./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-86.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-86.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 248e9a660b5341ec0894e1aed13dbcc752507598fe574e15afae8cc67f5cac10 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 14:18:59,705 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 14:18:59,763 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 14:18:59,768 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 14:18:59,768 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 14:18:59,797 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 14:18:59,798 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 14:18:59,798 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 14:18:59,798 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 14:18:59,799 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 14:18:59,799 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 14:18:59,800 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 14:18:59,800 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 14:18:59,800 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 14:18:59,800 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 14:18:59,801 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 14:18:59,801 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 14:18:59,801 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 14:18:59,801 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 14:18:59,801 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 14:18:59,801 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 14:18:59,802 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 14:18:59,802 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 14:18:59,802 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 14:18:59,802 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 14:18:59,802 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 14:18:59,802 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 14:18:59,802 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 14:18:59,802 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 14:18:59,802 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:18:59,803 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:18:59,803 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:18:59,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:18:59,803 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 14:18:59,803 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:18:59,803 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:18:59,803 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:18:59,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:18:59,804 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 14:18:59,804 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 14:18:59,804 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 14:18:59,804 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 14:18:59,804 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 14:18:59,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 14:18:59,805 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 14:18:59,805 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 14:18:59,805 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 14:18:59,805 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 14:18:59,805 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 -> 248e9a660b5341ec0894e1aed13dbcc752507598fe574e15afae8cc67f5cac10 [2025-01-09 14:19:00,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 14:19:00,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 14:19:00,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 14:19:00,081 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 14:19:00,081 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 14:19:00,083 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-86.i [2025-01-09 14:19:01,312 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0d3853f1e/9171760191924f44a353ba07f31cd2de/FLAG138b55836 [2025-01-09 14:19:01,558 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 14:19:01,559 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-86.i [2025-01-09 14:19:01,567 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0d3853f1e/9171760191924f44a353ba07f31cd2de/FLAG138b55836 [2025-01-09 14:19:01,585 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0d3853f1e/9171760191924f44a353ba07f31cd2de [2025-01-09 14:19:01,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 14:19:01,588 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 14:19:01,589 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 14:19:01,589 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 14:19:01,594 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 14:19:01,594 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:19:01" (1/1) ... [2025-01-09 14:19:01,595 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d32f61a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:01, skipping insertion in model container [2025-01-09 14:19:01,595 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:19:01" (1/1) ... [2025-01-09 14:19:01,611 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 14:19:01,742 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-86.i[915,928] [2025-01-09 14:19:01,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:19:01,774 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 14:19:01,783 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-86.i[915,928] [2025-01-09 14:19:01,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:19:01,812 INFO L204 MainTranslator]: Completed translation [2025-01-09 14:19:01,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:01 WrapperNode [2025-01-09 14:19:01,814 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 14:19:01,815 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 14:19:01,815 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 14:19:01,815 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 14:19:01,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:01" (1/1) ... [2025-01-09 14:19:01,833 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:01" (1/1) ... [2025-01-09 14:19:01,848 INFO L138 Inliner]: procedures = 26, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 61 [2025-01-09 14:19:01,848 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 14:19:01,849 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 14:19:01,849 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 14:19:01,849 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 14:19:01,856 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:01" (1/1) ... [2025-01-09 14:19:01,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:01" (1/1) ... [2025-01-09 14:19:01,857 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:01" (1/1) ... [2025-01-09 14:19:01,866 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 14:19:01,866 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:01" (1/1) ... [2025-01-09 14:19:01,866 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:01" (1/1) ... [2025-01-09 14:19:01,871 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:01" (1/1) ... [2025-01-09 14:19:01,872 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:01" (1/1) ... [2025-01-09 14:19:01,874 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:01" (1/1) ... [2025-01-09 14:19:01,875 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:01" (1/1) ... [2025-01-09 14:19:01,876 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:01" (1/1) ... [2025-01-09 14:19:01,877 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 14:19:01,878 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 14:19:01,878 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 14:19:01,878 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 14:19:01,880 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:01" (1/1) ... [2025-01-09 14:19:01,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:19:01,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 14:19:01,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 14:19:01,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 14:19:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 14:19:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 14:19:01,926 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 14:19:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 14:19:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 14:19:01,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 14:19:01,971 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 14:19:01,972 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 14:19:02,073 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-01-09 14:19:02,073 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 14:19:02,081 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 14:19:02,081 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 14:19:02,081 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:19:02 BoogieIcfgContainer [2025-01-09 14:19:02,081 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 14:19:02,085 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 14:19:02,085 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 14:19:02,090 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 14:19:02,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 02:19:01" (1/3) ... [2025-01-09 14:19:02,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@633857cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:19:02, skipping insertion in model container [2025-01-09 14:19:02,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:01" (2/3) ... [2025-01-09 14:19:02,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@633857cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:19:02, skipping insertion in model container [2025-01-09 14:19:02,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:19:02" (3/3) ... [2025-01-09 14:19:02,092 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-86.i [2025-01-09 14:19:02,104 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 14:19:02,106 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-86.i that has 2 procedures, 31 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 14:19:02,150 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 14:19:02,160 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;@4e6e2df6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 14:19:02,160 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 14:19:02,163 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 23 states have internal predecessors, (29), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-01-09 14:19:02,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-01-09 14:19:02,168 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:19:02,168 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 14:19:02,168 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:19:02,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:19:02,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1249005499, now seen corresponding path program 1 times [2025-01-09 14:19:02,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:19:02,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676581253] [2025-01-09 14:19:02,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:19:02,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:19:02,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-01-09 14:19:02,324 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-01-09 14:19:02,325 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:19:02,325 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 14:19:02,325 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 14:19:02,337 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-01-09 14:19:02,369 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-01-09 14:19:02,370 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:19:02,370 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 14:19:02,390 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 14:19:02,391 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 14:19:02,392 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 14:19:02,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 14:19:02,397 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-09 14:19:02,425 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 14:19:02,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 02:19:02 BoogieIcfgContainer [2025-01-09 14:19:02,427 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 14:19:02,428 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 14:19:02,428 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 14:19:02,428 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 14:19:02,429 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:19:02" (3/4) ... [2025-01-09 14:19:02,430 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 14:19:02,431 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 14:19:02,432 INFO L158 Benchmark]: Toolchain (without parser) took 843.62ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 61.7MB in the end (delta: 42.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-01-09 14:19:02,432 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 192.9MB. Free memory is still 119.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 14:19:02,432 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.31ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 92.7MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 14:19:02,432 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.54ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 91.3MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 14:19:02,432 INFO L158 Benchmark]: Boogie Preprocessor took 28.57ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 90.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 14:19:02,433 INFO L158 Benchmark]: RCFGBuilder took 203.02ms. Allocated memory is still 142.6MB. Free memory was 90.1MB in the beginning and 79.3MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 14:19:02,433 INFO L158 Benchmark]: TraceAbstraction took 342.92ms. Allocated memory is still 142.6MB. Free memory was 78.5MB in the beginning and 61.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 14:19:02,433 INFO L158 Benchmark]: Witness Printer took 2.84ms. Allocated memory is still 142.6MB. Free memory is still 61.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 14:19:02,434 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 192.9MB. Free memory is still 119.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.31ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 92.7MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.54ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 91.3MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.57ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 90.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 203.02ms. Allocated memory is still 142.6MB. Free memory was 90.1MB in the beginning and 79.3MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 342.92ms. Allocated memory is still 142.6MB. Free memory was 78.5MB in the beginning and 61.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 2.84ms. Allocated memory is still 142.6MB. Free memory is still 61.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 49, overapproximation of someBinaryFLOATComparisonOperation at line 34, overapproximation of someBinaryFLOATComparisonOperation at line 57, overapproximation of someBinaryFLOATComparisonOperation at line 48, overapproximation of someBinaryDOUBLEComparisonOperation at line 46, overapproximation of someBinaryDOUBLEComparisonOperation at line 31, overapproximation of someBinaryDOUBLEComparisonOperation at line 57, overapproximation of someBinaryDOUBLEComparisonOperation at line 44. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 255.5; [L23] double var_1_2 = 63.805; [L24] double var_1_3 = 64.125; [L25] unsigned short int var_1_4 = 16; [L26] float var_1_5 = 10.5; [L27] unsigned short int var_1_6 = 10; VAL [isInitial=0, var_1_1=511/2, var_1_2=12761/200, var_1_3=513/8, var_1_4=16, var_1_5=21/2, var_1_6=10] [L61] isInitial = 1 [L62] FCALL initially() [L64] FCALL updateLastVariables() [L65] CALL updateVariables() [L43] var_1_2 = __VERIFIER_nondet_double() [L44] 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_1=511/2, var_1_3=513/8, var_1_4=16, var_1_5=21/2, var_1_6=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=511/2, var_1_3=513/8, var_1_4=16, var_1_5=21/2, var_1_6=10] [L44] 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_1=511/2, var_1_3=513/8, var_1_4=16, var_1_5=21/2, var_1_6=10] [L45] var_1_3 = __VERIFIER_nondet_double() [L46] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && 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_1=511/2, var_1_4=16, var_1_5=21/2, var_1_6=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=511/2, var_1_4=16, var_1_5=21/2, var_1_6=10] [L46] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=511/2, var_1_4=16, var_1_5=21/2, var_1_6=10] [L47] var_1_5 = __VERIFIER_nondet_float() [L48] CALL assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=511/2, var_1_4=16, var_1_6=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=511/2, var_1_4=16, var_1_6=10] [L48] RET assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=511/2, var_1_4=16, var_1_6=10] [L49] CALL assume_abort_if_not(var_1_5 != 0.0F) VAL [\old(cond)=1, isInitial=1, var_1_1=511/2, var_1_4=16, var_1_6=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=511/2, var_1_4=16, var_1_6=10] [L49] RET assume_abort_if_not(var_1_5 != 0.0F) VAL [isInitial=1, var_1_1=511/2, var_1_4=16, var_1_6=10] [L50] var_1_6 = __VERIFIER_nondet_ushort() [L51] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=511/2, var_1_4=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=511/2, var_1_4=16] [L51] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_1=511/2, var_1_4=16] [L52] CALL assume_abort_if_not(var_1_6 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_1=511/2, var_1_4=16, var_1_6=65534] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=511/2, var_1_4=16, var_1_6=65534] [L52] RET assume_abort_if_not(var_1_6 <= 65534) VAL [isInitial=1, var_1_1=511/2, var_1_4=16, var_1_6=65534] [L65] RET updateVariables() [L66] CALL step() [L31] COND TRUE ! (var_1_2 < var_1_3) [L32] var_1_1 = 1.4f VAL [isInitial=1, var_1_1=7/5, var_1_4=16, var_1_6=65534] [L34] COND FALSE !(var_1_1 != (var_1_1 / var_1_5)) VAL [isInitial=1, var_1_1=7/5, var_1_4=16, var_1_6=65534] [L66] RET step() [L67] CALL, EXPR property() [L57-L58] return ((! (var_1_2 < var_1_3)) ? (var_1_1 == ((float) 1.4f)) : 1) && ((var_1_1 != (var_1_1 / var_1_5)) ? ((var_1_1 < (var_1_5 * var_1_1)) ? (var_1_4 == ((unsigned short int) var_1_6)) : (var_1_4 == ((unsigned short int) var_1_6))) : 1) ; VAL [\result=0, isInitial=1, var_1_1=7/5, var_1_4=16, var_1_6=65534] [L67] RET, EXPR property() [L67] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_1=7/5, var_1_4=16, var_1_6=65534] [L19] reach_error() VAL [isInitial=1, var_1_1=7/5, var_1_4=16, var_1_6=65534] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 14:19:02,449 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-86.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 248e9a660b5341ec0894e1aed13dbcc752507598fe574e15afae8cc67f5cac10 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 14:19:04,668 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 14:19:04,773 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 14:19:04,780 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 14:19:04,781 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 14:19:04,809 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 14:19:04,811 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 14:19:04,811 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 14:19:04,812 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 14:19:04,812 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 14:19:04,812 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 14:19:04,812 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 14:19:04,813 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 14:19:04,813 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 14:19:04,813 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 14:19:04,813 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 14:19:04,814 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 14:19:04,814 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 14:19:04,814 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 14:19:04,815 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 14:19:04,815 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 14:19:04,815 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 14:19:04,815 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 14:19:04,815 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 14:19:04,815 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 14:19:04,815 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 14:19:04,815 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 14:19:04,815 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 14:19:04,815 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 14:19:04,815 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 14:19:04,815 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 14:19:04,815 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:19:04,815 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:19:04,815 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:19:04,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:19:04,816 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 14:19:04,816 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:19:04,816 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:19:04,817 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:19:04,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:19:04,817 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 14:19:04,817 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 14:19:04,817 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 14:19:04,817 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 14:19:04,817 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 14:19:04,817 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 14:19:04,818 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 14:19:04,818 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 14:19:04,818 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 14:19:04,818 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 14:19:04,818 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 -> 248e9a660b5341ec0894e1aed13dbcc752507598fe574e15afae8cc67f5cac10 [2025-01-09 14:19:05,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 14:19:05,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 14:19:05,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 14:19:05,113 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 14:19:05,113 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 14:19:05,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-86.i [2025-01-09 14:19:06,474 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2d6ed9d45/89322d567b0c462e87e66b426af8005c/FLAGa08630f23 [2025-01-09 14:19:06,682 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 14:19:06,683 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-86.i [2025-01-09 14:19:06,691 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2d6ed9d45/89322d567b0c462e87e66b426af8005c/FLAGa08630f23 [2025-01-09 14:19:06,710 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2d6ed9d45/89322d567b0c462e87e66b426af8005c [2025-01-09 14:19:06,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 14:19:06,716 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 14:19:06,717 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 14:19:06,717 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 14:19:06,722 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 14:19:06,723 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:19:06" (1/1) ... [2025-01-09 14:19:06,723 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52cd04a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:06, skipping insertion in model container [2025-01-09 14:19:06,724 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:19:06" (1/1) ... [2025-01-09 14:19:06,736 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 14:19:06,857 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-86.i[915,928] [2025-01-09 14:19:06,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:19:06,907 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 14:19:06,918 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-86.i[915,928] [2025-01-09 14:19:06,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:19:06,955 INFO L204 MainTranslator]: Completed translation [2025-01-09 14:19:06,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:06 WrapperNode [2025-01-09 14:19:06,958 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 14:19:06,959 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 14:19:06,959 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 14:19:06,960 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 14:19:06,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:06" (1/1) ... [2025-01-09 14:19:06,974 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:06" (1/1) ... [2025-01-09 14:19:06,990 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 61 [2025-01-09 14:19:06,993 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 14:19:06,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 14:19:06,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 14:19:06,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 14:19:07,003 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:06" (1/1) ... [2025-01-09 14:19:07,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:06" (1/1) ... [2025-01-09 14:19:07,006 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:06" (1/1) ... [2025-01-09 14:19:07,024 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 14:19:07,025 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:06" (1/1) ... [2025-01-09 14:19:07,025 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:06" (1/1) ... [2025-01-09 14:19:07,031 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:06" (1/1) ... [2025-01-09 14:19:07,031 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:06" (1/1) ... [2025-01-09 14:19:07,034 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:06" (1/1) ... [2025-01-09 14:19:07,038 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:06" (1/1) ... [2025-01-09 14:19:07,039 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:06" (1/1) ... [2025-01-09 14:19:07,042 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 14:19:07,045 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 14:19:07,045 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 14:19:07,046 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 14:19:07,047 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:06" (1/1) ... [2025-01-09 14:19:07,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:19:07,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 14:19:07,075 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 14:19:07,082 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 14:19:07,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 14:19:07,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 14:19:07,103 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 14:19:07,103 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 14:19:07,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 14:19:07,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 14:19:07,158 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 14:19:07,160 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 14:19:08,845 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-01-09 14:19:08,845 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 14:19:08,852 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 14:19:08,853 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 14:19:08,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:19:08 BoogieIcfgContainer [2025-01-09 14:19:08,853 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 14:19:08,855 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 14:19:08,855 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 14:19:08,859 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 14:19:08,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 02:19:06" (1/3) ... [2025-01-09 14:19:08,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f935b71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:19:08, skipping insertion in model container [2025-01-09 14:19:08,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:06" (2/3) ... [2025-01-09 14:19:08,861 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f935b71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:19:08, skipping insertion in model container [2025-01-09 14:19:08,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:19:08" (3/3) ... [2025-01-09 14:19:08,862 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-86.i [2025-01-09 14:19:08,873 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 14:19:08,874 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-86.i that has 2 procedures, 31 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 14:19:08,914 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 14:19:08,924 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;@4933043e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 14:19:08,924 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 14:19:08,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 23 states have internal predecessors, (29), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-01-09 14:19:08,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-01-09 14:19:08,934 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:19:08,935 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 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 14:19:08,935 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:19:08,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:19:08,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1249005499, now seen corresponding path program 1 times [2025-01-09 14:19:08,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 14:19:08,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [843145302] [2025-01-09 14:19:08,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:19:08,952 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 14:19:08,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 14:19:08,956 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 14:19:08,957 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 14:19:09,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-01-09 14:19:09,152 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-01-09 14:19:09,153 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:19:09,153 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:19:09,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-09 14:19:09,165 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 14:19:18,989 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-01-09 14:19:18,989 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 14:19:18,989 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 14:19:18,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [843145302] [2025-01-09 14:19:18,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [843145302] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 14:19:18,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 14:19:18,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 14:19:18,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937685003] [2025-01-09 14:19:18,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 14:19:18,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 14:19:18,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 14:19:19,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 14:19:19,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-01-09 14:19:19,025 INFO L87 Difference]: Start difference. First operand has 31 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 23 states have internal predecessors, (29), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) 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, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-01-09 14:19:20,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 14:19:21,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 14:19:23,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 14:19:24,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 14:19:39,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 14:19:45,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 14:19:47,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 14:19:49,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 14:19:54,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:19:54,250 INFO L93 Difference]: Finished difference Result 95 states and 145 transitions. [2025-01-09 14:19:54,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 14:19:54,254 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 45 [2025-01-09 14:19:54,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:19:54,260 INFO L225 Difference]: With dead ends: 95 [2025-01-09 14:19:54,260 INFO L226 Difference]: Without dead ends: 67 [2025-01-09 14:19:54,262 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-01-09 14:19:54,264 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 74 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2025-01-09 14:19:54,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 154 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 24.6s Time] [2025-01-09 14:19:54,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2025-01-09 14:19:54,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 64. [2025-01-09 14:19:54,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 46 states have (on average 1.173913043478261) internal successors, (54), 47 states have internal predecessors, (54), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2025-01-09 14:19:54,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 82 transitions. [2025-01-09 14:19:54,301 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 82 transitions. Word has length 45 [2025-01-09 14:19:54,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:19:54,304 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 82 transitions. [2025-01-09 14:19:54,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-01-09 14:19:54,305 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 82 transitions. [2025-01-09 14:19:54,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-01-09 14:19:54,306 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:19:54,306 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 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 14:19:54,314 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 14:19:54,507 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 14:19:54,507 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:19:54,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:19:54,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1306263801, now seen corresponding path program 1 times [2025-01-09 14:19:54,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 14:19:54,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [440552152] [2025-01-09 14:19:54,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:19:54,509 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 14:19:54,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 14:19:54,511 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 14:19:54,512 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 14:19:54,534 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-01-09 14:19:54,694 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-01-09 14:19:54,694 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:19:54,694 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:19:54,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 14:19:54,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 14:20:11,785 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-01-09 14:20:11,785 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 14:20:11,785 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 14:20:11,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [440552152] [2025-01-09 14:20:11,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [440552152] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 14:20:11,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 14:20:11,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 14:20:11,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969086746] [2025-01-09 14:20:11,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 14:20:11,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 14:20:11,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 14:20:11,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 14:20:11,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-09 14:20:11,789 INFO L87 Difference]: Start difference. First operand 64 states and 82 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-01-09 14:20:18,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 14:20:19,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 14:20:21,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 14:20:24,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 14:20:27,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 14:20:35,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 14:20:36,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 14:20:39,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.88s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []