./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-85.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-85.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 3d4e6216c0936bbd89fcbb776711a1e05c626b0cfc0b7504600daa5a2b1f9e9e --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 14:41:10,144 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 14:41:10,190 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 14:41:10,194 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 14:41:10,197 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 14:41:10,213 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 14:41:10,214 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 14:41:10,214 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 14:41:10,214 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 14:41:10,214 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 14:41:10,214 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 14:41:10,214 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 14:41:10,215 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 14:41:10,215 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 14:41:10,215 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 14:41:10,215 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 14:41:10,215 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 14:41:10,215 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 14:41:10,215 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 14:41:10,215 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 14:41:10,215 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 14:41:10,215 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 14:41:10,215 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 14:41:10,216 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 14:41:10,216 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 14:41:10,216 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 14:41:10,216 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 14:41:10,216 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 14:41:10,216 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 14:41:10,216 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:41:10,216 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:41:10,216 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:41:10,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:41:10,216 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 14:41:10,216 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:41:10,217 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:41:10,217 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:41:10,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:41:10,217 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 14:41:10,217 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 14:41:10,217 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 14:41:10,217 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 14:41:10,217 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 14:41:10,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 14:41:10,217 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 14:41:10,217 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 14:41:10,217 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 14:41:10,217 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 14:41:10,218 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 3d4e6216c0936bbd89fcbb776711a1e05c626b0cfc0b7504600daa5a2b1f9e9e [2025-01-09 14:41:10,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 14:41:10,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 14:41:10,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 14:41:10,432 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 14:41:10,432 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 14:41:10,433 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-85.i [2025-01-09 14:41:11,595 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/eb7ea98c7/5f0f50fda86949f794ecbcaaa8e64edd/FLAG2a54f165f [2025-01-09 14:41:11,846 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 14:41:11,846 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-85.i [2025-01-09 14:41:11,856 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/eb7ea98c7/5f0f50fda86949f794ecbcaaa8e64edd/FLAG2a54f165f [2025-01-09 14:41:12,141 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/eb7ea98c7/5f0f50fda86949f794ecbcaaa8e64edd [2025-01-09 14:41:12,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 14:41:12,144 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 14:41:12,145 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 14:41:12,145 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 14:41:12,147 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 14:41:12,148 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:41:12" (1/1) ... [2025-01-09 14:41:12,149 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18c4b64c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:12, skipping insertion in model container [2025-01-09 14:41:12,149 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:41:12" (1/1) ... [2025-01-09 14:41:12,163 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 14:41:12,250 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-85.i[915,928] [2025-01-09 14:41:12,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:41:12,293 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 14:41:12,302 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-85.i[915,928] [2025-01-09 14:41:12,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:41:12,332 INFO L204 MainTranslator]: Completed translation [2025-01-09 14:41:12,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:12 WrapperNode [2025-01-09 14:41:12,334 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 14:41:12,334 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 14:41:12,335 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 14:41:12,335 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 14:41:12,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:12" (1/1) ... [2025-01-09 14:41:12,345 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:12" (1/1) ... [2025-01-09 14:41:12,366 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 137 [2025-01-09 14:41:12,366 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 14:41:12,367 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 14:41:12,367 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 14:41:12,367 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 14:41:12,373 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:12" (1/1) ... [2025-01-09 14:41:12,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:12" (1/1) ... [2025-01-09 14:41:12,374 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:12" (1/1) ... [2025-01-09 14:41:12,383 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]. [2025-01-09 14:41:12,387 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:12" (1/1) ... [2025-01-09 14:41:12,387 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:12" (1/1) ... [2025-01-09 14:41:12,390 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:12" (1/1) ... [2025-01-09 14:41:12,395 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:12" (1/1) ... [2025-01-09 14:41:12,400 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:12" (1/1) ... [2025-01-09 14:41:12,401 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:12" (1/1) ... [2025-01-09 14:41:12,401 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:12" (1/1) ... [2025-01-09 14:41:12,405 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 14:41:12,405 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 14:41:12,405 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 14:41:12,405 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 14:41:12,406 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:12" (1/1) ... [2025-01-09 14:41:12,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:41:12,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 14:41:12,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 14:41:12,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 14:41:12,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 14:41:12,450 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 14:41:12,450 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 14:41:12,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 14:41:12,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 14:41:12,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 14:41:12,503 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 14:41:12,504 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 14:41:12,660 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2025-01-09 14:41:12,660 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 14:41:12,665 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 14:41:12,666 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 14:41:12,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:41:12 BoogieIcfgContainer [2025-01-09 14:41:12,666 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 14:41:12,667 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 14:41:12,667 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 14:41:12,670 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 14:41:12,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 02:41:12" (1/3) ... [2025-01-09 14:41:12,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb9c077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:41:12, skipping insertion in model container [2025-01-09 14:41:12,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:12" (2/3) ... [2025-01-09 14:41:12,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb9c077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:41:12, skipping insertion in model container [2025-01-09 14:41:12,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:41:12" (3/3) ... [2025-01-09 14:41:12,672 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-85.i [2025-01-09 14:41:12,681 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 14:41:12,682 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount25_file-85.i that has 2 procedures, 63 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 14:41:12,728 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 14:41:12,738 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;@257b38e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 14:41:12,738 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 14:41:12,741 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-01-09 14:41:12,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-01-09 14:41:12,752 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:41:12,753 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 14:41:12,755 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:41:12,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:41:12,759 INFO L85 PathProgramCache]: Analyzing trace with hash -789630704, now seen corresponding path program 1 times [2025-01-09 14:41:12,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:41:12,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612905067] [2025-01-09 14:41:12,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:41:12,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:41:12,826 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-01-09 14:41:12,836 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-01-09 14:41:12,836 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:41:12,836 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:41:12,953 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2025-01-09 14:41:12,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 14:41:12,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612905067] [2025-01-09 14:41:12,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612905067] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 14:41:12,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554364558] [2025-01-09 14:41:12,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:41:12,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 14:41:12,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 14:41:12,957 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 14:41:12,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 14:41:13,007 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-01-09 14:41:13,051 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-01-09 14:41:13,051 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:41:13,051 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:41:13,053 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 14:41:13,057 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 14:41:13,075 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2025-01-09 14:41:13,075 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 14:41:13,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554364558] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 14:41:13,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 14:41:13,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 14:41:13,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053722215] [2025-01-09 14:41:13,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 14:41:13,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 14:41:13,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 14:41:13,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 14:41:13,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 14:41:13,096 INFO L87 Difference]: Start difference. First operand has 63 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 14:41:13,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:41:13,111 INFO L93 Difference]: Finished difference Result 120 states and 199 transitions. [2025-01-09 14:41:13,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 14:41:13,112 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 104 [2025-01-09 14:41:13,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:41:13,116 INFO L225 Difference]: With dead ends: 120 [2025-01-09 14:41:13,116 INFO L226 Difference]: Without dead ends: 60 [2025-01-09 14:41:13,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 14:41:13,121 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 14:41:13,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 14:41:13,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2025-01-09 14:41:13,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2025-01-09 14:41:13,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 42 states have internal predecessors, (57), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-01-09 14:41:13,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 89 transitions. [2025-01-09 14:41:13,154 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 89 transitions. Word has length 104 [2025-01-09 14:41:13,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:41:13,154 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 89 transitions. [2025-01-09 14:41:13,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 14:41:13,157 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 89 transitions. [2025-01-09 14:41:13,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-01-09 14:41:13,158 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:41:13,158 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 14:41:13,167 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 14:41:13,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-01-09 14:41:13,363 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:41:13,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:41:13,365 INFO L85 PathProgramCache]: Analyzing trace with hash -153956404, now seen corresponding path program 1 times [2025-01-09 14:41:13,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:41:13,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706990399] [2025-01-09 14:41:13,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:41:13,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:41:13,406 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-01-09 14:41:13,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-01-09 14:41:13,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:41:13,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:41:14,407 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2025-01-09 14:41:14,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 14:41:14,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706990399] [2025-01-09 14:41:14,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706990399] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 14:41:14,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 14:41:14,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 14:41:14,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147675403] [2025-01-09 14:41:14,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 14:41:14,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 14:41:14,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 14:41:14,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 14:41:14,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 14:41:14,413 INFO L87 Difference]: Start difference. First operand 60 states and 89 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-01-09 14:41:14,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:41:14,617 INFO L93 Difference]: Finished difference Result 164 states and 238 transitions. [2025-01-09 14:41:14,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 14:41:14,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 104 [2025-01-09 14:41:14,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:41:14,621 INFO L225 Difference]: With dead ends: 164 [2025-01-09 14:41:14,622 INFO L226 Difference]: Without dead ends: 107 [2025-01-09 14:41:14,623 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-01-09 14:41:14,623 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 53 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 14:41:14,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 288 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 14:41:14,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2025-01-09 14:41:14,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 94. [2025-01-09 14:41:14,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 68 states have internal predecessors, (86), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2025-01-09 14:41:14,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 134 transitions. [2025-01-09 14:41:14,634 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 134 transitions. Word has length 104 [2025-01-09 14:41:14,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:41:14,634 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 134 transitions. [2025-01-09 14:41:14,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-01-09 14:41:14,635 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 134 transitions. [2025-01-09 14:41:14,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-01-09 14:41:14,635 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:41:14,636 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 14:41:14,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 14:41:14,636 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:41:14,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:41:14,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1822656824, now seen corresponding path program 1 times [2025-01-09 14:41:14,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:41:14,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654692036] [2025-01-09 14:41:14,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:41:14,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:41:14,650 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-01-09 14:41:14,658 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-01-09 14:41:14,658 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:41:14,658 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:41:14,702 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2025-01-09 14:41:14,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 14:41:14,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654692036] [2025-01-09 14:41:14,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654692036] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 14:41:14,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 14:41:14,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 14:41:14,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095919272] [2025-01-09 14:41:14,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 14:41:14,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 14:41:14,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 14:41:14,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 14:41:14,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 14:41:14,704 INFO L87 Difference]: Start difference. First operand 94 states and 134 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-01-09 14:41:14,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:41:14,737 INFO L93 Difference]: Finished difference Result 192 states and 270 transitions. [2025-01-09 14:41:14,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 14:41:14,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 105 [2025-01-09 14:41:14,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:41:14,741 INFO L225 Difference]: With dead ends: 192 [2025-01-09 14:41:14,741 INFO L226 Difference]: Without dead ends: 101 [2025-01-09 14:41:14,742 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 14:41:14,742 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 56 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 14:41:14,743 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 182 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 14:41:14,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2025-01-09 14:41:14,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 76. [2025-01-09 14:41:14,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 57 states have (on average 1.263157894736842) internal successors, (72), 57 states have internal predecessors, (72), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-01-09 14:41:14,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 104 transitions. [2025-01-09 14:41:14,749 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 104 transitions. Word has length 105 [2025-01-09 14:41:14,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:41:14,749 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 104 transitions. [2025-01-09 14:41:14,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-01-09 14:41:14,749 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 104 transitions. [2025-01-09 14:41:14,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-01-09 14:41:14,750 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:41:14,750 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 14:41:14,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 14:41:14,750 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:41:14,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:41:14,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1627384790, now seen corresponding path program 1 times [2025-01-09 14:41:14,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:41:14,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718647811] [2025-01-09 14:41:14,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:41:14,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:41:14,761 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-01-09 14:41:14,770 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-01-09 14:41:14,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:41:14,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:41:15,381 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2025-01-09 14:41:15,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 14:41:15,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718647811] [2025-01-09 14:41:15,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718647811] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 14:41:15,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 14:41:15,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 14:41:15,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535088615] [2025-01-09 14:41:15,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 14:41:15,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 14:41:15,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 14:41:15,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 14:41:15,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 14:41:15,383 INFO L87 Difference]: Start difference. First operand 76 states and 104 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-01-09 14:41:15,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:41:15,678 INFO L93 Difference]: Finished difference Result 198 states and 262 transitions. [2025-01-09 14:41:15,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 14:41:15,678 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 105 [2025-01-09 14:41:15,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:41:15,679 INFO L225 Difference]: With dead ends: 198 [2025-01-09 14:41:15,679 INFO L226 Difference]: Without dead ends: 125 [2025-01-09 14:41:15,680 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2025-01-09 14:41:15,680 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 60 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 14:41:15,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 354 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 14:41:15,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2025-01-09 14:41:15,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 76. [2025-01-09 14:41:15,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 57 states have (on average 1.263157894736842) internal successors, (72), 57 states have internal predecessors, (72), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-01-09 14:41:15,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 104 transitions. [2025-01-09 14:41:15,692 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 104 transitions. Word has length 105 [2025-01-09 14:41:15,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:41:15,692 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 104 transitions. [2025-01-09 14:41:15,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-01-09 14:41:15,693 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 104 transitions. [2025-01-09 14:41:15,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2025-01-09 14:41:15,695 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:41:15,695 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 14:41:15,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 14:41:15,695 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:41:15,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:41:15,695 INFO L85 PathProgramCache]: Analyzing trace with hash -580363673, now seen corresponding path program 1 times [2025-01-09 14:41:15,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:41:15,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311166826] [2025-01-09 14:41:15,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:41:15,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:41:15,702 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-01-09 14:41:15,734 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-01-09 14:41:15,734 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:41:15,734 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 14:41:15,735 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 14:41:15,740 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-01-09 14:41:15,766 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-01-09 14:41:15,769 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:41:15,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 14:41:15,798 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 14:41:15,798 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 14:41:15,799 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 14:41:15,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 14:41:15,802 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-01-09 14:41:15,878 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 14:41:15,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 02:41:15 BoogieIcfgContainer [2025-01-09 14:41:15,880 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 14:41:15,881 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 14:41:15,881 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 14:41:15,881 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 14:41:15,881 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:41:12" (3/4) ... [2025-01-09 14:41:15,883 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 14:41:15,883 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 14:41:15,884 INFO L158 Benchmark]: Toolchain (without parser) took 3740.22ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 110.8MB in the beginning and 251.7MB in the end (delta: -140.9MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2025-01-09 14:41:15,884 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 14:41:15,884 INFO L158 Benchmark]: CACSL2BoogieTranslator took 189.56ms. Allocated memory is still 142.6MB. Free memory was 110.8MB in the beginning and 98.2MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 14:41:15,884 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.97ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 96.2MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 14:41:15,885 INFO L158 Benchmark]: Boogie Preprocessor took 37.96ms. Allocated memory is still 142.6MB. Free memory was 96.2MB in the beginning and 94.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 14:41:15,885 INFO L158 Benchmark]: RCFGBuilder took 260.85ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 77.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 14:41:15,885 INFO L158 Benchmark]: TraceAbstraction took 3212.72ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 77.4MB in the beginning and 251.7MB in the end (delta: -174.3MB). Peak memory consumption was 128.7MB. Max. memory is 16.1GB. [2025-01-09 14:41:15,885 INFO L158 Benchmark]: Witness Printer took 2.71ms. Allocated memory is still 285.2MB. Free memory is still 251.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 14:41:15,886 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 189.56ms. Allocated memory is still 142.6MB. Free memory was 110.8MB in the beginning and 98.2MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.97ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 96.2MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.96ms. Allocated memory is still 142.6MB. Free memory was 96.2MB in the beginning and 94.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 260.85ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 77.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3212.72ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 77.4MB in the beginning and 251.7MB in the end (delta: -174.3MB). Peak memory consumption was 128.7MB. Max. memory is 16.1GB. * Witness Printer took 2.71ms. Allocated memory is still 285.2MB. Free memory is still 251.7MB. 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 someBinaryDOUBLEComparisonOperation at line 100, overapproximation of someBinaryDOUBLEComparisonOperation at line 95, overapproximation of someBinaryDOUBLEComparisonOperation at line 59, overapproximation of someBinaryDOUBLEComparisonOperation at line 93. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 16; [L23] unsigned char var_1_2 = 0; [L24] signed long int var_1_3 = -64; [L25] signed long int var_1_4 = -4; [L26] unsigned char var_1_5 = 1; [L27] unsigned char var_1_6 = 0; [L28] signed char var_1_7 = 32; [L29] signed char var_1_8 = -8; [L30] signed char var_1_9 = 10; [L31] double var_1_10 = 1.6; [L32] double var_1_11 = 127.25; [L33] double var_1_12 = 2.5; VAL [isInitial=0, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=0, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L104] isInitial = 1 [L105] FCALL initially() [L107] FCALL updateLastVariables() [L108] CALL updateVariables() [L71] var_1_2 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L72] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L73] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L73] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L74] var_1_3 = __VERIFIER_nondet_long() [L75] CALL assume_abort_if_not(var_1_3 >= -1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L75] RET assume_abort_if_not(var_1_3 >= -1073741823) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L76] CALL assume_abort_if_not(var_1_3 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L76] RET assume_abort_if_not(var_1_3 <= 1073741823) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L77] var_1_4 = __VERIFIER_nondet_long() [L78] CALL assume_abort_if_not(var_1_4 >= -1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L78] RET assume_abort_if_not(var_1_4 >= -1073741823) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L79] CALL assume_abort_if_not(var_1_4 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L79] RET assume_abort_if_not(var_1_4 <= 1073741823) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L80] var_1_5 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L81] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L82] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L82] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L83] var_1_6 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_7=32, var_1_8=-8, var_1_9=10] [L84] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_7=32, var_1_8=-8, var_1_9=10] [L85] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L85] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L86] var_1_8 = __VERIFIER_nondet_char() [L87] CALL assume_abort_if_not(var_1_8 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=10] [L87] RET assume_abort_if_not(var_1_8 >= -127) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=10] [L88] CALL assume_abort_if_not(var_1_8 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=10] [L88] RET assume_abort_if_not(var_1_8 <= 126) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=10] [L89] var_1_9 = __VERIFIER_nondet_char() [L90] CALL assume_abort_if_not(var_1_9 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L90] RET assume_abort_if_not(var_1_9 >= -127) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L91] CALL assume_abort_if_not(var_1_9 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L91] RET assume_abort_if_not(var_1_9 <= 126) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L92] var_1_11 = __VERIFIER_nondet_double() [L93] CALL assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L93] RET assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=8/5, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L94] var_1_12 = __VERIFIER_nondet_double() [L95] CALL assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L95] RET assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=8/5, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L108] RET updateVariables() [L109] CALL step() [L37] signed long int stepLocal_0 = var_1_3; VAL [isInitial=1, stepLocal_0=-1073741822, var_1_10=8/5, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L38] COND FALSE !(\read(var_1_6)) VAL [isInitial=1, stepLocal_0=-1073741822, var_1_10=8/5, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L43] COND TRUE \read(var_1_2) [L44] var_1_1 = (((((var_1_7 + var_1_7)) < (-16)) ? ((var_1_7 + var_1_7)) : (-16))) VAL [isInitial=1, stepLocal_0=-1073741822, var_1_10=8/5, var_1_1=-16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L56] unsigned char stepLocal_2 = var_1_5; [L57] signed char stepLocal_1 = var_1_9; VAL [isInitial=1, stepLocal_0=-1073741822, stepLocal_1=-127, stepLocal_2=-255, var_1_10=8/5, var_1_1=-16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L58] COND TRUE ! var_1_6 [L59] var_1_10 = ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))) VAL [isInitial=1, stepLocal_0=-1073741822, stepLocal_1=-127, stepLocal_2=-255, var_1_10=132, var_1_11=132, var_1_12=132, var_1_1=-16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L109] RET step() [L110] CALL, EXPR property() [L100] EXPR ((var_1_2 ? (var_1_1 == ((signed long int) (((((var_1_7 + var_1_7)) < (-16)) ? ((var_1_7 + var_1_7)) : (-16))))) : (var_1_5 ? (var_1_1 == ((signed long int) (var_1_7 + -4))) : (var_1_6 ? (var_1_1 == ((signed long int) var_1_7)) : (var_1_1 == ((signed long int) var_1_7))))) && (var_1_6 ? ((var_1_3 <= var_1_4) ? (var_1_7 == ((signed char) ((((var_1_8) > (var_1_9)) ? (var_1_8) : (var_1_9))))) : 1) : 1)) && ((! var_1_6) ? (var_1_10 == ((double) ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))))) : (((var_1_7 | var_1_1) <= var_1_9) ? ((var_1_5 && var_1_6) ? (var_1_10 == ((double) var_1_12)) : (var_1_10 == ((double) 5.5))) : 1)) VAL [isInitial=1, var_1_10=132, var_1_11=132, var_1_12=132, var_1_1=-16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L100] EXPR (! var_1_6) ? (var_1_10 == ((double) ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))))) : (((var_1_7 | var_1_1) <= var_1_9) ? ((var_1_5 && var_1_6) ? (var_1_10 == ((double) var_1_12)) : (var_1_10 == ((double) 5.5))) : 1) VAL [isInitial=1, var_1_10=132, var_1_11=132, var_1_12=132, var_1_1=-16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L100] EXPR ((var_1_2 ? (var_1_1 == ((signed long int) (((((var_1_7 + var_1_7)) < (-16)) ? ((var_1_7 + var_1_7)) : (-16))))) : (var_1_5 ? (var_1_1 == ((signed long int) (var_1_7 + -4))) : (var_1_6 ? (var_1_1 == ((signed long int) var_1_7)) : (var_1_1 == ((signed long int) var_1_7))))) && (var_1_6 ? ((var_1_3 <= var_1_4) ? (var_1_7 == ((signed char) ((((var_1_8) > (var_1_9)) ? (var_1_8) : (var_1_9))))) : 1) : 1)) && ((! var_1_6) ? (var_1_10 == ((double) ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))))) : (((var_1_7 | var_1_1) <= var_1_9) ? ((var_1_5 && var_1_6) ? (var_1_10 == ((double) var_1_12)) : (var_1_10 == ((double) 5.5))) : 1)) VAL [isInitial=1, var_1_10=132, var_1_11=132, var_1_12=132, var_1_1=-16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L100-L101] return ((var_1_2 ? (var_1_1 == ((signed long int) (((((var_1_7 + var_1_7)) < (-16)) ? ((var_1_7 + var_1_7)) : (-16))))) : (var_1_5 ? (var_1_1 == ((signed long int) (var_1_7 + -4))) : (var_1_6 ? (var_1_1 == ((signed long int) var_1_7)) : (var_1_1 == ((signed long int) var_1_7))))) && (var_1_6 ? ((var_1_3 <= var_1_4) ? (var_1_7 == ((signed char) ((((var_1_8) > (var_1_9)) ? (var_1_8) : (var_1_9))))) : 1) : 1)) && ((! var_1_6) ? (var_1_10 == ((double) ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))))) : (((var_1_7 | var_1_1) <= var_1_9) ? ((var_1_5 && var_1_6) ? (var_1_10 == ((double) var_1_12)) : (var_1_10 == ((double) 5.5))) : 1)) ; [L110] RET, EXPR property() [L110] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=132, var_1_11=132, var_1_12=132, var_1_1=-16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L19] reach_error() VAL [isInitial=1, var_1_10=132, var_1_11=132, var_1_12=132, var_1_1=-16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 5, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 169 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 169 mSDsluCounter, 913 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 511 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 224 IncrementalHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 402 mSDtfsCounter, 224 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=2, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 87 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 628 NumberOfCodeBlocks, 628 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 517 ConstructedInterpolants, 0 QuantifiedInterpolants, 1599 SizeOfPredicates, 0 NumberOfNonLiveVariables, 238 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 2370/2400 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-01-09 14:41:15,903 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-85.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 3d4e6216c0936bbd89fcbb776711a1e05c626b0cfc0b7504600daa5a2b1f9e9e --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 14:41:17,880 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 14:41:17,976 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 14:41:17,984 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 14:41:17,985 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 14:41:18,005 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 14:41:18,006 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 14:41:18,006 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 14:41:18,006 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 14:41:18,006 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 14:41:18,007 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 14:41:18,007 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 14:41:18,007 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 14:41:18,007 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 14:41:18,008 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 14:41:18,008 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 14:41:18,008 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 14:41:18,008 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 14:41:18,008 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 14:41:18,008 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 14:41:18,008 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 14:41:18,008 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 14:41:18,008 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 14:41:18,008 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 14:41:18,008 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 14:41:18,008 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 14:41:18,008 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 14:41:18,008 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 14:41:18,008 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 14:41:18,008 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 14:41:18,008 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 14:41:18,009 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:41:18,009 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:41:18,009 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:41:18,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:41:18,009 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 14:41:18,009 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:41:18,009 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:41:18,009 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:41:18,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:41:18,009 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 14:41:18,009 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 14:41:18,009 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 14:41:18,009 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 14:41:18,009 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 14:41:18,009 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 14:41:18,009 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 14:41:18,009 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 14:41:18,009 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 14:41:18,009 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 14:41:18,010 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 3d4e6216c0936bbd89fcbb776711a1e05c626b0cfc0b7504600daa5a2b1f9e9e [2025-01-09 14:41:18,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 14:41:18,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 14:41:18,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 14:41:18,294 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 14:41:18,294 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 14:41:18,295 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-85.i [2025-01-09 14:41:19,565 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6ead431ad/dbea0163ab044443bf8e924bd4b095f9/FLAG0b1d76bb0 [2025-01-09 14:41:19,794 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 14:41:19,795 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-85.i [2025-01-09 14:41:19,800 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6ead431ad/dbea0163ab044443bf8e924bd4b095f9/FLAG0b1d76bb0 [2025-01-09 14:41:19,813 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6ead431ad/dbea0163ab044443bf8e924bd4b095f9 [2025-01-09 14:41:19,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 14:41:19,817 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 14:41:19,818 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 14:41:19,818 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 14:41:19,821 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 14:41:19,822 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:41:19" (1/1) ... [2025-01-09 14:41:19,822 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34938247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:19, skipping insertion in model container [2025-01-09 14:41:19,822 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:41:19" (1/1) ... [2025-01-09 14:41:19,836 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 14:41:19,928 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-85.i[915,928] [2025-01-09 14:41:19,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:41:19,981 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 14:41:19,989 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-85.i[915,928] [2025-01-09 14:41:20,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:41:20,027 INFO L204 MainTranslator]: Completed translation [2025-01-09 14:41:20,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:20 WrapperNode [2025-01-09 14:41:20,029 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 14:41:20,029 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 14:41:20,029 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 14:41:20,029 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 14:41:20,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:20" (1/1) ... [2025-01-09 14:41:20,045 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:20" (1/1) ... [2025-01-09 14:41:20,062 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 105 [2025-01-09 14:41:20,062 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 14:41:20,063 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 14:41:20,063 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 14:41:20,063 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 14:41:20,071 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:20" (1/1) ... [2025-01-09 14:41:20,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:20" (1/1) ... [2025-01-09 14:41:20,073 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:20" (1/1) ... [2025-01-09 14:41:20,080 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]. [2025-01-09 14:41:20,080 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:20" (1/1) ... [2025-01-09 14:41:20,081 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:20" (1/1) ... [2025-01-09 14:41:20,085 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:20" (1/1) ... [2025-01-09 14:41:20,085 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:20" (1/1) ... [2025-01-09 14:41:20,087 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:20" (1/1) ... [2025-01-09 14:41:20,088 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:20" (1/1) ... [2025-01-09 14:41:20,089 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:20" (1/1) ... [2025-01-09 14:41:20,092 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 14:41:20,092 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 14:41:20,093 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 14:41:20,093 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 14:41:20,093 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:20" (1/1) ... [2025-01-09 14:41:20,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:41:20,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 14:41:20,116 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 14:41:20,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 14:41:20,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 14:41:20,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 14:41:20,135 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 14:41:20,135 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 14:41:20,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 14:41:20,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 14:41:20,191 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 14:41:20,192 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 14:41:20,386 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2025-01-09 14:41:20,386 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 14:41:20,394 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 14:41:20,396 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 14:41:20,397 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:41:20 BoogieIcfgContainer [2025-01-09 14:41:20,397 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 14:41:20,399 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 14:41:20,399 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 14:41:20,404 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 14:41:20,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 02:41:19" (1/3) ... [2025-01-09 14:41:20,405 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8838b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:41:20, skipping insertion in model container [2025-01-09 14:41:20,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:41:20" (2/3) ... [2025-01-09 14:41:20,405 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8838b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:41:20, skipping insertion in model container [2025-01-09 14:41:20,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:41:20" (3/3) ... [2025-01-09 14:41:20,407 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-85.i [2025-01-09 14:41:20,418 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 14:41:20,419 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount25_file-85.i that has 2 procedures, 52 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 14:41:20,468 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 14:41:20,480 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;@4b42bcf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 14:41:20,480 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 14:41:20,485 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 34 states have internal predecessors, (45), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-01-09 14:41:20,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-01-09 14:41:20,492 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:41:20,492 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 14:41:20,493 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:41:20,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:41:20,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1639611589, now seen corresponding path program 1 times [2025-01-09 14:41:20,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 14:41:20,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [619107021] [2025-01-09 14:41:20,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:41:20,509 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 [2025-01-09 14:41:20,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 14:41:20,514 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/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) [2025-01-09 14:41:20,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 [2025-01-09 14:41:20,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-01-09 14:41:20,665 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-01-09 14:41:20,665 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:41:20,665 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:41:20,669 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 14:41:20,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 14:41:20,712 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2025-01-09 14:41:20,716 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 14:41:20,717 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 14:41:20,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [619107021] [2025-01-09 14:41:20,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [619107021] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 14:41:20,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 14:41:20,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 14:41:20,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3983857] [2025-01-09 14:41:20,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 14:41:20,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 14:41:20,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 14:41:20,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 14:41:20,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 14:41:20,740 INFO L87 Difference]: Start difference. First operand has 52 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 34 states have internal predecessors, (45), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 14:41:20,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:41:20,754 INFO L93 Difference]: Finished difference Result 98 states and 165 transitions. [2025-01-09 14:41:20,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 14:41:20,756 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 102 [2025-01-09 14:41:20,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:41:20,760 INFO L225 Difference]: With dead ends: 98 [2025-01-09 14:41:20,760 INFO L226 Difference]: Without dead ends: 49 [2025-01-09 14:41:20,762 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 14:41:20,764 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 14:41:20,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 14:41:20,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2025-01-09 14:41:20,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2025-01-09 14:41:20,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-01-09 14:41:20,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 72 transitions. [2025-01-09 14:41:20,816 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 72 transitions. Word has length 102 [2025-01-09 14:41:20,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:41:20,816 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 72 transitions. [2025-01-09 14:41:20,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 14:41:20,817 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 72 transitions. [2025-01-09 14:41:20,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-01-09 14:41:20,818 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:41:20,818 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 14:41:20,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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)] Forceful destruction successful, exit code 0 [2025-01-09 14:41:21,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/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 [2025-01-09 14:41:21,020 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:41:21,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:41:21,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1412340353, now seen corresponding path program 1 times [2025-01-09 14:41:21,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 14:41:21,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1630729191] [2025-01-09 14:41:21,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:41:21,022 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 [2025-01-09 14:41:21,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 14:41:21,024 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/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) [2025-01-09 14:41:21,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 (3)] Waiting until timeout for monitored process [2025-01-09 14:41:21,074 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-01-09 14:41:21,141 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-01-09 14:41:21,141 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:41:21,141 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:41:21,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-09 14:41:21,156 INFO L279 TraceCheckSpWp]: Computing forward predicates...