./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-99.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-99.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 573cbc57cae1350f9d2f59bf5c5a92b8e982a601942d1fa1ee0f6a2a387b8d33 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 14:19:39,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 14:19:39,903 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 14:19:39,907 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 14:19:39,907 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 14:19:39,925 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 14:19:39,926 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 14:19:39,926 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 14:19:39,926 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 14:19:39,926 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 14:19:39,927 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 14:19:39,927 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 14:19:39,927 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 14:19:39,927 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 14:19:39,927 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 14:19:39,927 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 14:19:39,927 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 14:19:39,927 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 14:19:39,927 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 14:19:39,928 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 14:19:39,928 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 14:19:39,928 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 14:19:39,928 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 14:19:39,928 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 14:19:39,928 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 14:19:39,928 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 14:19:39,928 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 14:19:39,928 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 14:19:39,928 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 14:19:39,928 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:19:39,928 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:19:39,929 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:19:39,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:19:39,929 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 14:19:39,929 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:19:39,929 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:19:39,929 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:19:39,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:19:39,929 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 14:19:39,929 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 14:19:39,929 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 14:19:39,929 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 14:19:39,929 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 14:19:39,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 14:19:39,930 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 14:19:39,930 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 14:19:39,930 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 14:19:39,930 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 14:19:39,930 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 -> 573cbc57cae1350f9d2f59bf5c5a92b8e982a601942d1fa1ee0f6a2a387b8d33 [2025-01-09 14:19:40,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 14:19:40,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 14:19:40,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 14:19:40,172 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 14:19:40,172 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 14:19:40,173 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-99.i [2025-01-09 14:19:41,239 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ed0f12e8c/a2126ea4d5644eeea1b68dc28029eb96/FLAG36445cf43 [2025-01-09 14:19:41,472 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 14:19:41,473 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-99.i [2025-01-09 14:19:41,479 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ed0f12e8c/a2126ea4d5644eeea1b68dc28029eb96/FLAG36445cf43 [2025-01-09 14:19:41,806 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ed0f12e8c/a2126ea4d5644eeea1b68dc28029eb96 [2025-01-09 14:19:41,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 14:19:41,812 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 14:19:41,813 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 14:19:41,813 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 14:19:41,816 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 14:19:41,816 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:19:41" (1/1) ... [2025-01-09 14:19:41,820 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47254d7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:41, skipping insertion in model container [2025-01-09 14:19:41,820 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:19:41" (1/1) ... [2025-01-09 14:19:41,832 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 14:19:41,931 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-99.i[915,928] [2025-01-09 14:19:41,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:19:41,967 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 14:19:41,974 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-99.i[915,928] [2025-01-09 14:19:41,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:19:41,996 INFO L204 MainTranslator]: Completed translation [2025-01-09 14:19:41,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:41 WrapperNode [2025-01-09 14:19:41,999 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 14:19:42,000 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 14:19:42,000 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 14:19:42,000 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 14:19:42,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:41" (1/1) ... [2025-01-09 14:19:42,009 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:41" (1/1) ... [2025-01-09 14:19:42,025 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 83 [2025-01-09 14:19:42,025 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 14:19:42,026 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 14:19:42,026 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 14:19:42,026 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 14:19:42,032 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:41" (1/1) ... [2025-01-09 14:19:42,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:41" (1/1) ... [2025-01-09 14:19:42,033 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:41" (1/1) ... [2025-01-09 14:19:42,041 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 14:19:42,042 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:41" (1/1) ... [2025-01-09 14:19:42,042 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:41" (1/1) ... [2025-01-09 14:19:42,045 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:41" (1/1) ... [2025-01-09 14:19:42,046 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:41" (1/1) ... [2025-01-09 14:19:42,048 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:41" (1/1) ... [2025-01-09 14:19:42,052 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:41" (1/1) ... [2025-01-09 14:19:42,053 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:41" (1/1) ... [2025-01-09 14:19:42,054 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 14:19:42,055 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 14:19:42,055 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 14:19:42,055 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 14:19:42,056 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:41" (1/1) ... [2025-01-09 14:19:42,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:19:42,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 14:19:42,079 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 14:19:42,084 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 14:19:42,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 14:19:42,096 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 14:19:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 14:19:42,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 14:19:42,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 14:19:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 14:19:42,137 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 14:19:42,138 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 14:19:42,314 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-01-09 14:19:42,314 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 14:19:42,323 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 14:19:42,324 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 14:19:42,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:19:42 BoogieIcfgContainer [2025-01-09 14:19:42,324 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 14:19:42,326 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 14:19:42,326 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 14:19:42,329 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 14:19:42,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 02:19:41" (1/3) ... [2025-01-09 14:19:42,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765ec230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:19:42, skipping insertion in model container [2025-01-09 14:19:42,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:41" (2/3) ... [2025-01-09 14:19:42,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765ec230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:19:42, skipping insertion in model container [2025-01-09 14:19:42,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:19:42" (3/3) ... [2025-01-09 14:19:42,332 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-99.i [2025-01-09 14:19:42,342 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 14:19:42,343 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-99.i that has 2 procedures, 41 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 14:19:42,388 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 14:19:42,398 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;@15351b23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 14:19:42,399 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 14:19:42,403 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-09 14:19:42,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-01-09 14:19:42,410 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:19:42,410 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:19:42,411 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:19:42,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:19:42,415 INFO L85 PathProgramCache]: Analyzing trace with hash 174829726, now seen corresponding path program 1 times [2025-01-09 14:19:42,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:19:42,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969694417] [2025-01-09 14:19:42,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:19:42,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:19:42,492 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-01-09 14:19:42,586 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-01-09 14:19:42,586 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:19:42,586 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:19:43,730 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-01-09 14:19:43,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 14:19:43,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969694417] [2025-01-09 14:19:43,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969694417] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 14:19:43,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 14:19:43,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 14:19:43,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461991362] [2025-01-09 14:19:43,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 14:19:43,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 14:19:43,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 14:19:43,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 14:19:43,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-01-09 14:19:43,753 INFO L87 Difference]: Start difference. First operand has 41 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-01-09 14:19:43,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:19:43,920 INFO L93 Difference]: Finished difference Result 97 states and 149 transitions. [2025-01-09 14:19:43,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 14:19:43,925 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 84 [2025-01-09 14:19:43,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:19:43,929 INFO L225 Difference]: With dead ends: 97 [2025-01-09 14:19:43,929 INFO L226 Difference]: Without dead ends: 59 [2025-01-09 14:19:43,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-01-09 14:19:43,932 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 71 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 14:19:43,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 196 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 14:19:43,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2025-01-09 14:19:43,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 58. [2025-01-09 14:19:43,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 38 states have (on average 1.0526315789473684) internal successors, (40), 39 states have internal predecessors, (40), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2025-01-09 14:19:43,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 72 transitions. [2025-01-09 14:19:43,961 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 72 transitions. Word has length 84 [2025-01-09 14:19:43,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:19:43,961 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 72 transitions. [2025-01-09 14:19:43,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-01-09 14:19:43,962 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 72 transitions. [2025-01-09 14:19:43,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-01-09 14:19:43,963 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:19:43,964 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:19:43,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 14:19:43,964 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:19:43,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:19:43,964 INFO L85 PathProgramCache]: Analyzing trace with hash 232088028, now seen corresponding path program 1 times [2025-01-09 14:19:43,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:19:43,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141310985] [2025-01-09 14:19:43,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:19:43,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:19:43,973 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-01-09 14:19:43,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-01-09 14:19:43,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:19:43,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 14:19:43,990 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 14:19:43,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-01-09 14:19:44,006 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-01-09 14:19:44,006 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:19:44,007 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 14:19:44,034 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 14:19:44,034 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 14:19:44,035 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 14:19:44,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 14:19:44,042 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-09 14:19:44,077 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 14:19:44,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 02:19:44 BoogieIcfgContainer [2025-01-09 14:19:44,079 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 14:19:44,080 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 14:19:44,080 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 14:19:44,080 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 14:19:44,085 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:19:42" (3/4) ... [2025-01-09 14:19:44,087 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 14:19:44,087 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 14:19:44,088 INFO L158 Benchmark]: Toolchain (without parser) took 2275.70ms. Allocated memory is still 142.6MB. Free memory was 114.3MB in the beginning and 43.1MB in the end (delta: 71.2MB). Peak memory consumption was 70.8MB. Max. memory is 16.1GB. [2025-01-09 14:19:44,088 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 124.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 14:19:44,088 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.78ms. Allocated memory is still 142.6MB. Free memory was 114.3MB in the beginning and 102.0MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 14:19:44,088 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.34ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 100.7MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 14:19:44,089 INFO L158 Benchmark]: Boogie Preprocessor took 28.38ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 98.3MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 14:19:44,089 INFO L158 Benchmark]: RCFGBuilder took 269.71ms. Allocated memory is still 142.6MB. Free memory was 98.3MB in the beginning and 83.9MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 14:19:44,089 INFO L158 Benchmark]: TraceAbstraction took 1753.30ms. Allocated memory is still 142.6MB. Free memory was 83.9MB in the beginning and 43.1MB in the end (delta: 40.8MB). Peak memory consumption was 37.2MB. Max. memory is 16.1GB. [2025-01-09 14:19:44,089 INFO L158 Benchmark]: Witness Printer took 7.32ms. Allocated memory is still 142.6MB. Free memory was 43.1MB in the beginning and 43.1MB in the end (delta: 41.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 14:19:44,090 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 124.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 186.78ms. Allocated memory is still 142.6MB. Free memory was 114.3MB in the beginning and 102.0MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.34ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 100.7MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.38ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 98.3MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 269.71ms. Allocated memory is still 142.6MB. Free memory was 98.3MB in the beginning and 83.9MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1753.30ms. Allocated memory is still 142.6MB. Free memory was 83.9MB in the beginning and 43.1MB in the end (delta: 40.8MB). Peak memory consumption was 37.2MB. Max. memory is 16.1GB. * Witness Printer took 7.32ms. Allocated memory is still 142.6MB. Free memory was 43.1MB in the beginning and 43.1MB in the end (delta: 41.6kB). 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 44, overapproximation of someBinaryDOUBLEComparisonOperation at line 37, overapproximation of someBinaryDOUBLEComparisonOperation at line 46, overapproximation of someBinaryDOUBLEComparisonOperation at line 68, overapproximation of someBinaryDOUBLEComparisonOperation at line 48. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 1; [L23] double var_1_2 = 3.25; [L24] double var_1_3 = 32.75; [L25] double var_1_4 = 128.75; [L26] unsigned char var_1_6 = 32; [L27] unsigned char var_1_7 = 32; [L28] unsigned char var_1_8 = 16; [L29] unsigned char var_1_9 = 0; [L30] unsigned char var_1_10 = 1; [L31] unsigned char var_1_11 = 1; [L32] signed short int var_1_12 = 10; VAL [isInitial=0, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_2=13/4, var_1_3=131/4, var_1_4=515/4, var_1_6=32, var_1_7=32, var_1_8=16, var_1_9=0] [L72] isInitial = 1 [L73] FCALL initially() [L75] FCALL updateLastVariables() [L76] 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_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_3=131/4, var_1_4=515/4, var_1_6=32, var_1_7=32, var_1_8=16, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_3=131/4, var_1_4=515/4, var_1_6=32, var_1_7=32, var_1_8=16, var_1_9=0] [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_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_3=131/4, var_1_4=515/4, var_1_6=32, var_1_7=32, var_1_8=16, var_1_9=0] [L45] var_1_3 = __VERIFIER_nondet_double() [L46] 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=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_4=515/4, var_1_6=32, var_1_7=32, var_1_8=16, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_4=515/4, var_1_6=32, var_1_7=32, var_1_8=16, var_1_9=0] [L46] 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=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_4=515/4, var_1_6=32, var_1_7=32, var_1_8=16, var_1_9=0] [L47] var_1_4 = __VERIFIER_nondet_double() [L48] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=32, var_1_7=32, var_1_8=16, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=32, var_1_7=32, var_1_8=16, var_1_9=0] [L48] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=32, var_1_7=32, var_1_8=16, var_1_9=0] [L49] var_1_6 = __VERIFIER_nondet_uchar() [L50] CALL assume_abort_if_not(var_1_6 >= 31) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=16, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=16, var_1_9=0] [L50] RET assume_abort_if_not(var_1_6 >= 31) VAL [isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=16, var_1_9=0] [L51] CALL assume_abort_if_not(var_1_6 <= 64) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=16, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=16, var_1_9=0] [L51] RET assume_abort_if_not(var_1_6 <= 64) VAL [isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=16, var_1_9=0] [L52] var_1_7 = __VERIFIER_nondet_uchar() [L53] CALL assume_abort_if_not(var_1_7 >= 32) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=16, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=16, var_1_9=0] [L53] RET assume_abort_if_not(var_1_7 >= 32) VAL [isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=16, var_1_9=0] [L54] CALL assume_abort_if_not(var_1_7 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=16, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=16, var_1_9=0] [L54] RET assume_abort_if_not(var_1_7 <= 63) VAL [isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=16, var_1_9=0] [L55] var_1_8 = __VERIFIER_nondet_uchar() [L56] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_9=0] [L56] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_9=0] [L57] CALL assume_abort_if_not(var_1_8 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=-193, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=-193, var_1_9=0] [L57] RET assume_abort_if_not(var_1_8 <= 63) VAL [isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=-193, var_1_9=0] [L58] var_1_9 = __VERIFIER_nondet_uchar() [L59] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=-193] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=-193] [L59] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=-193] [L60] CALL assume_abort_if_not(var_1_9 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=-193, var_1_9=-256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=-193, var_1_9=-256] [L60] RET assume_abort_if_not(var_1_9 <= 127) VAL [isInitial=1, var_1_10=1, var_1_11=1, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=-193, var_1_9=-256] [L61] var_1_11 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_11 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=-255, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=-193, var_1_9=-256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=-255, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=-193, var_1_9=-256] [L62] RET assume_abort_if_not(var_1_11 >= 1) VAL [isInitial=1, var_1_10=1, var_1_11=-255, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=-193, var_1_9=-256] [L63] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=-255, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=-193, var_1_9=-256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=-255, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=-193, var_1_9=-256] [L63] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, var_1_10=1, var_1_11=-255, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=-193, var_1_9=-256] [L76] RET updateVariables() [L77] CALL step() [L36] var_1_10 = var_1_11 VAL [isInitial=1, var_1_10=-255, var_1_11=-255, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=-193, var_1_9=-256] [L37] COND FALSE !((var_1_2 <= (var_1_3 - var_1_4)) && var_1_10) VAL [isInitial=1, var_1_10=-255, var_1_11=-255, var_1_12=10, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=-193, var_1_9=-256] [L40] var_1_12 = var_1_1 VAL [isInitial=1, var_1_10=-255, var_1_11=-255, var_1_12=1, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=-193, var_1_9=-256] [L77] RET step() [L78] CALL, EXPR property() [L68-L69] return ((((var_1_2 <= (var_1_3 - var_1_4)) && var_1_10) ? (var_1_1 == ((unsigned char) (((var_1_6 + var_1_7) - var_1_8) + var_1_9))) : 1) && (var_1_10 == ((unsigned char) var_1_11))) && (var_1_12 == ((signed short int) var_1_1)) ; VAL [\result=0, isInitial=1, var_1_10=-255, var_1_11=-255, var_1_12=1, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=-193, var_1_9=-256] [L78] RET, EXPR property() [L78] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=-255, var_1_11=-255, var_1_12=1, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=-193, var_1_9=-256] [L19] reach_error() VAL [isInitial=1, var_1_10=-255, var_1_11=-255, var_1_12=1, var_1_1=1, var_1_6=49472, var_1_7=32, var_1_8=-193, var_1_9=-256] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 71 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 196 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 137 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 59 IncrementalHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 59 mSDtfsCounter, 59 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=1, InterpolantAutomatonStates: 7, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 168 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 180 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 312/312 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 14:19:44,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-99.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 573cbc57cae1350f9d2f59bf5c5a92b8e982a601942d1fa1ee0f6a2a387b8d33 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 14:19:45,967 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 14:19:46,062 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 14:19:46,068 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 14:19:46,068 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 14:19:46,090 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 14:19:46,093 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 14:19:46,093 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 14:19:46,093 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 14:19:46,093 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 14:19:46,093 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 14:19:46,094 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 14:19:46,094 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 14:19:46,094 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 14:19:46,094 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 14:19:46,094 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 14:19:46,094 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 14:19:46,094 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 14:19:46,094 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 14:19:46,095 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 14:19:46,095 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 14:19:46,095 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 14:19:46,095 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 14:19:46,095 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 14:19:46,095 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 14:19:46,095 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 14:19:46,095 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 14:19:46,095 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 14:19:46,095 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 14:19:46,095 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 14:19:46,095 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 14:19:46,095 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:19:46,095 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:19:46,095 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:19:46,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:19:46,095 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 14:19:46,095 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:19:46,095 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:19:46,095 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:19:46,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:19:46,096 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 14:19:46,096 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 14:19:46,096 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 14:19:46,096 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 14:19:46,096 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 14:19:46,096 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 14:19:46,096 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 14:19:46,096 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 14:19:46,096 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 14:19:46,096 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 14:19:46,096 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 -> 573cbc57cae1350f9d2f59bf5c5a92b8e982a601942d1fa1ee0f6a2a387b8d33 [2025-01-09 14:19:46,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 14:19:46,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 14:19:46,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 14:19:46,377 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 14:19:46,377 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 14:19:46,378 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-99.i [2025-01-09 14:19:47,609 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a9aeb2978/22348ed649b44d90ba9167f7c9cf7609/FLAG1d9a2210c [2025-01-09 14:19:47,783 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 14:19:47,784 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-99.i [2025-01-09 14:19:47,789 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a9aeb2978/22348ed649b44d90ba9167f7c9cf7609/FLAG1d9a2210c [2025-01-09 14:19:48,163 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a9aeb2978/22348ed649b44d90ba9167f7c9cf7609 [2025-01-09 14:19:48,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 14:19:48,166 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 14:19:48,167 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 14:19:48,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 14:19:48,170 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 14:19:48,170 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:19:48" (1/1) ... [2025-01-09 14:19:48,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b82d30d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:48, skipping insertion in model container [2025-01-09 14:19:48,171 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:19:48" (1/1) ... [2025-01-09 14:19:48,181 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 14:19:48,268 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-99.i[915,928] [2025-01-09 14:19:48,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:19:48,295 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 14:19:48,302 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-99.i[915,928] [2025-01-09 14:19:48,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:19:48,324 INFO L204 MainTranslator]: Completed translation [2025-01-09 14:19:48,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:48 WrapperNode [2025-01-09 14:19:48,325 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 14:19:48,325 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 14:19:48,326 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 14:19:48,326 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 14:19:48,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:48" (1/1) ... [2025-01-09 14:19:48,336 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:48" (1/1) ... [2025-01-09 14:19:48,347 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 83 [2025-01-09 14:19:48,348 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 14:19:48,348 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 14:19:48,348 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 14:19:48,348 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 14:19:48,354 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:48" (1/1) ... [2025-01-09 14:19:48,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:48" (1/1) ... [2025-01-09 14:19:48,356 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:48" (1/1) ... [2025-01-09 14:19:48,363 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 14:19:48,363 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:48" (1/1) ... [2025-01-09 14:19:48,363 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:48" (1/1) ... [2025-01-09 14:19:48,368 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:48" (1/1) ... [2025-01-09 14:19:48,370 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:48" (1/1) ... [2025-01-09 14:19:48,372 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:48" (1/1) ... [2025-01-09 14:19:48,373 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:48" (1/1) ... [2025-01-09 14:19:48,373 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:48" (1/1) ... [2025-01-09 14:19:48,374 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 14:19:48,375 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 14:19:48,375 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 14:19:48,375 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 14:19:48,376 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:48" (1/1) ... [2025-01-09 14:19:48,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:19:48,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 14:19:48,402 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 14:19:48,404 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 14:19:48,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 14:19:48,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 14:19:48,419 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 14:19:48,419 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 14:19:48,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 14:19:48,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 14:19:48,467 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 14:19:48,468 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 14:19:48,984 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-01-09 14:19:48,985 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 14:19:49,003 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 14:19:49,003 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 14:19:49,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:19:49 BoogieIcfgContainer [2025-01-09 14:19:49,004 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 14:19:49,006 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 14:19:49,007 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 14:19:49,015 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 14:19:49,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 02:19:48" (1/3) ... [2025-01-09 14:19:49,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41551143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:19:49, skipping insertion in model container [2025-01-09 14:19:49,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:19:48" (2/3) ... [2025-01-09 14:19:49,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41551143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:19:49, skipping insertion in model container [2025-01-09 14:19:49,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:19:49" (3/3) ... [2025-01-09 14:19:49,022 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-99.i [2025-01-09 14:19:49,040 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 14:19:49,041 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-99.i that has 2 procedures, 41 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 14:19:49,076 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 14:19:49,084 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;@c8a74da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 14:19:49,084 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 14:19:49,087 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-09 14:19:49,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-01-09 14:19:49,092 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:19:49,093 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:19:49,093 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:19:49,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:19:49,097 INFO L85 PathProgramCache]: Analyzing trace with hash 174829726, now seen corresponding path program 1 times [2025-01-09 14:19:49,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 14:19:49,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1352937695] [2025-01-09 14:19:49,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:19:49,104 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 14:19:49,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 14:19:49,107 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 14:19:49,109 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 14:19:49,165 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-01-09 14:19:49,290 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-01-09 14:19:49,290 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:19:49,290 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:19:49,297 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-01-09 14:19:49,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 14:19:50,418 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 227 proven. 51 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2025-01-09 14:19:50,419 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 14:19:51,003 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-01-09 14:19:51,003 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 14:19:51,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1352937695] [2025-01-09 14:19:51,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1352937695] provided 1 perfect and 1 imperfect interpolant sequences [2025-01-09 14:19:51,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 14:19:51,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [22] total 27 [2025-01-09 14:19:51,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205802164] [2025-01-09 14:19:51,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 14:19:51,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 14:19:51,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 14:19:51,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 14:19:51,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=572, Unknown=0, NotChecked=0, Total=702 [2025-01-09 14:19:51,035 INFO L87 Difference]: Start difference. First operand has 41 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-01-09 14:19:51,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:19:51,941 INFO L93 Difference]: Finished difference Result 97 states and 149 transitions. [2025-01-09 14:19:51,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 14:19:51,944 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 84 [2025-01-09 14:19:51,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:19:51,948 INFO L225 Difference]: With dead ends: 97 [2025-01-09 14:19:51,948 INFO L226 Difference]: Without dead ends: 59 [2025-01-09 14:19:51,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=670, Unknown=0, NotChecked=0, Total=812 [2025-01-09 14:19:51,952 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 71 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-01-09 14:19:51,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 196 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-01-09 14:19:51,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2025-01-09 14:19:51,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 58. [2025-01-09 14:19:51,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 38 states have (on average 1.0526315789473684) internal successors, (40), 39 states have internal predecessors, (40), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2025-01-09 14:19:51,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 72 transitions. [2025-01-09 14:19:51,998 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 72 transitions. Word has length 84 [2025-01-09 14:19:51,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:19:51,999 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 72 transitions. [2025-01-09 14:19:51,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-01-09 14:19:51,999 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 72 transitions. [2025-01-09 14:19:52,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-01-09 14:19:52,001 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:19:52,001 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:19:52,009 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 14:19:52,205 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 14:19:52,205 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:19:52,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:19:52,206 INFO L85 PathProgramCache]: Analyzing trace with hash 232088028, now seen corresponding path program 1 times [2025-01-09 14:19:52,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 14:19:52,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1878357764] [2025-01-09 14:19:52,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:19:52,210 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 14:19:52,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 14:19:52,212 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 14:19:52,213 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 14:19:52,252 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-01-09 14:19:52,346 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-01-09 14:19:52,346 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:19:52,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:19:52,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-01-09 14:19:52,357 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 14:19:58,186 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2025-01-09 14:19:58,186 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 14:19:58,186 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 14:19:58,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1878357764] [2025-01-09 14:19:58,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1878357764] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 14:19:58,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 14:19:58,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-01-09 14:19:58,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899820140] [2025-01-09 14:19:58,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 14:19:58,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 14:19:58,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 14:19:58,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 14:19:58,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2025-01-09 14:19:58,191 INFO L87 Difference]: Start difference. First operand 58 states and 72 transitions. Second operand has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 11 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 14:20:10,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:20:10,712 INFO L93 Difference]: Finished difference Result 66 states and 79 transitions. [2025-01-09 14:20:10,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-09 14:20:10,719 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 11 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 84 [2025-01-09 14:20:10,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:20:10,720 INFO L225 Difference]: With dead ends: 66 [2025-01-09 14:20:10,720 INFO L226 Difference]: Without dead ends: 0 [2025-01-09 14:20:10,721 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2025-01-09 14:20:10,722 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 75 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2025-01-09 14:20:10,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 166 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2025-01-09 14:20:10,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-09 14:20:10,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-09 14:20:10,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 14:20:10,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-09 14:20:10,724 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 84 [2025-01-09 14:20:10,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:20:10,724 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-09 14:20:10,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 11 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 14:20:10,725 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-09 14:20:10,725 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-09 14:20:10,726 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 14:20:10,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2025-01-09 14:20:10,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 14:20:10,931 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-09 14:20:10,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-01-09 14:20:13,887 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 14:20:13,894 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-01-09 14:20:13,896 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2025-01-09 14:20:13,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 02:20:13 BoogieIcfgContainer [2025-01-09 14:20:13,898 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 14:20:13,898 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 14:20:13,899 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 14:20:13,901 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 14:20:13,902 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:19:49" (3/4) ... [2025-01-09 14:20:13,903 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 14:20:13,907 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-01-09 14:20:13,909 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2025-01-09 14:20:13,910 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-01-09 14:20:13,911 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-09 14:20:13,911 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 14:20:13,972 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 14:20:13,973 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 14:20:13,973 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 14:20:13,973 INFO L158 Benchmark]: Toolchain (without parser) took 25807.69ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 60.7MB in the end (delta: 32.1MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2025-01-09 14:20:13,974 INFO L158 Benchmark]: CDTParser took 0.78ms. Allocated memory is still 83.9MB. Free memory is still 62.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 14:20:13,975 INFO L158 Benchmark]: CACSL2BoogieTranslator took 158.27ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 80.1MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 14:20:13,975 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.55ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.8MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 14:20:13,976 INFO L158 Benchmark]: Boogie Preprocessor took 26.23ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 76.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 14:20:13,976 INFO L158 Benchmark]: RCFGBuilder took 629.11ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 64.5MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 14:20:13,976 INFO L158 Benchmark]: TraceAbstraction took 24892.06ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 66.6MB in the end (delta: -2.8MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2025-01-09 14:20:13,976 INFO L158 Benchmark]: Witness Printer took 74.41ms. Allocated memory is still 117.4MB. Free memory was 66.6MB in the beginning and 60.7MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 14:20:13,977 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78ms. Allocated memory is still 83.9MB. Free memory is still 62.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 158.27ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 80.1MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.55ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.8MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.23ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 76.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 629.11ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 64.5MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 24892.06ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 66.6MB in the end (delta: -2.8MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. * Witness Printer took 74.41ms. Allocated memory is still 117.4MB. Free memory was 66.6MB in the beginning and 60.7MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 21.9s, OverallIterations: 2, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 13.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 157 SdHoareTripleChecker+Valid, 10.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 146 mSDsluCounter, 362 SdHoareTripleChecker+Invalid, 9.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 268 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 283 IncrementalHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 94 mSDtfsCounter, 283 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 256 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 8.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=1, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 7.6s InterpolantComputationTime, 168 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 249 ConstructedInterpolants, 0 QuantifiedInterpolants, 1177 SizeOfPredicates, 28 NumberOfNonLiveVariables, 274 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 885/936 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: ((((var_1_11 >= 1) && (var_1_11 <= 1)) && (var_1_11 == var_1_10)) || ((((var_1_11 >= 1) && (var_1_1 == var_1_12)) && (var_1_11 <= 1)) && (var_1_11 == var_1_10))) RESULT: Ultimate proved your program to be correct! [2025-01-09 14:20:14,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE