./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-0.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-0.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 342a391425e9273144e7f8d0607b5266ee0425388e31ab43115bf3acb263154c --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 14:15:00,918 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 14:15:00,975 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 14:15:00,982 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 14:15:00,982 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 14:15:01,004 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 14:15:01,005 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 14:15:01,005 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 14:15:01,006 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 14:15:01,006 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 14:15:01,007 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 14:15:01,007 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 14:15:01,007 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 14:15:01,007 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 14:15:01,008 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 14:15:01,008 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 14:15:01,008 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 14:15:01,008 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 14:15:01,008 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 14:15:01,008 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 14:15:01,008 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 14:15:01,008 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 14:15:01,009 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 14:15:01,009 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 14:15:01,009 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 14:15:01,009 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 14:15:01,009 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 14:15:01,009 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 14:15:01,009 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 14:15:01,009 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:15:01,009 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:15:01,010 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:15:01,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:15:01,010 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 14:15:01,010 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:15:01,010 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:15:01,010 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:15:01,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:15:01,010 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 14:15:01,011 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 14:15:01,011 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 14:15:01,011 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 14:15:01,011 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 14:15:01,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 14:15:01,011 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 14:15:01,011 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 14:15:01,011 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 14:15:01,011 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 14:15:01,011 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 -> 342a391425e9273144e7f8d0607b5266ee0425388e31ab43115bf3acb263154c [2025-01-09 14:15:01,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 14:15:01,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 14:15:01,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 14:15:01,268 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 14:15:01,268 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 14:15:01,269 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-0.i [2025-01-09 14:15:02,526 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/155cf97f5/ed6c2bad93e444d190dd61a570087239/FLAG4b84eca91 [2025-01-09 14:15:02,765 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 14:15:02,766 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-0.i [2025-01-09 14:15:02,774 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/155cf97f5/ed6c2bad93e444d190dd61a570087239/FLAG4b84eca91 [2025-01-09 14:15:02,796 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/155cf97f5/ed6c2bad93e444d190dd61a570087239 [2025-01-09 14:15:02,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 14:15:02,799 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 14:15:02,800 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 14:15:02,800 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 14:15:02,803 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 14:15:02,804 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:15:02" (1/1) ... [2025-01-09 14:15:02,805 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3be2e56c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:02, skipping insertion in model container [2025-01-09 14:15:02,805 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:15:02" (1/1) ... [2025-01-09 14:15:02,817 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 14:15:02,944 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-0.i[914,927] [2025-01-09 14:15:02,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:15:02,986 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 14:15:02,995 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-0.i[914,927] [2025-01-09 14:15:03,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:15:03,017 INFO L204 MainTranslator]: Completed translation [2025-01-09 14:15:03,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:03 WrapperNode [2025-01-09 14:15:03,018 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 14:15:03,019 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 14:15:03,019 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 14:15:03,019 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 14:15:03,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:03" (1/1) ... [2025-01-09 14:15:03,031 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:03" (1/1) ... [2025-01-09 14:15:03,047 INFO L138 Inliner]: procedures = 26, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 65 [2025-01-09 14:15:03,048 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 14:15:03,048 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 14:15:03,048 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 14:15:03,048 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 14:15:03,056 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:03" (1/1) ... [2025-01-09 14:15:03,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:03" (1/1) ... [2025-01-09 14:15:03,062 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:03" (1/1) ... [2025-01-09 14:15:03,070 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 14:15:03,070 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:03" (1/1) ... [2025-01-09 14:15:03,071 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:03" (1/1) ... [2025-01-09 14:15:03,075 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:03" (1/1) ... [2025-01-09 14:15:03,076 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:03" (1/1) ... [2025-01-09 14:15:03,078 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:03" (1/1) ... [2025-01-09 14:15:03,079 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:03" (1/1) ... [2025-01-09 14:15:03,080 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:03" (1/1) ... [2025-01-09 14:15:03,081 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 14:15:03,082 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 14:15:03,082 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 14:15:03,082 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 14:15:03,083 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:03" (1/1) ... [2025-01-09 14:15:03,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:15:03,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 14:15:03,110 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 14:15:03,113 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 14:15:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 14:15:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 14:15:03,129 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 14:15:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 14:15:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 14:15:03,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 14:15:03,174 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 14:15:03,176 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 14:15:03,315 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-01-09 14:15:03,316 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 14:15:03,324 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 14:15:03,326 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 14:15:03,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:15:03 BoogieIcfgContainer [2025-01-09 14:15:03,326 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 14:15:03,328 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 14:15:03,328 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 14:15:03,332 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 14:15:03,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 02:15:02" (1/3) ... [2025-01-09 14:15:03,334 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178afba6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:15:03, skipping insertion in model container [2025-01-09 14:15:03,335 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:03" (2/3) ... [2025-01-09 14:15:03,335 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178afba6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:15:03, skipping insertion in model container [2025-01-09 14:15:03,335 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:15:03" (3/3) ... [2025-01-09 14:15:03,337 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-0.i [2025-01-09 14:15:03,349 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 14:15:03,351 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-0.i that has 2 procedures, 31 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 14:15:03,409 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 14:15:03,421 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;@17948e08, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 14:15:03,422 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 14:15:03,426 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 22 states have internal predecessors, (26), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-01-09 14:15:03,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-01-09 14:15:03,432 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:15:03,433 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 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 14:15:03,433 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:15:03,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:15:03,439 INFO L85 PathProgramCache]: Analyzing trace with hash 928616723, now seen corresponding path program 1 times [2025-01-09 14:15:03,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:15:03,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348731807] [2025-01-09 14:15:03,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:15:03,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:15:03,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-01-09 14:15:03,528 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-01-09 14:15:03,530 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:15:03,530 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:15:03,614 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-01-09 14:15:03,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 14:15:03,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348731807] [2025-01-09 14:15:03,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348731807] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 14:15:03,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594827648] [2025-01-09 14:15:03,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:15:03,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 14:15:03,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 14:15:03,622 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 14:15:03,623 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 14:15:03,668 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-01-09 14:15:03,695 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-01-09 14:15:03,696 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:15:03,696 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:15:03,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 14:15:03,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 14:15:03,714 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-01-09 14:15:03,715 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 14:15:03,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594827648] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 14:15:03,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 14:15:03,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 14:15:03,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234651069] [2025-01-09 14:15:03,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 14:15:03,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 14:15:03,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 14:15:03,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 14:15:03,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 14:15:03,738 INFO L87 Difference]: Start difference. First operand has 31 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 22 states have internal predecessors, (26), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2025-01-09 14:15:03,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:15:03,754 INFO L93 Difference]: Finished difference Result 56 states and 82 transitions. [2025-01-09 14:15:03,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 14:15:03,756 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 50 [2025-01-09 14:15:03,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:15:03,761 INFO L225 Difference]: With dead ends: 56 [2025-01-09 14:15:03,761 INFO L226 Difference]: Without dead ends: 28 [2025-01-09 14:15:03,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 51 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 14:15:03,769 INFO L435 NwaCegarLoop]: 35 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, 35 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 14:15:03,771 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 14:15:03,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2025-01-09 14:15:03,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2025-01-09 14:15:03,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-01-09 14:15:03,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2025-01-09 14:15:03,805 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 50 [2025-01-09 14:15:03,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:15:03,806 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2025-01-09 14:15:03,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2025-01-09 14:15:03,806 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2025-01-09 14:15:03,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-01-09 14:15:03,809 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:15:03,809 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 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 14:15:03,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-09 14:15:04,014 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 14:15:04,014 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:15:04,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:15:04,015 INFO L85 PathProgramCache]: Analyzing trace with hash 384196121, now seen corresponding path program 1 times [2025-01-09 14:15:04,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:15:04,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047906194] [2025-01-09 14:15:04,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:15:04,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:15:04,037 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-01-09 14:15:04,070 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-01-09 14:15:04,070 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:15:04,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 14:15:04,071 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 14:15:04,079 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-01-09 14:15:04,105 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-01-09 14:15:04,106 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:15:04,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 14:15:04,128 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 14:15:04,129 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 14:15:04,130 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 14:15:04,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 14:15:04,133 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-09 14:15:04,161 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 14:15:04,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 02:15:04 BoogieIcfgContainer [2025-01-09 14:15:04,169 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 14:15:04,170 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 14:15:04,170 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 14:15:04,170 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 14:15:04,170 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:15:03" (3/4) ... [2025-01-09 14:15:04,172 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 14:15:04,173 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 14:15:04,174 INFO L158 Benchmark]: Toolchain (without parser) took 1374.88ms. Allocated memory is still 142.6MB. Free memory was 112.4MB in the beginning and 50.0MB in the end (delta: 62.5MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-01-09 14:15:04,174 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 122.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 14:15:04,174 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.64ms. Allocated memory is still 142.6MB. Free memory was 112.4MB in the beginning and 101.3MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 14:15:04,174 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.63ms. Allocated memory is still 142.6MB. Free memory was 101.3MB in the beginning and 99.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 14:15:04,174 INFO L158 Benchmark]: Boogie Preprocessor took 33.30ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 98.3MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 14:15:04,175 INFO L158 Benchmark]: RCFGBuilder took 244.24ms. Allocated memory is still 142.6MB. Free memory was 98.3MB in the beginning and 87.0MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 14:15:04,175 INFO L158 Benchmark]: TraceAbstraction took 840.96ms. Allocated memory is still 142.6MB. Free memory was 86.5MB in the beginning and 50.5MB in the end (delta: 36.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-01-09 14:15:04,175 INFO L158 Benchmark]: Witness Printer took 3.52ms. Allocated memory is still 142.6MB. Free memory was 50.5MB in the beginning and 50.0MB in the end (delta: 489.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 14:15:04,176 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 122.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 218.64ms. Allocated memory is still 142.6MB. Free memory was 112.4MB in the beginning and 101.3MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.63ms. Allocated memory is still 142.6MB. Free memory was 101.3MB in the beginning and 99.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.30ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 98.3MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 244.24ms. Allocated memory is still 142.6MB. Free memory was 98.3MB in the beginning and 87.0MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 840.96ms. Allocated memory is still 142.6MB. Free memory was 86.5MB in the beginning and 50.5MB in the end (delta: 36.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 3.52ms. Allocated memory is still 142.6MB. Free memory was 50.5MB in the beginning and 50.0MB in the end (delta: 489.1kB). 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 41, overapproximation of someBinaryFLOATComparisonOperation at line 33, overapproximation of someBinaryFLOATComparisonOperation at line 43, overapproximation of someBinaryFLOATComparisonOperation at line 54, overapproximation of someBinaryFLOATComparisonOperation at line 39, overapproximation of someBinaryArithmeticFLOAToperation at line 32. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 31.25; [L23] float var_1_2 = 31.2; [L24] float var_1_3 = 0.0; [L25] float var_1_4 = 64.125; [L26] signed short int var_1_5 = -128; [L27] signed short int var_1_6 = 10; [L28] signed short int var_1_7 = -4; VAL [isInitial=0, var_1_1=125/4, var_1_2=156/5, var_1_3=0, var_1_4=513/8, var_1_5=-128, var_1_6=10, var_1_7=-4] [L58] isInitial = 1 [L59] FCALL initially() [L61] FCALL updateLastVariables() [L62] CALL updateVariables() [L38] var_1_2 = __VERIFIER_nondet_float() [L39] CALL assume_abort_if_not((var_1_2 >= 0.0F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854765600e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=125/4, var_1_3=0, var_1_4=513/8, var_1_5=-128, var_1_6=10, var_1_7=-4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=125/4, var_1_3=0, var_1_4=513/8, var_1_5=-128, var_1_6=10, var_1_7=-4] [L39] RET assume_abort_if_not((var_1_2 >= 0.0F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854765600e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=125/4, var_1_3=0, var_1_4=513/8, var_1_5=-128, var_1_6=10, var_1_7=-4] [L40] var_1_3 = __VERIFIER_nondet_float() [L41] CALL assume_abort_if_not((var_1_3 >= 4611686.018427382800e+12F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=125/4, var_1_4=513/8, var_1_5=-128, var_1_6=10, var_1_7=-4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=125/4, var_1_4=513/8, var_1_5=-128, var_1_6=10, var_1_7=-4] [L41] RET assume_abort_if_not((var_1_3 >= 4611686.018427382800e+12F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=125/4, var_1_4=513/8, var_1_5=-128, var_1_6=10, var_1_7=-4] [L42] var_1_4 = __VERIFIER_nondet_float() [L43] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 4611686.018427382800e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=125/4, var_1_5=-128, var_1_6=10, var_1_7=-4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=125/4, var_1_5=-128, var_1_6=10, var_1_7=-4] [L43] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 4611686.018427382800e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=125/4, var_1_5=-128, var_1_6=10, var_1_7=-4] [L44] var_1_6 = __VERIFIER_nondet_short() [L45] CALL assume_abort_if_not(var_1_6 >= -16383) VAL [\old(cond)=1, isInitial=1, var_1_1=125/4, var_1_5=-128, var_1_6=16383, var_1_7=-4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=125/4, var_1_5=-128, var_1_6=16383, var_1_7=-4] [L45] RET assume_abort_if_not(var_1_6 >= -16383) VAL [isInitial=1, var_1_1=125/4, var_1_5=-128, var_1_6=16383, var_1_7=-4] [L46] CALL assume_abort_if_not(var_1_6 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_1=125/4, var_1_5=-128, var_1_6=16383, var_1_7=-4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=125/4, var_1_5=-128, var_1_6=16383, var_1_7=-4] [L46] RET assume_abort_if_not(var_1_6 <= 16383) VAL [isInitial=1, var_1_1=125/4, var_1_5=-128, var_1_6=16383, var_1_7=-4] [L47] var_1_7 = __VERIFIER_nondet_short() [L48] CALL assume_abort_if_not(var_1_7 >= -16383) VAL [\old(cond)=1, isInitial=1, var_1_1=125/4, var_1_5=-128, var_1_6=16383, var_1_7=-16383] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=125/4, var_1_5=-128, var_1_6=16383, var_1_7=-16383] [L48] RET assume_abort_if_not(var_1_7 >= -16383) VAL [isInitial=1, var_1_1=125/4, var_1_5=-128, var_1_6=16383, var_1_7=-16383] [L49] CALL assume_abort_if_not(var_1_7 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_1=125/4, var_1_5=-128, var_1_6=16383, var_1_7=-16383] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=125/4, var_1_5=-128, var_1_6=16383, var_1_7=-16383] [L49] RET assume_abort_if_not(var_1_7 <= 16383) VAL [isInitial=1, var_1_1=125/4, var_1_5=-128, var_1_6=16383, var_1_7=-16383] [L62] RET updateVariables() [L63] CALL step() [L32] var_1_1 = (((((256.75f) < (var_1_2)) ? (256.75f) : (var_1_2))) - (var_1_3 - var_1_4)) VAL [isInitial=1, var_1_5=-128, var_1_6=16383, var_1_7=-16383] [L33] COND TRUE var_1_4 <= (var_1_2 + (var_1_3 + var_1_1)) [L34] var_1_5 = (var_1_6 + var_1_7) VAL [isInitial=1, var_1_5=0, var_1_6=16383, var_1_7=-16383] [L63] RET step() [L64] CALL, EXPR property() [L54-L55] return (var_1_1 == ((float) (((((256.75f) < (var_1_2)) ? (256.75f) : (var_1_2))) - (var_1_3 - var_1_4)))) && ((var_1_4 <= (var_1_2 + (var_1_3 + var_1_1))) ? (var_1_5 == ((signed short int) (var_1_6 + var_1_7))) : 1) ; VAL [\result=0, isInitial=1, var_1_5=0, var_1_6=16383, var_1_7=-16383] [L64] RET, EXPR property() [L64] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_5=0, var_1_6=16383, var_1_7=-16383] [L19] reach_error() VAL [isInitial=1, var_1_5=0, var_1_6=16383, var_1_7=-16383] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 35 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, 35 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 98 SizeOfPredicates, 0 NumberOfNonLiveVariables, 128 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 156/168 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 14:15:04,194 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-0.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 342a391425e9273144e7f8d0607b5266ee0425388e31ab43115bf3acb263154c --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 14:15:06,100 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 14:15:06,172 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 14:15:06,177 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 14:15:06,178 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 14:15:06,193 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 14:15:06,194 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 14:15:06,194 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 14:15:06,194 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 14:15:06,194 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 14:15:06,195 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 14:15:06,195 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 14:15:06,195 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 14:15:06,195 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 14:15:06,195 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 14:15:06,195 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 14:15:06,195 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 14:15:06,195 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 14:15:06,195 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 14:15:06,196 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 14:15:06,196 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 14:15:06,196 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 14:15:06,196 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 14:15:06,196 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 14:15:06,196 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 14:15:06,196 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 14:15:06,196 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 14:15:06,196 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 14:15:06,196 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 14:15:06,196 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 14:15:06,196 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 14:15:06,196 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:15:06,196 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:15:06,196 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:15:06,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:15:06,197 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 14:15:06,197 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:15:06,197 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:15:06,197 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:15:06,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:15:06,197 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 14:15:06,197 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 14:15:06,197 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 14:15:06,197 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 14:15:06,197 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 14:15:06,197 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 14:15:06,197 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 14:15:06,197 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 14:15:06,197 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 14:15:06,197 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 14:15:06,197 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 -> 342a391425e9273144e7f8d0607b5266ee0425388e31ab43115bf3acb263154c [2025-01-09 14:15:06,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 14:15:06,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 14:15:06,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 14:15:06,449 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 14:15:06,450 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 14:15:06,451 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-0.i [2025-01-09 14:15:07,706 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f67d7fe4e/0a2824f7d85647de9c2f11de272d6f7c/FLAGc54b49df8 [2025-01-09 14:15:07,897 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 14:15:07,897 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-0.i [2025-01-09 14:15:07,906 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f67d7fe4e/0a2824f7d85647de9c2f11de272d6f7c/FLAGc54b49df8 [2025-01-09 14:15:08,259 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f67d7fe4e/0a2824f7d85647de9c2f11de272d6f7c [2025-01-09 14:15:08,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 14:15:08,263 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 14:15:08,264 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 14:15:08,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 14:15:08,267 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 14:15:08,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:15:08" (1/1) ... [2025-01-09 14:15:08,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@307952d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:08, skipping insertion in model container [2025-01-09 14:15:08,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:15:08" (1/1) ... [2025-01-09 14:15:08,279 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 14:15:08,395 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-0.i[914,927] [2025-01-09 14:15:08,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:15:08,444 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 14:15:08,453 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-0.i[914,927] [2025-01-09 14:15:08,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:15:08,487 INFO L204 MainTranslator]: Completed translation [2025-01-09 14:15:08,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:08 WrapperNode [2025-01-09 14:15:08,489 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 14:15:08,490 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 14:15:08,490 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 14:15:08,490 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 14:15:08,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:08" (1/1) ... [2025-01-09 14:15:08,507 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:08" (1/1) ... [2025-01-09 14:15:08,521 INFO L138 Inliner]: procedures = 27, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 63 [2025-01-09 14:15:08,522 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 14:15:08,523 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 14:15:08,523 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 14:15:08,523 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 14:15:08,529 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:08" (1/1) ... [2025-01-09 14:15:08,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:08" (1/1) ... [2025-01-09 14:15:08,531 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:08" (1/1) ... [2025-01-09 14:15:08,541 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 14:15:08,542 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:08" (1/1) ... [2025-01-09 14:15:08,542 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:08" (1/1) ... [2025-01-09 14:15:08,547 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:08" (1/1) ... [2025-01-09 14:15:08,548 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:08" (1/1) ... [2025-01-09 14:15:08,550 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:08" (1/1) ... [2025-01-09 14:15:08,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:08" (1/1) ... [2025-01-09 14:15:08,552 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:08" (1/1) ... [2025-01-09 14:15:08,554 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 14:15:08,554 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 14:15:08,554 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 14:15:08,554 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 14:15:08,555 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:08" (1/1) ... [2025-01-09 14:15:08,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:15:08,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 14:15:08,587 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 14:15:08,596 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 14:15:08,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 14:15:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 14:15:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 14:15:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 14:15:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 14:15:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 14:15:08,659 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 14:15:08,660 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 14:15:11,194 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-01-09 14:15:11,195 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 14:15:11,202 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 14:15:11,202 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 14:15:11,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:15:11 BoogieIcfgContainer [2025-01-09 14:15:11,203 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 14:15:11,204 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 14:15:11,205 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 14:15:11,209 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 14:15:11,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 02:15:08" (1/3) ... [2025-01-09 14:15:11,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d770dfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:15:11, skipping insertion in model container [2025-01-09 14:15:11,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:15:08" (2/3) ... [2025-01-09 14:15:11,210 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d770dfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:15:11, skipping insertion in model container [2025-01-09 14:15:11,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:15:11" (3/3) ... [2025-01-09 14:15:11,212 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-0.i [2025-01-09 14:15:11,223 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 14:15:11,224 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-0.i that has 2 procedures, 31 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 14:15:11,259 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 14:15:11,267 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;@e5c9284, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 14:15:11,267 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 14:15:11,270 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 22 states have internal predecessors, (26), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-01-09 14:15:11,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-01-09 14:15:11,276 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:15:11,276 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 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 14:15:11,277 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:15:11,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:15:11,281 INFO L85 PathProgramCache]: Analyzing trace with hash 928616723, now seen corresponding path program 1 times [2025-01-09 14:15:11,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 14:15:11,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514223060] [2025-01-09 14:15:11,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:15:11,288 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 14:15:11,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 14:15:11,292 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 14:15:11,293 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 14:15:11,334 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-01-09 14:15:11,469 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-01-09 14:15:11,470 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:15:11,470 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:15:11,476 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 14:15:11,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 14:15:11,501 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-01-09 14:15:11,502 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 14:15:11,502 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 14:15:11,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [514223060] [2025-01-09 14:15:11,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [514223060] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 14:15:11,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 14:15:11,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 14:15:11,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454702494] [2025-01-09 14:15:11,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 14:15:11,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 14:15:11,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 14:15:11,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 14:15:11,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 14:15:11,526 INFO L87 Difference]: Start difference. First operand has 31 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 22 states have internal predecessors, (26), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-01-09 14:15:11,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:15:11,539 INFO L93 Difference]: Finished difference Result 56 states and 82 transitions. [2025-01-09 14:15:11,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 14:15:11,540 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 50 [2025-01-09 14:15:11,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:15:11,544 INFO L225 Difference]: With dead ends: 56 [2025-01-09 14:15:11,544 INFO L226 Difference]: Without dead ends: 28 [2025-01-09 14:15:11,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 49 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 14:15:11,549 INFO L435 NwaCegarLoop]: 35 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, 35 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 14:15:11,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 14:15:11,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2025-01-09 14:15:11,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2025-01-09 14:15:11,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-01-09 14:15:11,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2025-01-09 14:15:11,580 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 50 [2025-01-09 14:15:11,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:15:11,581 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2025-01-09 14:15:11,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-01-09 14:15:11,581 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2025-01-09 14:15:11,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-01-09 14:15:11,583 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:15:11,583 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 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 14:15:11,590 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 14:15:11,783 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 14:15:11,784 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:15:11,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:15:11,784 INFO L85 PathProgramCache]: Analyzing trace with hash 384196121, now seen corresponding path program 1 times [2025-01-09 14:15:11,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 14:15:11,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44896199] [2025-01-09 14:15:11,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:15:11,785 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 14:15:11,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 14:15:11,788 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 14:15:11,789 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 14:15:11,815 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-01-09 14:15:11,939 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-01-09 14:15:11,939 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:15:11,939 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:15:11,945 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 14:15:11,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 14:15:25,483 WARN L286 SmtUtils]: Spent 6.46s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-01-09 14:15:31,476 WARN L286 SmtUtils]: Spent 5.99s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-01-09 14:15:37,703 WARN L286 SmtUtils]: Spent 6.23s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-01-09 14:15:54,743 WARN L851 $PredicateComparison]: unable to prove that (and (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1027.0 4.0)))) (let ((.cse2 (fp.lt .cse0 c_~var_1_2~0)) (.cse1 (fp.sub c_currentRoundingMode c_~var_1_3~0 c_~var_1_4~0))) (or (and (= c_~var_1_1~0 (fp.sub c_currentRoundingMode .cse0 .cse1)) .cse2) (and (not .cse2) (= c_~var_1_1~0 (fp.sub c_currentRoundingMode c_~var_1_2~0 .cse1)))))) (fp.leq c_~var_1_4~0 (fp.add c_currentRoundingMode c_~var_1_2~0 (fp.add c_currentRoundingMode c_~var_1_3~0 c_~var_1_1~0))) (= ((_ extract 15 0) (bvadd ((_ sign_extend 16) c_~var_1_7~0) ((_ sign_extend 16) c_~var_1_6~0))) c_~var_1_5~0) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2025-01-09 14:16:04,105 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-01-09 14:16:04,106 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 14:16:04,106 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 14:16:04,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44896199] [2025-01-09 14:16:04,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44896199] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 14:16:04,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 14:16:04,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 14:16:04,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110905712] [2025-01-09 14:16:04,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 14:16:04,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 14:16:04,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 14:16:04,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 14:16:04,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=21, Unknown=1, NotChecked=8, Total=42 [2025-01-09 14:16:04,109 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-01-09 14:16:19,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.50s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 14:16:22,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.26s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 14:16:25,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.18s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 14:16:29,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.75s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 14:16:33,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.90s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 14:16:37,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 14:16:39,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 14:16:43,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 14:16:47,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 14:16:48,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 14:16:49,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []