./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 a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/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.dk.eval-mul-div-a046e57-m [2024-10-12 19:47:59,119 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 19:47:59,195 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 19:47:59,201 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 19:47:59,202 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 19:47:59,232 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 19:47:59,233 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 19:47:59,233 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 19:47:59,234 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 19:47:59,235 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 19:47:59,235 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 19:47:59,236 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 19:47:59,236 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 19:47:59,237 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 19:47:59,239 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 19:47:59,239 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 19:47:59,239 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 19:47:59,239 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 19:47:59,240 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 19:47:59,240 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 19:47:59,240 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 19:47:59,244 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 19:47:59,244 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 19:47:59,244 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 19:47:59,244 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 19:47:59,244 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 19:47:59,245 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 19:47:59,245 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 19:47:59,245 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 19:47:59,245 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 19:47:59,246 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 19:47:59,246 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 19:47:59,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:47:59,247 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 19:47:59,247 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 19:47:59,247 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 19:47:59,247 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 19:47:59,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 19:47:59,248 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 19:47:59,248 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 19:47:59,248 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 19:47:59,248 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 19:47:59,248 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4b2b33802a1e3212162c0e55c40efaad08f7abe5e8690f0efef5fec80921b38 [2024-10-12 19:47:59,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 19:47:59,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 19:47:59,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 19:47:59,472 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 19:47:59,473 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 19:47:59,474 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2024-10-12 19:48:00,875 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 19:48:01,050 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 19:48:01,051 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2024-10-12 19:48:01,057 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec5f63f3c/dd07b143b8944e128c42122230f28e75/FLAGfb5ad086d [2024-10-12 19:48:01,444 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec5f63f3c/dd07b143b8944e128c42122230f28e75 [2024-10-12 19:48:01,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 19:48:01,447 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 19:48:01,450 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 19:48:01,450 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 19:48:01,455 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 19:48:01,456 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:48:01" (1/1) ... [2024-10-12 19:48:01,457 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4df26204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:48:01, skipping insertion in model container [2024-10-12 19:48:01,459 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:48:01" (1/1) ... [2024-10-12 19:48:01,476 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 19:48:01,660 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c[439,452] [2024-10-12 19:48:01,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:48:01,674 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 19:48:01,684 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] [2024-10-12 19:48:01,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:48:01,698 INFO L204 MainTranslator]: Completed translation [2024-10-12 19:48:01,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:48:01 WrapperNode [2024-10-12 19:48:01,699 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 19:48:01,700 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 19:48:01,700 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 19:48:01,700 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 19:48:01,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:48:01" (1/1) ... [2024-10-12 19:48:01,712 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:48:01" (1/1) ... [2024-10-12 19:48:01,727 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2024-10-12 19:48:01,727 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 19:48:01,727 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 19:48:01,728 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 19:48:01,728 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 19:48:01,735 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:48:01" (1/1) ... [2024-10-12 19:48:01,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:48:01" (1/1) ... [2024-10-12 19:48:01,736 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:48:01" (1/1) ... [2024-10-12 19:48:01,746 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]. [2024-10-12 19:48:01,746 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:48:01" (1/1) ... [2024-10-12 19:48:01,746 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:48:01" (1/1) ... [2024-10-12 19:48:01,749 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:48:01" (1/1) ... [2024-10-12 19:48:01,751 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:48:01" (1/1) ... [2024-10-12 19:48:01,751 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:48:01" (1/1) ... [2024-10-12 19:48:01,752 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:48:01" (1/1) ... [2024-10-12 19:48:01,753 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 19:48:01,754 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 19:48:01,754 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 19:48:01,754 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 19:48:01,755 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:48:01" (1/1) ... [2024-10-12 19:48:01,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:48:01,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:48:01,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 19:48:01,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 19:48:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 19:48:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2024-10-12 19:48:01,836 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2024-10-12 19:48:01,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 19:48:01,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-12 19:48:01,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-12 19:48:01,837 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2024-10-12 19:48:01,839 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2024-10-12 19:48:01,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-12 19:48:01,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-12 19:48:01,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 19:48:01,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 19:48:01,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-12 19:48:01,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-12 19:48:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-12 19:48:01,919 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 19:48:01,921 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 19:48:02,045 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-10-12 19:48:02,049 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 19:48:02,088 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 19:48:02,092 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-12 19:48:02,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:48:02 BoogieIcfgContainer [2024-10-12 19:48:02,093 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 19:48:02,094 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 19:48:02,095 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 19:48:02,098 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 19:48:02,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:48:01" (1/3) ... [2024-10-12 19:48:02,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e2f2e2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:48:02, skipping insertion in model container [2024-10-12 19:48:02,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:48:01" (2/3) ... [2024-10-12 19:48:02,100 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e2f2e2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:48:02, skipping insertion in model container [2024-10-12 19:48:02,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:48:02" (3/3) ... [2024-10-12 19:48:02,102 INFO L112 eAbstractionObserver]: Analyzing ICFG simple-recursive.c [2024-10-12 19:48:02,117 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 19:48:02,118 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 19:48:02,179 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 19:48:02,186 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;@7cc92b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 19:48:02,187 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 19:48:02,191 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) [2024-10-12 19:48:02,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-12 19:48:02,200 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:48:02,201 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-12 19:48:02,202 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:48:02,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:48:02,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1859053861, now seen corresponding path program 1 times [2024-10-12 19:48:02,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:48:02,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668570526] [2024-10-12 19:48:02,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:48:02,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:48:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:48:02,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:48:02,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:48:02,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668570526] [2024-10-12 19:48:02,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668570526] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:48:02,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:48:02,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 19:48:02,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746358580] [2024-10-12 19:48:02,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:48:02,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:48:02,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:48:02,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:48:02,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 19:48:02,651 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) [2024-10-12 19:48:02,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:48:02,731 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2024-10-12 19:48:02,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 19:48:02,734 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 [2024-10-12 19:48:02,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:48:02,740 INFO L225 Difference]: With dead ends: 28 [2024-10-12 19:48:02,740 INFO L226 Difference]: Without dead ends: 13 [2024-10-12 19:48:02,743 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 [2024-10-12 19:48:02,748 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 [2024-10-12 19:48:02,749 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] [2024-10-12 19:48:02,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-10-12 19:48:02,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-10-12 19:48:02,779 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) [2024-10-12 19:48:02,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-10-12 19:48:02,782 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 6 [2024-10-12 19:48:02,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:48:02,782 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-10-12 19:48:02,783 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) [2024-10-12 19:48:02,783 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-10-12 19:48:02,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-12 19:48:02,784 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:48:02,784 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:48:02,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 19:48:02,784 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:48:02,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:48:02,785 INFO L85 PathProgramCache]: Analyzing trace with hash -602700150, now seen corresponding path program 1 times [2024-10-12 19:48:02,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:48:02,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042025935] [2024-10-12 19:48:02,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:48:02,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:48:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:48:03,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:48:03,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:48:03,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042025935] [2024-10-12 19:48:03,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042025935] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:48:03,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936134622] [2024-10-12 19:48:03,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:48:03,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:48:03,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:48:03,173 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 19:48:03,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 19:48:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:48:03,259 WARN L253 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-10-12 19:48:03,266 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:48:03,321 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 [2024-10-12 19:48:03,482 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 [2024-10-12 19:48:03,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:48:03,597 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 19:48:03,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:48:03,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936134622] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 19:48:03,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 19:48:03,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 23 [2024-10-12 19:48:03,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334425101] [2024-10-12 19:48:03,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 19:48:03,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-12 19:48:03,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:48:03,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-12 19:48:03,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2024-10-12 19:48:03,834 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) [2024-10-12 19:48:04,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:48:04,065 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2024-10-12 19:48:04,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-12 19:48:04,066 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 [2024-10-12 19:48:04,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:48:04,067 INFO L225 Difference]: With dead ends: 27 [2024-10-12 19:48:04,067 INFO L226 Difference]: Without dead ends: 23 [2024-10-12 19:48:04,068 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 [2024-10-12 19:48:04,069 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 [2024-10-12 19:48:04,071 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] [2024-10-12 19:48:04,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-10-12 19:48:04,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2024-10-12 19:48:04,080 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) [2024-10-12 19:48:04,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2024-10-12 19:48:04,081 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 11 [2024-10-12 19:48:04,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:48:04,081 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2024-10-12 19:48:04,082 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) [2024-10-12 19:48:04,082 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2024-10-12 19:48:04,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-12 19:48:04,083 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:48:04,083 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-10-12 19:48:04,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-12 19:48:04,284 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 [2024-10-12 19:48:04,285 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:48:04,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:48:04,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1453417322, now seen corresponding path program 2 times [2024-10-12 19:48:04,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:48:04,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326310692] [2024-10-12 19:48:04,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:48:04,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:48:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:48:04,941 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:48:04,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:48:04,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326310692] [2024-10-12 19:48:04,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326310692] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:48:04,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859290861] [2024-10-12 19:48:04,943 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-12 19:48:04,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:48:04,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:48:04,945 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 19:48:04,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-12 19:48:05,006 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-12 19:48:05,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 19:48:05,010 WARN L253 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 87 conjuncts are in the unsatisfiable core [2024-10-12 19:48:05,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:48:05,022 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 [2024-10-12 19:48:05,104 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 [2024-10-12 19:48:05,126 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 [2024-10-12 19:48:05,146 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 [2024-10-12 19:48:05,175 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:48:05,175 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 19:48:05,563 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:48:05,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859290861] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 19:48:05,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 19:48:05,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 17] total 37 [2024-10-12 19:48:05,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798789770] [2024-10-12 19:48:05,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 19:48:05,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-10-12 19:48:05,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:48:05,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-10-12 19:48:05,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=1231, Unknown=0, NotChecked=0, Total=1406 [2024-10-12 19:48:05,568 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) [2024-10-12 19:48:06,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:48:06,071 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2024-10-12 19:48:06,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-10-12 19:48:06,072 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 [2024-10-12 19:48:06,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:48:06,073 INFO L225 Difference]: With dead ends: 47 [2024-10-12 19:48:06,073 INFO L226 Difference]: Without dead ends: 43 [2024-10-12 19:48:06,074 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 [2024-10-12 19:48:06,077 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 [2024-10-12 19:48:06,077 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] [2024-10-12 19:48:06,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-10-12 19:48:06,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2024-10-12 19:48:06,089 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) [2024-10-12 19:48:06,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2024-10-12 19:48:06,092 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 21 [2024-10-12 19:48:06,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:48:06,092 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2024-10-12 19:48:06,092 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) [2024-10-12 19:48:06,093 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2024-10-12 19:48:06,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-12 19:48:06,094 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:48:06,094 INFO L215 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 1, 1, 1, 1, 1] [2024-10-12 19:48:06,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-12 19:48:06,298 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 [2024-10-12 19:48:06,299 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:48:06,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:48:06,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1048095446, now seen corresponding path program 3 times [2024-10-12 19:48:06,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:48:06,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911393097] [2024-10-12 19:48:06,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:48:06,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:48:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:48:07,732 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:48:07,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:48:07,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911393097] [2024-10-12 19:48:07,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911393097] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:48:07,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370537032] [2024-10-12 19:48:07,732 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-12 19:48:07,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:48:07,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:48:07,735 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) [2024-10-12 19:48:07,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-12 19:48:07,826 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-12 19:48:07,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 19:48:07,828 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-10-12 19:48:07,832 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:48:07,929 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 [2024-10-12 19:48:08,056 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-10-12 19:48:08,056 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 19:48:08,244 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-10-12 19:48:08,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370537032] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 19:48:08,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 19:48:08,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 9, 9] total 42 [2024-10-12 19:48:08,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689421396] [2024-10-12 19:48:08,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 19:48:08,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-10-12 19:48:08,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:48:08,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-10-12 19:48:08,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=1510, Unknown=0, NotChecked=0, Total=1722 [2024-10-12 19:48:08,248 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) [2024-10-12 19:48:09,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:48:09,047 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2024-10-12 19:48:09,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-10-12 19:48:09,048 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 [2024-10-12 19:48:09,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:48:09,048 INFO L225 Difference]: With dead ends: 49 [2024-10-12 19:48:09,049 INFO L226 Difference]: Without dead ends: 0 [2024-10-12 19:48:09,051 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 [2024-10-12 19:48:09,052 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 [2024-10-12 19:48:09,052 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] [2024-10-12 19:48:09,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-12 19:48:09,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-12 19:48:09,054 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) [2024-10-12 19:48:09,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-12 19:48:09,054 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2024-10-12 19:48:09,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:48:09,054 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 19:48:09,055 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) [2024-10-12 19:48:09,055 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-12 19:48:09,055 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-12 19:48:09,058 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fooErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 19:48:09,075 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-12 19:48:09,259 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 [2024-10-12 19:48:09,262 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1] [2024-10-12 19:48:09,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-12 19:48:09,744 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 19:48:09,761 WARN L155 FloydHoareUtils]: Requires clause for foo contained old-variable. Original clause: (let ((.cse4 (select |old(#memory_int#1)| |foo_#in~p.base|)) (.cse5 (select |#memory_int#1| |foo_#in~p.base|))) (let ((.cse1 (not (= |foo_#in~p.offset| 0))) (.cse2 (select .cse5 0)) (.cse0 (select .cse4 |foo_#in~p.offset|)) (.cse3 (select .cse5 |foo_#in~p.offset|))) (and (<= .cse0 20) (or (not (= .cse0 10)) .cse1 (= .cse2 10)) (or (<= .cse3 16) (< 16 .cse0)) (or (< 12 .cse0) (<= .cse3 12)) (or .cse1 (<= .cse2 11) (< 11 (select .cse4 0))) (or (<= .cse3 17) (< 17 .cse0)) (or (<= .cse3 14) (< 14 .cse0)) (<= .cse3 20) (or (<= .cse3 15) (< 15 .cse0)) (or (< 13 .cse0) (<= .cse3 13))))) 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)) (.cse2 (not (= |foo_#in~p.offset| 0))) (.cse3 (select .cse5 0))) (and (or (< 13 .cse0) (< .cse1 14)) (or (< .cse1 13) (< 12 .cse0)) (or (< 17 .cse0) (< .cse1 18)) (<= .cse0 20) (or .cse2 (< .cse3 12) (< 11 .cse4)) (or (< .cse1 15) (< 14 .cse0)) (or (< .cse1 16) (< 15 .cse0)) (or (< .cse1 17) (< 16 .cse0)) (or (not (= .cse4 10)) .cse2 (= .cse3 10)))))) (<= .cse1 20)))) [2024-10-12 19:48:09,771 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-12 19:48:09,771 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-10-12 19:48:09,771 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-10-12 19:48:09,772 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[#in~p!base,]]] [2024-10-12 19:48:09,775 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-10-12 19:48:09,776 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]] [2024-10-12 19:48:09,776 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]],[IdentifierExpression[#in~p!base,]]] [2024-10-12 19:48:09,790 WARN L155 FloydHoareUtils]: Requires clause for plus contained old-variable. Original clause: (let ((.cse2 (select |#memory_int#1| |plus_#in~p.base|))) (let ((.cse0 (select (select |old(#memory_int#1)| |plus_#in~p.base|) |plus_#in~p.offset|)) (.cse1 (select .cse2 |plus_#in~p.offset|))) (and (or (< 13 .cse0) (<= .cse1 13)) (or (not (= .cse0 10)) (not (= |plus_#in~p.offset| 0)) (= 10 (select .cse2 0))) (or (< 15 .cse0) (<= .cse1 15)) (or (<= .cse1 16) (< 16 .cse0)) (<= .cse0 19) (or (< 11 .cse0) (<= .cse1 11)) (<= .cse1 19) (or (< 12 .cse0) (<= .cse1 12)) (or (< 14 .cse0) (<= .cse1 14))))) Eliminated clause: (let ((.cse3 (select |#memory_int#1| |plus_#in~p.base|))) (let ((.cse1 (select .cse3 |plus_#in~p.offset|))) (and (exists ((|old(#memory_int#1)| (Array Int (Array Int Int)))) (let ((.cse2 (select |old(#memory_int#1)| |plus_#in~p.base|))) (let ((.cse0 (select .cse2 |plus_#in~p.offset|))) (and (or (< 16 .cse0) (< .cse1 17)) (or (< .cse1 12) (< 11 .cse0)) (or (< .cse1 14) (< 13 .cse0)) (or (< 15 .cse0) (< .cse1 16)) (or (< 12 .cse0) (< .cse1 13)) (<= .cse0 19) (or (not (= |plus_#in~p.offset| 0)) (not (= (select .cse2 0) 10)) (= 10 (select .cse3 0))) (or (< 14 .cse0) (< .cse1 15)))))) (<= .cse1 19)))) [2024-10-12 19:48:09,795 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-12 19:48:09,795 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-10-12 19:48:09,796 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-10-12 19:48:09,796 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[#in~p!base,]]] [2024-10-12 19:48:09,796 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-10-12 19:48:09,796 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]] [2024-10-12 19:48:09,796 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]],[IdentifierExpression[#in~p!base,]]] [2024-10-12 19:48:09,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 07:48:09 BoogieIcfgContainer [2024-10-12 19:48:09,796 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 19:48:09,797 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 19:48:09,797 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 19:48:09,797 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 19:48:09,798 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:48:02" (3/4) ... [2024-10-12 19:48:09,803 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-12 19:48:09,805 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2024-10-12 19:48:09,806 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure plus [2024-10-12 19:48:09,808 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-10-12 19:48:09,808 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-12 19:48:09,808 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-12 19:48:09,808 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-12 19:48:09,884 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 19:48:09,884 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-12 19:48:09,884 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 19:48:09,885 INFO L158 Benchmark]: Toolchain (without parser) took 8437.51ms. Allocated memory was 153.1MB in the beginning and 222.3MB in the end (delta: 69.2MB). Free memory was 85.8MB in the beginning and 95.2MB in the end (delta: -9.4MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. [2024-10-12 19:48:09,885 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 19:48:09,886 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.46ms. Allocated memory is still 153.1MB. Free memory was 85.7MB in the beginning and 123.8MB in the end (delta: -38.1MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2024-10-12 19:48:09,886 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.36ms. Allocated memory is still 153.1MB. Free memory was 123.8MB in the beginning and 122.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 19:48:09,886 INFO L158 Benchmark]: Boogie Preprocessor took 26.01ms. Allocated memory is still 153.1MB. Free memory was 122.1MB in the beginning and 120.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 19:48:09,887 INFO L158 Benchmark]: RCFGBuilder took 338.60ms. Allocated memory is still 153.1MB. Free memory was 120.5MB in the beginning and 108.0MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-12 19:48:09,887 INFO L158 Benchmark]: TraceAbstraction took 7702.05ms. Allocated memory was 153.1MB in the beginning and 222.3MB in the end (delta: 69.2MB). Free memory was 107.4MB in the beginning and 99.4MB in the end (delta: 8.0MB). Peak memory consumption was 78.9MB. Max. memory is 16.1GB. [2024-10-12 19:48:09,887 INFO L158 Benchmark]: Witness Printer took 87.19ms. Allocated memory is still 222.3MB. Free memory was 99.4MB in the beginning and 95.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 19:48:09,889 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.46ms. Allocated memory is still 153.1MB. Free memory was 85.7MB in the beginning and 123.8MB in the end (delta: -38.1MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.36ms. Allocated memory is still 153.1MB. Free memory was 123.8MB in the beginning and 122.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.01ms. Allocated memory is still 153.1MB. Free memory was 122.1MB in the beginning and 120.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 338.60ms. Allocated memory is still 153.1MB. Free memory was 120.5MB in the beginning and 108.0MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 7702.05ms. Allocated memory was 153.1MB in the beginning and 222.3MB in the end (delta: 69.2MB). Free memory was 107.4MB in the beginning and 99.4MB in the end (delta: 8.0MB). Peak memory consumption was 78.9MB. Max. memory is 16.1GB. * Witness Printer took 87.19ms. Allocated memory is still 222.3MB. Free memory was 99.4MB in the beginning and 95.2MB 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, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.1s, 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.2s 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! [2024-10-12 19:48:09,920 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