./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-58.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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/hardness-nfm22/hardness_operatoramount_amount25_file-58.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 8bff6c0f8e15029ad0c69d66a327b450bc06692e04fabba5a0800800584ec965 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 06:30:29,249 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 06:30:29,323 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-12 06:30:29,331 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 06:30:29,333 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 06:30:29,361 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 06:30:29,362 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 06:30:29,363 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 06:30:29,363 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 06:30:29,365 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 06:30:29,366 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 06:30:29,366 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 06:30:29,367 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 06:30:29,370 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 06:30:29,371 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 06:30:29,371 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 06:30:29,371 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 06:30:29,371 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 06:30:29,372 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 06:30:29,372 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 06:30:29,372 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 06:30:29,373 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 06:30:29,373 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 06:30:29,373 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 06:30:29,373 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 06:30:29,374 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 06:30:29,374 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 06:30:29,374 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 06:30:29,374 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 06:30:29,375 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 06:30:29,375 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 06:30:29,375 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 06:30:29,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 06:30:29,376 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 06:30:29,376 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 06:30:29,378 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 06:30:29,378 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 06:30:29,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 06:30:29,379 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 06:30:29,380 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 06:30:29,380 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 06:30:29,380 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 06:30:29,381 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8bff6c0f8e15029ad0c69d66a327b450bc06692e04fabba5a0800800584ec965 [2024-11-12 06:30:29,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 06:30:29,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 06:30:29,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 06:30:29,691 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 06:30:29,692 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 06:30:29,693 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-58.i [2024-11-12 06:30:31,143 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 06:30:31,346 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 06:30:31,346 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-58.i [2024-11-12 06:30:31,354 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02c3e5edb/7cea2c26862049beaa1cced54e3658a6/FLAG28b02aea9 [2024-11-12 06:30:31,730 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02c3e5edb/7cea2c26862049beaa1cced54e3658a6 [2024-11-12 06:30:31,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 06:30:31,735 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 06:30:31,736 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 06:30:31,736 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 06:30:31,741 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 06:30:31,742 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:30:31" (1/1) ... [2024-11-12 06:30:31,742 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36da387e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:31, skipping insertion in model container [2024-11-12 06:30:31,743 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:30:31" (1/1) ... [2024-11-12 06:30:31,764 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 06:30:31,936 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/hardness-nfm22/hardness_operatoramount_amount25_file-58.i[915,928] [2024-11-12 06:30:31,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 06:30:31,990 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 06:30:32,003 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/hardness-nfm22/hardness_operatoramount_amount25_file-58.i[915,928] [2024-11-12 06:30:32,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 06:30:32,045 INFO L204 MainTranslator]: Completed translation [2024-11-12 06:30:32,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:32 WrapperNode [2024-11-12 06:30:32,049 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 06:30:32,050 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 06:30:32,050 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 06:30:32,050 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 06:30:32,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:32" (1/1) ... [2024-11-12 06:30:32,069 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:32" (1/1) ... [2024-11-12 06:30:32,105 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 96 [2024-11-12 06:30:32,105 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 06:30:32,106 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 06:30:32,106 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 06:30:32,107 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 06:30:32,118 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:32" (1/1) ... [2024-11-12 06:30:32,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:32" (1/1) ... [2024-11-12 06:30:32,124 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:32" (1/1) ... [2024-11-12 06:30:32,145 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]. [2024-11-12 06:30:32,145 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:32" (1/1) ... [2024-11-12 06:30:32,145 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:32" (1/1) ... [2024-11-12 06:30:32,152 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:32" (1/1) ... [2024-11-12 06:30:32,154 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:32" (1/1) ... [2024-11-12 06:30:32,156 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:32" (1/1) ... [2024-11-12 06:30:32,157 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:32" (1/1) ... [2024-11-12 06:30:32,160 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 06:30:32,161 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 06:30:32,161 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 06:30:32,161 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 06:30:32,162 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:32" (1/1) ... [2024-11-12 06:30:32,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 06:30:32,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 06:30:32,205 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) [2024-11-12 06:30:32,209 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 [2024-11-12 06:30:32,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 06:30:32,262 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 06:30:32,262 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 06:30:32,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 06:30:32,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 06:30:32,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 06:30:32,344 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 06:30:32,347 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 06:30:32,617 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-12 06:30:32,617 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 06:30:32,629 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 06:30:32,629 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 06:30:32,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:30:32 BoogieIcfgContainer [2024-11-12 06:30:32,629 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 06:30:32,632 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 06:30:32,632 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 06:30:32,635 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 06:30:32,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:30:31" (1/3) ... [2024-11-12 06:30:32,637 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4024fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:30:32, skipping insertion in model container [2024-11-12 06:30:32,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:32" (2/3) ... [2024-11-12 06:30:32,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4024fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:30:32, skipping insertion in model container [2024-11-12 06:30:32,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:30:32" (3/3) ... [2024-11-12 06:30:32,640 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-58.i [2024-11-12 06:30:32,654 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 06:30:32,654 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 06:30:32,708 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 06:30:32,714 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;@eeca73a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 06:30:32,714 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 06:30:32,718 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-12 06:30:32,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-12 06:30:32,727 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 06:30:32,728 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 06:30:32,729 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 06:30:32,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 06:30:32,733 INFO L85 PathProgramCache]: Analyzing trace with hash -576999655, now seen corresponding path program 1 times [2024-11-12 06:30:32,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 06:30:32,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585077553] [2024-11-12 06:30:32,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 06:30:32,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 06:30:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 06:30:33,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1915464210] [2024-11-12 06:30:33,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 06:30:33,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 06:30:33,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 06:30:33,066 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) [2024-11-12 06:30:33,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 06:30:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 06:30:33,232 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-12 06:30:33,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 06:30:34,083 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 182 proven. 27 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-12 06:30:34,083 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 06:30:34,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 06:30:34,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585077553] [2024-11-12 06:30:34,249 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 06:30:34,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915464210] [2024-11-12 06:30:34,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915464210] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 06:30:34,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 06:30:34,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-12 06:30:34,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800102563] [2024-11-12 06:30:34,253 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 06:30:34,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-12 06:30:34,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 06:30:34,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 06:30:34,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=166, Unknown=1, NotChecked=0, Total=210 [2024-11-12 06:30:34,284 INFO L87 Difference]: Start difference. First operand has 45 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-12 06:30:35,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 06:30:35,034 INFO L93 Difference]: Finished difference Result 134 states and 224 transitions. [2024-11-12 06:30:35,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-12 06:30:35,038 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 81 [2024-11-12 06:30:35,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 06:30:35,049 INFO L225 Difference]: With dead ends: 134 [2024-11-12 06:30:35,049 INFO L226 Difference]: Without dead ends: 92 [2024-11-12 06:30:35,052 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=572, Unknown=1, NotChecked=0, Total=756 [2024-11-12 06:30:35,055 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 93 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 47 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-12 06:30:35,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 239 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 234 Invalid, 4 Unknown, 0 Unchecked, 0.4s Time] [2024-11-12 06:30:35,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-12 06:30:35,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 75. [2024-11-12 06:30:35,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 46 states have (on average 1.173913043478261) internal successors, (54), 46 states have internal predecessors, (54), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-12 06:30:35,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 102 transitions. [2024-11-12 06:30:35,108 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 102 transitions. Word has length 81 [2024-11-12 06:30:35,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 06:30:35,110 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 102 transitions. [2024-11-12 06:30:35,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-12 06:30:35,110 