./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/heap-data/shared_mem2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/heap-data/shared_mem2.i -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 0f2b1437458922f937e4f63e8c97355790d0c2b77a3c021e76d395c8c90c4257 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 22:01:03,489 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 22:01:03,561 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 22:01:03,566 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 22:01:03,567 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 22:01:03,595 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 22:01:03,596 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 22:01:03,596 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 22:01:03,597 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 22:01:03,600 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 22:01:03,600 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 22:01:03,601 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 22:01:03,601 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 22:01:03,601 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 22:01:03,602 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 22:01:03,602 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 22:01:03,604 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 22:01:03,604 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 22:01:03,604 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 22:01:03,605 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 22:01:03,605 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 22:01:03,605 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 22:01:03,606 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 22:01:03,606 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 22:01:03,606 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 22:01:03,607 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 22:01:03,607 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 22:01:03,607 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 22:01:03,607 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 22:01:03,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 22:01:03,608 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 22:01:03,608 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 22:01:03,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 22:01:03,609 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 22:01:03,609 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 22:01:03,609 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 22:01:03,609 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 22:01:03,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 22:01:03,610 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 22:01:03,610 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 22:01:03,610 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 22:01:03,612 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 22:01:03,612 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f2b1437458922f937e4f63e8c97355790d0c2b77a3c021e76d395c8c90c4257 [2024-11-09 22:01:03,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 22:01:03,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 22:01:03,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 22:01:03,926 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 22:01:03,926 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 22:01:03,927 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-data/shared_mem2.i [2024-11-09 22:01:05,354 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 22:01:05,592 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 22:01:05,594 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-data/shared_mem2.i [2024-11-09 22:01:05,608 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efab49e97/0320c444839346f288f2ad2b33c9f4b5/FLAG839382548 [2024-11-09 22:01:05,624 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efab49e97/0320c444839346f288f2ad2b33c9f4b5 [2024-11-09 22:01:05,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 22:01:05,630 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 22:01:05,631 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 22:01:05,632 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 22:01:05,637 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 22:01:05,637 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:01:05" (1/1) ... [2024-11-09 22:01:05,638 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ae068c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:01:05, skipping insertion in model container [2024-11-09 22:01:05,638 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:01:05" (1/1) ... [2024-11-09 22:01:05,675 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 22:01:05,990 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-data/shared_mem2.i[23827,23840] [2024-11-09 22:01:05,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 22:01:06,003 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 22:01:06,044 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-data/shared_mem2.i[23827,23840] [2024-11-09 22:01:06,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 22:01:06,074 INFO L204 MainTranslator]: Completed translation [2024-11-09 22:01:06,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:01:06 WrapperNode [2024-11-09 22:01:06,075 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 22:01:06,076 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 22:01:06,076 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 22:01:06,076 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 22:01:06,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:01:06" (1/1) ... [2024-11-09 22:01:06,095 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:01:06" (1/1) ... [2024-11-09 22:01:06,117 INFO L138 Inliner]: procedures = 121, calls = 27, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 69 [2024-11-09 22:01:06,118 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 22:01:06,118 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 22:01:06,119 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 22:01:06,119 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 22:01:06,129 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:01:06" (1/1) ... [2024-11-09 22:01:06,129 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:01:06" (1/1) ... [2024-11-09 22:01:06,132 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:01:06" (1/1) ... [2024-11-09 22:01:06,146 INFO L175 MemorySlicer]: Split 20 memory accesses to 2 slices as follows [2, 18]. 90 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 9 writes are split as follows [0, 9]. [2024-11-09 22:01:06,147 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:01:06" (1/1) ... [2024-11-09 22:01:06,147 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:01:06" (1/1) ... [2024-11-09 22:01:06,153 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:01:06" (1/1) ... [2024-11-09 22:01:06,153 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:01:06" (1/1) ... [2024-11-09 22:01:06,158 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:01:06" (1/1) ... [2024-11-09 22:01:06,159 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:01:06" (1/1) ... [2024-11-09 22:01:06,166 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 22:01:06,167 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 22:01:06,167 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 22:01:06,167 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 22:01:06,168 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:01:06" (1/1) ... [2024-11-09 22:01:06,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 22:01:06,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 22:01:06,201 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 22:01:06,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 22:01:06,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 22:01:06,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 22:01:06,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 22:01:06,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 22:01:06,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 22:01:06,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 22:01:06,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 22:01:06,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 22:01:06,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 22:01:06,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 22:01:06,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 22:01:06,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 22:01:06,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 22:01:06,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 22:01:06,402 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 22:01:06,404 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 22:01:06,547 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-09 22:01:06,548 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 22:01:06,559 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 22:01:06,559 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 22:01:06,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 10:01:06 BoogieIcfgContainer [2024-11-09 22:01:06,561 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 22:01:06,563 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 22:01:06,563 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 22:01:06,569 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 22:01:06,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:01:05" (1/3) ... [2024-11-09 22:01:06,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52299291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:01:06, skipping insertion in model container [2024-11-09 22:01:06,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:01:06" (2/3) ... [2024-11-09 22:01:06,571 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52299291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:01:06, skipping insertion in model container [2024-11-09 22:01:06,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 10:01:06" (3/3) ... [2024-11-09 22:01:06,573 INFO L112 eAbstractionObserver]: Analyzing ICFG shared_mem2.i [2024-11-09 22:01:06,588 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 22:01:06,588 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 22:01:06,635 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 22:01:06,643 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;@2b505c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 22:01:06,643 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 22:01:06,647 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.5) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 22:01:06,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 22:01:06,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 22:01:06,656 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 22:01:06,657 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 22:01:06,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 22:01:06,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1970071245, now seen corresponding path program 1 times [2024-11-09 22:01:06,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 22:01:06,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249136752] [2024-11-09 22:01:06,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 22:01:06,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 22:01:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 22:01:06,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 22:01:06,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 22:01:06,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249136752] [2024-11-09 22:01:06,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249136752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 22:01:06,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 22:01:06,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 22:01:06,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605778078] [2024-11-09 22:01:06,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 22:01:06,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 22:01:06,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 22:01:06,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 22:01:06,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 22:01:06,933 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.5) internal successors, (24), 17 states have internal predecessors, (24), 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 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 22:01:06,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 22:01:06,946 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2024-11-09 22:01:06,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 22:01:06,948 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 22:01:06,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 22:01:06,955 INFO L225 Difference]: With dead ends: 30 [2024-11-09 22:01:06,955 INFO L226 Difference]: Without dead ends: 15 [2024-11-09 22:01:06,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 22:01:06,963 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 22:01:06,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 22:01:06,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-09 22:01:06,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-09 22:01:06,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 22:01:06,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2024-11-09 22:01:06,994 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 18 transitions. Word has length 8 [2024-11-09 22:01:06,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 22:01:06,994 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 18 transitions. [2024-11-09 22:01:06,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 22:01:06,995 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2024-11-09 22:01:06,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 22:01:06,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 22:01:06,995 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 22:01:06,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 22:01:06,995 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 22:01:06,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 22:01:06,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1888825813, now seen corresponding path program 1 times [2024-11-09 22:01:06,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 22:01:06,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411389223] [2024-11-09 22:01:06,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 22:01:06,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 22:01:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 22:01:07,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 22:01:07,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 22:01:07,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411389223] [2024-11-09 22:01:07,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411389223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 22:01:07,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 22:01:07,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 22:01:07,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967162512] [2024-11-09 22:01:07,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 22:01:07,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 22:01:07,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 22:01:07,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 22:01:07,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 22:01:07,332 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 22:01:07,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 22:01:07,408 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2024-11-09 22:01:07,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 22:01:07,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2024-11-09 22:01:07,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 22:01:07,409 INFO L225 Difference]: With dead ends: 28 [2024-11-09 22:01:07,410 INFO L226 Difference]: Without dead ends: 24 [2024-11-09 22:01:07,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 22:01:07,412 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 7 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 22:01:07,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 52 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 22:01:07,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-09 22:01:07,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-11-09 22:01:07,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 23 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 22:01:07,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2024-11-09 22:01:07,422 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 30 transitions. Word has length 10 [2024-11-09 22:01:07,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 22:01:07,423 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 30 transitions. [2024-11-09 22:01:07,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 22:01:07,423 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2024-11-09 22:01:07,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 22:01:07,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 22:01:07,424 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 22:01:07,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 22:01:07,424 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 22:01:07,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 22:01:07,425 INFO L85 PathProgramCache]: Analyzing trace with hash 463157975, now seen corresponding path program 1 times [2024-11-09 22:01:07,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 22:01:07,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989109098] [2024-11-09 22:01:07,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 22:01:07,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 22:01:07,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 22:01:08,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 22:01:08,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 22:01:08,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989109098] [2024-11-09 22:01:08,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989109098] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 22:01:08,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576707516] [2024-11-09 22:01:08,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 22:01:08,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 22:01:08,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 22:01:08,083 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 22:01:08,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 22:01:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 22:01:08,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-09 22:01:08,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 22:01:08,264 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2024-11-09 22:01:08,286 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 22:01:08,287 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 1 case distinctions, treesize of input 16 treesize of output 15 [2024-11-09 22:01:08,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2024-11-09 22:01:08,309 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 24 treesize of output 9 [2024-11-09 22:01:08,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 10 treesize of output 8 [2024-11-09 22:01:08,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2024-11-09 22:01:08,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-11-09 22:01:08,609 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 22:01:08,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 52 [2024-11-09 22:01:08,685 INFO L349 Elim1Store]: treesize reduction 36, result has 56.6 percent of original size [2024-11-09 22:01:08,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 62 [2024-11-09 22:01:10,645 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 22:01:10,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 70 [2024-11-09 22:01:10,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 22:01:10,739 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 22:01:11,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 22:01:11,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576707516] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 22:01:11,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 22:01:11,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 20 [2024-11-09 22:01:11,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260106204] [2024-11-09 22:01:11,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 22:01:11,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 22:01:11,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 22:01:11,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 22:01:11,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2024-11-09 22:01:11,145 INFO L87 Difference]: Start difference. First operand 24 states and 30 transitions. Second operand has 20 states, 20 states have (on average 1.85) internal successors, (37), 20 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 22:01:15,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 22:01:20,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-09 22:01:21,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 22:01:21,094 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2024-11-09 22:01:21,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 22:01:21,094 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.85) internal successors, (37), 20 states have internal predecessors, (37), 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 14 [2024-11-09 22:01:21,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 22:01:21,096 INFO L225 Difference]: With dead ends: 37 [2024-11-09 22:01:21,096 INFO L226 Difference]: Without dead ends: 33 [2024-11-09 22:01:21,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=150, Invalid=552, Unknown=0, NotChecked=0, Total=702 [2024-11-09 22:01:21,097 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 30 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2024-11-09 22:01:21,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 158 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 137 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2024-11-09 22:01:21,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-09 22:01:21,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27. [2024-11-09 22:01:21,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 22:01:21,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2024-11-09 22:01:21,104 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 14 [2024-11-09 22:01:21,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 22:01:21,105 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2024-11-09 22:01:21,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.85) internal successors, (37), 20 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 22:01:21,105 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2024-11-09 22:01:21,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 22:01:21,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 22:01:21,106 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 22:01:21,123 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 22:01:21,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 22:01:21,311 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 22:01:21,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 22:01:21,311 INFO L85 PathProgramCache]: Analyzing trace with hash 545152275, now seen corresponding path program 1 times [2024-11-09 22:01:21,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 22:01:21,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308934731] [2024-11-09 22:01:21,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 22:01:21,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 22:01:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 22:01:21,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 22:01:21,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 22:01:21,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308934731] [2024-11-09 22:01:21,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308934731] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 22:01:21,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447359443] [2024-11-09 22:01:21,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 22:01:21,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 22:01:21,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 22:01:21,505 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 22:01:21,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 22:01:21,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 22:01:21,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 22:01:21,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 22:01:21,612 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2024-11-09 22:01:21,633 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 22:01:21,634 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 1 case distinctions, treesize of input 16 treesize of output 15 [2024-11-09 22:01:21,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2024-11-09 22:01:21,671 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-09 22:01:21,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 19 treesize of output 18 [2024-11-09 22:01:21,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 22:01:21,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2024-11-09 22:01:21,753 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-09 22:01:21,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 14 [2024-11-09 22:01:21,783 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 22:01:21,784 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 22:01:21,966 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 22:01:21,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1447359443] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 22:01:21,967 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 22:01:21,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 7] total 12 [2024-11-09 22:01:21,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228395270] [2024-11-09 22:01:21,967 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 22:01:21,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 22:01:21,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 22:01:21,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 22:01:21,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-09 22:01:21,969 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 22:01:22,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 22:01:22,138 INFO L93 Difference]: Finished difference Result 44 states and 55 transitions. [2024-11-09 22:01:22,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 22:01:22,138 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 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 14 [2024-11-09 22:01:22,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 22:01:22,139 INFO L225 Difference]: With dead ends: 44 [2024-11-09 22:01:22,139 INFO L226 Difference]: Without dead ends: 40 [2024-11-09 22:01:22,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=173, Unknown=1, NotChecked=0, Total=240 [2024-11-09 22:01:22,140 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 16 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 22:01:22,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 62 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 3 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 22:01:22,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-09 22:01:22,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 27. [2024-11-09 22:01:22,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 22:01:22,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2024-11-09 22:01:22,149 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 14 [2024-11-09 22:01:22,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 22:01:22,149 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2024-11-09 22:01:22,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 22:01:22,149 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2024-11-09 22:01:22,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 22:01:22,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 22:01:22,150 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 22:01:22,163 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 22:01:22,350 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,SelfDestructingSolverStorable3 [2024-11-09 22:01:22,351 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 22:01:22,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 22:01:22,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1385231065, now seen corresponding path program 2 times [2024-11-09 22:01:22,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 22:01:22,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558810100] [2024-11-09 22:01:22,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 22:01:22,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 22:01:22,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 22:01:22,683 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 22:01:22,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 22:01:22,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558810100] [2024-11-09 22:01:22,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558810100] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 22:01:22,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113952346] [2024-11-09 22:01:22,684 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 22:01:22,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 22:01:22,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 22:01:22,685 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 22:01:22,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 22:01:22,783 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 22:01:22,783 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 22:01:22,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-09 22:01:22,788 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 22:01:22,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-09 22:01:22,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-09 22:01:22,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 10 treesize of output 8 [2024-11-09 22:01:22,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 22:01:22,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 32 [2024-11-09 22:01:22,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 1 [2024-11-09 22:01:23,080 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-09 22:01:23,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 54 [2024-11-09 22:01:23,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 16 [2024-11-09 22:01:23,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-11-09 22:01:23,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-09 22:01:23,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-09 22:01:23,301 INFO L349 Elim1Store]: treesize reduction 40, result has 57.9 percent of original size [2024-11-09 22:01:23,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 70 [2024-11-09 22:01:23,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2024-11-09 22:01:23,603 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 22:01:23,603 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 22:01:27,920 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~mem12#1.base_15| Int) (v_ArrVal_312 Int) (v_ArrVal_309 (Array Int Int)) (|v_ULTIMATE.start_main_#t~mem12#1.offset_14| Int) (v_ArrVal_311 (Array Int Int)) (v_ArrVal_310 (Array Int Int))) (let ((.cse2 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)))) (let ((.cse0 (store |c_#memory_int#1| .cse2 v_ArrVal_310))) (let ((.cse1 (select .cse0 |v_ULTIMATE.start_main_#t~mem12#1.base_15|))) (or (< 99 (select (select .cse0 |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|)) (= v_ArrVal_312 100) (< (select (select (store .cse0 |v_ULTIMATE.start_main_#t~mem12#1.base_15| (store .cse1 |v_ULTIMATE.start_main_#t~mem12#1.offset_14| v_ArrVal_312)) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) 100) (< (+ (let ((.cse3 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (select (select .cse0 (select (select (store |c_#memory_$Pointer$#1.base| .cse2 v_ArrVal_309) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3)) (select (select (store |c_#memory_$Pointer$#1.offset| .cse2 v_ArrVal_311) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3))) (select .cse1 |v_ULTIMATE.start_main_#t~mem12#1.offset_14|)) v_ArrVal_312)))))) is different from false [2024-11-09 22:01:27,990 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~mem12#1.base_15| Int) (v_ArrVal_312 Int) (v_ArrVal_309 (Array Int Int)) (|v_ULTIMATE.start_main_#t~mem12#1.offset_14| Int) (v_ArrVal_311 (Array Int Int)) (v_ArrVal_310 (Array Int Int))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~head~0#1.base|) (+ |c_ULTIMATE.start_main_~head~0#1.offset| 4)))) (let ((.cse0 (store |c_#memory_int#1| .cse1 v_ArrVal_310))) (let ((.cse3 (select .cse0 |v_ULTIMATE.start_main_#t~mem12#1.base_15|))) (or (< (+ (let ((.cse2 (+ |c_ULTIMATE.start_main_~head~0#1.offset| 8))) (select (select .cse0 (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_309) |c_ULTIMATE.start_main_~head~0#1.base|) .cse2)) (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_311) |c_ULTIMATE.start_main_~head~0#1.base|) .cse2))) (select .cse3 |v_ULTIMATE.start_main_#t~mem12#1.offset_14|)) v_ArrVal_312) (< 99 (select (select .cse0 |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|)) (= v_ArrVal_312 100) (< (select (select (store .cse0 |v_ULTIMATE.start_main_#t~mem12#1.base_15| (store .cse3 |v_ULTIMATE.start_main_#t~mem12#1.offset_14| v_ArrVal_312)) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) 100)))))) is different from false [2024-11-09 22:01:28,057 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2024-11-09 22:01:28,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113952346] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 22:01:28,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 22:01:28,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 12] total 22 [2024-11-09 22:01:28,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237613378] [2024-11-09 22:01:28,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 22:01:28,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 22:01:28,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 22:01:28,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 22:01:28,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=314, Unknown=3, NotChecked=74, Total=462 [2024-11-09 22:01:28,059 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 22 states, 22 states have (on average 2.0) internal successors, (44), 22 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 22:01:28,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 22:01:28,877 INFO L93 Difference]: Finished difference Result 49 states and 62 transitions. [2024-11-09 22:01:28,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 22:01:28,878 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.0) internal successors, (44), 22 states have internal predecessors, (44), 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 18 [2024-11-09 22:01:28,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 22:01:28,878 INFO L225 Difference]: With dead ends: 49 [2024-11-09 22:01:28,878 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 22:01:28,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=175, Invalid=642, Unknown=3, NotChecked=110, Total=930 [2024-11-09 22:01:28,880 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 23 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 48 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 22:01:28,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 122 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 151 Invalid, 0 Unknown, 48 Unchecked, 0.3s Time] [2024-11-09 22:01:28,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 22:01:28,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 22:01:28,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 22:01:28,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 22:01:28,881 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2024-11-09 22:01:28,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 22:01:28,882 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 22:01:28,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.0) internal successors, (44), 22 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 22:01:28,882 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 22:01:28,882 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 22:01:28,885 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 22:01:28,898 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 22:01:29,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 22:01:29,090 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-11-09 22:01:29,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 22:01:29,162 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 22:01:29,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 10:01:29 BoogieIcfgContainer [2024-11-09 22:01:29,173 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 22:01:29,173 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 22:01:29,173 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 22:01:29,174 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 22:01:29,174 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 10:01:06" (3/4) ... [2024-11-09 22:01:29,176 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-09 22:01:29,184 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-09 22:01:29,184 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 22:01:29,184 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 22:01:29,184 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 22:01:29,270 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 22:01:29,270 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 22:01:29,270 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 22:01:29,271 INFO L158 Benchmark]: Toolchain (without parser) took 23641.95ms. Allocated memory was 159.4MB in the beginning and 234.9MB in the end (delta: 75.5MB). Free memory was 124.5MB in the beginning and 134.8MB in the end (delta: -10.3MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2024-11-09 22:01:29,271 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 104.9MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 22:01:29,272 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.39ms. Allocated memory is still 159.4MB. Free memory was 124.5MB in the beginning and 104.5MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 22:01:29,272 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.27ms. Allocated memory is still 159.4MB. Free memory was 104.5MB in the beginning and 102.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 22:01:29,272 INFO L158 Benchmark]: Boogie Preprocessor took 47.45ms. Allocated memory is still 159.4MB. Free memory was 102.5MB in the beginning and 100.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 22:01:29,272 INFO L158 Benchmark]: IcfgBuilder took 394.68ms. Allocated memory is still 159.4MB. Free memory was 100.4MB in the beginning and 120.4MB in the end (delta: -20.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 22:01:29,273 INFO L158 Benchmark]: TraceAbstraction took 22609.59ms. Allocated memory was 159.4MB in the beginning and 234.9MB in the end (delta: 75.5MB). Free memory was 120.4MB in the beginning and 139.0MB in the end (delta: -18.6MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. [2024-11-09 22:01:29,273 INFO L158 Benchmark]: Witness Printer took 97.32ms. Allocated memory is still 234.9MB. Free memory was 139.0MB in the beginning and 134.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 22:01:29,274 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 104.9MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 444.39ms. Allocated memory is still 159.4MB. Free memory was 124.5MB in the beginning and 104.5MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.27ms. Allocated memory is still 159.4MB. Free memory was 104.5MB in the beginning and 102.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.45ms. Allocated memory is still 159.4MB. Free memory was 102.5MB in the beginning and 100.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 394.68ms. Allocated memory is still 159.4MB. Free memory was 100.4MB in the beginning and 120.4MB in the end (delta: -20.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 22609.59ms. Allocated memory was 159.4MB in the beginning and 234.9MB in the end (delta: 75.5MB). Free memory was 120.4MB in the beginning and 139.0MB in the end (delta: -18.6MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. * Witness Printer took 97.32ms. Allocated memory is still 234.9MB. Free memory was 139.0MB in the beginning and 134.8MB 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.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: 601]: 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, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.5s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 mSolverCounterUnknown, 76 SdHoareTripleChecker+Valid, 9.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 415 SdHoareTripleChecker+Invalid, 8.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 48 IncrementalHoareTripleChecker+Unchecked, 346 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 370 IncrementalHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 69 mSDtfsCounter, 370 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 136 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=3, InterpolantAutomatonStates: 39, 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, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 10.0s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 145 ConstructedInterpolants, 27 QuantifiedInterpolants, 3879 SizeOfPredicates, 17 NumberOfNonLiveVariables, 463 ConjunctsInSsa, 99 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 7/36 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Location Invariant Derived location invariant: null - InvariantResult [Line: 595]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-09 22:01:29,360 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