./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.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_amount10_file-83.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 45462a44a1fe505808d67e91a78e67cafa96659e5550122c89dde2fcb9d12b79 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 14:18:53,415 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 14:18:53,451 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 14:18:53,454 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 14:18:53,454 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 14:18:53,469 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 14:18:53,469 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 14:18:53,469 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 14:18:53,470 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 14:18:53,470 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 14:18:53,470 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 14:18:53,470 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 14:18:53,470 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 14:18:53,470 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 14:18:53,470 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 14:18:53,470 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 14:18:53,471 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 14:18:53,471 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 14:18:53,471 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 14:18:53,471 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 14:18:53,471 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 14:18:53,471 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 14:18:53,471 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 14:18:53,471 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 14:18:53,471 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 14:18:53,471 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 14:18:53,471 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 14:18:53,471 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 14:18:53,472 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 14:18:53,472 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:18:53,472 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:18:53,472 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:18:53,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:18:53,472 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 14:18:53,472 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:18:53,472 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:18:53,472 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:18:53,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:18:53,473 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 14:18:53,473 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 14:18:53,473 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 14:18:53,473 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 14:18:53,473 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 14:18:53,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 14:18:53,473 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 14:18:53,473 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 14:18:53,473 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 14:18:53,473 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 14:18:53,473 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 -> 45462a44a1fe505808d67e91a78e67cafa96659e5550122c89dde2fcb9d12b79 [2025-01-09 14:18:53,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 14:18:53,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 14:18:53,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 14:18:53,665 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 14:18:53,666 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 14:18:53,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i [2025-01-09 14:18:54,998 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/13ec2fdd8/9fe792cc63664356baa29a528dd30141/FLAG0f1db21cb [2025-01-09 14:18:55,225 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 14:18:55,226 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i [2025-01-09 14:18:55,233 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/13ec2fdd8/9fe792cc63664356baa29a528dd30141/FLAG0f1db21cb [2025-01-09 14:18:55,247 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/13ec2fdd8/9fe792cc63664356baa29a528dd30141 [2025-01-09 14:18:55,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 14:18:55,250 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 14:18:55,252 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 14:18:55,252 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 14:18:55,255 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 14:18:55,256 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:18:55" (1/1) ... [2025-01-09 14:18:55,257 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1796edf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:18:55, skipping insertion in model container [2025-01-09 14:18:55,257 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:18:55" (1/1) ... [2025-01-09 14:18:55,268 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 14:18:55,368 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_amount10_file-83.i[915,928] [2025-01-09 14:18:55,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:18:55,402 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 14:18:55,409 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_amount10_file-83.i[915,928] [2025-01-09 14:18:55,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:18:55,430 INFO L204 MainTranslator]: Completed translation [2025-01-09 14:18:55,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:18:55 WrapperNode [2025-01-09 14:18:55,432 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 14:18:55,432 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 14:18:55,433 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 14:18:55,433 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 14:18:55,437 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:18:55" (1/1) ... [2025-01-09 14:18:55,441 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:18:55" (1/1) ... [2025-01-09 14:18:55,457 INFO L138 Inliner]: procedures = 26, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 58 [2025-01-09 14:18:55,457 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 14:18:55,458 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 14:18:55,458 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 14:18:55,458 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 14:18:55,465 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:18:55" (1/1) ... [2025-01-09 14:18:55,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:18:55" (1/1) ... [2025-01-09 14:18:55,466 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:18:55" (1/1) ... [2025-01-09 14:18:55,481 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 14:18:55,482 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:18:55" (1/1) ... [2025-01-09 14:18:55,482 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:18:55" (1/1) ... [2025-01-09 14:18:55,485 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:18:55" (1/1) ... [2025-01-09 14:18:55,491 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:18:55" (1/1) ... [2025-01-09 14:18:55,493 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:18:55" (1/1) ... [2025-01-09 14:18:55,497 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:18:55" (1/1) ... [2025-01-09 14:18:55,497 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:18:55" (1/1) ... [2025-01-09 14:18:55,502 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 14:18:55,503 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 14:18:55,503 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 14:18:55,503 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 14:18:55,503 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:18:55" (1/1) ... [2025-01-09 14:18:55,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:18:55,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 14:18:55,529 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 14:18:55,537 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 14:18:55,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 14:18:55,552 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 14:18:55,552 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 14:18:55,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 14:18:55,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 14:18:55,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 14:18:55,600 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 14:18:55,601 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 14:18:55,721 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-01-09 14:18:55,721 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 14:18:55,727 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 14:18:55,727 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 14:18:55,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:18:55 BoogieIcfgContainer [2025-01-09 14:18:55,728 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 14:18:55,729 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 14:18:55,729 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 14:18:55,732 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 14:18:55,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 02:18:55" (1/3) ... [2025-01-09 14:18:55,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef93a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:18:55, skipping insertion in model container [2025-01-09 14:18:55,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:18:55" (2/3) ... [2025-01-09 14:18:55,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef93a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:18:55, skipping insertion in model container [2025-01-09 14:18:55,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:18:55" (3/3) ... [2025-01-09 14:18:55,738 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-83.i [2025-01-09 14:18:55,748 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 14:18:55,750 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-83.i that has 2 procedures, 28 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 14:18:55,780 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 14:18:55,787 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;@57b579fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 14:18:55,787 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 14:18:55,790 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 20 states have (on average 1.25) internal successors, (25), 21 states have internal predecessors, (25), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-01-09 14:18:55,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-01-09 14:18:55,794 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:18:55,795 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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 14:18:55,795 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:18:55,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:18:55,799 INFO L85 PathProgramCache]: Analyzing trace with hash 198998805, now seen corresponding path program 1 times [2025-01-09 14:18:55,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:18:55,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156949423] [2025-01-09 14:18:55,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:18:55,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:18:55,913 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-01-09 14:18:55,925 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-01-09 14:18:55,925 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:18:55,925 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:18:56,010 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-01-09 14:18:56,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 14:18:56,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156949423] [2025-01-09 14:18:56,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156949423] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 14:18:56,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195049376] [2025-01-09 14:18:56,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:18:56,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 14:18:56,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 14:18:56,017 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 14:18:56,018 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 14:18:56,069 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-01-09 14:18:56,105 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-01-09 14:18:56,105 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:18:56,105 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:18:56,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 14:18:56,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 14:18:56,133 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-01-09 14:18:56,133 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 14:18:56,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195049376] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 14:18:56,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 14:18:56,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 14:18:56,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083947678] [2025-01-09 14:18:56,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 14:18:56,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 14:18:56,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 14:18:56,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 14:18:56,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 14:18:56,150 INFO L87 Difference]: Start difference. First operand has 28 states, 20 states have (on average 1.25) internal successors, (25), 21 states have internal predecessors, (25), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 14:18:56,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:18:56,160 INFO L93 Difference]: Finished difference Result 50 states and 70 transitions. [2025-01-09 14:18:56,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 14:18:56,162 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2025-01-09 14:18:56,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:18:56,165 INFO L225 Difference]: With dead ends: 50 [2025-01-09 14:18:56,165 INFO L226 Difference]: Without dead ends: 25 [2025-01-09 14:18:56,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 40 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 14:18:56,169 INFO L435 NwaCegarLoop]: 30 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, 30 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 14:18:56,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 14:18:56,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2025-01-09 14:18:56,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2025-01-09 14:18:56,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-01-09 14:18:56,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2025-01-09 14:18:56,190 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 39 [2025-01-09 14:18:56,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:18:56,191 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2025-01-09 14:18:56,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 14:18:56,191 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2025-01-09 14:18:56,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-01-09 14:18:56,192 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:18:56,192 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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 14:18:56,201 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 14:18:56,394 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 14:18:56,394 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:18:56,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:18:56,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1405592915, now seen corresponding path program 1 times [2025-01-09 14:18:56,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:18:56,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599704095] [2025-01-09 14:18:56,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:18:56,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:18:56,406 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-01-09 14:18:56,454 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-01-09 14:18:56,455 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:18:56,455 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 14:18:56,455 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 14:18:56,458 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-01-09 14:18:56,477 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-01-09 14:18:56,477 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:18:56,477 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 14:18:56,497 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 14:18:56,497 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 14:18:56,498 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 14:18:56,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 14:18:56,501 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-09 14:18:56,523 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 14:18:56,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 02:18:56 BoogieIcfgContainer [2025-01-09 14:18:56,525 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 14:18:56,526 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 14:18:56,526 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 14:18:56,526 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 14:18:56,526 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:18:55" (3/4) ... [2025-01-09 14:18:56,528 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 14:18:56,528 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 14:18:56,529 INFO L158 Benchmark]: Toolchain (without parser) took 1278.76ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 43.0MB in the end (delta: 62.5MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-01-09 14:18:56,529 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 14:18:56,529 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.30ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 94.2MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 14:18:56,529 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.98ms. Allocated memory is still 142.6MB. Free memory was 94.2MB in the beginning and 92.0MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 14:18:56,530 INFO L158 Benchmark]: Boogie Preprocessor took 44.44ms. Allocated memory is still 142.6MB. Free memory was 92.0MB in the beginning and 90.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 14:18:56,530 INFO L158 Benchmark]: RCFGBuilder took 225.14ms. Allocated memory is still 142.6MB. Free memory was 90.3MB in the beginning and 79.1MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 14:18:56,530 INFO L158 Benchmark]: TraceAbstraction took 795.75ms. Allocated memory is still 142.6MB. Free memory was 78.2MB in the beginning and 43.0MB in the end (delta: 35.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-01-09 14:18:56,530 INFO L158 Benchmark]: Witness Printer took 2.80ms. Allocated memory is still 142.6MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 14:18:56,531 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 180.30ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 94.2MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.98ms. Allocated memory is still 142.6MB. Free memory was 94.2MB in the beginning and 92.0MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.44ms. Allocated memory is still 142.6MB. Free memory was 92.0MB in the beginning and 90.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 225.14ms. Allocated memory is still 142.6MB. Free memory was 90.3MB in the beginning and 79.1MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 795.75ms. Allocated memory is still 142.6MB. Free memory was 78.2MB in the beginning and 43.0MB in the end (delta: 35.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 2.80ms. Allocated memory is still 142.6MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 34, overapproximation of someBinaryFLOATComparisonOperation at line 54, overapproximation of someBinaryFLOATComparisonOperation at line 49. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 2; [L23] unsigned char var_1_5 = 128; [L24] unsigned char var_1_6 = 0; [L25] unsigned char var_1_7 = 10; [L26] float var_1_8 = 128.25; [L27] float var_1_9 = 49.8; [L28] unsigned short int var_1_10 = 5; VAL [isInitial=0, var_1_10=5, var_1_1=2, var_1_5=128, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L58] isInitial = 1 [L59] FCALL initially() [L61] FCALL updateLastVariables() [L62] CALL updateVariables() [L42] var_1_5 = __VERIFIER_nondet_uchar() [L43] CALL assume_abort_if_not(var_1_5 >= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L43] RET assume_abort_if_not(var_1_5 >= 127) VAL [isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L44] CALL assume_abort_if_not(var_1_5 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L44] RET assume_abort_if_not(var_1_5 <= 254) VAL [isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L45] var_1_6 = __VERIFIER_nondet_uchar() [L46] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L46] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L47] CALL assume_abort_if_not(var_1_6 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=127, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=127, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L47] RET assume_abort_if_not(var_1_6 <= 127) VAL [isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=127, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L48] var_1_9 = __VERIFIER_nondet_float() [L49] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=127, var_1_7=10, var_1_8=513/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=127, var_1_7=10, var_1_8=513/4] [L49] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=127, var_1_7=10, var_1_8=513/4] [L62] RET updateVariables() [L63] CALL step() [L32] var_1_7 = var_1_5 [L33] var_1_8 = var_1_9 VAL [isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=133, var_1_9=133] [L34] COND TRUE ((var_1_8 + var_1_8) * var_1_8) < -0.5f [L35] var_1_1 = (var_1_5 - var_1_6) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=133, var_1_9=133] [L39] var_1_10 = var_1_1 VAL [isInitial=1, var_1_10=0, var_1_1=0, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=133, var_1_9=133] [L63] RET step() [L64] CALL, EXPR property() [L54-L55] return ((((((var_1_8 + var_1_8) * var_1_8) < -0.5f) ? (var_1_1 == ((unsigned char) (var_1_5 - var_1_6))) : (var_1_1 == ((unsigned char) var_1_5))) && (var_1_7 == ((unsigned char) var_1_5))) && (var_1_8 == ((float) var_1_9))) && (var_1_10 == ((unsigned short int) var_1_1)) ; VAL [\result=0, isInitial=1, var_1_10=0, var_1_1=0, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=133, var_1_9=133] [L64] RET, EXPR property() [L64] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=0, var_1_1=0, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=133, var_1_9=133] [L19] reach_error() VAL [isInitial=1, var_1_10=0, var_1_1=0, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=133, var_1_9=133] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 30 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 76 SizeOfPredicates, 0 NumberOfNonLiveVariables, 111 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 72/80 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 14:18:56,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/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_amount10_file-83.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 45462a44a1fe505808d67e91a78e67cafa96659e5550122c89dde2fcb9d12b79 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 14:18:58,608 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 14:18:58,686 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 14:18:58,693 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 14:18:58,694 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 14:18:58,735 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 14:18:58,736 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 14:18:58,736 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 14:18:58,736 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 14:18:58,736 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 14:18:58,737 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 14:18:58,737 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 14:18:58,737 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 14:18:58,737 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 14:18:58,737 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 14:18:58,737 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 14:18:58,737 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 14:18:58,738 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 14:18:58,738 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 14:18:58,738 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 14:18:58,738 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 14:18:58,738 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 14:18:58,738 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 14:18:58,738 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 14:18:58,738 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 14:18:58,738 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 14:18:58,738 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 14:18:58,738 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 14:18:58,738 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 14:18:58,738 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 14:18:58,738 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 14:18:58,738 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:18:58,738 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:18:58,738 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:18:58,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:18:58,738 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 14:18:58,738 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:18:58,738 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:18:58,739 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:18:58,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:18:58,739 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 14:18:58,739 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 14:18:58,739 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 14:18:58,739 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 14:18:58,739 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 14:18:58,740 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 14:18:58,740 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 14:18:58,740 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 14:18:58,740 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 14:18:58,740 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 14:18:58,740 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 -> 45462a44a1fe505808d67e91a78e67cafa96659e5550122c89dde2fcb9d12b79 [2025-01-09 14:18:58,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 14:18:58,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 14:18:58,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 14:18:58,986 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 14:18:58,986 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 14:18:58,987 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i [2025-01-09 14:19:00,167 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d7447a1e1/731618556bf6498689eb3cf77096a592/FLAGe9fb1d068 [2025-01-09 14:19:00,402 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 14:19:00,403 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i [2025-01-09 14:19:00,409 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d7447a1e1/731618556bf6498689eb3cf77096a592/FLAGe9fb1d068 [2025-01-09 14:19:00,751 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d7447a1e1/731618556bf6498689eb3cf77096a592 [2025-01-09 14:19:00,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 14:19:00,754 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 14:19:00,755 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 14:19:00,755 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 14:19:00,758 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 14:19:00,758 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:19:00" (1/1) ... [2025-01-09 14:19:00,759 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@670c5fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:00, skipping insertion in model container [2025-01-09 14:19:00,759 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:19:00" (1/1) ... [2025-01-09 14:19:00,772 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 14:19:00,877 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_amount10_file-83.i[915,928] [2025-01-09 14:19:00,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:19:00,907 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 14:19:00,917 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_amount10_file-83.i[915,928] [2025-01-09 14:19:00,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:19:00,940 INFO L204 MainTranslator]: Completed translation [2025-01-09 14:19:00,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:00 WrapperNode [2025-01-09 14:19:00,941 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 14:19:00,942 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 14:19:00,942 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 14:19:00,942 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 14:19:00,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:00" (1/1) ... [2025-01-09 14:19:00,952 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:00" (1/1) ... [2025-01-09 14:19:00,964 INFO L138 Inliner]: procedures = 27, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 58 [2025-01-09 14:19:00,966 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 14:19:00,967 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 14:19:00,967 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 14:19:00,967 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 14:19:00,973 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:00" (1/1) ... [2025-01-09 14:19:00,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:00" (1/1) ... [2025-01-09 14:19:00,975 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:00" (1/1) ... [2025-01-09 14:19:00,981 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 14:19:00,981 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:00" (1/1) ... [2025-01-09 14:19:00,982 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:00" (1/1) ... [2025-01-09 14:19:00,986 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:00" (1/1) ... [2025-01-09 14:19:00,987 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:00" (1/1) ... [2025-01-09 14:19:00,988 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:00" (1/1) ... [2025-01-09 14:19:00,989 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:00" (1/1) ... [2025-01-09 14:19:00,990 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:00" (1/1) ... [2025-01-09 14:19:00,991 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 14:19:00,992 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 14:19:00,992 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 14:19:00,992 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 14:19:00,993 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:00" (1/1) ... [2025-01-09 14:19:00,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:19:01,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 14:19:01,017 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 14:19:01,025 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 14:19:01,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 14:19:01,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 14:19:01,046 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 14:19:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 14:19:01,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 14:19:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 14:19:01,102 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 14:19:01,103 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 14:19:01,790 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-01-09 14:19:01,790 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 14:19:01,796 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 14:19:01,796 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 14:19:01,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:19:01 BoogieIcfgContainer [2025-01-09 14:19:01,796 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 14:19:01,798 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 14:19:01,798 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 14:19:01,801 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 14:19:01,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 02:19:00" (1/3) ... [2025-01-09 14:19:01,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@251a4400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:19:01, skipping insertion in model container [2025-01-09 14:19:01,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:00" (2/3) ... [2025-01-09 14:19:01,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@251a4400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:19:01, skipping insertion in model container [2025-01-09 14:19:01,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:19:01" (3/3) ... [2025-01-09 14:19:01,803 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-83.i [2025-01-09 14:19:01,812 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 14:19:01,813 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-83.i that has 2 procedures, 28 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 14:19:01,848 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 14:19:01,855 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;@365e75ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 14:19:01,856 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 14:19:01,858 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 20 states have (on average 1.25) internal successors, (25), 21 states have internal predecessors, (25), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-01-09 14:19:01,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-01-09 14:19:01,862 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:19:01,862 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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 14:19:01,863 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:19:01,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:19:01,866 INFO L85 PathProgramCache]: Analyzing trace with hash 198998805, now seen corresponding path program 1 times [2025-01-09 14:19:01,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 14:19:01,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [279854742] [2025-01-09 14:19:01,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:19:01,874 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 14:19:01,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 14:19:01,879 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 14:19:01,880 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 14:19:01,921 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-01-09 14:19:02,001 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-01-09 14:19:02,002 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:19:02,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:19:02,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 14:19:02,010 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 14:19:02,026 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-01-09 14:19:02,026 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 14:19:02,026 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 14:19:02,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [279854742] [2025-01-09 14:19:02,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [279854742] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 14:19:02,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 14:19:02,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 14:19:02,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199805747] [2025-01-09 14:19:02,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 14:19:02,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 14:19:02,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 14:19:02,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 14:19:02,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 14:19:02,043 INFO L87 Difference]: Start difference. First operand has 28 states, 20 states have (on average 1.25) internal successors, (25), 21 states have internal predecessors, (25), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 14:19:02,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:19:02,053 INFO L93 Difference]: Finished difference Result 50 states and 70 transitions. [2025-01-09 14:19:02,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 14:19:02,054 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2025-01-09 14:19:02,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:19:02,057 INFO L225 Difference]: With dead ends: 50 [2025-01-09 14:19:02,057 INFO L226 Difference]: Without dead ends: 25 [2025-01-09 14:19:02,059 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 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 14:19:02,061 INFO L435 NwaCegarLoop]: 29 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, 29 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 14:19:02,061 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 14:19:02,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2025-01-09 14:19:02,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2025-01-09 14:19:02,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-01-09 14:19:02,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2025-01-09 14:19:02,085 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 39 [2025-01-09 14:19:02,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:19:02,085 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2025-01-09 14:19:02,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 14:19:02,086 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2025-01-09 14:19:02,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-01-09 14:19:02,087 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:19:02,087 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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 14:19:02,093 INFO L552 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)] Ended with exit code 0 [2025-01-09 14:19:02,288 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 14:19:02,288 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:19:02,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:19:02,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1462851217, now seen corresponding path program 1 times [2025-01-09 14:19:02,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 14:19:02,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1841869779] [2025-01-09 14:19:02,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:19:02,290 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 14:19:02,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 14:19:02,293 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 14:19:02,295 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 14:19:02,344 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-01-09 14:19:02,429 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-01-09 14:19:02,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:19:02,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:19:02,436 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-01-09 14:19:02,439 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 14:19:04,893 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-01-09 14:19:04,893 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 14:19:04,894 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 14:19:04,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1841869779] [2025-01-09 14:19:04,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1841869779] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 14:19:04,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 14:19:04,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-01-09 14:19:04,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387630716] [2025-01-09 14:19:04,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 14:19:04,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-09 14:19:04,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 14:19:04,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-09 14:19:04,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2025-01-09 14:19:04,896 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 9 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-01-09 14:19:06,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:19:06,314 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2025-01-09 14:19:06,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-09 14:19:06,314 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 9 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 39 [2025-01-09 14:19:06,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:19:06,315 INFO L225 Difference]: With dead ends: 33 [2025-01-09 14:19:06,315 INFO L226 Difference]: Without dead ends: 0 [2025-01-09 14:19:06,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2025-01-09 14:19:06,316 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 27 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-01-09 14:19:06,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 75 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-01-09 14:19:06,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-09 14:19:06,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-09 14:19:06,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 14:19:06,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-09 14:19:06,317 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2025-01-09 14:19:06,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:19:06,317 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-09 14:19:06,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 9 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-01-09 14:19:06,317 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-09 14:19:06,317 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-09 14:19:06,319 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 14:19:06,328 INFO L552 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)] Ended with exit code 0 [2025-01-09 14:19:06,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /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 14:19:06,523 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-09 14:19:06,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-01-09 14:19:06,893 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 14:19:06,899 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-01-09 14:19:06,899 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-01-09 14:19:06,900 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-01-09 14:19:06,901 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-01-09 14:19:06,901 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-01-09 14:19:06,901 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-01-09 14:19:06,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 02:19:06 BoogieIcfgContainer [2025-01-09 14:19:06,901 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 14:19:06,901 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 14:19:06,901 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 14:19:06,901 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 14:19:06,905 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:19:01" (3/4) ... [2025-01-09 14:19:06,907 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 14:19:06,910 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-01-09 14:19:06,915 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2025-01-09 14:19:06,915 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-01-09 14:19:06,915 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-09 14:19:06,916 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 14:19:06,971 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 14:19:06,971 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 14:19:06,971 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 14:19:06,972 INFO L158 Benchmark]: Toolchain (without parser) took 6217.88ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 91.2MB in the beginning and 146.4MB in the end (delta: -55.3MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2025-01-09 14:19:06,972 INFO L158 Benchmark]: CDTParser took 1.84ms. Allocated memory is still 117.4MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 14:19:06,972 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.33ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 78.9MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 14:19:06,972 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.66ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 14:19:06,972 INFO L158 Benchmark]: Boogie Preprocessor took 24.68ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 76.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 14:19:06,973 INFO L158 Benchmark]: RCFGBuilder took 804.59ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 64.6MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 14:19:06,973 INFO L158 Benchmark]: TraceAbstraction took 5102.96ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 64.0MB in the beginning and 152.9MB in the end (delta: -88.9MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2025-01-09 14:19:06,973 INFO L158 Benchmark]: Witness Printer took 69.95ms. Allocated memory is still 218.1MB. Free memory was 152.9MB in the beginning and 146.4MB in the end (delta: 6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 14:19:06,974 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.84ms. Allocated memory is still 117.4MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 186.33ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 78.9MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.66ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.68ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 76.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 804.59ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 64.6MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 5102.96ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 64.0MB in the beginning and 152.9MB in the end (delta: -88.9MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * Witness Printer took 69.95ms. Allocated memory is still 218.1MB. Free memory was 152.9MB in the beginning and 146.4MB in the end (delta: 6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 2, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 104 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 58 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 102 IncrementalHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 46 mSDtfsCounter, 102 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 16, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 296 SizeOfPredicates, 8 NumberOfNonLiveVariables, 145 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 80/80 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-09 14:19:06,994 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 Writing output log to file Ultimate.log Result: TRUE