./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/gcd_3+newton_2_1.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_3+newton_2_1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8b7456a459f55f53693cf2fdc2ecfa85b54010339cb65d2080cc061b58d33cf8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 21:48:15,225 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 21:48:15,281 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 21:48:15,284 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 21:48:15,285 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 21:48:15,298 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 21:48:15,299 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 21:48:15,299 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 21:48:15,299 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 21:48:15,299 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 21:48:15,299 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 21:48:15,299 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 21:48:15,299 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 21:48:15,300 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 21:48:15,300 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 21:48:15,300 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 21:48:15,300 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 21:48:15,300 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 21:48:15,300 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 21:48:15,300 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 21:48:15,300 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 21:48:15,300 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 21:48:15,300 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 21:48:15,300 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 21:48:15,301 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 21:48:15,301 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 21:48:15,301 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 21:48:15,301 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 21:48:15,301 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 21:48:15,301 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 21:48:15,301 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 21:48:15,301 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 21:48:15,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:48:15,301 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 21:48:15,301 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 21:48:15,301 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 21:48:15,302 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 21:48:15,302 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 21:48:15,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 21:48:15,302 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 21:48:15,302 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 21:48:15,302 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 21:48:15,302 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 21:48:15,302 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 -> 8b7456a459f55f53693cf2fdc2ecfa85b54010339cb65d2080cc061b58d33cf8 [2025-02-07 21:48:15,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 21:48:15,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 21:48:15,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 21:48:15,537 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 21:48:15,537 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 21:48:15,538 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_3+newton_2_1.i [2025-02-07 21:48:16,798 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b40935a8f/ea5e4f8cb2cf4b92baa968f0ab296a5b/FLAGb3d776942 [2025-02-07 21:48:17,044 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 21:48:17,044 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_2_1.i [2025-02-07 21:48:17,054 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b40935a8f/ea5e4f8cb2cf4b92baa968f0ab296a5b/FLAGb3d776942 [2025-02-07 21:48:17,071 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b40935a8f/ea5e4f8cb2cf4b92baa968f0ab296a5b [2025-02-07 21:48:17,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 21:48:17,074 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 21:48:17,074 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 21:48:17,074 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 21:48:17,082 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 21:48:17,082 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:48:17" (1/1) ... [2025-02-07 21:48:17,083 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bf97972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:17, skipping insertion in model container [2025-02-07 21:48:17,083 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:48:17" (1/1) ... [2025-02-07 21:48:17,101 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 21:48:17,204 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_2_1.i[1226,1239] [2025-02-07 21:48:17,226 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_2_1.i[2841,2854] [2025-02-07 21:48:17,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:48:17,236 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 21:48:17,245 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_2_1.i[1226,1239] [2025-02-07 21:48:17,254 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_2_1.i[2841,2854] [2025-02-07 21:48:17,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:48:17,264 INFO L204 MainTranslator]: Completed translation [2025-02-07 21:48:17,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:17 WrapperNode [2025-02-07 21:48:17,266 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 21:48:17,266 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 21:48:17,266 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 21:48:17,267 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 21:48:17,271 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:17" (1/1) ... [2025-02-07 21:48:17,277 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:17" (1/1) ... [2025-02-07 21:48:17,291 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 83 [2025-02-07 21:48:17,293 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 21:48:17,294 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 21:48:17,294 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 21:48:17,294 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 21:48:17,299 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:17" (1/1) ... [2025-02-07 21:48:17,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:17" (1/1) ... [2025-02-07 21:48:17,301 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:17" (1/1) ... [2025-02-07 21:48:17,319 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 21:48:17,319 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:17" (1/1) ... [2025-02-07 21:48:17,319 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:17" (1/1) ... [2025-02-07 21:48:17,326 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:17" (1/1) ... [2025-02-07 21:48:17,331 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:17" (1/1) ... [2025-02-07 21:48:17,332 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:17" (1/1) ... [2025-02-07 21:48:17,332 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:17" (1/1) ... [2025-02-07 21:48:17,333 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 21:48:17,334 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 21:48:17,334 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 21:48:17,334 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 21:48:17,335 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:17" (1/1) ... [2025-02-07 21:48:17,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:48:17,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:48:17,379 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 21:48:17,391 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 21:48:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 21:48:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2025-02-07 21:48:17,405 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2025-02-07 21:48:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure f [2025-02-07 21:48:17,405 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2025-02-07 21:48:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 21:48:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-07 21:48:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 21:48:17,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 21:48:17,459 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 21:48:17,461 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 21:48:17,561 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L27: assume false;assume false; [2025-02-07 21:48:17,561 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L27: assume !false; [2025-02-07 21:48:17,561 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56: havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; [2025-02-07 21:48:17,561 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L-1: #t~ret16#1 := main_#res#1;havoc main_#t~nondet13#1, main_#t~ret14#1, main_#t~ret15#1;assume { :end_inline_main } true; [2025-02-07 21:48:17,561 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2025-02-07 21:48:17,561 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L59-1: main1_#res#1 := 0; [2025-02-07 21:48:17,561 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L26: assume 0 == __VERIFIER_assert_~cond#1; [2025-02-07 21:48:17,561 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L26: assume !(0 == __VERIFIER_assert_~cond#1); [2025-02-07 21:48:17,562 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55: assume main1_~x~0#1 > 0;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main1_~x~0#1 >= main1_~g~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; [2025-02-07 21:48:17,562 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55: assume !(main1_~x~0#1 > 0); [2025-02-07 21:48:17,562 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L53: main1_#t~ret7#1 := gcd_test_#res#1;havoc gcd_test_~a#1, gcd_test_~b#1, gcd_test_~t~0#1;havoc gcd_test_#in~a#1, gcd_test_#in~b#1;assume { :end_inline_gcd_test } true;assume -128 <= main1_#t~ret7#1 && main1_#t~ret7#1 <= 127;main1_~g~0#1 := main1_#t~ret7#1;havoc main1_#t~ret7#1; [2025-02-07 21:48:17,562 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L111: main_#t~ret15#1 := main2_#res#1;havoc main2_#t~nondet8#1, main2_#t~ret9#1, main2_#t~ret10#1, main2_#t~ret11#1, main2_#t~ret12#1, main2_~IN~0#1, main2_~x~1#1;assume { :end_inline_main2 } true;assume -2147483648 <= main_#t~ret15#1 && main_#t~ret15#1 <= 2147483647; [2025-02-07 21:48:17,562 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L109: main_#t~ret14#1 := main1_#res#1;havoc main1_#t~nondet5#1, main1_#t~nondet6#1, main1_#t~ret7#1, main1_~x~0#1, main1_~y~0#1, main1_~g~0#1;assume { :end_inline_main1 } true;assume -2147483648 <= main_#t~ret14#1 && main_#t~ret14#1 <= 2147483647; [2025-02-07 21:48:17,581 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2025-02-07 21:48:17,581 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 21:48:17,590 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 21:48:17,590 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 21:48:17,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:48:17 BoogieIcfgContainer [2025-02-07 21:48:17,590 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 21:48:17,592 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 21:48:17,592 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 21:48:17,595 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 21:48:17,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 09:48:17" (1/3) ... [2025-02-07 21:48:17,595 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2319a0a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:48:17, skipping insertion in model container [2025-02-07 21:48:17,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:17" (2/3) ... [2025-02-07 21:48:17,595 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2319a0a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:48:17, skipping insertion in model container [2025-02-07 21:48:17,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:48:17" (3/3) ... [2025-02-07 21:48:17,596 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_2_1.i [2025-02-07 21:48:17,605 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 21:48:17,606 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_3+newton_2_1.i that has 3 procedures, 26 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-02-07 21:48:17,640 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 21:48:17,647 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;@18d1921, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 21:48:17,647 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-07 21:48:17,649 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 16 states have (on average 1.4375) internal successors, (23), 18 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-07 21:48:17,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-02-07 21:48:17,653 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:48:17,653 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 21:48:17,654 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:48:17,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:48:17,657 INFO L85 PathProgramCache]: Analyzing trace with hash -456046533, now seen corresponding path program 1 times [2025-02-07 21:48:17,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:48:17,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619309606] [2025-02-07 21:48:17,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:48:17,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:48:17,706 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-07 21:48:17,715 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-07 21:48:17,715 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:48:17,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:48:17,738 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-07 21:48:17,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 21:48:17,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619309606] [2025-02-07 21:48:17,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619309606] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 21:48:17,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 21:48:17,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 21:48:17,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488520993] [2025-02-07 21:48:17,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 21:48:17,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 21:48:17,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 21:48:17,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 21:48:17,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 21:48:17,754 INFO L87 Difference]: Start difference. First operand has 25 states, 16 states have (on average 1.4375) internal successors, (23), 18 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-07 21:48:17,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:48:17,766 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2025-02-07 21:48:17,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 21:48:17,767 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 24 [2025-02-07 21:48:17,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:48:17,772 INFO L225 Difference]: With dead ends: 43 [2025-02-07 21:48:17,772 INFO L226 Difference]: Without dead ends: 19 [2025-02-07 21:48:17,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 21:48:17,776 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-07 21:48:17,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-07 21:48:17,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2025-02-07 21:48:17,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2025-02-07 21:48:17,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.0) internal successors, (12), 12 states have internal predecessors, (12), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-07 21:48:17,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2025-02-07 21:48:17,796 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 24 [2025-02-07 21:48:17,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:48:17,797 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2025-02-07 21:48:17,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-07 21:48:17,797 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2025-02-07 21:48:17,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-02-07 21:48:17,798 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:48:17,798 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 21:48:17,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 21:48:17,798 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:48:17,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:48:17,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1800864474, now seen corresponding path program 1 times [2025-02-07 21:48:17,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:48:17,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081094379] [2025-02-07 21:48:17,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:48:17,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:48:17,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-07 21:48:17,821 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-07 21:48:17,821 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:48:17,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 21:48:17,821 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-07 21:48:17,823 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-07 21:48:17,829 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-07 21:48:17,829 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:48:17,829 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 21:48:17,840 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-07 21:48:17,842 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-07 21:48:17,843 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-02-07 21:48:17,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-02-07 21:48:17,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-07 21:48:17,848 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-07 21:48:17,861 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 21:48:17,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 09:48:17 BoogieIcfgContainer [2025-02-07 21:48:17,864 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 21:48:17,865 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 21:48:17,865 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 21:48:17,865 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 21:48:17,866 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:48:17" (3/4) ... [2025-02-07 21:48:17,867 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-07 21:48:17,869 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 21:48:17,870 INFO L158 Benchmark]: Toolchain (without parser) took 795.61ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 61.3MB in the end (delta: 50.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-07 21:48:17,870 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:48:17,870 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.50ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 100.3MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 21:48:17,871 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.68ms. Allocated memory is still 142.6MB. Free memory was 100.3MB in the beginning and 98.7MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 21:48:17,871 INFO L158 Benchmark]: Boogie Preprocessor took 39.82ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 97.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:48:17,871 INFO L158 Benchmark]: IcfgBuilder took 256.31ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 83.5MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 21:48:17,871 INFO L158 Benchmark]: TraceAbstraction took 272.45ms. Allocated memory is still 142.6MB. Free memory was 82.6MB in the beginning and 61.8MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 21:48:17,872 INFO L158 Benchmark]: Witness Printer took 3.81ms. Allocated memory is still 142.6MB. Free memory was 61.8MB in the beginning and 61.3MB in the end (delta: 482.4kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:48:17,873 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 201.3MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 191.50ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 100.3MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.68ms. Allocated memory is still 142.6MB. Free memory was 100.3MB in the beginning and 98.7MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.82ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 97.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 256.31ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 83.5MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 272.45ms. Allocated memory is still 142.6MB. Free memory was 82.6MB in the beginning and 61.8MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.81ms. Allocated memory is still 142.6MB. Free memory was 61.8MB in the beginning and 61.3MB in the end (delta: 482.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 102]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 93, overapproximation of someBinaryArithmeticFLOAToperation at line 95, overapproximation of someBinaryArithmeticFLOAToperation at line 85, overapproximation of someBinaryArithmeticFLOAToperation at line 80. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -0.2f && IN < 0.2f) [L75] COND FALSE !(!cond) [L91] RET assume_abort_if_not(IN > -0.2f && IN < 0.2f) [L93] CALL, EXPR f(IN) VAL [\old(x)=110] [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=110] [L93] RET, EXPR f(IN) VAL [IN=110] [L93] CALL, EXPR fp(IN) VAL [\old(x)=110] [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=110] [L93] RET, EXPR fp(IN) VAL [IN=110] [L93] float x = IN - f(IN)/fp(IN); [L95] CALL, EXPR f(x) VAL [\old(x)=111] [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=111] [L95] RET, EXPR f(x) VAL [IN=110, x=111] [L95] CALL, EXPR fp(x) VAL [\old(x)=111] [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=111] [L95] RET, EXPR fp(x) VAL [IN=110, x=111] [L95] x = x - f(x)/fp(x) [L101] COND TRUE !(x < 0.1) VAL [IN=110] [L102] reach_error() VAL [IN=110] - 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 3 procedures, 26 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 29 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 6/6 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 [2025-02-07 21:48:17,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/gcd_3+newton_2_1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8b7456a459f55f53693cf2fdc2ecfa85b54010339cb65d2080cc061b58d33cf8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 21:48:19,917 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 21:48:20,012 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-07 21:48:20,020 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 21:48:20,020 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 21:48:20,042 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 21:48:20,043 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 21:48:20,044 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 21:48:20,044 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 21:48:20,044 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 21:48:20,045 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 21:48:20,045 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 21:48:20,045 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 21:48:20,045 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 21:48:20,045 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 21:48:20,045 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 21:48:20,046 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 21:48:20,047 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 21:48:20,047 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 21:48:20,047 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 21:48:20,047 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 21:48:20,047 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 21:48:20,047 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 21:48:20,047 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-07 21:48:20,047 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-07 21:48:20,047 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-07 21:48:20,047 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 21:48:20,047 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 21:48:20,047 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 21:48:20,047 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 21:48:20,048 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 21:48:20,048 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 21:48:20,048 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 21:48:20,048 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 21:48:20,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:48:20,048 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 21:48:20,048 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 21:48:20,049 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 21:48:20,049 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 21:48:20,049 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-07 21:48:20,049 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-07 21:48:20,049 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 21:48:20,049 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 21:48:20,049 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 21:48:20,049 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 21:48:20,049 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 -> 8b7456a459f55f53693cf2fdc2ecfa85b54010339cb65d2080cc061b58d33cf8 [2025-02-07 21:48:20,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 21:48:20,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 21:48:20,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 21:48:20,342 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 21:48:20,342 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 21:48:20,343 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_3+newton_2_1.i [2025-02-07 21:48:21,615 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/394487053/26cc3f83b3e447d2ba6742b5ea96ddf0/FLAG618e4b76e [2025-02-07 21:48:21,851 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 21:48:21,852 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_2_1.i [2025-02-07 21:48:21,862 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/394487053/26cc3f83b3e447d2ba6742b5ea96ddf0/FLAG618e4b76e [2025-02-07 21:48:22,194 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/394487053/26cc3f83b3e447d2ba6742b5ea96ddf0 [2025-02-07 21:48:22,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 21:48:22,196 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 21:48:22,197 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 21:48:22,197 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 21:48:22,200 