./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.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-95.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 d108156f6bbb1643a63c117926d89d2b1bdfe70b74930503a22a3dbb7e6dc546 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 14:19:28,425 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 14:19:28,483 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 14:19:28,488 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 14:19:28,488 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 14:19:28,515 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 14:19:28,515 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 14:19:28,515 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 14:19:28,516 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 14:19:28,516 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 14:19:28,516 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 14:19:28,516 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 14:19:28,516 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 14:19:28,516 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 14:19:28,516 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 14:19:28,517 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 14:19:28,517 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 14:19:28,517 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 14:19:28,517 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 14:19:28,517 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 14:19:28,517 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 14:19:28,517 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 14:19:28,517 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 14:19:28,517 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 14:19:28,517 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 14:19:28,519 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 14:19:28,519 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 14:19:28,520 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 14:19:28,520 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 14:19:28,520 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:19:28,520 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:19:28,520 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:19:28,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:19:28,521 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 14:19:28,521 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:19:28,521 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:19:28,521 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:19:28,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:19:28,521 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 14:19:28,521 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 14:19:28,521 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 14:19:28,522 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 14:19:28,522 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 14:19:28,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 14:19:28,522 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 14:19:28,522 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 14:19:28,522 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 14:19:28,522 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 14:19:28,523 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 -> d108156f6bbb1643a63c117926d89d2b1bdfe70b74930503a22a3dbb7e6dc546 [2025-01-09 14:19:28,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 14:19:28,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 14:19:28,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 14:19:28,858 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 14:19:28,859 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 14:19:28,860 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.i [2025-01-09 14:19:30,194 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9db09571d/2734cca784544998b8e895aff032b54e/FLAG9f2eca65d [2025-01-09 14:19:30,444 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 14:19:30,445 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.i [2025-01-09 14:19:30,453 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9db09571d/2734cca784544998b8e895aff032b54e/FLAG9f2eca65d [2025-01-09 14:19:30,475 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9db09571d/2734cca784544998b8e895aff032b54e [2025-01-09 14:19:30,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 14:19:30,479 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 14:19:30,482 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 14:19:30,482 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 14:19:30,487 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 14:19:30,488 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:19:30" (1/1) ... [2025-01-09 14:19:30,489 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@960103e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:30, skipping insertion in model container [2025-01-09 14:19:30,489 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:19:30" (1/1) ... [2025-01-09 14:19:30,504 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 14:19:30,636 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-95.i[915,928] [2025-01-09 14:19:30,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:19:30,693 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 14:19:30,703 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-95.i[915,928] [2025-01-09 14:19:30,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:19:30,742 INFO L204 MainTranslator]: Completed translation [2025-01-09 14:19:30,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:30 WrapperNode [2025-01-09 14:19:30,744 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 14:19:30,745 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 14:19:30,745 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 14:19:30,746 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 14:19:30,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:30" (1/1) ... [2025-01-09 14:19:30,759 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:30" (1/1) ... [2025-01-09 14:19:30,783 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 82 [2025-01-09 14:19:30,783 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 14:19:30,784 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 14:19:30,784 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 14:19:30,784 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 14:19:30,795 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:30" (1/1) ... [2025-01-09 14:19:30,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:30" (1/1) ... [2025-01-09 14:19:30,797 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:30" (1/1) ... [2025-01-09 14:19:30,816 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 14:19:30,817 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:30" (1/1) ... [2025-01-09 14:19:30,817 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:30" (1/1) ... [2025-01-09 14:19:30,821 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:30" (1/1) ... [2025-01-09 14:19:30,825 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:30" (1/1) ... [2025-01-09 14:19:30,827 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:30" (1/1) ... [2025-01-09 14:19:30,830 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:30" (1/1) ... [2025-01-09 14:19:30,834 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:30" (1/1) ... [2025-01-09 14:19:30,836 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 14:19:30,836 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 14:19:30,836 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 14:19:30,837 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 14:19:30,837 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:30" (1/1) ... [2025-01-09 14:19:30,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:19:30,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 14:19:30,874 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 14:19:30,881 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 14:19:30,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 14:19:30,898 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 14:19:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 14:19:30,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 14:19:30,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 14:19:30,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 14:19:30,963 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 14:19:30,965 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 14:19:31,120 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-01-09 14:19:31,121 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 14:19:31,130 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 14:19:31,131 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 14:19:31,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:19:31 BoogieIcfgContainer [2025-01-09 14:19:31,131 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 14:19:31,133 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 14:19:31,133 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 14:19:31,137 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 14:19:31,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 02:19:30" (1/3) ... [2025-01-09 14:19:31,138 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2240b1bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:19:31, skipping insertion in model container [2025-01-09 14:19:31,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:30" (2/3) ... [2025-01-09 14:19:31,139 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2240b1bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:19:31, skipping insertion in model container [2025-01-09 14:19:31,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:19:31" (3/3) ... [2025-01-09 14:19:31,140 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-95.i [2025-01-09 14:19:31,154 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 14:19:31,156 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-95.i that has 2 procedures, 38 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 14:19:31,213 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 14:19:31,223 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;@7166271e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 14:19:31,225 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 14:19:31,230 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-01-09 14:19:31,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-01-09 14:19:31,237 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:19:31,238 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:19:31,238 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:19:31,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:19:31,243 INFO L85 PathProgramCache]: Analyzing trace with hash 105128373, now seen corresponding path program 1 times [2025-01-09 14:19:31,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:19:31,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718187433] [2025-01-09 14:19:31,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:19:31,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:19:31,326 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-01-09 14:19:31,347 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-01-09 14:19:31,348 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:19:31,350 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:19:31,472 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2025-01-09 14:19:31,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 14:19:31,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718187433] [2025-01-09 14:19:31,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718187433] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 14:19:31,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904498501] [2025-01-09 14:19:31,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:19:31,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 14:19:31,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 14:19:31,477 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 14:19:31,478 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 14:19:31,538 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-01-09 14:19:31,573 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-01-09 14:19:31,573 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:19:31,573 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:19:31,575 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 14:19:31,581 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 14:19:31,596 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2025-01-09 14:19:31,597 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 14:19:31,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904498501] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 14:19:31,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 14:19:31,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 14:19:31,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206125920] [2025-01-09 14:19:31,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 14:19:31,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 14:19:31,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 14:19:31,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 14:19:31,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 14:19:31,620 INFO L87 Difference]: Start difference. First operand has 38 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 14:19:31,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:19:31,636 INFO L93 Difference]: Finished difference Result 70 states and 105 transitions. [2025-01-09 14:19:31,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 14:19:31,638 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 69 [2025-01-09 14:19:31,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:19:31,644 INFO L225 Difference]: With dead ends: 70 [2025-01-09 14:19:31,644 INFO L226 Difference]: Without dead ends: 35 [2025-01-09 14:19:31,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 70 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 14:19:31,649 INFO L435 NwaCegarLoop]: 45 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, 45 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 14:19:31,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 14:19:31,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2025-01-09 14:19:31,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2025-01-09 14:19:31,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 23 states have internal predecessors, (25), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-01-09 14:19:31,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2025-01-09 14:19:31,689 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 69 [2025-01-09 14:19:31,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:19:31,690 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions. [2025-01-09 14:19:31,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 14:19:31,690 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2025-01-09 14:19:31,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-01-09 14:19:31,694 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:19:31,694 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:19:31,702 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 14:19:31,895 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 14:19:31,895 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:19:31,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:19:31,896 INFO L85 PathProgramCache]: Analyzing trace with hash 646825641, now seen corresponding path program 1 times [2025-01-09 14:19:31,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:19:31,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836602794] [2025-01-09 14:19:31,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:19:31,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:19:31,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-01-09 14:19:31,973 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-01-09 14:19:31,974 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:19:31,974 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 14:19:31,974 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 14:19:31,981 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-01-09 14:19:32,022 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-01-09 14:19:32,022 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:19:32,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 14:19:32,050 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 14:19:32,050 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 14:19:32,051 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 14:19:32,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 14:19:32,056 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-09 14:19:32,102 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 14:19:32,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 02:19:32 BoogieIcfgContainer [2025-01-09 14:19:32,106 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 14:19:32,106 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 14:19:32,107 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 14:19:32,107 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 14:19:32,107 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:19:31" (3/4) ... [2025-01-09 14:19:32,109 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 14:19:32,110 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 14:19:32,111 INFO L158 Benchmark]: Toolchain (without parser) took 1631.64ms. Allocated memory is still 142.6MB. Free memory was 111.8MB in the beginning and 42.6MB in the end (delta: 69.2MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-01-09 14:19:32,111 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 14:19:32,111 INFO L158 Benchmark]: CACSL2BoogieTranslator took 264.40ms. Allocated memory is still 142.6MB. Free memory was 111.8MB in the beginning and 99.8MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 14:19:32,111 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.24ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 98.2MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 14:19:32,112 INFO L158 Benchmark]: Boogie Preprocessor took 51.83ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 96.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 14:19:32,112 INFO L158 Benchmark]: RCFGBuilder took 294.65ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 84.9MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 14:19:32,112 INFO L158 Benchmark]: TraceAbstraction took 972.94ms. Allocated memory is still 142.6MB. Free memory was 84.1MB in the beginning and 42.6MB in the end (delta: 41.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-01-09 14:19:32,112 INFO L158 Benchmark]: Witness Printer took 3.63ms. Allocated memory is still 142.6MB. Free memory is still 42.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 14:19:32,113 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 264.40ms. Allocated memory is still 142.6MB. Free memory was 111.8MB in the beginning and 99.8MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.24ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 98.2MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.83ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 96.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 294.65ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 84.9MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 972.94ms. Allocated memory is still 142.6MB. Free memory was 84.1MB in the beginning and 42.6MB in the end (delta: 41.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 3.63ms. Allocated memory is still 142.6MB. Free memory is still 42.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 46, overapproximation of someBinaryDOUBLEComparisonOperation at line 54, overapproximation of someBinaryDOUBLEComparisonOperation at line 56, overapproximation of someBinaryDOUBLEComparisonOperation at line 67, overapproximation of someBinaryDOUBLEComparisonOperation at line 52, overapproximation of someBinaryDOUBLEComparisonOperation at line 36, overapproximation of someBinaryDOUBLEComparisonOperation at line 48, overapproximation of someBinaryDOUBLEComparisonOperation at line 50. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 24.5; [L23] double var_1_2 = 9.4; [L24] double var_1_3 = 7.8; [L25] double var_1_4 = 127.84; [L26] double var_1_5 = 999999999.5; [L27] double var_1_6 = 0.0; [L28] double var_1_7 = 9999999.8; [L29] unsigned short int var_1_8 = 10; [L30] unsigned short int var_1_9 = 5; [L31] signed char var_1_10 = 4; [L32] signed char var_1_11 = -16; VAL [isInitial=0, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_2=47/5, var_1_3=39/5, var_1_4=3196/25, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L71] isInitial = 1 [L72] FCALL initially() [L74] FCALL updateLastVariables() [L75] CALL updateVariables() [L45] var_1_2 = __VERIFIER_nondet_double() [L46] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_3=39/5, var_1_4=3196/25, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_3=39/5, var_1_4=3196/25, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L46] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_3=39/5, var_1_4=3196/25, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L47] var_1_3 = __VERIFIER_nondet_double() [L48] CALL assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_4=3196/25, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_4=3196/25, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L48] RET assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_4=3196/25, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L49] var_1_4 = __VERIFIER_nondet_double() [L50] CALL assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L50] RET assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L51] var_1_5 = __VERIFIER_nondet_double() [L52] CALL assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L52] RET assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L53] var_1_6 = __VERIFIER_nondet_double() [L54] CALL assume_abort_if_not((var_1_6 >= 4611686.018427382800e+12F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L54] RET assume_abort_if_not((var_1_6 >= 4611686.018427382800e+12F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L55] var_1_7 = __VERIFIER_nondet_double() [L56] CALL assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 4611686.018427382800e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_8=10, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_8=10, var_1_9=5] [L56] RET assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 4611686.018427382800e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_8=10, var_1_9=5] [L57] var_1_9 = __VERIFIER_nondet_ushort() [L58] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_8=10] [L58] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_8=10] [L59] CALL assume_abort_if_not(var_1_9 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_8=10, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_8=10, var_1_9=-2] [L59] RET assume_abort_if_not(var_1_9 <= 65534) VAL [isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_8=10, var_1_9=-2] [L60] var_1_11 = __VERIFIER_nondet_char() [L61] CALL assume_abort_if_not(var_1_11 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=126, var_1_1=49/2, var_1_8=10, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=126, var_1_1=49/2, var_1_8=10, var_1_9=-2] [L61] RET assume_abort_if_not(var_1_11 >= -127) VAL [isInitial=1, var_1_10=4, var_1_11=126, var_1_1=49/2, var_1_8=10, var_1_9=-2] [L62] CALL assume_abort_if_not(var_1_11 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=126, var_1_1=49/2, var_1_8=10, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=126, var_1_1=49/2, var_1_8=10, var_1_9=-2] [L62] RET assume_abort_if_not(var_1_11 <= 126) VAL [isInitial=1, var_1_10=4, var_1_11=126, var_1_1=49/2, var_1_8=10, var_1_9=-2] [L75] RET updateVariables() [L76] CALL step() [L36] COND TRUE var_1_2 < (var_1_3 - 9.108) [L37] var_1_1 = ((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5))) VAL [isInitial=1, var_1_10=4, var_1_11=126, var_1_1=1000000004, var_1_4=1000000004, var_1_5=1000000004, var_1_8=10, var_1_9=-2] [L41] var_1_8 = var_1_9 [L42] var_1_10 = var_1_11 VAL [isInitial=1, var_1_10=126, var_1_11=126, var_1_1=1000000004, var_1_4=1000000004, var_1_5=1000000004, var_1_8=-2, var_1_9=-2] [L76] RET step() [L77] CALL, EXPR property() [L67-L68] return (((var_1_2 < (var_1_3 - 9.108)) ? (var_1_1 == ((double) ((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5))))) : (var_1_1 == ((double) ((var_1_6 - var_1_7) - 32.925)))) && (var_1_8 == ((unsigned short int) var_1_9))) && (var_1_10 == ((signed char) var_1_11)) ; VAL [\result=0, isInitial=1, var_1_10=126, var_1_11=126, var_1_1=1000000004, var_1_4=1000000004, var_1_5=1000000004, var_1_8=-2, var_1_9=-2] [L77] RET, EXPR property() [L77] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=126, var_1_11=126, var_1_1=1000000004, var_1_4=1000000004, var_1_5=1000000004, var_1_8=-2, var_1_9=-2] [L19] reach_error() VAL [isInitial=1, var_1_10=126, var_1_11=126, var_1_1=1000000004, var_1_4=1000000004, var_1_5=1000000004, var_1_8=-2, var_1_9=-2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 10, 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, 45 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, 45 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 207 NumberOfCodeBlocks, 207 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 136 SizeOfPredicates, 0 NumberOfNonLiveVariables, 169 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 342/360 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 14:19:32,128 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-95.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 d108156f6bbb1643a63c117926d89d2b1bdfe70b74930503a22a3dbb7e6dc546 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 14:19:34,361 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 14:19:34,466 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 14:19:34,474 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 14:19:34,474 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 14:19:34,500 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 14:19:34,501 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 14:19:34,501 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 14:19:34,501 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 14:19:34,501 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 14:19:34,502 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 14:19:34,502 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 14:19:34,502 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 14:19:34,502 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 14:19:34,502 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 14:19:34,503 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 14:19:34,503 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 14:19:34,503 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 14:19:34,503 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 14:19:34,503 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 14:19:34,503 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 14:19:34,503 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 14:19:34,503 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 14:19:34,503 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 14:19:34,503 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 14:19:34,503 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 14:19:34,503 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 14:19:34,503 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 14:19:34,504 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 14:19:34,504 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 14:19:34,504 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 14:19:34,504 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:19:34,504 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:19:34,504 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:19:34,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:19:34,504 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 14:19:34,504 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:19:34,504 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:19:34,504 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:19:34,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:19:34,504 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 14:19:34,504 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 14:19:34,505 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 14:19:34,505 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 14:19:34,505 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 14:19:34,505 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 14:19:34,505 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 14:19:34,505 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 14:19:34,505 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 14:19:34,505 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 14:19:34,505 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 -> d108156f6bbb1643a63c117926d89d2b1bdfe70b74930503a22a3dbb7e6dc546 [2025-01-09 14:19:34,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 14:19:34,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 14:19:34,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 14:19:34,830 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 14:19:34,830 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 14:19:34,831 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.i [2025-01-09 14:19:36,155 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a78ebe1ec/34b23a29f95f467a87c5cdb66cdd29db/FLAGdbdb57933 [2025-01-09 14:19:36,410 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 14:19:36,411 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.i [2025-01-09 14:19:36,420 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a78ebe1ec/34b23a29f95f467a87c5cdb66cdd29db/FLAGdbdb57933 [2025-01-09 14:19:36,438 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a78ebe1ec/34b23a29f95f467a87c5cdb66cdd29db [2025-01-09 14:19:36,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 14:19:36,442 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 14:19:36,444 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 14:19:36,444 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 14:19:36,448 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 14:19:36,449 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:19:36" (1/1) ... [2025-01-09 14:19:36,450 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@691a27be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:36, skipping insertion in model container [2025-01-09 14:19:36,450 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:19:36" (1/1) ... [2025-01-09 14:19:36,470 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 14:19:36,608 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-95.i[915,928] [2025-01-09 14:19:36,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:19:36,671 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 14:19:36,682 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-95.i[915,928] [2025-01-09 14:19:36,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:19:36,723 INFO L204 MainTranslator]: Completed translation [2025-01-09 14:19:36,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:36 WrapperNode [2025-01-09 14:19:36,726 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 14:19:36,726 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 14:19:36,727 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 14:19:36,727 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 14:19:36,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:36" (1/1) ... [2025-01-09 14:19:36,742 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:36" (1/1) ... [2025-01-09 14:19:36,765 INFO L138 Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 81 [2025-01-09 14:19:36,765 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 14:19:36,766 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 14:19:36,766 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 14:19:36,766 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 14:19:36,774 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:36" (1/1) ... [2025-01-09 14:19:36,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:36" (1/1) ... [2025-01-09 14:19:36,780 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:36" (1/1) ... [2025-01-09 14:19:36,796 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 14:19:36,800 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:36" (1/1) ... [2025-01-09 14:19:36,800 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:36" (1/1) ... [2025-01-09 14:19:36,810 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:36" (1/1) ... [2025-01-09 14:19:36,811 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:36" (1/1) ... [2025-01-09 14:19:36,817 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:36" (1/1) ... [2025-01-09 14:19:36,818 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:36" (1/1) ... [2025-01-09 14:19:36,822 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:36" (1/1) ... [2025-01-09 14:19:36,824 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 14:19:36,828 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 14:19:36,828 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 14:19:36,828 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 14:19:36,829 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:36" (1/1) ... [2025-01-09 14:19:36,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:19:36,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 14:19:36,859 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 14:19:36,865 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 14:19:36,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 14:19:36,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 14:19:36,881 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 14:19:36,881 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 14:19:36,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 14:19:36,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 14:19:36,954 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 14:19:36,956 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 14:19:40,546 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-01-09 14:19:40,546 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 14:19:40,555 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 14:19:40,555 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 14:19:40,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:19:40 BoogieIcfgContainer [2025-01-09 14:19:40,556 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 14:19:40,558 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 14:19:40,558 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 14:19:40,564 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 14:19:40,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 02:19:36" (1/3) ... [2025-01-09 14:19:40,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d579554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:19:40, skipping insertion in model container [2025-01-09 14:19:40,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:36" (2/3) ... [2025-01-09 14:19:40,567 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d579554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:19:40, skipping insertion in model container [2025-01-09 14:19:40,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:19:40" (3/3) ... [2025-01-09 14:19:40,568 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-95.i [2025-01-09 14:19:40,580 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 14:19:40,582 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-95.i that has 2 procedures, 38 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 14:19:40,634 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 14:19:40,643 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@75af5ef3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 14:19:40,643 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 14:19:40,647 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-01-09 14:19:40,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-01-09 14:19:40,654 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:19:40,654 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:19:40,655 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:19:40,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:19:40,659 INFO L85 PathProgramCache]: Analyzing trace with hash 105128373, now seen corresponding path program 1 times [2025-01-09 14:19:40,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 14:19:40,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889522246] [2025-01-09 14:19:40,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:19:40,667 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 14:19:40,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 14:19:40,669 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 14:19:40,670 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 14:19:40,725 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-01-09 14:19:40,924 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-01-09 14:19:40,924 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:19:40,925 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:19:40,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 14:19:40,946 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 14:19:40,973 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2025-01-09 14:19:40,974 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 14:19:40,974 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 14:19:40,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889522246] [2025-01-09 14:19:40,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1889522246] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 14:19:40,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 14:19:40,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 14:19:40,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312087015] [2025-01-09 14:19:40,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 14:19:40,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 14:19:40,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 14:19:40,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 14:19:40,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 14:19:40,999 INFO L87 Difference]: Start difference. First operand has 38 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 14:19:41,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:19:41,012 INFO L93 Difference]: Finished difference Result 70 states and 105 transitions. [2025-01-09 14:19:41,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 14:19:41,014 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 69 [2025-01-09 14:19:41,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:19:41,018 INFO L225 Difference]: With dead ends: 70 [2025-01-09 14:19:41,018 INFO L226 Difference]: Without dead ends: 35 [2025-01-09 14:19:41,020 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 68 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 14:19:41,021 INFO L435 NwaCegarLoop]: 45 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, 45 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 14:19:41,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 14:19:41,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2025-01-09 14:19:41,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2025-01-09 14:19:41,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 23 states have internal predecessors, (25), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-01-09 14:19:41,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2025-01-09 14:19:41,050 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 69 [2025-01-09 14:19:41,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:19:41,050 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions. [2025-01-09 14:19:41,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 14:19:41,051 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2025-01-09 14:19:41,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-01-09 14:19:41,054 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:19:41,054 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:19:41,064 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 14:19:41,258 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 14:19:41,258 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:19:41,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:19:41,259 INFO L85 PathProgramCache]: Analyzing trace with hash 646825641, now seen corresponding path program 1 times [2025-01-09 14:19:41,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 14:19:41,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [647213169] [2025-01-09 14:19:41,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:19:41,260 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 14:19:41,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 14:19:41,262 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 14:19:41,263 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 14:19:41,300 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-01-09 14:19:41,534 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-01-09 14:19:41,534 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:19:41,534 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:19:41,544 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-09 14:19:41,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 14:21:09,105 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 78 proven. 36 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-01-09 14:21:09,106 INFO L312 TraceCheckSpWp]: Computing backward predicates...