./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/gcd_4+newton_1_7.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_7.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 5bba7076723828a76d549dab99f9f19216b374670dd0bb1f48d42a5f4a5ac3a7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 05:38:11,508 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 05:38:11,548 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 05:38:11,552 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 05:38:11,552 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 05:38:11,570 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 05:38:11,571 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 05:38:11,571 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 05:38:11,571 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 05:38:11,571 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 05:38:11,571 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 05:38:11,572 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 05:38:11,572 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 05:38:11,572 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 05:38:11,572 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 05:38:11,572 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 05:38:11,572 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 05:38:11,572 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 05:38:11,572 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 05:38:11,572 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 05:38:11,573 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 05:38:11,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 05:38:11,573 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 05:38:11,573 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 05:38:11,573 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 05:38:11,573 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 05:38:11,573 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 05:38:11,573 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 05:38:11,573 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 05:38:11,573 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:38:11,573 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:38:11,573 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:38:11,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:38:11,573 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 05:38:11,573 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:38:11,573 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:38:11,573 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:38:11,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:38:11,574 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 05:38:11,574 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 05:38:11,574 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 05:38:11,574 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 05:38:11,574 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 05:38:11,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 05:38:11,574 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 05:38:11,574 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 05:38:11,574 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 05:38:11,574 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 05:38:11,574 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 -> 5bba7076723828a76d549dab99f9f19216b374670dd0bb1f48d42a5f4a5ac3a7 [2025-01-09 05:38:11,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 05:38:11,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 05:38:11,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 05:38:11,797 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 05:38:11,798 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 05:38:11,798 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_4+newton_1_7.i [2025-01-09 05:38:12,954 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d12404bcc/11d3220d34fc4950bfbfb9eb6e9fb638/FLAG34ee75240 [2025-01-09 05:38:13,215 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 05:38:13,216 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_4+newton_1_7.i [2025-01-09 05:38:13,226 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d12404bcc/11d3220d34fc4950bfbfb9eb6e9fb638/FLAG34ee75240 [2025-01-09 05:38:13,532 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d12404bcc/11d3220d34fc4950bfbfb9eb6e9fb638 [2025-01-09 05:38:13,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 05:38:13,534 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 05:38:13,535 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 05:38:13,535 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 05:38:13,538 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 05:38:13,539 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:38:13" (1/1) ... [2025-01-09 05:38:13,539 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e194ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:13, skipping insertion in model container [2025-01-09 05:38:13,539 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:38:13" (1/1) ... [2025-01-09 05:38:13,549 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 05:38:13,648 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_7.i[1224,1237] [2025-01-09 05:38:13,674 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_7.i[2806,2819] [2025-01-09 05:38:13,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:38:13,686 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 05:38:13,694 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_7.i[1224,1237] [2025-01-09 05:38:13,705 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_7.i[2806,2819] [2025-01-09 05:38:13,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:38:13,719 INFO L204 MainTranslator]: Completed translation [2025-01-09 05:38:13,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:13 WrapperNode [2025-01-09 05:38:13,721 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 05:38:13,722 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 05:38:13,722 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 05:38:13,723 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 05:38:13,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:13" (1/1) ... [2025-01-09 05:38:13,732 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:13" (1/1) ... [2025-01-09 05:38:13,749 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 77 [2025-01-09 05:38:13,750 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 05:38:13,751 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 05:38:13,751 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 05:38:13,751 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 05:38:13,757 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:13" (1/1) ... [2025-01-09 05:38:13,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:13" (1/1) ... [2025-01-09 05:38:13,759 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:13" (1/1) ... [2025-01-09 05:38:13,765 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 05:38:13,766 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:13" (1/1) ... [2025-01-09 05:38:13,766 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:13" (1/1) ... [2025-01-09 05:38:13,768 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:13" (1/1) ... [2025-01-09 05:38:13,769 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:13" (1/1) ... [2025-01-09 05:38:13,771 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:13" (1/1) ... [2025-01-09 05:38:13,772 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:13" (1/1) ... [2025-01-09 05:38:13,772 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:13" (1/1) ... [2025-01-09 05:38:13,773 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 05:38:13,773 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 05:38:13,774 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 05:38:13,774 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 05:38:13,774 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:13" (1/1) ... [2025-01-09 05:38:13,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:38:13,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 05:38:13,797 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 05:38:13,799 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 05:38:13,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 05:38:13,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 05:38:13,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 05:38:13,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 05:38:13,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 05:38:13,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 05:38:13,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 05:38:13,858 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 05:38:13,859 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 05:38:13,957 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2025-01-09 05:38:13,957 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 05:38:13,963 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 05:38:13,963 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 05:38:13,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:38:13 BoogieIcfgContainer [2025-01-09 05:38:13,963 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 05:38:13,965 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 05:38:13,965 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 05:38:13,968 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 05:38:13,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:38:13" (1/3) ... [2025-01-09 05:38:13,969 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10336b33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:38:13, skipping insertion in model container [2025-01-09 05:38:13,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:13" (2/3) ... [2025-01-09 05:38:13,969 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10336b33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:38:13, skipping insertion in model container [2025-01-09 05:38:13,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:38:13" (3/3) ... [2025-01-09 05:38:13,970 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_7.i [2025-01-09 05:38:13,981 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 05:38:13,982 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_4+newton_1_7.i that has 2 procedures, 32 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-01-09 05:38:14,023 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 05:38:14,033 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;@92a466b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 05:38:14,033 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 05:38:14,036 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 05:38:14,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-09 05:38:14,040 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:38:14,040 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:38:14,040 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:38:14,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:38:14,044 INFO L85 PathProgramCache]: Analyzing trace with hash 841157774, now seen corresponding path program 1 times [2025-01-09 05:38:14,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:38:14,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712449258] [2025-01-09 05:38:14,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:38:14,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:38:14,093 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 05:38:14,105 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 05:38:14,106 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:38:14,106 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 05:38:14,106 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 05:38:14,109 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 05:38:14,113 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 05:38:14,113 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:38:14,113 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 05:38:14,127 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 05:38:14,128 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 05:38:14,128 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-01-09 05:38:14,129 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-01-09 05:38:14,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 05:38:14,132 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-09 05:38:14,141 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 05:38:14,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 05:38:14 BoogieIcfgContainer [2025-01-09 05:38:14,144 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 05:38:14,144 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 05:38:14,144 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 05:38:14,144 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 05:38:14,145 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:38:13" (3/4) ... [2025-01-09 05:38:14,146 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 05:38:14,147 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 05:38:14,147 INFO L158 Benchmark]: Toolchain (without parser) took 612.86ms. Allocated memory is still 167.8MB. Free memory was 122.5MB in the beginning and 82.1MB in the end (delta: 40.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-01-09 05:38:14,147 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 119.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:38:14,148 INFO L158 Benchmark]: CACSL2BoogieTranslator took 185.61ms. Allocated memory is still 167.8MB. Free memory was 122.5MB in the beginning and 110.8MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:38:14,148 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.74ms. Allocated memory is still 167.8MB. Free memory was 110.8MB in the beginning and 109.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:38:14,148 INFO L158 Benchmark]: Boogie Preprocessor took 21.81ms. Allocated memory is still 167.8MB. Free memory was 109.5MB in the beginning and 107.7MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:38:14,148 INFO L158 Benchmark]: RCFGBuilder took 190.07ms. Allocated memory is still 167.8MB. Free memory was 107.7MB in the beginning and 95.6MB in the end (delta: 12.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:38:14,149 INFO L158 Benchmark]: TraceAbstraction took 178.60ms. Allocated memory is still 167.8MB. Free memory was 94.7MB in the beginning and 82.1MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 05:38:14,149 INFO L158 Benchmark]: Witness Printer took 2.57ms. 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 05:38:14,150 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 119.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 185.61ms. Allocated memory is still 167.8MB. Free memory was 122.5MB in the beginning and 110.8MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.74ms. Allocated memory is still 167.8MB. Free memory was 110.8MB in the beginning and 109.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.81ms. Allocated memory is still 167.8MB. Free memory was 109.5MB in the beginning and 107.7MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 190.07ms. Allocated memory is still 167.8MB. Free memory was 107.7MB in the beginning and 95.6MB in the end (delta: 12.1MB). There was no memory consumed. Max. memory is 16.1GB. * TraceAbstraction took 178.60ms. Allocated memory is still 167.8MB. Free memory was 94.7MB in the beginning and 82.1MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 2.57ms. 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 87, overapproximation of someBinaryArithmeticFLOAToperation at line 92. Possible FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L82] COND FALSE !(!cond) [L98] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [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 05:38:14,162 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_7.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 5bba7076723828a76d549dab99f9f19216b374670dd0bb1f48d42a5f4a5ac3a7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 05:38:15,915 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 05:38:15,990 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 05:38:15,996 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 05:38:15,996 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 05:38:16,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 05:38:16,023 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 05:38:16,023 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 05:38:16,023 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 05:38:16,023 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 05:38:16,024 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 05:38:16,024 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 05:38:16,024 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 05:38:16,025 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 05:38:16,025 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 05:38:16,025 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 05:38:16,025 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 05:38:16,025 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 05:38:16,025 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 05:38:16,025 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 05:38:16,025 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 05:38:16,026 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 05:38:16,026 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 05:38:16,026 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 05:38:16,026 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 05:38:16,026 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 05:38:16,026 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 05:38:16,026 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 05:38:16,026 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 05:38:16,026 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 05:38:16,026 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 05:38:16,027 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:38:16,027 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:38:16,027 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:38:16,027 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:38:16,027 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 05:38:16,027 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:38:16,027 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:38:16,028 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:38:16,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:38:16,028 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 05:38:16,028 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 05:38:16,028 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 05:38:16,028 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 05:38:16,028 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 05:38:16,028 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 05:38:16,028 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 05:38:16,028 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 05:38:16,028 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 05:38:16,028 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 05:38:16,029 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 -> 5bba7076723828a76d549dab99f9f19216b374670dd0bb1f48d42a5f4a5ac3a7 [2025-01-09 05:38:16,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 05:38:16,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 05:38:16,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 05:38:16,261 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 05:38:16,261 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 05:38:16,262 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_4+newton_1_7.i [2025-01-09 05:38:17,365 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/654a4be96/e9468ba1f8854720a75c81ba157f4b24/FLAG8a945d162 [2025-01-09 05:38:17,532 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 05:38:17,533 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_4+newton_1_7.i [2025-01-09 05:38:17,538 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/654a4be96/e9468ba1f8854720a75c81ba157f4b24/FLAG8a945d162 [2025-01-09 05:38:17,548 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/654a4be96/e9468ba1f8854720a75c81ba157f4b24 [2025-01-09 05:38:17,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 05:38:17,551 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 05:38:17,552 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 05:38:17,552 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 05:38:17,554 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 05:38:17,555 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:38:17" (1/1) ... [2025-01-09 05:38:17,555 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e70a7cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:17, skipping insertion in model container [2025-01-09 05:38:17,556 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:38:17" (1/1) ... [2025-01-09 05:38:17,566 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 05:38:17,666 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_7.i[1224,1237] [2025-01-09 05:38:17,686 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_7.i[2806,2819] [2025-01-09 05:38:17,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:38:17,696 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 05:38:17,703 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_7.i[1224,1237] [2025-01-09 05:38:17,710 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_7.i[2806,2819] [2025-01-09 05:38:17,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:38:17,723 INFO L204 MainTranslator]: Completed translation [2025-01-09 05:38:17,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:17 WrapperNode [2025-01-09 05:38:17,725 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 05:38:17,726 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 05:38:17,726 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 05:38:17,726 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 05:38:17,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:17" (1/1) ... [2025-01-09 05:38:17,743 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:17" (1/1) ... [2025-01-09 05:38:17,759 INFO L138 Inliner]: procedures = 28, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 74 [2025-01-09 05:38:17,759 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 05:38:17,760 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 05:38:17,760 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 05:38:17,760 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 05:38:17,766 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:17" (1/1) ... [2025-01-09 05:38:17,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:17" (1/1) ... [2025-01-09 05:38:17,768 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:17" (1/1) ... [2025-01-09 05:38:17,778 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 05:38:17,781 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:17" (1/1) ... [2025-01-09 05:38:17,782 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:17" (1/1) ... [2025-01-09 05:38:17,788 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:17" (1/1) ... [2025-01-09 05:38:17,793 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:17" (1/1) ... [2025-01-09 05:38:17,795 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:17" (1/1) ... [2025-01-09 05:38:17,796 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:17" (1/1) ... [2025-01-09 05:38:17,801 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:17" (1/1) ... [2025-01-09 05:38:17,803 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 05:38:17,803 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 05:38:17,803 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 05:38:17,803 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 05:38:17,806 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:17" (1/1) ... [2025-01-09 05:38:17,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:38:17,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 05:38:17,831 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 05:38:17,834 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 05:38:17,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 05:38:17,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 05:38:17,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-09 05:38:17,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 05:38:17,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 05:38:17,853 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 05:38:17,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 05:38:17,907 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 05:38:17,908 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 05:38:29,019 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2025-01-09 05:38:29,020 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 05:38:29,028 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 05:38:29,028 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 05:38:29,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:38:29 BoogieIcfgContainer [2025-01-09 05:38:29,029 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 05:38:29,030 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 05:38:29,030 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 05:38:29,035 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 05:38:29,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:38:17" (1/3) ... [2025-01-09 05:38:29,036 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3231c651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:38:29, skipping insertion in model container [2025-01-09 05:38:29,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:17" (2/3) ... [2025-01-09 05:38:29,036 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3231c651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:38:29, skipping insertion in model container [2025-01-09 05:38:29,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:38:29" (3/3) ... [2025-01-09 05:38:29,038 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_7.i [2025-01-09 05:38:29,053 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 05:38:29,054 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_4+newton_1_7.i that has 2 procedures, 32 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-01-09 05:38:29,090 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 05:38:29,098 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;@777ab31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 05:38:29,099 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 05:38:29,101 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 05:38:29,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-09 05:38:29,105 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:38:29,105 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:38:29,106 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:38:29,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:38:29,109 INFO L85 PathProgramCache]: Analyzing trace with hash 841157774, now seen corresponding path program 1 times [2025-01-09 05:38:29,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 05:38:29,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67410942] [2025-01-09 05:38:29,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:38:29,116 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 05:38:29,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 05:38:29,118 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 05:38:29,119 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 05:38:29,156 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes.