./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/gcd_4+newton_1_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d 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_2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 65d58fd3e8c5638a351c469fc6c6b86b0bc6efe1f0f08d6df11bfe5a3616f3a3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 21:50:13,138 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 21:50:13,192 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 21:50:13,196 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 21:50:13,196 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 21:50:13,217 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 21:50:13,221 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 21:50:13,221 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 21:50:13,222 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 21:50:13,225 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 21:50:13,226 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 21:50:13,226 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 21:50:13,226 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 21:50:13,226 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 21:50:13,226 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 21:50:13,226 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 21:50:13,226 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 21:50:13,226 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 21:50:13,226 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 21:50:13,226 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 21:50:13,226 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 21:50:13,226 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 21:50:13,226 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 21:50:13,226 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 21:50:13,226 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 21:50:13,226 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 21:50:13,227 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 21:50:13,227 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 21:50:13,227 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 21:50:13,227 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 21:50:13,227 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 21:50:13,227 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 21:50:13,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:50:13,227 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 21:50:13,227 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 21:50:13,227 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 21:50:13,227 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 21:50:13,227 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 21:50:13,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 21:50:13,227 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 21:50:13,227 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 21:50:13,227 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 21:50:13,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 21:50:13,227 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 -> 65d58fd3e8c5638a351c469fc6c6b86b0bc6efe1f0f08d6df11bfe5a3616f3a3 [2025-02-07 21:50:13,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 21:50:13,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 21:50:13,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 21:50:13,462 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 21:50:13,462 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 21:50:13,464 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_4+newton_1_2.i [2025-02-07 21:50:14,616 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/159973e7b/01bdfd1e1a19408393416b5565aff807/FLAG0594461ac [2025-02-07 21:50:14,865 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 21:50:14,868 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_4+newton_1_2.i [2025-02-07 21:50:14,895 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/159973e7b/01bdfd1e1a19408393416b5565aff807/FLAG0594461ac [2025-02-07 21:50:14,915 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/159973e7b/01bdfd1e1a19408393416b5565aff807 [2025-02-07 21:50:14,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 21:50:14,918 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 21:50:14,919 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 21:50:14,919 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 21:50:14,921 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 21:50:14,922 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:50:14" (1/1) ... [2025-02-07 21:50:14,922 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79e8ad34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:50:14, skipping insertion in model container [2025-02-07 21:50:14,923 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:50:14" (1/1) ... [2025-02-07 21:50:14,932 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 21:50:15,098 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_2.i[1224,1237] [2025-02-07 21:50:15,139 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_2.i[2806,2819] [2025-02-07 21:50:15,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:50:15,150 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 21:50:15,158 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_2.i[1224,1237] [2025-02-07 21:50:15,166 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_2.i[2806,2819] [2025-02-07 21:50:15,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:50:15,176 INFO L204 MainTranslator]: Completed translation [2025-02-07 21:50:15,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:50:15 WrapperNode [2025-02-07 21:50:15,177 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 21:50:15,178 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 21:50:15,178 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 21:50:15,178 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 21:50:15,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:50:15" (1/1) ... [2025-02-07 21:50:15,186 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:50:15" (1/1) ... [2025-02-07 21:50:15,200 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 77 [2025-02-07 21:50:15,204 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 21:50:15,204 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 21:50:15,204 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 21:50:15,204 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 21:50:15,213 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:50:15" (1/1) ... [2025-02-07 21:50:15,214 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:50:15" (1/1) ... [2025-02-07 21:50:15,218 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:50:15" (1/1) ... [2025-02-07 21:50:15,232 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]. [2025-02-07 21:50:15,233 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:50:15" (1/1) ... [2025-02-07 21:50:15,233 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:50:15" (1/1) ... [2025-02-07 21:50:15,240 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:50:15" (1/1) ... [2025-02-07 21:50:15,240 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:50:15" (1/1) ... [2025-02-07 21:50:15,241 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:50:15" (1/1) ... [2025-02-07 21:50:15,241 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:50:15" (1/1) ... [2025-02-07 21:50:15,242 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 21:50:15,247 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 21:50:15,247 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 21:50:15,247 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 21:50:15,248 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:50:15" (1/1) ... [2025-02-07 21:50:15,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:50:15,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:50:15,279 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) [2025-02-07 21:50:15,281 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 [2025-02-07 21:50:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 21:50:15,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 21:50:15,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-07 21:50:15,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 21:50:15,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 21:50:15,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-07 21:50:15,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-07 21:50:15,350 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 21:50:15,351 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 21:50:15,472 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L64: main1_#res#1 := 0; [2025-02-07 21:50:15,473 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L64-1: SUMMARY for call __VERIFIER_assert((if 9 == main1_~g~0#1 then 1 else 0)); srcloc: null [2025-02-07 21:50:15,473 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L62: SUMMARY for call __VERIFIER_assert((if 0 == (if main1_~x~0#1 < 0 && 0 != main1_~x~0#1 % main1_~g~0#1 then (if main1_~g~0#1 < 0 then main1_~x~0#1 % main1_~g~0#1 + main1_~g~0#1 else main1_~x~0#1 % main1_~g~0#1 - main1_~g~0#1) else main1_~x~0#1 % main1_~g~0#1) then 1 else 0)); srcloc: null [2025-02-07 21:50:15,473 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L60: main1_#t~ret5#1 := gcd_test_#res#1;havoc gcd_test_~a#1, gcd_test_~b#1;havoc gcd_test_#in~a#1, gcd_test_#in~b#1;assume { :end_inline_gcd_test } true;assume -2147483648 <= main1_#t~ret5#1 && main1_#t~ret5#1 <= 2147483647;main1_~g~0#1 := main1_#t~ret5#1;havoc main1_#t~ret5#1; [2025-02-07 21:50:15,473 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L118: main_#t~ret11#1 := main2_#res#1;havoc main2_#t~nondet6#1, main2_#t~ret7#1, main2_#t~ret8#1, main2_~IN~0#1, main2_~x~1#1;assume { :end_inline_main2 } true;assume -2147483648 <= main_#t~ret11#1 && main_#t~ret11#1 <= 2147483647; [2025-02-07 21:50:15,473 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L116: main_#t~ret10#1 := main1_#res#1;havoc main1_#t~ret5#1, main1_~x~0#1, main1_~y~0#1, main1_~g~0#1;assume { :end_inline_main1 } true;assume -2147483648 <= main_#t~ret10#1 && main_#t~ret10#1 <= 2147483647; [2025-02-07 21:50:15,473 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L108: assume !~someBinaryDOUBLEComparisonOperation(main2_~x~1#1, 0.1); [2025-02-07 21:50:15,473 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L108: assume !!~someBinaryDOUBLEComparisonOperation(main2_~x~1#1, 0.1); [2025-02-07 21:50:15,474 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L100: main2_#t~ret8#1 := fp_#res#1;havoc fp_~x#1;havoc fp_#in~x#1;assume { :end_inline_fp } true;main2_~x~1#1 := ~someBinaryArithmeticFLOAToperation(main2_~IN~0#1, ~someBinaryArithmeticFLOAToperation(main2_#t~ret7#1, main2_#t~ret8#1));havoc main2_#t~ret7#1;havoc main2_#t~ret8#1; [2025-02-07 21:50:15,474 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L100-1: main2_#t~ret7#1 := f_#res#1;havoc f_~x#1;havoc f_#in~x#1;assume { :end_inline_f } true;assume { :begin_inline_fp } true;fp_#in~x#1 := main2_~IN~0#1;havoc fp_#res#1;havoc fp_~x#1;fp_~x#1 := fp_#in~x#1;fp_#res#1 := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~convertINTToFLOAT(1), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(fp_~x#1, fp_~x#1), 2.0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(fp_~x#1, fp_~x#1), fp_~x#1), fp_~x#1), 24.0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(fp_~x#1, fp_~x#1), fp_~x#1), fp_~x#1), fp_~x#1), fp_~x#1), 720.0)); [2025-02-07 21:50:15,474 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L-1: #t~ret12#1 := main_#res#1;havoc main_#t~nondet9#1, main_#t~ret10#1, main_#t~ret11#1;assume { :end_inline_main } true; [2025-02-07 21:50:15,474 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L63: SUMMARY for call __VERIFIER_assert((if 0 == (if main1_~y~0#1 < 0 && 0 != main1_~y~0#1 % main1_~g~0#1 then (if main1_~g~0#1 < 0 then main1_~y~0#1 % main1_~g~0#1 + main1_~g~0#1 else main1_~y~0#1 % main1_~g~0#1 - main1_~g~0#1) else main1_~y~0#1 % main1_~g~0#1) then 1 else 0)); srcloc: null [2025-02-07 21:50:15,474 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2025-02-07 21:50:15,474 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L111-1: main2_#res#1 := 0; [2025-02-07 21:50:15,474 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L109: assume false; [2025-02-07 21:50:15,474 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L109: assume !false; [2025-02-07 21:50:15,482 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2025-02-07 21:50:15,482 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 21:50:15,487 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 21:50:15,488 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 21:50:15,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:50:15 BoogieIcfgContainer [2025-02-07 21:50:15,488 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 21:50:15,490 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 21:50:15,490 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 21:50:15,492 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 21:50:15,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 09:50:14" (1/3) ... [2025-02-07 21:50:15,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a5acd89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:50:15, skipping insertion in model container [2025-02-07 21:50:15,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:50:15" (2/3) ... [2025-02-07 21:50:15,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a5acd89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:50:15, skipping insertion in model container [2025-02-07 21:50:15,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:50:15" (3/3) ... [2025-02-07 21:50:15,494 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_2.i [2025-02-07 21:50:15,502 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 21:50:15,503 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_4+newton_1_2.i that has 2 procedures, 18 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-02-07 21:50:15,540 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 21:50:15,550 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;@8176d83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 21:50:15,550 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-07 21:50:15,552 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 21:50:15,555 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-07 21:50:15,556 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-02-07 21:50:15,556 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-02-07 21:50:15,559 INFO L422 BasicCegarLoop]: Path program histogram: [] [2025-02-07 21:50:15,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 21:50:15,569 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 21:50:15,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 09:50:15 BoogieIcfgContainer [2025-02-07 21:50:15,575 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 21:50:15,575 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 21:50:15,575 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 21:50:15,575 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 21:50:15,576 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:50:15" (3/4) ... [2025-02-07 21:50:15,577 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-07 21:50:15,579 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2025-02-07 21:50:15,581 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2025-02-07 21:50:15,581 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-07 21:50:15,582 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-07 21:50:15,582 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-07 21:50:15,582 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-07 21:50:15,630 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-07 21:50:15,631 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-07 21:50:15,634 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 21:50:15,635 INFO L158 Benchmark]: Toolchain (without parser) took 716.95ms. Allocated memory is still 167.8MB. Free memory was 122.7MB in the beginning and 80.9MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-07 21:50:15,635 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 226.5MB. Free memory was 145.8MB in the beginning and 145.5MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:50:15,635 INFO L158 Benchmark]: CACSL2BoogieTranslator took 258.84ms. Allocated memory is still 167.8MB. Free memory was 122.7MB in the beginning and 109.0MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 21:50:15,636 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.79ms. Allocated memory is still 167.8MB. Free memory was 109.0MB in the beginning and 108.0MB in the end (delta: 988.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:50:15,636 INFO L158 Benchmark]: Boogie Preprocessor took 42.38ms. Allocated memory is still 167.8MB. Free memory was 108.0MB in the beginning and 106.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:50:15,636 INFO L158 Benchmark]: IcfgBuilder took 241.14ms. Allocated memory is still 167.8MB. Free memory was 106.0MB in the beginning and 93.7MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 21:50:15,636 INFO L158 Benchmark]: TraceAbstraction took 85.14ms. Allocated memory is still 167.8MB. Free memory was 93.2MB in the beginning and 86.1MB in the end (delta: 7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 21:50:15,636 INFO L158 Benchmark]: Witness Printer took 58.70ms. Allocated memory is still 167.8MB. Free memory was 86.1MB in the beginning and 80.9MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 21:50:15,637 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 226.5MB. Free memory was 145.8MB in the beginning and 145.5MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 258.84ms. Allocated memory is still 167.8MB. Free memory was 122.7MB in the beginning and 109.0MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.79ms. Allocated memory is still 167.8MB. Free memory was 109.0MB in the beginning and 108.0MB in the end (delta: 988.7kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.38ms. Allocated memory is still 167.8MB. Free memory was 108.0MB in the beginning and 106.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 241.14ms. Allocated memory is still 167.8MB. Free memory was 106.0MB in the beginning and 93.7MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 85.14ms. Allocated memory is still 167.8MB. Free memory was 93.2MB in the beginning and 86.1MB in the end (delta: 7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 58.70ms. Allocated memory is still 167.8MB. Free memory was 86.1MB in the beginning and 80.9MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. 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 - PositiveResult [Line: 109]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 27]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, 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=11occurred 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: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-07 21:50:15,654 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 Writing output log to file Ultimate.log Result: TRUE