./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/gcd_2+newton_1_6.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/combinations/gcd_2+newton_1_6.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 bad8530dca87d639d49a604251c8b439dfbb73c75b0c2bc923bd7483617ddb0d --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 05:31:43,761 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 05:31:43,820 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 05:31:43,824 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 05:31:43,825 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 05:31:43,846 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 05:31:43,846 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 05:31:43,846 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 05:31:43,847 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 05:31:43,847 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 05:31:43,848 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 05:31:43,848 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 05:31:43,848 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 05:31:43,848 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 05:31:43,848 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 05:31:43,849 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 05:31:43,849 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 05:31:43,849 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 05:31:43,849 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 05:31:43,849 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 05:31:43,849 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 05:31:43,849 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 05:31:43,849 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 05:31:43,849 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 05:31:43,849 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 05:31:43,850 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 05:31:43,850 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 05:31:43,850 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 05:31:43,850 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 05:31:43,850 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:31:43,851 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:31:43,851 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:31:43,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:31:43,851 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 05:31:43,851 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:31:43,851 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:31:43,851 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:31:43,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:31:43,851 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 05:31:43,851 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 05:31:43,851 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 05:31:43,851 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 05:31:43,851 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 05:31:43,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 05:31:43,851 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 05:31:43,851 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 05:31:43,851 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 05:31:43,851 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 05:31:43,851 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 -> bad8530dca87d639d49a604251c8b439dfbb73c75b0c2bc923bd7483617ddb0d [2025-01-09 05:31:44,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 05:31:44,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 05:31:44,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 05:31:44,072 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 05:31:44,073 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 05:31:44,073 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_2+newton_1_6.i [2025-01-09 05:31:45,267 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/85e4a3fee/567ebae375c24aca8f3c168b9b5d1a10/FLAG4bc7c36a3 [2025-01-09 05:31:45,474 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 05:31:45,476 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_2+newton_1_6.i [2025-01-09 05:31:45,487 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/85e4a3fee/567ebae375c24aca8f3c168b9b5d1a10/FLAG4bc7c36a3 [2025-01-09 05:31:45,830 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/85e4a3fee/567ebae375c24aca8f3c168b9b5d1a10 [2025-01-09 05:31:45,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 05:31:45,833 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 05:31:45,834 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 05:31:45,834 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 05:31:45,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 05:31:45,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:31:45" (1/1) ... [2025-01-09 05:31:45,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42f6dc3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:45, skipping insertion in model container [2025-01-09 05:31:45,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:31:45" (1/1) ... [2025-01-09 05:31:45,847 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 05:31:45,942 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/combinations/gcd_2+newton_1_6.i[1226,1239] [2025-01-09 05:31:45,968 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/combinations/gcd_2+newton_1_6.i[2820,2833] [2025-01-09 05:31:45,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:31:45,976 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 05:31:45,985 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/combinations/gcd_2+newton_1_6.i[1226,1239] [2025-01-09 05:31:45,998 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/combinations/gcd_2+newton_1_6.i[2820,2833] [2025-01-09 05:31:45,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:31:46,011 INFO L204 MainTranslator]: Completed translation [2025-01-09 05:31:46,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:46 WrapperNode [2025-01-09 05:31:46,011 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 05:31:46,012 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 05:31:46,012 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 05:31:46,012 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 05:31:46,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:46" (1/1) ... [2025-01-09 05:31:46,023 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:46" (1/1) ... [2025-01-09 05:31:46,040 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 84 [2025-01-09 05:31:46,040 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 05:31:46,041 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 05:31:46,041 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 05:31:46,041 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 05:31:46,046 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:46" (1/1) ... [2025-01-09 05:31:46,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:46" (1/1) ... [2025-01-09 05:31:46,048 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:46" (1/1) ... [2025-01-09 05:31:46,059 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2025-01-09 05:31:46,059 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:46" (1/1) ... [2025-01-09 05:31:46,060 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:46" (1/1) ... [2025-01-09 05:31:46,065 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:46" (1/1) ... [2025-01-09 05:31:46,066 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:46" (1/1) ... [2025-01-09 05:31:46,067 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:46" (1/1) ... [2025-01-09 05:31:46,068 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:46" (1/1) ... [2025-01-09 05:31:46,068 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:46" (1/1) ... [2025-01-09 05:31:46,074 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 05:31:46,074 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 05:31:46,078 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 05:31:46,079 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 05:31:46,079 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:46" (1/1) ... [2025-01-09 05:31:46,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:31:46,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 05:31:46,106 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 05:31:46,110 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 05:31:46,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 05:31:46,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 05:31:46,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 05:31:46,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 05:31:46,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 05:31:46,176 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 05:31:46,177 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 05:31:46,282 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2025-01-09 05:31:46,282 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 05:31:46,288 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 05:31:46,288 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 05:31:46,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:31:46 BoogieIcfgContainer [2025-01-09 05:31:46,289 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 05:31:46,291 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 05:31:46,291 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 05:31:46,295 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 05:31:46,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:31:45" (1/3) ... [2025-01-09 05:31:46,296 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186b66ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:31:46, skipping insertion in model container [2025-01-09 05:31:46,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:46" (2/3) ... [2025-01-09 05:31:46,296 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186b66ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:31:46, skipping insertion in model container [2025-01-09 05:31:46,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:31:46" (3/3) ... [2025-01-09 05:31:46,297 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_1_6.i [2025-01-09 05:31:46,307 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 05:31:46,308 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_2+newton_1_6.i that has 1 procedures, 26 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-01-09 05:31:46,350 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 05:31:46,360 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;@1d778f60, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 05:31:46,360 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 05:31:46,363 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 23 states have (on average 1.434782608695652) internal successors, (33), 25 states have internal predecessors, (33), 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 05:31:46,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-09 05:31:46,367 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:31:46,367 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:31:46,368 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:31:46,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:31:46,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1676893550, now seen corresponding path program 1 times [2025-01-09 05:31:46,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:31:46,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076395200] [2025-01-09 05:31:46,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:31:46,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:31:46,435 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 05:31:46,445 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 05:31:46,445 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:31:46,445 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:31:46,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:31:46,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:31:46,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076395200] [2025-01-09 05:31:46,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076395200] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:31:46,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:31:46,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 05:31:46,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540848348] [2025-01-09 05:31:46,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:31:46,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 05:31:46,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:31:46,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 05:31:46,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 05:31:46,495 INFO L87 Difference]: Start difference. First operand has 26 states, 23 states have (on average 1.434782608695652) internal successors, (33), 25 states have internal predecessors, (33), 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 05:31:46,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:31:46,503 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2025-01-09 05:31:46,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 05:31:46,504 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) Word has length 9 [2025-01-09 05:31:46,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:31:46,510 INFO L225 Difference]: With dead ends: 40 [2025-01-09 05:31:46,510 INFO L226 Difference]: Without dead ends: 18 [2025-01-09 05:31:46,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 05:31:46,515 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 05:31:46,516 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:31:46,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2025-01-09 05:31:46,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2025-01-09 05:31:46,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 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 05:31:46,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2025-01-09 05:31:46,536 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 9 [2025-01-09 05:31:46,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:31:46,536 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2025-01-09 05:31:46,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 05:31:46,537 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2025-01-09 05:31:46,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-09 05:31:46,537 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:31:46,537 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:31:46,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 05:31:46,538 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:31:46,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:31:46,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1619635248, now seen corresponding path program 1 times [2025-01-09 05:31:46,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:31:46,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240165637] [2025-01-09 05:31:46,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:31:46,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:31:46,544 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 05:31:46,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 05:31:46,556 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:31:46,556 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 05:31:46,556 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 05:31:46,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 05:31:46,564 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 05:31:46,564 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:31:46,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 05:31:46,574 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 05:31:46,575 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 05:31:46,577 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-01-09 05:31:46,578 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-01-09 05:31:46,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 05:31:46,582 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-09 05:31:46,592 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 05:31:46,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 05:31:46 BoogieIcfgContainer [2025-01-09 05:31:46,596 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 05:31:46,597 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 05:31:46,597 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 05:31:46,597 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 05:31:46,598 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:31:46" (3/4) ... [2025-01-09 05:31:46,599 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 05:31:46,600 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 05:31:46,601 INFO L158 Benchmark]: Toolchain (without parser) took 767.87ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 64.3MB in the end (delta: 48.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-01-09 05:31:46,601 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 226.5MB. Free memory is still 148.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:31:46,601 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.10ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 100.9MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:31:46,601 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.13ms. Allocated memory is still 142.6MB. Free memory was 100.9MB in the beginning and 99.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:31:46,602 INFO L158 Benchmark]: Boogie Preprocessor took 33.24ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 97.3MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:31:46,603 INFO L158 Benchmark]: RCFGBuilder took 214.38ms. Allocated memory is still 142.6MB. Free memory was 97.3MB in the beginning and 85.2MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:31:46,603 INFO L158 Benchmark]: TraceAbstraction took 305.04ms. Allocated memory is still 142.6MB. Free memory was 84.7MB in the beginning and 64.9MB in the end (delta: 19.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 05:31:46,603 INFO L158 Benchmark]: Witness Printer took 3.22ms. Allocated memory is still 142.6MB. Free memory was 64.9MB in the beginning and 64.3MB in the end (delta: 533.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:31:46,604 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 226.5MB. Free memory is still 148.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 178.10ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 100.9MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.13ms. Allocated memory is still 142.6MB. Free memory was 100.9MB in the beginning and 99.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.24ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 97.3MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 214.38ms. Allocated memory is still 142.6MB. Free memory was 97.3MB in the beginning and 85.2MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 305.04ms. Allocated memory is still 142.6MB. Free memory was 84.7MB in the beginning and 64.9MB in the end (delta: 19.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.22ms. Allocated memory is still 142.6MB. Free memory was 64.9MB in the beginning and 64.3MB in the end (delta: 533.6kB). 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: 102]: 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 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 93, overapproximation of someBinaryArithmeticFLOAToperation at line 80, overapproximation of someBinaryArithmeticFLOAToperation at line 85. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L75] COND FALSE !(!cond) [L91] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) [L102] reach_error() - UnprovableResult [Line: 27]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 30 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 05:31:46,621 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/gcd_2+newton_1_6.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 bad8530dca87d639d49a604251c8b439dfbb73c75b0c2bc923bd7483617ddb0d --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 05:31:48,410 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 05:31:48,479 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 05:31:48,485 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 05:31:48,488 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 05:31:48,512 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 05:31:48,513 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 05:31:48,514 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 05:31:48,514 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 05:31:48,514 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 05:31:48,514 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 05:31:48,514 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 05:31:48,514 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 05:31:48,514 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 05:31:48,515 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 05:31:48,515 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 05:31:48,515 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 05:31:48,515 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 05:31:48,515 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 05:31:48,515 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 05:31:48,515 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 05:31:48,515 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 05:31:48,515 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 05:31:48,515 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 05:31:48,516 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 05:31:48,516 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 05:31:48,516 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 05:31:48,516 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 05:31:48,516 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 05:31:48,516 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 05:31:48,516 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 05:31:48,516 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:31:48,516 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:31:48,516 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:31:48,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:31:48,516 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 05:31:48,517 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:31:48,517 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:31:48,517 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:31:48,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:31:48,517 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 05:31:48,517 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 05:31:48,517 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 05:31:48,517 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 05:31:48,517 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 05:31:48,517 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 05:31:48,517 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 05:31:48,518 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 05:31:48,518 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 05:31:48,518 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 05:31:48,518 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 -> bad8530dca87d639d49a604251c8b439dfbb73c75b0c2bc923bd7483617ddb0d [2025-01-09 05:31:48,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 05:31:48,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 05:31:48,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 05:31:48,735 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 05:31:48,735 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 05:31:48,736 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_2+newton_1_6.i [2025-01-09 05:31:49,887 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4b001a309/3180e7cbb5a94ac59183bd88daf62004/FLAGd53b9c187 [2025-01-09 05:31:50,034 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 05:31:50,034 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_2+newton_1_6.i [2025-01-09 05:31:50,039 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4b001a309/3180e7cbb5a94ac59183bd88daf62004/FLAGd53b9c187 [2025-01-09 05:31:50,434 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4b001a309/3180e7cbb5a94ac59183bd88daf62004 [2025-01-09 05:31:50,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 05:31:50,436 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 05:31:50,437 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 05:31:50,437 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 05:31:50,440 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 05:31:50,441 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:31:50" (1/1) ... [2025-01-09 05:31:50,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af74c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:50, skipping insertion in model container [2025-01-09 05:31:50,442 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:31:50" (1/1) ... [2025-01-09 05:31:50,456 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 05:31:50,570 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/combinations/gcd_2+newton_1_6.i[1226,1239] [2025-01-09 05:31:50,589 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/combinations/gcd_2+newton_1_6.i[2820,2833] [2025-01-09 05:31:50,590 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:31:50,604 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 05:31:50,615 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/combinations/gcd_2+newton_1_6.i[1226,1239] [2025-01-09 05:31:50,622 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/combinations/gcd_2+newton_1_6.i[2820,2833] [2025-01-09 05:31:50,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:31:50,637 INFO L204 MainTranslator]: Completed translation [2025-01-09 05:31:50,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:50 WrapperNode [2025-01-09 05:31:50,638 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 05:31:50,639 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 05:31:50,639 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 05:31:50,639 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 05:31:50,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:50" (1/1) ... [2025-01-09 05:31:50,648 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:50" (1/1) ... [2025-01-09 05:31:50,661 INFO L138 Inliner]: procedures = 28, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 79 [2025-01-09 05:31:50,661 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 05:31:50,662 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 05:31:50,662 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 05:31:50,662 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 05:31:50,668 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:50" (1/1) ... [2025-01-09 05:31:50,668 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:50" (1/1) ... [2025-01-09 05:31:50,670 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:50" (1/1) ... [2025-01-09 05:31:50,678 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2025-01-09 05:31:50,678 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:50" (1/1) ... [2025-01-09 05:31:50,678 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:50" (1/1) ... [2025-01-09 05:31:50,684 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:50" (1/1) ... [2025-01-09 05:31:50,687 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:50" (1/1) ... [2025-01-09 05:31:50,691 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:50" (1/1) ... [2025-01-09 05:31:50,692 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:50" (1/1) ... [2025-01-09 05:31:50,692 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:50" (1/1) ... [2025-01-09 05:31:50,697 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 05:31:50,698 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 05:31:50,698 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 05:31:50,698 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 05:31:50,702 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:50" (1/1) ... [2025-01-09 05:31:50,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:31:50,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 05:31:50,737 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 05:31:50,744 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 05:31:50,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 05:31:50,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 05:31:50,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-09 05:31:50,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 05:31:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 05:31:50,822 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 05:31:50,823 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 05:32:00,244 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2025-01-09 05:32:00,244 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 05:32:00,250 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 05:32:00,250 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 05:32:00,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:32:00 BoogieIcfgContainer [2025-01-09 05:32:00,250 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 05:32:00,252 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 05:32:00,252 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 05:32:00,255 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 05:32:00,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:31:50" (1/3) ... [2025-01-09 05:32:00,256 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d1a312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:32:00, skipping insertion in model container [2025-01-09 05:32:00,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:31:50" (2/3) ... [2025-01-09 05:32:00,256 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d1a312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:32:00, skipping insertion in model container [2025-01-09 05:32:00,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:32:00" (3/3) ... [2025-01-09 05:32:00,257 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_1_6.i [2025-01-09 05:32:00,269 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 05:32:00,270 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_2+newton_1_6.i that has 1 procedures, 26 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-01-09 05:32:00,303 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 05:32:00,310 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;@58579b02, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 05:32:00,310 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 05:32:00,313 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 23 states have (on average 1.434782608695652) internal successors, (33), 25 states have internal predecessors, (33), 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 05:32:00,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-09 05:32:00,316 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:32:00,317 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:32:00,317 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:32:00,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:32:00,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1676893550, now seen corresponding path program 1 times [2025-01-09 05:32:00,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 05:32:00,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997778888] [2025-01-09 05:32:00,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:32:00,328 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 05:32:00,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 05:32:00,330 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 05:32:00,332 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 05:32:00,369 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 05:32:01,251 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 05:32:01,252 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:32:01,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:32:01,285 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 05:32:01,287 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 05:32:01,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:32:01,308 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 05:32:01,308 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 05:32:01,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [997778888] [2025-01-09 05:32:01,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [997778888] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:32:01,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:32:01,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 05:32:01,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231486999] [2025-01-09 05:32:01,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:32:01,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 05:32:01,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 05:32:01,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 05:32:01,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 05:32:01,330 INFO L87 Difference]: Start difference. First operand has 26 states, 23 states have (on average 1.434782608695652) internal successors, (33), 25 states have internal predecessors, (33), 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 05:32:01,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:32:01,338 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2025-01-09 05:32:01,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 05:32:01,341 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) Word has length 9 [2025-01-09 05:32:01,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:32:01,345 INFO L225 Difference]: With dead ends: 40 [2025-01-09 05:32:01,345 INFO L226 Difference]: Without dead ends: 18 [2025-01-09 05:32:01,347 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 05:32:01,349 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 05:32:01,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:32:01,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2025-01-09 05:32:01,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2025-01-09 05:32:01,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 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 05:32:01,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2025-01-09 05:32:01,373 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 9 [2025-01-09 05:32:01,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:32:01,373 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2025-01-09 05:32:01,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 05:32:01,373 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2025-01-09 05:32:01,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-09 05:32:01,373 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:32:01,374 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:32:01,402 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 05:32:01,574 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 05:32:01,575 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:32:01,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:32:01,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1619635248, now seen corresponding path program 1 times [2025-01-09 05:32:01,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 05:32:01,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [443997429] [2025-01-09 05:32:01,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:32:01,576 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 05:32:01,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 05:32:01,579 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 05:32:01,581 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 05:32:01,604 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 05:32:14,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 05:32:14,293 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:32:14,293 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 05:32:14,293 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 05:32:14,349 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 05:32:26,430 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 05:32:26,430 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:32:26,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 05:32:26,496 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-01-09 05:32:26,496 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 05:32:26,497 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-01-09 05:32:26,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-01-09 05:32:26,543 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 (3)] Ended with exit code 0 [2025-01-09 05:32:26,703 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 05:32:26,706 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-09 05:32:26,717 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 05:32:26,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 05:32:26 BoogieIcfgContainer [2025-01-09 05:32:26,719 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 05:32:26,720 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 05:32:26,720 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 05:32:26,720 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 05:32:26,721 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:32:00" (3/4) ... [2025-01-09 05:32:26,721 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-01-09 05:32:26,746 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 11. [2025-01-09 05:32:26,779 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 05:32:26,780 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 05:32:26,780 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 05:32:26,780 INFO L158 Benchmark]: Toolchain (without parser) took 36344.28ms. Allocated memory is still 83.9MB. Free memory was 60.0MB in the beginning and 43.1MB in the end (delta: 16.9MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2025-01-09 05:32:26,781 INFO L158 Benchmark]: CDTParser took 1.88ms. Allocated memory is still 83.9MB. Free memory was 62.2MB in the beginning and 62.2MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:32:26,781 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.83ms. Allocated memory is still 83.9MB. Free memory was 59.7MB in the beginning and 47.2MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:32:26,781 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.56ms. Allocated memory is still 83.9MB. Free memory was 47.2MB in the beginning and 45.6MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:32:26,781 INFO L158 Benchmark]: Boogie Preprocessor took 35.83ms. Allocated memory is still 83.9MB. Free memory was 45.6MB in the beginning and 43.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:32:26,782 INFO L158 Benchmark]: RCFGBuilder took 9552.46ms. Allocated memory is still 83.9MB. Free memory was 43.8MB in the beginning and 31.3MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:32:26,782 INFO L158 Benchmark]: TraceAbstraction took 26467.55ms. Allocated memory is still 83.9MB. Free memory was 31.0MB in the beginning and 48.3MB in the end (delta: -17.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:32:26,782 INFO L158 Benchmark]: Witness Printer took 60.17ms. Allocated memory is still 83.9MB. Free memory was 48.3MB in the beginning and 43.1MB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:32:26,783 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.88ms. Allocated memory is still 83.9MB. Free memory was 62.2MB in the beginning and 62.2MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 200.83ms. Allocated memory is still 83.9MB. Free memory was 59.7MB in the beginning and 47.2MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.56ms. Allocated memory is still 83.9MB. Free memory was 47.2MB in the beginning and 45.6MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.83ms. Allocated memory is still 83.9MB. Free memory was 45.6MB in the beginning and 43.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 9552.46ms. Allocated memory is still 83.9MB. Free memory was 43.8MB in the beginning and 31.3MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 26467.55ms. Allocated memory is still 83.9MB. Free memory was 31.0MB in the beginning and 48.3MB in the end (delta: -17.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 60.17ms. Allocated memory is still 83.9MB. Free memory was 48.3MB in the beginning and 43.1MB in the end (delta: 5.2MB). 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 - CounterExampleResult [Line: 102]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L75] COND FALSE !(!cond) [L91] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\result=-0.9324363470077515] [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\result=0.3729694187641144] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) [L102] reach_error() - UnprovableResult [Line: 27]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 26.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 30 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 13.6s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 36 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 proved your program to be incorrect! [2025-01-09 05:32:26,864 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE