./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-95.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-95.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b884f210784373b42c472a85a9cfd5963822e872cafb602d6bfc9ce286fa4e8a --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 13:24:39,552 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 13:24:39,610 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 13:24:39,614 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 13:24:39,614 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 13:24:39,639 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 13:24:39,640 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 13:24:39,640 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 13:24:39,641 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 13:24:39,641 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 13:24:39,641 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 13:24:39,641 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 13:24:39,642 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 13:24:39,642 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 13:24:39,642 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 13:24:39,642 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 13:24:39,642 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 13:24:39,642 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 13:24:39,642 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 13:24:39,643 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 13:24:39,643 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 13:24:39,643 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 13:24:39,643 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 13:24:39,643 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 13:24:39,643 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 13:24:39,643 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 13:24:39,643 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 13:24:39,643 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 13:24:39,643 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 13:24:39,643 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 13:24:39,644 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 13:24:39,644 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 13:24:39,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 13:24:39,644 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 13:24:39,644 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 13:24:39,644 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 13:24:39,644 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 13:24:39,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 13:24:39,645 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 13:24:39,645 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 13:24:39,645 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 13:24:39,645 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 13:24:39,645 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 13:24:39,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 13:24:39,645 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 13:24:39,645 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 13:24:39,645 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 13:24:39,645 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 13:24:39,646 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 -> b884f210784373b42c472a85a9cfd5963822e872cafb602d6bfc9ce286fa4e8a [2025-01-09 13:24:39,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 13:24:39,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 13:24:39,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 13:24:39,887 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 13:24:39,887 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 13:24:39,888 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-95.i [2025-01-09 13:24:41,056 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/080445c93/9004cf6d62244224a36f588f14cf29d8/FLAG4973f50f3 [2025-01-09 13:24:41,327 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 13:24:41,328 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-95.i [2025-01-09 13:24:41,341 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/080445c93/9004cf6d62244224a36f588f14cf29d8/FLAG4973f50f3 [2025-01-09 13:24:41,623 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/080445c93/9004cf6d62244224a36f588f14cf29d8 [2025-01-09 13:24:41,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 13:24:41,625 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 13:24:41,626 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 13:24:41,626 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 13:24:41,629 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 13:24:41,630 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:24:41" (1/1) ... [2025-01-09 13:24:41,630 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c8f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:41, skipping insertion in model container [2025-01-09 13:24:41,630 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:24:41" (1/1) ... [2025-01-09 13:24:41,640 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 13:24:41,733 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_loopvsstraightlinecode_25-1loop_file-95.i[915,928] [2025-01-09 13:24:41,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 13:24:41,790 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 13:24:41,797 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_loopvsstraightlinecode_25-1loop_file-95.i[915,928] [2025-01-09 13:24:41,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 13:24:41,834 INFO L204 MainTranslator]: Completed translation [2025-01-09 13:24:41,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:41 WrapperNode [2025-01-09 13:24:41,834 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 13:24:41,835 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 13:24:41,837 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 13:24:41,837 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 13:24:41,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:41" (1/1) ... [2025-01-09 13:24:41,848 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:41" (1/1) ... [2025-01-09 13:24:41,870 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 100 [2025-01-09 13:24:41,872 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 13:24:41,872 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 13:24:41,872 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 13:24:41,872 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 13:24:41,881 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:41" (1/1) ... [2025-01-09 13:24:41,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:41" (1/1) ... [2025-01-09 13:24:41,883 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:41" (1/1) ... [2025-01-09 13:24:41,897 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 13:24:41,902 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:41" (1/1) ... [2025-01-09 13:24:41,902 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:41" (1/1) ... [2025-01-09 13:24:41,909 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:41" (1/1) ... [2025-01-09 13:24:41,910 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:41" (1/1) ... [2025-01-09 13:24:41,912 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:41" (1/1) ... [2025-01-09 13:24:41,916 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:41" (1/1) ... [2025-01-09 13:24:41,916 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:41" (1/1) ... [2025-01-09 13:24:41,919 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 13:24:41,921 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 13:24:41,921 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 13:24:41,921 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 13:24:41,922 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:41" (1/1) ... [2025-01-09 13:24:41,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 13:24:41,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 13:24:41,949 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 13:24:41,954 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 13:24:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 13:24:41,970 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 13:24:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 13:24:41,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 13:24:41,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 13:24:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 13:24:42,012 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 13:24:42,013 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 13:24:42,135 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2025-01-09 13:24:42,135 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 13:24:42,141 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 13:24:42,141 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 13:24:42,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:24:42 BoogieIcfgContainer [2025-01-09 13:24:42,141 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 13:24:42,143 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 13:24:42,143 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 13:24:42,146 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 13:24:42,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 01:24:41" (1/3) ... [2025-01-09 13:24:42,147 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20579df4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:24:42, skipping insertion in model container [2025-01-09 13:24:42,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:41" (2/3) ... [2025-01-09 13:24:42,147 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20579df4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:24:42, skipping insertion in model container [2025-01-09 13:24:42,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:24:42" (3/3) ... [2025-01-09 13:24:42,150 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-95.i [2025-01-09 13:24:42,160 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 13:24:42,161 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-95.i that has 2 procedures, 43 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 13:24:42,214 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 13:24:42,222 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;@6304237a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 13:24:42,222 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 13:24:42,225 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 28 states have internal predecessors, (35), 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 13:24:42,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-01-09 13:24:42,230 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 13:24:42,231 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] [2025-01-09 13:24:42,231 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 13:24:42,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 13:24:42,235 INFO L85 PathProgramCache]: Analyzing trace with hash -502708743, now seen corresponding path program 1 times [2025-01-09 13:24:42,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 13:24:42,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819867752] [2025-01-09 13:24:42,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 13:24:42,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 13:24:42,299 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-01-09 13:24:42,338 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-01-09 13:24:42,338 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 13:24:42,338 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 13:24:42,339 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 13:24:42,345 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-01-09 13:24:42,381 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-01-09 13:24:42,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 13:24:42,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 13:24:42,406 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 13:24:42,407 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 13:24:42,408 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 13:24:42,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 13:24:42,412 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-09 13:24:42,445 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 13:24:42,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 01:24:42 BoogieIcfgContainer [2025-01-09 13:24:42,447 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 13:24:42,447 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 13:24:42,448 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 13:24:42,448 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 13:24:42,448 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:24:42" (3/4) ... [2025-01-09 13:24:42,450 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 13:24:42,450 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 13:24:42,451 INFO L158 Benchmark]: Toolchain (without parser) took 825.38ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 55.4MB in the end (delta: 56.3MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-01-09 13:24:42,451 INFO L158 Benchmark]: CDTParser took 0.67ms. Allocated memory is still 201.3MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 13:24:42,451 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.36ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 99.1MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 13:24:42,452 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.46ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 97.3MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 13:24:42,452 INFO L158 Benchmark]: Boogie Preprocessor took 48.48ms. Allocated memory is still 142.6MB. Free memory was 97.3MB in the beginning and 94.9MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 13:24:42,452 INFO L158 Benchmark]: RCFGBuilder took 220.47ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 80.0MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 13:24:42,452 INFO L158 Benchmark]: TraceAbstraction took 304.13ms. Allocated memory is still 142.6MB. Free memory was 79.4MB in the beginning and 56.0MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 13:24:42,453 INFO L158 Benchmark]: Witness Printer took 2.76ms. Allocated memory is still 142.6MB. Free memory was 56.0MB in the beginning and 55.4MB in the end (delta: 583.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 13:24:42,454 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67ms. Allocated memory is still 201.3MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 208.36ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 99.1MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.46ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 97.3MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.48ms. Allocated memory is still 142.6MB. Free memory was 97.3MB in the beginning and 94.9MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 220.47ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 80.0MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 304.13ms. Allocated memory is still 142.6MB. Free memory was 79.4MB in the beginning and 56.0MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 2.76ms. Allocated memory is still 142.6MB. Free memory was 56.0MB in the beginning and 55.4MB in the end (delta: 583.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 69, overapproximation of someBinaryFLOATComparisonOperation at line 67, overapproximation of someBinaryFLOATComparisonOperation at line 71, overapproximation of someBinaryFLOATComparisonOperation at line 85, overapproximation of someUnaryDOUBLEoperation at line 24, overapproximation of someBinaryDOUBLEComparisonOperation at line 65, overapproximation of someBinaryDOUBLEComparisonOperation at line 62, overapproximation of someBinaryDOUBLEComparisonOperation at line 61, overapproximation of someBinaryDOUBLEComparisonOperation at line 85, overapproximation of someBinaryDOUBLEComparisonOperation at line 64, overapproximation of someBinaryDOUBLEComparisonOperation at line 45, overapproximation of someBinaryArithmeticFLOAToperation at line 38. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = -64; [L23] float var_1_3 = 1.8; [L24] double var_1_5 = -0.75; [L25] double var_1_6 = 128.2; [L26] float var_1_8 = 127.4; [L27] float var_1_9 = 99999999.4; [L28] float var_1_10 = 2.8; [L29] double var_1_11 = 7.875; [L30] unsigned char var_1_12 = 128; [L31] unsigned char var_1_13 = 1; [L32] unsigned char var_1_14 = 25; [L33] unsigned char var_1_15 = 64; [L34] signed short int var_1_16 = 16; VAL [isInitial=0, var_1_10=14/5, var_1_11=63/8, var_1_12=128, var_1_13=1, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5, var_1_6=641/5, var_1_8=637/5, var_1_9=499999997/5] [L89] isInitial = 1 [L90] FCALL initially() [L91] int k_loop; [L92] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_10=14/5, var_1_11=63/8, var_1_12=128, var_1_13=1, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5, var_1_6=641/5, var_1_8=637/5, var_1_9=499999997/5] [L92] COND TRUE k_loop < 1 [L93] FCALL updateLastVariables() [L94] CALL updateVariables() [L60] var_1_5 = __VERIFIER_nondet_double() [L61] CALL assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=14/5, var_1_11=63/8, var_1_12=128, var_1_13=1, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5, var_1_6=641/5, var_1_8=637/5, var_1_9=499999997/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=14/5, var_1_11=63/8, var_1_12=128, var_1_13=1, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5, var_1_6=641/5, var_1_8=637/5, var_1_9=499999997/5] [L61] RET assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=14/5, var_1_11=63/8, var_1_12=128, var_1_13=1, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5, var_1_6=641/5, var_1_8=637/5, var_1_9=499999997/5] [L62] CALL assume_abort_if_not(var_1_5 != 0.0F) VAL [\old(cond)=1, isInitial=1, var_1_10=14/5, var_1_11=63/8, var_1_12=128, var_1_13=1, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5, var_1_6=641/5, var_1_8=637/5, var_1_9=499999997/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=14/5, var_1_11=63/8, var_1_12=128, var_1_13=1, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5, var_1_6=641/5, var_1_8=637/5, var_1_9=499999997/5] [L62] RET assume_abort_if_not(var_1_5 != 0.0F) VAL [isInitial=1, var_1_10=14/5, var_1_11=63/8, var_1_12=128, var_1_13=1, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5, var_1_6=641/5, var_1_8=637/5, var_1_9=499999997/5] [L63] var_1_6 = __VERIFIER_nondet_double() [L64] CALL assume_abort_if_not((var_1_6 >= -922337.2036854776000e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=14/5, var_1_11=63/8, var_1_12=128, var_1_13=1, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5, var_1_8=637/5, var_1_9=499999997/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=14/5, var_1_11=63/8, var_1_12=128, var_1_13=1, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5, var_1_8=637/5, var_1_9=499999997/5] [L64] RET assume_abort_if_not((var_1_6 >= -922337.2036854776000e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=14/5, var_1_11=63/8, var_1_12=128, var_1_13=1, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5, var_1_8=637/5, var_1_9=499999997/5] [L65] CALL assume_abort_if_not(var_1_6 != 0.0F) VAL [\old(cond)=1, isInitial=1, var_1_10=14/5, var_1_11=63/8, var_1_12=128, var_1_13=1, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5, var_1_8=637/5, var_1_9=499999997/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=14/5, var_1_11=63/8, var_1_12=128, var_1_13=1, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5, var_1_8=637/5, var_1_9=499999997/5] [L65] RET assume_abort_if_not(var_1_6 != 0.0F) VAL [isInitial=1, var_1_10=14/5, var_1_11=63/8, var_1_12=128, var_1_13=1, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5, var_1_8=637/5, var_1_9=499999997/5] [L66] var_1_8 = __VERIFIER_nondet_float() [L67] CALL assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=14/5, var_1_11=63/8, var_1_12=128, var_1_13=1, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5, var_1_9=499999997/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=14/5, var_1_11=63/8, var_1_12=128, var_1_13=1, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5, var_1_9=499999997/5] [L67] RET assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=14/5, var_1_11=63/8, var_1_12=128, var_1_13=1, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5, var_1_9=499999997/5] [L68] var_1_9 = __VERIFIER_nondet_float() [L69] CALL assume_abort_if_not((var_1_9 >= -230584.3009213691390e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 2305843.009213691390e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=14/5, var_1_11=63/8, var_1_12=128, var_1_13=1, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=14/5, var_1_11=63/8, var_1_12=128, var_1_13=1, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5] [L69] RET assume_abort_if_not((var_1_9 >= -230584.3009213691390e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 2305843.009213691390e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=14/5, var_1_11=63/8, var_1_12=128, var_1_13=1, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5] [L70] var_1_10 = __VERIFIER_nondet_float() [L71] CALL assume_abort_if_not((var_1_10 >= -230584.3009213691390e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 2305843.009213691390e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=63/8, var_1_12=128, var_1_13=1, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=63/8, var_1_12=128, var_1_13=1, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5] [L71] RET assume_abort_if_not((var_1_10 >= -230584.3009213691390e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 2305843.009213691390e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=63/8, var_1_12=128, var_1_13=1, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5] [L72] var_1_13 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=63/8, var_1_12=128, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=63/8, var_1_12=128, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5] [L73] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_11=63/8, var_1_12=128, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5] [L74] CALL assume_abort_if_not(var_1_13 <= 64) VAL [\old(cond)=1, isInitial=1, var_1_11=63/8, var_1_12=128, var_1_13=64, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=63/8, var_1_12=128, var_1_13=64, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5] [L74] RET assume_abort_if_not(var_1_13 <= 64) VAL [isInitial=1, var_1_11=63/8, var_1_12=128, var_1_13=64, var_1_14=25, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5] [L75] var_1_14 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=63/8, var_1_12=128, var_1_13=64, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=63/8, var_1_12=128, var_1_13=64, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5] [L76] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_11=63/8, var_1_12=128, var_1_13=64, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5] [L77] CALL assume_abort_if_not(var_1_14 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_11=63/8, var_1_12=128, var_1_13=64, var_1_14=63, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=63/8, var_1_12=128, var_1_13=64, var_1_14=63, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5] [L77] RET assume_abort_if_not(var_1_14 <= 63) VAL [isInitial=1, var_1_11=63/8, var_1_12=128, var_1_13=64, var_1_14=63, var_1_15=64, var_1_16=16, var_1_1=-64, var_1_3=9/5] [L78] var_1_15 = __VERIFIER_nondet_uchar() [L79] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=63/8, var_1_12=128, var_1_13=64, var_1_14=63, var_1_16=16, var_1_1=-64, var_1_3=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=63/8, var_1_12=128, var_1_13=64, var_1_14=63, var_1_16=16, var_1_1=-64, var_1_3=9/5] [L79] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_11=63/8, var_1_12=128, var_1_13=64, var_1_14=63, var_1_16=16, var_1_1=-64, var_1_3=9/5] [L80] CALL assume_abort_if_not(var_1_15 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_11=63/8, var_1_12=128, var_1_13=64, var_1_14=63, var_1_15=127, var_1_16=16, var_1_1=-64, var_1_3=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=63/8, var_1_12=128, var_1_13=64, var_1_14=63, var_1_15=127, var_1_16=16, var_1_1=-64, var_1_3=9/5] [L80] RET assume_abort_if_not(var_1_15 <= 127) VAL [isInitial=1, var_1_11=63/8, var_1_12=128, var_1_13=64, var_1_14=63, var_1_15=127, var_1_16=16, var_1_1=-64, var_1_3=9/5] [L94] RET updateVariables() [L95] CALL step() [L38] var_1_11 = (((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10))) - var_1_8) [L39] var_1_12 = ((var_1_13 + var_1_14) + var_1_15) [L40] var_1_16 = var_1_13 [L41] var_1_1 = ((((var_1_12) < 0 ) ? -(var_1_12) : (var_1_12))) [L42] unsigned char stepLocal_2 = var_1_12; [L43] signed long int stepLocal_1 = -128; [L44] unsigned char stepLocal_0 = var_1_12; VAL [isInitial=1, stepLocal_0=254, stepLocal_1=-128, stepLocal_2=254, var_1_12=254, var_1_13=64, var_1_14=63, var_1_15=127, var_1_16=64, var_1_1=254, var_1_3=9/5] [L45] COND FALSE !((var_1_11 / ((((var_1_5) < (var_1_6)) ? (var_1_5) : (var_1_6)))) <= var_1_11) VAL [isInitial=1, stepLocal_0=254, stepLocal_1=-128, stepLocal_2=254, var_1_12=254, var_1_13=64, var_1_14=63, var_1_15=127, var_1_16=64, var_1_1=254, var_1_3=9/5] [L95] RET step() [L96] CALL, EXPR property() [L85-L86] return ((((var_1_1 == ((signed long int) ((((var_1_12) < 0 ) ? -(var_1_12) : (var_1_12))))) && (((var_1_11 / ((((var_1_5) < (var_1_6)) ? (var_1_5) : (var_1_6)))) <= var_1_11) ? ((var_1_12 == var_1_16) ? ((var_1_12 >= var_1_16) ? (var_1_3 == ((float) ((9.3f - var_1_8) + (var_1_9 + var_1_10)))) : 1) : ((var_1_12 < -128) ? (var_1_3 == ((float) var_1_8)) : (var_1_3 == ((float) var_1_10)))) : 1)) && (var_1_11 == ((double) (((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10))) - var_1_8)))) && (var_1_12 == ((unsigned char) ((var_1_13 + var_1_14) + var_1_15)))) && (var_1_16 == ((signed short int) var_1_13)) ; VAL [\result=0, isInitial=1, var_1_12=254, var_1_13=64, var_1_14=63, var_1_15=127, var_1_16=64, var_1_1=254, var_1_3=9/5] [L96] RET, EXPR property() [L96] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_12=254, var_1_13=64, var_1_14=63, var_1_15=127, var_1_16=64, var_1_1=254, var_1_3=9/5] [L19] reach_error() VAL [isInitial=1, var_1_12=254, var_1_13=64, var_1_14=63, var_1_15=127, var_1_16=64, var_1_1=254, var_1_3=9/5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-01-09 13:24:42,467 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_loopvsstraightlinecode_25-1loop_file-95.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b884f210784373b42c472a85a9cfd5963822e872cafb602d6bfc9ce286fa4e8a --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 13:24:44,391 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 13:24:44,471 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 13:24:44,476 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 13:24:44,479 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 13:24:44,523 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 13:24:44,524 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 13:24:44,524 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 13:24:44,524 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 13:24:44,525 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 13:24:44,525 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 13:24:44,525 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 13:24:44,525 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 13:24:44,525 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 13:24:44,525 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 13:24:44,525 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 13:24:44,525 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 13:24:44,526 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 13:24:44,526 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 13:24:44,526 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 13:24:44,526 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 13:24:44,526 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 13:24:44,526 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 13:24:44,526 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 13:24:44,526 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 13:24:44,526 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 13:24:44,526 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 13:24:44,526 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 13:24:44,527 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 13:24:44,527 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 13:24:44,527 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 13:24:44,527 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 13:24:44,527 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 13:24:44,527 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 13:24:44,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 13:24:44,527 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 13:24:44,527 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 13:24:44,527 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 13:24:44,527 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 13:24:44,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 13:24:44,528 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 13:24:44,528 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 13:24:44,528 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 13:24:44,528 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 13:24:44,528 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 13:24:44,528 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 13:24:44,528 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 13:24:44,528 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 13:24:44,528 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 13:24:44,528 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 13:24:44,529 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 -> b884f210784373b42c472a85a9cfd5963822e872cafb602d6bfc9ce286fa4e8a [2025-01-09 13:24:44,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 13:24:44,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 13:24:44,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 13:24:44,771 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 13:24:44,772 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 13:24:44,773 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-95.i [2025-01-09 13:24:45,922 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4c2f858e3/bffbe91abef84d7eac94c568d53e2a95/FLAG9018fd705 [2025-01-09 13:24:46,137 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 13:24:46,139 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-95.i [2025-01-09 13:24:46,144 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4c2f858e3/bffbe91abef84d7eac94c568d53e2a95/FLAG9018fd705 [2025-01-09 13:24:46,501 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4c2f858e3/bffbe91abef84d7eac94c568d53e2a95 [2025-01-09 13:24:46,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 13:24:46,503 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 13:24:46,504 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 13:24:46,504 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 13:24:46,507 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 13:24:46,508 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:24:46" (1/1) ... [2025-01-09 13:24:46,508 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e3b79ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:46, skipping insertion in model container [2025-01-09 13:24:46,508 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:24:46" (1/1) ... [2025-01-09 13:24:46,518 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 13:24:46,619 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_loopvsstraightlinecode_25-1loop_file-95.i[915,928] [2025-01-09 13:24:46,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 13:24:46,675 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 13:24:46,683 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_loopvsstraightlinecode_25-1loop_file-95.i[915,928] [2025-01-09 13:24:46,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 13:24:46,705 INFO L204 MainTranslator]: Completed translation [2025-01-09 13:24:46,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:46 WrapperNode [2025-01-09 13:24:46,706 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 13:24:46,707 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 13:24:46,707 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 13:24:46,707 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 13:24:46,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:46" (1/1) ... [2025-01-09 13:24:46,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:46" (1/1) ... [2025-01-09 13:24:46,731 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 100 [2025-01-09 13:24:46,732 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 13:24:46,732 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 13:24:46,732 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 13:24:46,732 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 13:24:46,738 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:46" (1/1) ... [2025-01-09 13:24:46,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:46" (1/1) ... [2025-01-09 13:24:46,741 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:46" (1/1) ... [2025-01-09 13:24:46,751 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 13:24:46,752 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:46" (1/1) ... [2025-01-09 13:24:46,752 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:46" (1/1) ... [2025-01-09 13:24:46,757 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:46" (1/1) ... [2025-01-09 13:24:46,758 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:46" (1/1) ... [2025-01-09 13:24:46,760 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:46" (1/1) ... [2025-01-09 13:24:46,761 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:46" (1/1) ... [2025-01-09 13:24:46,761 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:46" (1/1) ... [2025-01-09 13:24:46,763 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 13:24:46,764 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 13:24:46,764 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 13:24:46,764 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 13:24:46,764 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:46" (1/1) ... [2025-01-09 13:24:46,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 13:24:46,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 13:24:46,794 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 13:24:46,798 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 13:24:46,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 13:24:46,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 13:24:46,816 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 13:24:46,816 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 13:24:46,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 13:24:46,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 13:24:46,862 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 13:24:46,864 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 13:24:58,344 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2025-01-09 13:24:58,344 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 13:24:58,351 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 13:24:58,351 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 13:24:58,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:24:58 BoogieIcfgContainer [2025-01-09 13:24:58,351 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 13:24:58,353 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 13:24:58,353 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 13:24:58,356 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 13:24:58,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 01:24:46" (1/3) ... [2025-01-09 13:24:58,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@624ff696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:24:58, skipping insertion in model container [2025-01-09 13:24:58,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:24:46" (2/3) ... [2025-01-09 13:24:58,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@624ff696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:24:58, skipping insertion in model container [2025-01-09 13:24:58,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:24:58" (3/3) ... [2025-01-09 13:24:58,358 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-95.i [2025-01-09 13:24:58,368 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 13:24:58,369 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-95.i that has 2 procedures, 43 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 13:24:58,407 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 13:24:58,418 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;@c4d046e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 13:24:58,418 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 13:24:58,421 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 28 states have internal predecessors, (35), 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 13:24:58,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-01-09 13:24:58,427 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 13:24:58,428 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] [2025-01-09 13:24:58,428 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 13:24:58,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 13:24:58,433 INFO L85 PathProgramCache]: Analyzing trace with hash -502708743, now seen corresponding path program 1 times [2025-01-09 13:24:58,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 13:24:58,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907870441] [2025-01-09 13:24:58,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 13:24:58,444 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 13:24:58,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 13:24:58,452 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 13:24:58,460 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 13:24:58,519 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-01-09 13:24:59,363 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-01-09 13:24:59,363 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 13:24:59,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 13:24:59,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-01-09 13:24:59,407 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 13:25:48,709 WARN L286 SmtUtils]: Spent 12.49s on a formula simplification that was a NOOP. DAG size: 54 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-01-09 13:25:57,521 WARN L286 SmtUtils]: Spent 8.79s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-01-09 13:26:06,165 WARN L286 SmtUtils]: Spent 8.64s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-01-09 13:26:14,957 WARN L286 SmtUtils]: Spent 8.79s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-01-09 13:26:23,492 WARN L286 SmtUtils]: Spent 8.53s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)