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 102 transitions. [2024-11-12 06:30:35,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-12 06:30:35,114 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 06:30:35,115 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 06:30:35,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 06:30:35,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-12 06:30:35,316 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 06:30:35,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 06:30:35,317 INFO L85 PathProgramCache]: Analyzing trace with hash 103058715, now seen corresponding path program 1 times [2024-11-12 06:30:35,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 06:30:35,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156149596] [2024-11-12 06:30:35,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 06:30:35,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 06:30:35,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 06:30:36,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 06:30:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 06:30:36,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-12 06:30:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 06:30:36,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-12 06:30:36,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 06:30:36,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-12 06:30:36,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 06:30:36,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-12 06:30:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 06:30:36,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 06:30:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 06:30:36,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 06:30:36,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 06:30:36,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 06:30:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 06:30:36,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-12 06:30:36,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 06:30:36,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-12 06:30:36,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 06:30:36,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-12 06:30:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 06:30:36,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 06:30:36,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 06:30:36,849 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-12 06:30:36,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 06:30:36,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156149596] [2024-11-12 06:30:36,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156149596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 06:30:36,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 06:30:36,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-12 06:30:36,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897112562] [2024-11-12 06:30:36,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 06:30:36,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 06:30:36,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 06:30:36,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 06:30:36,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-12 06:30:36,853 INFO L87 Difference]: Start difference. First operand 75 states and 102 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-12 06:30:37,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 06:30:37,193 INFO L93 Difference]: Finished difference Result 103 states and 134 transitions. [2024-11-12 06:30:37,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 06:30:37,193 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 81 [2024-11-12 06:30:37,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 06:30:37,195 INFO L225 Difference]: With dead ends: 103 [2024-11-12 06:30:37,195 INFO L226 Difference]: Without dead ends: 101 [2024-11-12 06:30:37,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-12 06:30:37,197 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 40 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 06:30:37,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 298 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 06:30:37,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-12 06:30:37,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 82. [2024-11-12 06:30:37,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 53 states have (on average 1.1886792452830188) internal successors, (63), 53 states have internal predecessors, (63), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-12 06:30:37,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 111 transitions. [2024-11-12 06:30:37,214 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 111 transitions. Word has length 81 [2024-11-12 06:30:37,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 06:30:37,217 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 111 transitions. [2024-11-12 06:30:37,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-12 06:30:37,217 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 111 transitions. [2024-11-12 06:30:37,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-12 06:30:37,219 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 06:30:37,219 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 06:30:37,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 06:30:37,219 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 06:30:37,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 06:30:37,220 INFO L85 PathProgramCache]: Analyzing trace with hash 104905757, now seen corresponding path program 1 times [2024-11-12 06:30:37,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 06:30:37,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254984398] [2024-11-12 06:30:37,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 06:30:37,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 06:30:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 06:30:37,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [683958589] [2024-11-12 06:30:37,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 06:30:37,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 06:30:37,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 06:30:37,294 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) [2024-11-12 06:30:37,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 06:30:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 06:30:37,403 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 06:30:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 06:30:37,512 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 06:30:37,513 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 06:30:37,515 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-12 06:30:37,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-12 06:30:37,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-12 06:30:37,721 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-12 06:30:37,780 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 06:30:37,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:30:37 BoogieIcfgContainer [2024-11-12 06:30:37,785 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 06:30:37,786 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 06:30:37,786 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 06:30:37,787 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 06:30:37,787 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:30:32" (3/4) ... [2024-11-12 06:30:37,789 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-12 06:30:37,790 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 06:30:37,791 INFO L158 Benchmark]: Toolchain (without parser) took 6056.17ms. Allocated memory was 157.3MB in the beginning and 190.8MB in the end (delta: 33.6MB). Free memory was 118.3MB in the beginning and 117.4MB in the end (delta: 889.3kB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. [2024-11-12 06:30:37,791 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 06:30:37,792 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.14ms. Allocated memory is still 157.3MB. Free memory was 118.3MB in the beginning and 104.3MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-12 06:30:37,792 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.81ms. Allocated memory is still 157.3MB. Free memory was 104.3MB in the beginning and 101.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 06:30:37,796 INFO L158 Benchmark]: Boogie Preprocessor took 53.99ms. Allocated memory is still 157.3MB. Free memory was 101.5MB in the beginning and 98.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 06:30:37,796 INFO L158 Benchmark]: RCFGBuilder took 468.63ms. Allocated memory is still 157.3MB. Free memory was 98.0MB in the beginning and 81.3MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-12 06:30:37,797 INFO L158 Benchmark]: TraceAbstraction took 5153.25ms. Allocated memory was 157.3MB in the beginning and 190.8MB in the end (delta: 33.6MB). Free memory was 80.6MB in the beginning and 117.4MB in the end (delta: -36.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 06:30:37,797 INFO L158 Benchmark]: Witness Printer took 3.97ms. Allocated memory is still 190.8MB. Free memory is still 117.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 06:30:37,799 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 113.2MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.14ms. Allocated memory is still 157.3MB. Free memory was 118.3MB in the beginning and 104.3MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.81ms. Allocated memory is still 157.3MB. Free memory was 104.3MB in the beginning and 101.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.99ms. Allocated memory is still 157.3MB. Free memory was 101.5MB in the beginning and 98.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 468.63ms. Allocated memory is still 157.3MB. Free memory was 98.0MB in the beginning and 81.3MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5153.25ms. Allocated memory was 157.3MB in the beginning and 190.8MB in the end (delta: 33.6MB). Free memory was 80.6MB in the beginning and 117.4MB in the end (delta: -36.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.97ms. Allocated memory is still 190.8MB. Free memory is still 117.4MB. There was no memory consumed. 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 90. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 64; [L23] signed long int var_1_2 = 8; [L24] unsigned char var_1_3 = 25; [L25] unsigned char var_1_4 = 100; [L26] float var_1_5 = 99999999999.5; [L27] unsigned char var_1_6 = 4; [L28] float var_1_7 = 63.75; [L29] unsigned char var_1_9 = 0; [L30] unsigned char var_1_10 = 1; [L31] unsigned char last_1_var_1_1 = 64; [L32] unsigned char last_1_var_1_9 = 0; VAL [isInitial=0, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=8, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L94] isInitial = 1 [L95] FCALL initially() [L96] COND TRUE 1 [L97] CALL updateLastVariables() [L86] last_1_var_1_1 = var_1_1 [L87] last_1_var_1_9 = var_1_9 VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=8, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L97] RET updateLastVariables() [L98] CALL updateVariables() [L66] var_1_2 = __VERIFIER_nondet_long() [L67] CALL assume_abort_if_not(var_1_2 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L67] RET assume_abort_if_not(var_1_2 >= -2147483648) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L68] CALL assume_abort_if_not(var_1_2 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L68] RET assume_abort_if_not(var_1_2 <= 2147483647) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L69] var_1_3 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L70] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L71] CALL assume_abort_if_not(var_1_3 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L71] RET assume_abort_if_not(var_1_3 <= 254) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L72] var_1_4 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_4 >= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L73] RET assume_abort_if_not(var_1_4 >= 63) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L74] CALL assume_abort_if_not(var_1_4 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L74] RET assume_abort_if_not(var_1_4 <= 127) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L75] var_1_6 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_7=255/4, var_1_9=0] [L76] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_7=255/4, var_1_9=0] [L77] CALL assume_abort_if_not(var_1_6 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_7=255/4, var_1_9=0] [L77] RET assume_abort_if_not(var_1_6 <= 255) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_7=255/4, var_1_9=0] [L78] CALL assume_abort_if_not(var_1_6 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_7=255/4, var_1_9=0] [L78] RET assume_abort_if_not(var_1_6 != 0) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_7=255/4, var_1_9=0] [L79] var_1_7 = __VERIFIER_nondet_float() [L80] CALL assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L80] RET assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L81] var_1_10 = __VERIFIER_nondet_uchar() [L82] CALL assume_abort_if_not(var_1_10 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L82] RET assume_abort_if_not(var_1_10 >= 1) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L83] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L83] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L98] RET updateVariables() [L99] CALL step() [L36] signed long int stepLocal_3 = last_1_var_1_1; [L37] signed long int stepLocal_2 = var_1_3 / var_1_6; VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, stepLocal_2=0, stepLocal_3=64, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L38] COND TRUE var_1_3 < stepLocal_3 VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, stepLocal_2=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L39] COND FALSE !(var_1_4 < stepLocal_2) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L49] signed long int stepLocal_1 = var_1_2; [L50] signed long int stepLocal_0 = var_1_2; VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, stepLocal_0=-256, stepLocal_1=-256, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L51] COND TRUE stepLocal_1 <= -256 [L52] var_1_1 = ((((var_1_3) < (((var_1_4 - 8) + 5))) ? (var_1_3) : (((var_1_4 - 8) + 5)))) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, stepLocal_0=-256, var_1_10=1, var_1_1=0, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L60] unsigned char stepLocal_4 = (var_1_1 + 64u) != var_1_4; VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, stepLocal_0=-256, stepLocal_4=0, var_1_10=1, var_1_1=0, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L61] COND FALSE !((var_1_5 >= var_1_7) || stepLocal_4) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, stepLocal_0=-256, var_1_10=1, var_1_1=0, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L99] RET step() [L100] CALL, EXPR property() [L90-L91] return (((var_1_2 <= -256) ? (var_1_1 == ((unsigned char) ((((var_1_3) < (((var_1_4 - 8) + 5))) ? (var_1_3) : (((var_1_4 - 8) + 5)))))) : ((var_1_4 <= var_1_2) ? (var_1_1 == ((unsigned char) var_1_3)) : (var_1_1 == ((unsigned char) var_1_3)))) && ((var_1_3 < last_1_var_1_1) ? ((var_1_4 < (var_1_3 / var_1_6)) ? (var_1_5 == ((float) (var_1_7 - 16.55f))) : 1) : (last_1_var_1_9 ? (var_1_5 == ((float) var_1_7)) : (var_1_5 == ((float) var_1_7))))) && (((var_1_5 >= var_1_7) || ((var_1_1 + 64u) != var_1_4)) ? (var_1_9 == ((unsigned char) var_1_10)) : 1) ; VAL [\result=0, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=0, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L100] RET, EXPR property() [L100] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=0, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=0, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 3, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 133 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 133 mSDsluCounter, 537 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 456 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 369 IncrementalHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 81 mSDtfsCounter, 369 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=2, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 36 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 405 NumberOfCodeBlocks, 405 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 160 ConstructedInterpolants, 2 QuantifiedInterpolants, 1069 SizeOfPredicates, 5 NumberOfNonLiveVariables, 198 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 501/528 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-12 06:30:37,834 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/hardness-nfm22/hardness_operatoramount_amount25_file-58.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 8bff6c0f8e15029ad0c69d66a327b450bc06692e04fabba5a0800800584ec965 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 06:30:40,170 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 06:30:40,254 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-12 06:30:40,264 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 06:30:40,265 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 06:30:40,299 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 06:30:40,300 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 06:30:40,300 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 06:30:40,302 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 06:30:40,304 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 06:30:40,304 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 06:30:40,304 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 06:30:40,305 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 06:30:40,306 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 06:30:40,306 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 06:30:40,306 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 06:30:40,307 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 06:30:40,307 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 06:30:40,311 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 06:30:40,311 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 06:30:40,312 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 06:30:40,312 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 06:30:40,312 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 06:30:40,312 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 06:30:40,313 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-12 06:30:40,313 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 06:30:40,313 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-12 06:30:40,313 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 06:30:40,314 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 06:30:40,314 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 06:30:40,314 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 06:30:40,314 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 06:30:40,315 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 06:30:40,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 06:30:40,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 06:30:40,317 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 06:30:40,318 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 06:30:40,319 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 06:30:40,319 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-12 06:30:40,319 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-12 06:30:40,319 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 06:30:40,320 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 06:30:40,320 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 06:30:40,320 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 06:30:40,321 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8bff6c0f8e15029ad0c69d66a327b450bc06692e04fabba5a0800800584ec965 [2024-11-12 06:30:40,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 06:30:40,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 06:30:40,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 06:30:40,716 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 06:30:40,717 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 06:30:40,718 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-58.i [2024-11-12 06:30:42,305 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 06:30:42,495 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 06:30:42,496 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-58.i [2024-11-12 06:30:42,504 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10bb2f389/975cd5347f30427e9d468aee7918b520/FLAGc105ac1ca [2024-11-12 06:30:42,517 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10bb2f389/975cd5347f30427e9d468aee7918b520 [2024-11-12 06:30:42,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 06:30:42,521 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 06:30:42,523 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 06:30:42,523 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 06:30:42,529 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 06:30:42,529 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:30:42" (1/1) ... [2024-11-12 06:30:42,532 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e56e4de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:42, skipping insertion in model container [2024-11-12 06:30:42,533 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:30:42" (1/1) ... [2024-11-12 06:30:42,558 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 06:30:42,807 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/hardness-nfm22/hardness_operatoramount_amount25_file-58.i[915,928] [2024-11-12 06:30:42,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 06:30:42,882 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 06:30:42,897 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/hardness-nfm22/hardness_operatoramount_amount25_file-58.i[915,928] [2024-11-12 