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 21:48:22,201 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:48:22" (1/1) ... [2025-02-07 21:48:22,201 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@490d5fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:22, skipping insertion in model container [2025-02-07 21:48:22,202 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:48:22" (1/1) ... [2025-02-07 21:48:22,212 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 21:48:22,296 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_2_1.i[1226,1239] [2025-02-07 21:48:22,327 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_2_1.i[2841,2854] [2025-02-07 21:48:22,328 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:48:22,341 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 21:48:22,352 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_2_1.i[1226,1239] [2025-02-07 21:48:22,363 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_2_1.i[2841,2854] [2025-02-07 21:48:22,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:48:22,374 INFO L204 MainTranslator]: Completed translation [2025-02-07 21:48:22,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:22 WrapperNode [2025-02-07 21:48:22,375 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 21:48:22,376 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 21:48:22,376 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 21:48:22,376 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 21:48:22,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:22" (1/1) ... [2025-02-07 21:48:22,385 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:22" (1/1) ... [2025-02-07 21:48:22,397 INFO L138 Inliner]: procedures = 28, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 78 [2025-02-07 21:48:22,397 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 21:48:22,397 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 21:48:22,397 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 21:48:22,397 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 21:48:22,402 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:22" (1/1) ... [2025-02-07 21:48:22,402 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:22" (1/1) ... [2025-02-07 21:48:22,404 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:22" (1/1) ... [2025-02-07 21:48:22,412 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 21:48:22,413 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:22" (1/1) ... [2025-02-07 21:48:22,413 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:22" (1/1) ... [2025-02-07 21:48:22,421 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:22" (1/1) ... [2025-02-07 21:48:22,425 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:22" (1/1) ... [2025-02-07 21:48:22,426 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:22" (1/1) ... [2025-02-07 21:48:22,427 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:22" (1/1) ... [2025-02-07 21:48:22,428 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 21:48:22,429 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 21:48:22,429 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 21:48:22,429 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 21:48:22,434 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:22" (1/1) ... [2025-02-07 21:48:22,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:48:22,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:48:22,465 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 21:48:22,474 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 21:48:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 21:48:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-07 21:48:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-07 21:48:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2025-02-07 21:48:22,492 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2025-02-07 21:48:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure f [2025-02-07 21:48:22,492 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2025-02-07 21:48:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 21:48:22,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 21:48:22,549 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 21:48:22,550 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 21:48:30,713 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L27: assume false;assume false; [2025-02-07 21:48:30,713 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L27: assume !false; [2025-02-07 21:48:30,713 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56: havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; [2025-02-07 21:48:30,713 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L-1: #t~ret16#1 := main_#res#1;havoc main_#t~nondet13#1, main_#t~ret14#1, main_#t~ret15#1;assume { :end_inline_main } true; [2025-02-07 21:48:30,714 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2025-02-07 21:48:30,714 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L59-1: main1_#res#1 := 0bv32; [2025-02-07 21:48:30,714 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L26: assume 0bv32 == __VERIFIER_assert_~cond#1; [2025-02-07 21:48:30,714 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L26: assume !(0bv32 == __VERIFIER_assert_~cond#1); [2025-02-07 21:48:30,714 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55: assume ~bvsgt~32(~sign_extend~32~8(main1_~x~0#1), 0bv32);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if ~bvsge~32(~sign_extend~32~8(main1_~x~0#1), ~sign_extend~32~8(main1_~g~0#1)) then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; [2025-02-07 21:48:30,714 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55: assume !~bvsgt~32(~sign_extend~32~8(main1_~x~0#1), 0bv32); [2025-02-07 21:48:30,715 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L53: main1_#t~ret7#1 := gcd_test_#res#1;havoc gcd_test_~a#1, gcd_test_~b#1, gcd_test_~t~0#1;havoc gcd_test_#in~a#1, gcd_test_#in~b#1;assume { :end_inline_gcd_test } true;main1_~g~0#1 := main1_#t~ret7#1;havoc main1_#t~ret7#1; [2025-02-07 21:48:30,715 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L111: main_#t~ret15#1 := main2_#res#1;havoc main2_#t~nondet8#1, main2_#t~ret9#1, main2_#t~ret10#1, main2_#t~ret11#1, main2_#t~ret12#1, main2_~IN~0#1, main2_~x~1#1;assume { :end_inline_main2 } true; [2025-02-07 21:48:30,715 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L109: main_#t~ret14#1 := main1_#res#1;havoc main1_#t~nondet5#1, main1_#t~nondet6#1, main1_#t~ret7#1, main1_~x~0#1, main1_~y~0#1, main1_~g~0#1;assume { :end_inline_main1 } true; [2025-02-07 21:48:34,809 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2025-02-07 21:48:34,809 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 21:48:34,817 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 21:48:34,818 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 21:48:34,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:48:34 BoogieIcfgContainer [2025-02-07 21:48:34,818 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 21:48:34,820 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 21:48:34,820 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 21:48:34,823 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 21:48:34,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 09:48:22" (1/3) ... [2025-02-07 21:48:34,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba9c3b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:48:34, skipping insertion in model container [2025-02-07 21:48:34,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:48:22" (2/3) ... [2025-02-07 21:48:34,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba9c3b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:48:34, skipping insertion in model container [2025-02-07 21:48:34,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:48:34" (3/3) ... [2025-02-07 21:48:34,825 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_2_1.i [2025-02-07 21:48:34,834 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 21:48:34,835 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_3+newton_2_1.i that has 3 procedures, 26 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-02-07 21:48:34,874 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 21:48:34,881 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;@6ad67ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 21:48:34,882 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-07 21:48:34,884 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 16 states have (on average 1.4375) internal successors, (23), 18 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-07 21:48:34,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-02-07 21:48:34,887 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:48:34,888 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 21:48:34,888 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:48:34,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:48:34,891 INFO L85 PathProgramCache]: Analyzing trace with hash -456046533, now seen corresponding path program 1 times [2025-02-07 21:48:34,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 21:48:34,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1598486225] [2025-02-07 21:48:34,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:48:34,900 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 [2025-02-07 21:48:34,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 21:48:34,901 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) [2025-02-07 21:48:34,903 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 [2025-02-07 21:48:34,951 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-07 21:48:36,520 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-07 21:48:36,521 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:48:36,521 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:48:36,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-07 21:48:36,584 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 21:48:36,606 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-07 21:48:36,607 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 21:48:36,607 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 21:48:36,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1598486225] [2025-02-07 21:48:36,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1598486225] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 21:48:36,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 21:48:36,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 21:48:36,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125802983] [2025-02-07 21:48:36,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 21:48:36,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 21:48:36,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 21:48:36,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 21:48:36,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 21:48:36,627 INFO L87 Difference]: Start difference. First operand has 25 states, 16 states have (on average 1.4375) internal successors, (23), 18 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-07 21:48:36,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:48:36,635 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2025-02-07 21:48:36,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 21:48:36,636 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 24 [2025-02-07 21:48:36,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:48:36,639 INFO L225 Difference]: With dead ends: 43 [2025-02-07 21:48:36,640 INFO L226 Difference]: Without dead ends: 19 [2025-02-07 21:48:36,641 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 21:48:36,643 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-07 21:48:36,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-07 21:48:36,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2025-02-07 21:48:36,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2025-02-07 21:48:36,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.0) internal successors, (12), 12 states have internal predecessors, (12), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-07 21:48:36,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2025-02-07 21:48:36,661 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 24 [2025-02-07 21:48:36,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:48:36,661 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2025-02-07 21:48:36,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-07 21:48:36,662 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2025-02-07 21:48:36,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-02-07 21:48:36,678 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:48:36,678 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 21:48:36,723 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2025-02-07 21:48:36,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-07 21:48:36,879 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:48:36,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:48:36,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1800864474, now seen corresponding path program 1 times [2025-02-07 21:48:36,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 21:48:36,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1104585098] [2025-02-07 21:48:36,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:48:36,880 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 [2025-02-07 21:48:36,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 21:48:36,882 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-02-07 21:48:36,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-02-07 21:48:36,910 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes.