0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[#in~p!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#0,GLOBAL]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#0,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#0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[#in~p!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#0,GLOBAL]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#0,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, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.9s, OverallIterations: 4, TraceHistogramMax: 8, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 87 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 114 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 88 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 432 IncrementalHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 26 mSDtfsCounter, 432 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 253 GetRequests, 95 SyntacticMatches, 4 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1880 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 152 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 215 ConstructedInterpolants, 0 QuantifiedInterpolants, 1096 SizeOfPredicates, 39 NumberOfNonLiveVariables, 336 ConjunctsInSsa, 166 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! [2024-10-11 03:06:39,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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