06:30:42,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 06:30:42,953 INFO L204 MainTranslator]: Completed translation [2024-11-12 06:30:42,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:42 WrapperNode [2024-11-12 06:30:42,954 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 06:30:42,955 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 06:30:42,955 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 06:30:42,955 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 06:30:42,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:42" (1/1) ... [2024-11-12 06:30:42,975 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:42" (1/1) ... [2024-11-12 06:30:43,003 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 95 [2024-11-12 06:30:43,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 06:30:43,008 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 06:30:43,008 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 06:30:43,008 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 06:30:43,021 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:42" (1/1) ... [2024-11-12 06:30:43,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:42" (1/1) ... [2024-11-12 06:30:43,024 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:42" (1/1) ... [2024-11-12 06:30:43,053 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]. [2024-11-12 06:30:43,053 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:42" (1/1) ... [2024-11-12 06:30:43,054 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:42" (1/1) ... [2024-11-12 06:30:43,061 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:42" (1/1) ... [2024-11-12 06:30:43,069 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:42" (1/1) ... [2024-11-12 06:30:43,071 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:42" (1/1) ... [2024-11-12 06:30:43,075 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:42" (1/1) ... [2024-11-12 06:30:43,078 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 06:30:43,082 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 06:30:43,083 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 06:30:43,083 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 06:30:43,084 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:42" (1/1) ... [2024-11-12 06:30:43,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 06:30:43,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 06:30:43,118 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) [2024-11-12 06:30:43,124 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 [2024-11-12 06:30:43,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 06:30:43,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-12 06:30:43,174 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 06:30:43,174 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 06:30:43,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 06:30:43,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 06:30:43,264 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 06:30:43,267 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 06:30:43,685 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-12 06:30:43,686 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 06:30:43,702 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 06:30:43,702 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 06:30:43,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:30:43 BoogieIcfgContainer [2024-11-12 06:30:43,705 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 06:30:43,720 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 06:30:43,722 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 06:30:43,725 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 06:30:43,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:30:42" (1/3) ... [2024-11-12 06:30:43,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562985c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:30:43, skipping insertion in model container [2024-11-12 06:30:43,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:30:42" (2/3) ... [2024-11-12 06:30:43,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562985c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:30:43, skipping insertion in model container [2024-11-12 06:30:43,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:30:43" (3/3) ... [2024-11-12 06:30:43,730 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-58.i [2024-11-12 06:30:43,749 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 06:30:43,749 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 06:30:43,822 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 06:30:43,828 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;@553ddc91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 06:30:43,830 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 06:30:43,834 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-12 06:30:43,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-12 06:30:43,844 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 06:30:43,845 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 06:30:43,845 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 06:30:43,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 06:30:43,853 INFO L85 PathProgramCache]: Analyzing trace with hash -576999655, now seen corresponding path program 1 times [2024-11-12 06:30:43,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 06:30:43,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1985888332] [2024-11-12 06:30:43,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 06:30:43,870 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 06:30:43,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 06:30:43,873 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 06:30:43,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-12 06:30:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 06:30:44,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-12 06:30:44,111 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 06:30:45,854 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 179 proven. 39 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-12 06:30:45,854 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 06:31:08,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 06:31:08,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1985888332] [2024-11-12 06:31:08,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1985888332] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 06:31:08,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1116730705] [2024-11-12 06:31:08,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 06:31:08,178 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-12 06:31:08,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-12 06:31:08,198 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-12 06:31:08,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-12 06:31:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 06:31:08,646 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-12 06:31:08,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 06:31:31,427 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 181 proven. 36 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-12 06:31:31,427 INFO L312 TraceCheckSpWp]: Computing backward predicates...