./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/gcd_4+newton_1_1.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_4+newton_1_1.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 6350103920575a4c7a5643f51f7bc8e829a7fbf85ea9b0288d4dadd8696b7030 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 05:37:29,254 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 05:37:29,288 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 05:37:29,291 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 05:37:29,291 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 05:37:29,304 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 05:37:29,304 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 05:37:29,305 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 05:37:29,305 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 05:37:29,305 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 05:37:29,305 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 05:37:29,305 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 05:37:29,305 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 05:37:29,305 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 05:37:29,305 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 05:37:29,306 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 05:37:29,306 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 05:37:29,306 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 05:37:29,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 05:37:29,306 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 05:37:29,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 05:37:29,306 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 05:37:29,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 05:37:29,306 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 05:37:29,306 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 05:37:29,306 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 05:37:29,307 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 05:37:29,307 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 05:37:29,307 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 05:37:29,307 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:37:29,307 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:37:29,307 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:37:29,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:37:29,307 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 05:37:29,307 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:37:29,307 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:37:29,307 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:37:29,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:37:29,308 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 05:37:29,308 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 05:37:29,308 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 05:37:29,308 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 05:37:29,308 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 05:37:29,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 05:37:29,308 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 05:37:29,308 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 05:37:29,308 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 05:37:29,308 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 05:37:29,308 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 -> 6350103920575a4c7a5643f51f7bc8e829a7fbf85ea9b0288d4dadd8696b7030 [2025-01-09 05:37:29,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 05:37:29,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 05:37:29,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 05:37:29,506 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 05:37:29,506 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 05:37:29,506 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_4+newton_1_1.i [2025-01-09 05:37:30,651 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/69674ddb9/cd275a01684549759b6f7cd267ea7ce9/FLAGb38ced6cd [2025-01-09 05:37:30,899 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 05:37:30,899 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_4+newton_1_1.i [2025-01-09 05:37:30,909 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/69674ddb9/cd275a01684549759b6f7cd267ea7ce9/FLAGb38ced6cd [2025-01-09 05:37:31,235 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/69674ddb9/cd275a01684549759b6f7cd267ea7ce9 [2025-01-09 05:37:31,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 05:37:31,238 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 05:37:31,239 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 05:37:31,239 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 05:37:31,242 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 05:37:31,243 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:37:31" (1/1) ... [2025-01-09 05:37:31,244 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31b8559a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:31, skipping insertion in model container [2025-01-09 05:37:31,244 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:37:31" (1/1) ... [2025-01-09 05:37:31,257 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 05:37:31,369 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_4+newton_1_1.i[1224,1237] [2025-01-09 05:37:31,392 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_4+newton_1_1.i[2806,2819] [2025-01-09 05:37:31,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:37:31,399 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 05:37:31,409 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_4+newton_1_1.i[1224,1237] [2025-01-09 05:37:31,416 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_4+newton_1_1.i[2806,2819] [2025-01-09 05:37:31,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:37:31,427 INFO L204 MainTranslator]: Completed translation [2025-01-09 05:37:31,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:31 WrapperNode [2025-01-09 05:37:31,427 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 05:37:31,428 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 05:37:31,428 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 05:37:31,428 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 05:37:31,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:31" (1/1) ... [2025-01-09 05:37:31,436 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:31" (1/1) ... [2025-01-09 05:37:31,446 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 77 [2025-01-09 05:37:31,446 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 05:37:31,446 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 05:37:31,446 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 05:37:31,446 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 05:37:31,451 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:31" (1/1) ... [2025-01-09 05:37:31,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:31" (1/1) ... [2025-01-09 05:37:31,453 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:31" (1/1) ... [2025-01-09 05:37:31,459 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 05:37:31,459 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:31" (1/1) ... [2025-01-09 05:37:31,459 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:31" (1/1) ... [2025-01-09 05:37:31,462 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:31" (1/1) ... [2025-01-09 05:37:31,462 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:31" (1/1) ... [2025-01-09 05:37:31,468 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:31" (1/1) ... [2025-01-09 05:37:31,469 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:31" (1/1) ... [2025-01-09 05:37:31,469 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:31" (1/1) ... [2025-01-09 05:37:31,470 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 05:37:31,471 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 05:37:31,471 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 05:37:31,471 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 05:37:31,471 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:31" (1/1) ... [2025-01-09 05:37:31,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:37:31,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 05:37:31,495 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 05:37:31,497 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 05:37:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 05:37:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 05:37:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 05:37:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 05:37:31,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 05:37:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 05:37:31,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 05:37:31,551 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 05:37:31,552 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 05:37:31,633 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2025-01-09 05:37:31,634 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 05:37:31,639 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 05:37:31,639 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 05:37:31,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:37:31 BoogieIcfgContainer [2025-01-09 05:37:31,640 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 05:37:31,641 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 05:37:31,641 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 05:37:31,644 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 05:37:31,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:37:31" (1/3) ... [2025-01-09 05:37:31,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7040bd5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:37:31, skipping insertion in model container [2025-01-09 05:37:31,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:31" (2/3) ... [2025-01-09 05:37:31,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7040bd5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:37:31, skipping insertion in model container [2025-01-09 05:37:31,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:37:31" (3/3) ... [2025-01-09 05:37:31,646 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_1.i [2025-01-09 05:37:31,655 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 05:37:31,656 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_4+newton_1_1.i that has 2 procedures, 32 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-01-09 05:37:31,685 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 05:37:31,692 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;@1e68ddb4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 05:37:31,692 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 05:37:31,694 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 25 states have (on average 1.44) internal successors, (36), 27 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-09 05:37:31,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-09 05:37:31,698 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:37:31,698 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:37:31,698 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:37:31,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:37:31,701 INFO L85 PathProgramCache]: Analyzing trace with hash 841157774, now seen corresponding path program 1 times [2025-01-09 05:37:31,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:37:31,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236821099] [2025-01-09 05:37:31,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:37:31,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:37:31,750 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 05:37:31,764 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 05:37:31,764 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:37:31,764 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 05:37:31,765 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 05:37:31,767 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 05:37:31,772 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 05:37:31,772 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:37:31,772 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 05:37:31,782 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 05:37:31,783 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 05:37:31,784 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-01-09 05:37:31,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-01-09 05:37:31,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 05:37:31,788 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-09 05:37:31,812 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 05:37:31,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 05:37:31 BoogieIcfgContainer [2025-01-09 05:37:31,816 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 05:37:31,817 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 05:37:31,817 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 05:37:31,817 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 05:37:31,818 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:37:31" (3/4) ... [2025-01-09 05:37:31,820 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 05:37:31,820 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 05:37:31,821 INFO L158 Benchmark]: Toolchain (without parser) took 582.43ms. Allocated memory is still 167.8MB. Free memory was 123.2MB in the beginning and 82.1MB in the end (delta: 41.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-01-09 05:37:31,821 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:37:31,821 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.05ms. Allocated memory is still 167.8MB. Free memory was 123.2MB in the beginning and 111.4MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:37:31,821 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.04ms. Allocated memory is still 167.8MB. Free memory was 111.4MB in the beginning and 109.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:37:31,823 INFO L158 Benchmark]: Boogie Preprocessor took 23.81ms. Allocated memory is still 167.8MB. Free memory was 109.9MB in the beginning and 108.0MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:37:31,824 INFO L158 Benchmark]: RCFGBuilder took 169.25ms. Allocated memory is still 167.8MB. Free memory was 108.0MB in the beginning and 95.3MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:37:31,824 INFO L158 Benchmark]: TraceAbstraction took 174.84ms. Allocated memory is still 167.8MB. Free memory was 94.6MB in the beginning and 82.1MB in the end (delta: 12.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 05:37:31,824 INFO L158 Benchmark]: Witness Printer took 3.02ms. Allocated memory is still 167.8MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:37:31,826 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 201.3MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 188.05ms. Allocated memory is still 167.8MB. Free memory was 123.2MB in the beginning and 111.4MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.04ms. Allocated memory is still 167.8MB. Free memory was 111.4MB in the beginning and 109.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.81ms. Allocated memory is still 167.8MB. Free memory was 109.9MB in the beginning and 108.0MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 169.25ms. Allocated memory is still 167.8MB. Free memory was 108.0MB in the beginning and 95.3MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 174.84ms. Allocated memory is still 167.8MB. Free memory was 94.6MB in the beginning and 82.1MB in the end (delta: 12.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.02ms. Allocated memory is still 167.8MB. Free memory is still 82.1MB. 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: 109]: 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 98, overapproximation of someBinaryDOUBLEComparisonOperation at line 108, overapproximation of someBinaryArithmeticFLOAToperation at line 100, overapproximation of someBinaryArithmeticFLOAToperation at line 92, overapproximation of someBinaryArithmeticFLOAToperation at line 87. Possible FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -0.2f && IN < 0.2f) [L82] COND FALSE !(!cond) [L98] RET assume_abort_if_not(IN > -0.2f && IN < 0.2f) [L100] CALL, EXPR f(IN) [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L100] RET, EXPR f(IN) [L100] CALL, EXPR fp(IN) [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L100] RET, EXPR fp(IN) [L100] float x = IN - f(IN)/fp(IN); [L108] COND TRUE !(x < 0.1) [L109] 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 2 procedures, 32 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-01-09 05:37:31,844 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_4+newton_1_1.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 6350103920575a4c7a5643f51f7bc8e829a7fbf85ea9b0288d4dadd8696b7030 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 05:37:33,810 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 05:37:33,910 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 05:37:33,916 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 05:37:33,916 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 05:37:33,930 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 05:37:33,930 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 05:37:33,930 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 05:37:33,930 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 05:37:33,931 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 05:37:33,931 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 05:37:33,932 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 05:37:33,932 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 05:37:33,932 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 05:37:33,932 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 05:37:33,932 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 05:37:33,932 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 05:37:33,933 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 05:37:33,933 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 05:37:33,933 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 05:37:33,933 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 05:37:33,933 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 05:37:33,933 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 05:37:33,933 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 05:37:33,933 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 05:37:33,933 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 05:37:33,933 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 05:37:33,934 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 05:37:33,934 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 05:37:33,934 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 05:37:33,934 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 05:37:33,934 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:37:33,934 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:37:33,934 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:37:33,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:37:33,935 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 05:37:33,935 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:37:33,935 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:37:33,935 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:37:33,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:37:33,935 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 05:37:33,935 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 05:37:33,935 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 05:37:33,935 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 05:37:33,935 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 05:37:33,935 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 05:37:33,935 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 05:37:33,935 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 05:37:33,935 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 05:37:33,936 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 05:37:33,936 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 -> 6350103920575a4c7a5643f51f7bc8e829a7fbf85ea9b0288d4dadd8696b7030 [2025-01-09 05:37:34,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 05:37:34,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 05:37:34,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 05:37:34,167 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 05:37:34,167 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 05:37:34,168 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_4+newton_1_1.i [2025-01-09 05:37:35,364 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e34650f68/0b9f4ffdd68f4a15bb2b43d96a73b1db/FLAGdca9fe40e [2025-01-09 05:37:35,532 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 05:37:35,533 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_4+newton_1_1.i [2025-01-09 05:37:35,538 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e34650f68/0b9f4ffdd68f4a15bb2b43d96a73b1db/FLAGdca9fe40e [2025-01-09 05:37:35,551 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e34650f68/0b9f4ffdd68f4a15bb2b43d96a73b1db [2025-01-09 05:37:35,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 05:37:35,554 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 05:37:35,554 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 05:37:35,555 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 05:37:35,558 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 05:37:35,558 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:37:35" (1/1) ... [2025-01-09 05:37:35,559 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6db427ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:35, skipping insertion in model container [2025-01-09 05:37:35,559 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:37:35" (1/1) ... [2025-01-09 05:37:35,571 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 05:37:35,684 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_4+newton_1_1.i[1224,1237] [2025-01-09 05:37:35,712 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_4+newton_1_1.i[2806,2819] [2025-01-09 05:37:35,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:37:35,730 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 05:37:35,741 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_4+newton_1_1.i[1224,1237] [2025-01-09 05:37:35,751 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_4+newton_1_1.i[2806,2819] [2025-01-09 05:37:35,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:37:35,769 INFO L204 MainTranslator]: Completed translation [2025-01-09 05:37:35,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:35 WrapperNode [2025-01-09 05:37:35,770 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 05:37:35,771 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 05:37:35,772 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 05:37:35,772 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 05:37:35,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:35" (1/1) ... [2025-01-09 05:37:35,787 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:35" (1/1) ... [2025-01-09 05:37:35,803 INFO L138 Inliner]: procedures = 28, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 74 [2025-01-09 05:37:35,803 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 05:37:35,804 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 05:37:35,804 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 05:37:35,804 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 05:37:35,812 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:35" (1/1) ... [2025-01-09 05:37:35,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:35" (1/1) ... [2025-01-09 05:37:35,814 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:35" (1/1) ... [2025-01-09 05:37:35,822 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 05:37:35,822 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:35" (1/1) ... [2025-01-09 05:37:35,823 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:35" (1/1) ... [2025-01-09 05:37:35,832 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:35" (1/1) ... [2025-01-09 05:37:35,833 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:35" (1/1) ... [2025-01-09 05:37:35,835 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:35" (1/1) ... [2025-01-09 05:37:35,839 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:35" (1/1) ... [2025-01-09 05:37:35,840 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:35" (1/1) ... [2025-01-09 05:37:35,841 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 05:37:35,845 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 05:37:35,845 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 05:37:35,845 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 05:37:35,846 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:35" (1/1) ... [2025-01-09 05:37:35,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:37:35,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 05:37:35,871 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 05:37:35,874 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 05:37:35,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 05:37:35,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 05:37:35,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-09 05:37:35,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 05:37:35,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 05:37:35,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 05:37:35,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 05:37:35,948 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 05:37:35,949 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 05:37:45,458 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2025-01-09 05:37:45,458 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 05:37:45,463 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 05:37:45,463 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 05:37:45,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:37:45 BoogieIcfgContainer [2025-01-09 05:37:45,464 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 05:37:45,465 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 05:37:45,465 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 05:37:45,468 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 05:37:45,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:37:35" (1/3) ... [2025-01-09 05:37:45,469 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52835b2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:37:45, skipping insertion in model container [2025-01-09 05:37:45,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:37:35" (2/3) ... [2025-01-09 05:37:45,469 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52835b2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:37:45, skipping insertion in model container [2025-01-09 05:37:45,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:37:45" (3/3) ... [2025-01-09 05:37:45,470 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_1.i [2025-01-09 05:37:45,479 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 05:37:45,480 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_4+newton_1_1.i that has 2 procedures, 32 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-01-09 05:37:45,509 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 05:37:45,523 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;@4a062a70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 05:37:45,523 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 05:37:45,526 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 25 states have (on average 1.44) internal successors, (36), 27 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-09 05:37:45,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-09 05:37:45,530 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:37:45,530 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:37:45,530 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:37:45,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:37:45,534 INFO L85 PathProgramCache]: Analyzing trace with hash 841157774, now seen corresponding path program 1 times [2025-01-09 05:37:45,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 05:37:45,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768005912] [2025-01-09 05:37:45,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:37:45,544 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 05:37:45,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 05:37:45,547 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 05:37:45,549 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 05:37:45,578 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes.