./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/gcd_3+newton_1_2.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_3+newton_1_2.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 96ec2e8436d28d80fc74b2bfe826a0c3f658cac9b1711d8b968fe796010eaf24 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 05:34:34,404 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 05:34:34,463 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 05:34:34,468 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 05:34:34,468 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 05:34:34,489 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 05:34:34,490 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 05:34:34,490 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 05:34:34,491 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 05:34:34,491 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 05:34:34,491 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 05:34:34,491 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 05:34:34,492 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 05:34:34,492 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 05:34:34,492 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 05:34:34,492 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 05:34:34,492 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 05:34:34,492 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 05:34:34,492 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 05:34:34,493 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 05:34:34,493 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 05:34:34,493 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 05:34:34,493 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 05:34:34,493 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 05:34:34,493 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 05:34:34,493 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 05:34:34,493 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 05:34:34,493 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 05:34:34,493 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 05:34:34,493 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:34:34,493 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:34:34,493 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:34:34,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:34:34,494 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 05:34:34,494 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:34:34,494 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:34:34,494 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:34:34,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:34:34,494 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 05:34:34,494 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 05:34:34,495 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 05:34:34,495 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 05:34:34,495 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 05:34:34,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 05:34:34,495 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 05:34:34,495 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 05:34:34,495 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 05:34:34,495 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 05:34:34,495 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 -> 96ec2e8436d28d80fc74b2bfe826a0c3f658cac9b1711d8b968fe796010eaf24 [2025-01-09 05:34:34,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 05:34:34,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 05:34:34,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 05:34:34,801 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 05:34:34,802 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 05:34:34,803 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_3+newton_1_2.i [2025-01-09 05:34:36,126 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3d14a54c7/1ce7e9665d1a4f8baa061a7c524ede35/FLAG21c9a84ce [2025-01-09 05:34:36,414 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 05:34:36,418 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_1_2.i [2025-01-09 05:34:36,428 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3d14a54c7/1ce7e9665d1a4f8baa061a7c524ede35/FLAG21c9a84ce [2025-01-09 05:34:36,446 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3d14a54c7/1ce7e9665d1a4f8baa061a7c524ede35 [2025-01-09 05:34:36,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 05:34:36,450 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 05:34:36,451 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 05:34:36,452 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 05:34:36,456 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 05:34:36,457 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:34:36" (1/1) ... [2025-01-09 05:34:36,458 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e9afa3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:36, skipping insertion in model container [2025-01-09 05:34:36,458 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:34:36" (1/1) ... [2025-01-09 05:34:36,477 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 05:34:36,627 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_3+newton_1_2.i[1226,1239] [2025-01-09 05:34:36,665 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_3+newton_1_2.i[2820,2833] [2025-01-09 05:34:36,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:34:36,675 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 05:34:36,685 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_3+newton_1_2.i[1226,1239] [2025-01-09 05:34:36,700 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_3+newton_1_2.i[2820,2833] [2025-01-09 05:34:36,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:34:36,719 INFO L204 MainTranslator]: Completed translation [2025-01-09 05:34:36,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:36 WrapperNode [2025-01-09 05:34:36,720 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 05:34:36,721 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 05:34:36,721 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 05:34:36,721 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 05:34:36,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:36" (1/1) ... [2025-01-09 05:34:36,733 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:36" (1/1) ... [2025-01-09 05:34:36,755 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 84 [2025-01-09 05:34:36,759 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 05:34:36,760 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 05:34:36,760 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 05:34:36,760 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 05:34:36,768 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:36" (1/1) ... [2025-01-09 05:34:36,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:36" (1/1) ... [2025-01-09 05:34:36,770 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:36" (1/1) ... [2025-01-09 05:34:36,781 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 05:34:36,782 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:36" (1/1) ... [2025-01-09 05:34:36,782 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:36" (1/1) ... [2025-01-09 05:34:36,786 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:36" (1/1) ... [2025-01-09 05:34:36,787 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:36" (1/1) ... [2025-01-09 05:34:36,789 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:36" (1/1) ... [2025-01-09 05:34:36,791 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:36" (1/1) ... [2025-01-09 05:34:36,791 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:36" (1/1) ... [2025-01-09 05:34:36,793 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 05:34:36,793 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 05:34:36,794 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 05:34:36,794 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 05:34:36,795 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:36" (1/1) ... [2025-01-09 05:34:36,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:34:36,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 05:34:36,831 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 05:34:36,834 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 05:34:36,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 05:34:36,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 05:34:36,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 05:34:36,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 05:34:36,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 05:34:36,915 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 05:34:36,916 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 05:34:37,054 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2025-01-09 05:34:37,055 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 05:34:37,061 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 05:34:37,062 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 05:34:37,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:34:37 BoogieIcfgContainer [2025-01-09 05:34:37,062 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 05:34:37,065 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 05:34:37,066 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 05:34:37,071 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 05:34:37,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:34:36" (1/3) ... [2025-01-09 05:34:37,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e626908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:34:37, skipping insertion in model container [2025-01-09 05:34:37,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:36" (2/3) ... [2025-01-09 05:34:37,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e626908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:34:37, skipping insertion in model container [2025-01-09 05:34:37,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:34:37" (3/3) ... [2025-01-09 05:34:37,074 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_2.i [2025-01-09 05:34:37,089 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 05:34:37,093 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_3+newton_1_2.i that has 1 procedures, 26 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-01-09 05:34:37,147 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 05:34:37,158 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;@10fd1c73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 05:34:37,159 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 05:34:37,162 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 05:34:37,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-09 05:34:37,165 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:34:37,166 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:34:37,166 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:34:37,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:34:37,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1676893550, now seen corresponding path program 1 times [2025-01-09 05:34:37,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:34:37,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357042828] [2025-01-09 05:34:37,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:34:37,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:34:37,247 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 05:34:37,263 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 05:34:37,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:34:37,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:34:37,309 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 05:34:37,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:34:37,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357042828] [2025-01-09 05:34:37,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357042828] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:34:37,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:34:37,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 05:34:37,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494132666] [2025-01-09 05:34:37,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:34:37,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 05:34:37,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:34:37,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 05:34:37,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 05:34:37,336 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 05:34:37,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:34:37,348 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2025-01-09 05:34:37,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 05:34:37,350 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 05:34:37,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:34:37,355 INFO L225 Difference]: With dead ends: 40 [2025-01-09 05:34:37,356 INFO L226 Difference]: Without dead ends: 18 [2025-01-09 05:34:37,358 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 05:34:37,361 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 05:34:37,361 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 05:34:37,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2025-01-09 05:34:37,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2025-01-09 05:34:37,384 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 05:34:37,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2025-01-09 05:34:37,390 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 9 [2025-01-09 05:34:37,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:34:37,390 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2025-01-09 05:34:37,391 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 05:34:37,391 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2025-01-09 05:34:37,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-09 05:34:37,392 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:34:37,392 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:34:37,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 05:34:37,393 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:34:37,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:34:37,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1619635248, now seen corresponding path program 1 times [2025-01-09 05:34:37,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:34:37,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298085485] [2025-01-09 05:34:37,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:34:37,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:34:37,408 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 05:34:37,428 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 05:34:37,428 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:34:37,428 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 05:34:37,428 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 05:34:37,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 05:34:37,443 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 05:34:37,443 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:34:37,443 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 05:34:37,462 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 05:34:37,463 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 05:34:37,464 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-01-09 05:34:37,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-01-09 05:34:37,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 05:34:37,469 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-09 05:34:37,482 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 05:34:37,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 05:34:37 BoogieIcfgContainer [2025-01-09 05:34:37,488 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 05:34:37,489 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 05:34:37,489 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 05:34:37,490 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 05:34:37,490 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:34:37" (3/4) ... [2025-01-09 05:34:37,493 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 05:34:37,493 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 05:34:37,494 INFO L158 Benchmark]: Toolchain (without parser) took 1044.29ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 64.2MB in the end (delta: 48.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-01-09 05:34:37,494 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 201.3MB. Free memory is still 122.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:34:37,495 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.16ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 100.6MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:34:37,495 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.97ms. Allocated memory is still 142.6MB. Free memory was 100.3MB in the beginning and 99.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:34:37,496 INFO L158 Benchmark]: Boogie Preprocessor took 33.04ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 97.4MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:34:37,496 INFO L158 Benchmark]: RCFGBuilder took 269.11ms. Allocated memory is still 142.6MB. Free memory was 97.0MB in the beginning and 84.6MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:34:37,496 INFO L158 Benchmark]: TraceAbstraction took 423.27ms. Allocated memory is still 142.6MB. Free memory was 84.3MB in the beginning and 64.5MB in the end (delta: 19.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 05:34:37,496 INFO L158 Benchmark]: Witness Printer took 4.68ms. Allocated memory is still 142.6MB. Free memory was 64.5MB in the beginning and 64.2MB in the end (delta: 332.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:34:37,497 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 201.3MB. Free memory is still 122.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.16ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 100.6MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.97ms. Allocated memory is still 142.6MB. Free memory was 100.3MB in the beginning and 99.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.04ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 97.4MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 269.11ms. Allocated memory is still 142.6MB. Free memory was 97.0MB in the beginning and 84.6MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 423.27ms. Allocated memory is still 142.6MB. Free memory was 84.3MB in the beginning and 64.5MB in the end (delta: 19.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.68ms. Allocated memory is still 142.6MB. Free memory was 64.5MB in the beginning and 64.2MB in the end (delta: 332.6kB). 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 85, overapproximation of someBinaryArithmeticFLOAToperation at line 80, overapproximation of someBinaryArithmeticFLOAToperation at line 93. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -0.4f && IN < 0.4f) [L75] COND FALSE !(!cond) [L91] RET assume_abort_if_not(IN > -0.4f && IN < 0.4f) [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: 0.3s, 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 05:34:37,520 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_3+newton_1_2.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 96ec2e8436d28d80fc74b2bfe826a0c3f658cac9b1711d8b968fe796010eaf24 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 05:34:39,815 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 05:34:39,925 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 05:34:39,933 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 05:34:39,933 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 05:34:39,953 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 05:34:39,954 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 05:34:39,955 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 05:34:39,955 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 05:34:39,955 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 05:34:39,956 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 05:34:39,956 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 05:34:39,956 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 05:34:39,956 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 05:34:39,956 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 05:34:39,956 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 05:34:39,957 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 05:34:39,957 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 05:34:39,957 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 05:34:39,957 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 05:34:39,957 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 05:34:39,957 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 05:34:39,957 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 05:34:39,957 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 05:34:39,958 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 05:34:39,958 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 05:34:39,958 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 05:34:39,958 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 05:34:39,958 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 05:34:39,958 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 05:34:39,958 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 05:34:39,959 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:34:39,959 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:34:39,959 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:34:39,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:34:39,959 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 05:34:39,959 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:34:39,959 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:34:39,959 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:34:39,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:34:39,960 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 05:34:39,960 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 05:34:39,960 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 05:34:39,960 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 05:34:39,960 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 05:34:39,960 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 05:34:39,960 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 05:34:39,960 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 05:34:39,961 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 05:34:39,961 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 05:34:39,961 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 -> 96ec2e8436d28d80fc74b2bfe826a0c3f658cac9b1711d8b968fe796010eaf24 [2025-01-09 05:34:40,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 05:34:40,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 05:34:40,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 05:34:40,262 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 05:34:40,262 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 05:34:40,264 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_3+newton_1_2.i [2025-01-09 05:34:41,645 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bafb21a70/6dbb61a4f1ce43b29aae3e6575827611/FLAG217e8a62c [2025-01-09 05:34:41,837 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 05:34:41,838 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_1_2.i [2025-01-09 05:34:41,846 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bafb21a70/6dbb61a4f1ce43b29aae3e6575827611/FLAG217e8a62c [2025-01-09 05:34:41,862 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bafb21a70/6dbb61a4f1ce43b29aae3e6575827611 [2025-01-09 05:34:41,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 05:34:41,866 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 05:34:41,867 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 05:34:41,867 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 05:34:41,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 05:34:41,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:34:41" (1/1) ... [2025-01-09 05:34:41,872 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a690101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:41, skipping insertion in model container [2025-01-09 05:34:41,873 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:34:41" (1/1) ... [2025-01-09 05:34:41,886 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 05:34:42,028 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_3+newton_1_2.i[1226,1239] [2025-01-09 05:34:42,069 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_3+newton_1_2.i[2820,2833] [2025-01-09 05:34:42,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:34:42,089 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 05:34:42,101 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_3+newton_1_2.i[1226,1239] [2025-01-09 05:34:42,119 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_3+newton_1_2.i[2820,2833] [2025-01-09 05:34:42,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:34:42,140 INFO L204 MainTranslator]: Completed translation [2025-01-09 05:34:42,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:42 WrapperNode [2025-01-09 05:34:42,143 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 05:34:42,144 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 05:34:42,144 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 05:34:42,144 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 05:34:42,149 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:42" (1/1) ... [2025-01-09 05:34:42,163 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:42" (1/1) ... [2025-01-09 05:34:42,186 INFO L138 Inliner]: procedures = 28, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 79 [2025-01-09 05:34:42,189 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 05:34:42,190 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 05:34:42,190 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 05:34:42,190 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 05:34:42,198 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:42" (1/1) ... [2025-01-09 05:34:42,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:42" (1/1) ... [2025-01-09 05:34:42,202 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:42" (1/1) ... [2025-01-09 05:34:42,219 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 05:34:42,222 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:42" (1/1) ... [2025-01-09 05:34:42,223 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:42" (1/1) ... [2025-01-09 05:34:42,231 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:42" (1/1) ... [2025-01-09 05:34:42,235 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:42" (1/1) ... [2025-01-09 05:34:42,238 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:42" (1/1) ... [2025-01-09 05:34:42,241 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:42" (1/1) ... [2025-01-09 05:34:42,242 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:42" (1/1) ... [2025-01-09 05:34:42,247 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 05:34:42,248 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 05:34:42,251 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 05:34:42,251 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 05:34:42,254 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:42" (1/1) ... [2025-01-09 05:34:42,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:34:42,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 05:34:42,282 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 05:34:42,284 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 05:34:42,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 05:34:42,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 05:34:42,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-09 05:34:42,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 05:34:42,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 05:34:42,375 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 05:34:42,377 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 05:34:52,163 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2025-01-09 05:34:52,164 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 05:34:52,172 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 05:34:52,173 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 05:34:52,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:34:52 BoogieIcfgContainer [2025-01-09 05:34:52,173 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 05:34:52,176 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 05:34:52,176 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 05:34:52,180 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 05:34:52,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:34:41" (1/3) ... [2025-01-09 05:34:52,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a91df93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:34:52, skipping insertion in model container [2025-01-09 05:34:52,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:34:42" (2/3) ... [2025-01-09 05:34:52,182 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a91df93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:34:52, skipping insertion in model container [2025-01-09 05:34:52,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:34:52" (3/3) ... [2025-01-09 05:34:52,183 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_2.i [2025-01-09 05:34:52,199 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 05:34:52,202 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_3+newton_1_2.i that has 1 procedures, 26 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-01-09 05:34:52,257 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 05:34:52,270 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;@6f0468e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 05:34:52,270 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 05:34:52,275 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 05:34:52,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-09 05:34:52,280 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:34:52,281 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:34:52,282 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:34:52,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:34:52,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1676893550, now seen corresponding path program 1 times [2025-01-09 05:34:52,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 05:34:52,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [976315673] [2025-01-09 05:34:52,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:34:52,301 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 05:34:52,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 05:34:52,306 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 05:34:52,307 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 05:34:52,372 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 05:34:53,288 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 05:34:53,288 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:34:53,288 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:34:53,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 05:34:53,329 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 05:34:53,362 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 05:34:53,363 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 05:34:53,363 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 05:34:53,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [976315673] [2025-01-09 05:34:53,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [976315673] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:34:53,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:34:53,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 05:34:53,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992992404] [2025-01-09 05:34:53,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:34:53,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 05:34:53,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 05:34:53,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 05:34:53,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 05:34:53,387 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 05:34:53,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:34:53,397 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2025-01-09 05:34:53,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 05:34:53,399 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 05:34:53,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:34:53,403 INFO L225 Difference]: With dead ends: 40 [2025-01-09 05:34:53,403 INFO L226 Difference]: Without dead ends: 18 [2025-01-09 05:34:53,405 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 05:34:53,407 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 05:34:53,408 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 05:34:53,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2025-01-09 05:34:53,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2025-01-09 05:34:53,429 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 05:34:53,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2025-01-09 05:34:53,433 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 9 [2025-01-09 05:34:53,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:34:53,433 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2025-01-09 05:34:53,433 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 05:34:53,434 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2025-01-09 05:34:53,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-09 05:34:53,434 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:34:53,434 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:34:53,462 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 05:34:53,635 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 05:34:53,635 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:34:53,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:34:53,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1619635248, now seen corresponding path program 1 times [2025-01-09 05:34:53,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 05:34:53,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151850918] [2025-01-09 05:34:53,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:34:53,636 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 05:34:53,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 05:34:53,639 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 05:34:53,640 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 05:34:53,675 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes.