./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.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/loop-invgen/id_build.i.v+lhb-reducer.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 2f03a9521f9986f7627623e3bf6c079dbfbe3dc9d9c229ed8d14a2828a7d6850 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 18:33:44,997 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 18:33:45,071 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 18:33:45,076 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 18:33:45,077 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 18:33:45,096 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 18:33:45,096 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 18:33:45,097 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 18:33:45,097 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 18:33:45,098 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 18:33:45,100 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 18:33:45,101 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 18:33:45,101 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 18:33:45,102 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 18:33:45,102 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 18:33:45,102 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 18:33:45,103 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 18:33:45,103 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 18:33:45,103 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 18:33:45,104 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 18:33:45,104 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 18:33:45,108 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 18:33:45,108 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 18:33:45,108 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 18:33:45,108 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 18:33:45,109 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 18:33:45,109 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 18:33:45,109 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 18:33:45,109 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 18:33:45,110 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 18:33:45,110 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 18:33:45,110 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 18:33:45,111 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 18:33:45,111 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 18:33:45,115 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 18:33:45,115 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 18:33:45,116 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 18:33:45,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 18:33:45,116 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 18:33:45,116 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 18:33:45,116 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 18:33:45,117 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 18:33:45,117 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f03a9521f9986f7627623e3bf6c079dbfbe3dc9d9c229ed8d14a2828a7d6850 [2024-10-12 18:33:45,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 18:33:45,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 18:33:45,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 18:33:45,410 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 18:33:45,410 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 18:33:45,411 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-10-12 18:33:46,830 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 18:33:46,986 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 18:33:46,987 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-10-12 18:33:46,993 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57825294d/6d514b7a216e4d329a96c094ac8d5d6d/FLAGb662f3a5f [2024-10-12 18:33:47,397 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57825294d/6d514b7a216e4d329a96c094ac8d5d6d [2024-10-12 18:33:47,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 18:33:47,400 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 18:33:47,401 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 18:33:47,401 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 18:33:47,405 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 18:33:47,406 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:33:47" (1/1) ... [2024-10-12 18:33:47,407 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d8d8cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:47, skipping insertion in model container [2024-10-12 18:33:47,407 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:33:47" (1/1) ... [2024-10-12 18:33:47,425 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 18:33:47,603 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/loop-invgen/id_build.i.v+lhb-reducer.c[854,867] [2024-10-12 18:33:47,612 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/loop-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2024-10-12 18:33:47,614 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/loop-invgen/id_build.i.v+lhb-reducer.c[1375,1388] [2024-10-12 18:33:47,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 18:33:47,635 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 18:33:47,650 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/loop-invgen/id_build.i.v+lhb-reducer.c[854,867] [2024-10-12 18:33:47,653 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/loop-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2024-10-12 18:33:47,656 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/loop-invgen/id_build.i.v+lhb-reducer.c[1375,1388] [2024-10-12 18:33:47,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 18:33:47,674 INFO L204 MainTranslator]: Completed translation [2024-10-12 18:33:47,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:47 WrapperNode [2024-10-12 18:33:47,675 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 18:33:47,676 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 18:33:47,676 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 18:33:47,676 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 18:33:47,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:47" (1/1) ... [2024-10-12 18:33:47,687 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:47" (1/1) ... [2024-10-12 18:33:47,708 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 68 [2024-10-12 18:33:47,709 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 18:33:47,709 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 18:33:47,710 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 18:33:47,710 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 18:33:47,720 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:47" (1/1) ... [2024-10-12 18:33:47,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:47" (1/1) ... [2024-10-12 18:33:47,721 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:47" (1/1) ... [2024-10-12 18:33:47,740 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 18:33:47,740 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:47" (1/1) ... [2024-10-12 18:33:47,741 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:47" (1/1) ... [2024-10-12 18:33:47,749 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:47" (1/1) ... [2024-10-12 18:33:47,766 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:47" (1/1) ... [2024-10-12 18:33:47,770 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:47" (1/1) ... [2024-10-12 18:33:47,770 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:47" (1/1) ... [2024-10-12 18:33:47,773 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 18:33:47,776 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 18:33:47,776 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 18:33:47,776 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 18:33:47,777 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:47" (1/1) ... [2024-10-12 18:33:47,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 18:33:47,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 18:33:47,821 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 18:33:47,828 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 18:33:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 18:33:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 18:33:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 18:33:47,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 18:33:47,936 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 18:33:47,939 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 18:33:48,094 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-10-12 18:33:48,095 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 18:33:48,114 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 18:33:48,115 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-12 18:33:48,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:33:48 BoogieIcfgContainer [2024-10-12 18:33:48,115 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 18:33:48,117 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 18:33:48,117 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 18:33:48,122 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 18:33:48,123 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:33:47" (1/3) ... [2024-10-12 18:33:48,123 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608ffda4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:33:48, skipping insertion in model container [2024-10-12 18:33:48,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:47" (2/3) ... [2024-10-12 18:33:48,125 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608ffda4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:33:48, skipping insertion in model container [2024-10-12 18:33:48,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:33:48" (3/3) ... [2024-10-12 18:33:48,126 INFO L112 eAbstractionObserver]: Analyzing ICFG id_build.i.v+lhb-reducer.c [2024-10-12 18:33:48,141 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 18:33:48,142 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-12 18:33:48,186 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 18:33:48,191 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;@6450e104, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 18:33:48,191 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-10-12 18:33:48,195 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 18:33:48,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-12 18:33:48,200 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:48,200 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-12 18:33:48,201 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 18:33:48,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:48,208 INFO L85 PathProgramCache]: Analyzing trace with hash 75916502, now seen corresponding path program 1 times [2024-10-12 18:33:48,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:48,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342835155] [2024-10-12 18:33:48,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:48,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:48,465 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 18:33:48,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:48,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342835155] [2024-10-12 18:33:48,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342835155] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:33:48,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:33:48,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 18:33:48,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947362550] [2024-10-12 18:33:48,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:33:48,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 18:33:48,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:48,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 18:33:48,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 18:33:48,494 INFO L87 Difference]: Start difference. First operand has 17 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 18:33:48,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:48,545 INFO L93 Difference]: Finished difference Result 19 states and 24 transitions. [2024-10-12 18:33:48,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 18:33:48,547 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-12 18:33:48,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:48,554 INFO L225 Difference]: With dead ends: 19 [2024-10-12 18:33:48,554 INFO L226 Difference]: Without dead ends: 13 [2024-10-12 18:33:48,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 18:33:48,559 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 10 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:48,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 20 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 18:33:48,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-10-12 18:33:48,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-10-12 18:33:48,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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 18:33:48,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2024-10-12 18:33:48,587 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 5 [2024-10-12 18:33:48,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:48,587 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2024-10-12 18:33:48,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 18:33:48,588 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2024-10-12 18:33:48,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-12 18:33:48,588 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:48,588 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:48,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 18:33:48,589 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 18:33:48,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:48,590 INFO L85 PathProgramCache]: Analyzing trace with hash -58560968, now seen corresponding path program 1 times [2024-10-12 18:33:48,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:48,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111177509] [2024-10-12 18:33:48,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:48,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:48,706 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 18:33:48,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:48,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111177509] [2024-10-12 18:33:48,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111177509] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:33:48,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:33:48,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 18:33:48,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566151594] [2024-10-12 18:33:48,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:33:48,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 18:33:48,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:48,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 18:33:48,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 18:33:48,710 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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 18:33:48,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:48,740 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2024-10-12 18:33:48,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 18:33:48,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-12 18:33:48,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:48,742 INFO L225 Difference]: With dead ends: 13 [2024-10-12 18:33:48,742 INFO L226 Difference]: Without dead ends: 11 [2024-10-12 18:33:48,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 18:33:48,743 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:48,744 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 8 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 18:33:48,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2024-10-12 18:33:48,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-10-12 18:33:48,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 18:33:48,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2024-10-12 18:33:48,749 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 7 [2024-10-12 18:33:48,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:48,749 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2024-10-12 18:33:48,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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 18:33:48,750 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2024-10-12 18:33:48,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-12 18:33:48,750 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:48,750 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:48,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 18:33:48,751 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 18:33:48,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:48,751 INFO L85 PathProgramCache]: Analyzing trace with hash -442388484, now seen corresponding path program 1 times [2024-10-12 18:33:48,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:48,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467365232] [2024-10-12 18:33:48,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:48,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:48,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:48,922 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 18:33:48,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:48,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467365232] [2024-10-12 18:33:48,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467365232] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:33:48,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:33:48,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 18:33:48,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852191837] [2024-10-12 18:33:48,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:33:48,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 18:33:48,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:48,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 18:33:48,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 18:33:48,925 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 18:33:48,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:48,994 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2024-10-12 18:33:48,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 18:33:48,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-10-12 18:33:48,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:48,996 INFO L225 Difference]: With dead ends: 11 [2024-10-12 18:33:48,996 INFO L226 Difference]: Without dead ends: 0 [2024-10-12 18:33:48,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 18:33:48,998 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:48,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 18:33:48,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-12 18:33:48,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-12 18:33:49,000 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 18:33:49,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-12 18:33:49,000 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2024-10-12 18:33:49,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:49,000 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 18:33:49,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 18:33:49,001 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-12 18:33:49,001 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-12 18:33:49,004 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-10-12 18:33:49,004 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-10-12 18:33:49,005 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2024-10-12 18:33:49,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 18:33:49,017 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-12 18:33:49,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-12 18:33:49,027 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 18:33:49,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 06:33:49 BoogieIcfgContainer [2024-10-12 18:33:49,038 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 18:33:49,039 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 18:33:49,041 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 18:33:49,041 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 18:33:49,042 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:33:48" (3/4) ... [2024-10-12 18:33:49,043 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-12 18:33:49,050 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-10-12 18:33:49,050 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-12 18:33:49,050 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-12 18:33:49,051 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-12 18:33:49,129 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 18:33:49,129 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-12 18:33:49,129 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 18:33:49,130 INFO L158 Benchmark]: Toolchain (without parser) took 1729.98ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 83.3MB in the beginning and 132.0MB in the end (delta: -48.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 18:33:49,130 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 94.4MB. Free memory is still 56.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 18:33:49,130 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.38ms. Allocated memory is still 136.3MB. Free memory was 82.9MB in the beginning and 70.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-12 18:33:49,131 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.09ms. Allocated memory is still 136.3MB. Free memory was 70.3MB in the beginning and 108.4MB in the end (delta: -38.0MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2024-10-12 18:33:49,131 INFO L158 Benchmark]: Boogie Preprocessor took 65.82ms. Allocated memory is still 136.3MB. Free memory was 108.4MB in the beginning and 106.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 18:33:49,134 INFO L158 Benchmark]: RCFGBuilder took 339.30ms. Allocated memory is still 136.3MB. Free memory was 106.6MB in the beginning and 95.5MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-12 18:33:49,135 INFO L158 Benchmark]: TraceAbstraction took 921.20ms. Allocated memory is still 136.3MB. Free memory was 94.8MB in the beginning and 106.5MB in the end (delta: -11.7MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. [2024-10-12 18:33:49,135 INFO L158 Benchmark]: Witness Printer took 90.32ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 106.4MB in the beginning and 132.0MB in the end (delta: -25.5MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2024-10-12 18:33:49,137 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 94.4MB. Free memory is still 56.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.38ms. Allocated memory is still 136.3MB. Free memory was 82.9MB in the beginning and 70.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.09ms. Allocated memory is still 136.3MB. Free memory was 70.3MB in the beginning and 108.4MB in the end (delta: -38.0MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.82ms. Allocated memory is still 136.3MB. Free memory was 108.4MB in the beginning and 106.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 339.30ms. Allocated memory is still 136.3MB. Free memory was 106.6MB in the beginning and 95.5MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 921.20ms. Allocated memory is still 136.3MB. Free memory was 94.8MB in the beginning and 106.5MB in the end (delta: -11.7MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. * Witness Printer took 90.32ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 106.4MB in the beginning and 132.0MB in the end (delta: -25.5MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 35]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 48]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 64]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 65 IncrementalHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 17 mSDtfsCounter, 65 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 73 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-12 18:33:49,167 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE