./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/gcd_2+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_2+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 2f8505e46ba1dfd9d1ec3a293aaba2f619b40b1a80d91e8d871194a57c70c939 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 21:46:13,204 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 21:46:13,263 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 21:46:13,266 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 21:46:13,269 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 21:46:13,287 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 21:46:13,288 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 21:46:13,289 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 21:46:13,289 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 21:46:13,289 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 21:46:13,290 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 21:46:13,290 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 21:46:13,290 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 21:46:13,290 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 21:46:13,290 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 21:46:13,291 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 21:46:13,291 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 21:46:13,291 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 21:46:13,291 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 21:46:13,291 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 21:46:13,291 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 21:46:13,291 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 21:46:13,291 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 21:46:13,291 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 21:46:13,291 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 21:46:13,292 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 21:46:13,292 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 21:46:13,292 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 21:46:13,292 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 21:46:13,292 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 21:46:13,292 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 21:46:13,292 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 21:46:13,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:46:13,293 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 21:46:13,293 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 21:46:13,293 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 21:46:13,293 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 21:46:13,293 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 21:46:13,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 21:46:13,293 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 21:46:13,293 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 21:46:13,293 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 21:46:13,293 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 21:46:13,293 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 -> 2f8505e46ba1dfd9d1ec3a293aaba2f619b40b1a80d91e8d871194a57c70c939 [2025-02-07 21:46:13,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 21:46:13,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 21:46:13,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 21:46:13,524 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 21:46:13,525 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 21:46:13,526 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_2+newton_2_1.i [2025-02-07 21:46:14,645 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/deee6ef1d/ccfe0527c0604233a1cee81a1a739aca/FLAG418804346 [2025-02-07 21:46:14,856 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 21:46:14,856 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_2+newton_2_1.i [2025-02-07 21:46:14,865 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/deee6ef1d/ccfe0527c0604233a1cee81a1a739aca/FLAG418804346 [2025-02-07 21:46:15,213 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/deee6ef1d/ccfe0527c0604233a1cee81a1a739aca [2025-02-07 21:46:15,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 21:46:15,216 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 21:46:15,217 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 21:46:15,217 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 21:46:15,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 21:46:15,220 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:46:15" (1/1) ... [2025-02-07 21:46:15,222 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d36fc0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:15, skipping insertion in model container [2025-02-07 21:46:15,222 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:46:15" (1/1) ... [2025-02-07 21:46:15,233 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 21:46:15,322 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_2+newton_2_1.i[1226,1239] [2025-02-07 21:46:15,336 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_2+newton_2_1.i[2841,2854] [2025-02-07 21:46:15,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:46:15,344 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 21:46:15,353 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_2+newton_2_1.i[1226,1239] [2025-02-07 21:46:15,360 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_2+newton_2_1.i[2841,2854] [2025-02-07 21:46:15,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:46:15,370 INFO L204 MainTranslator]: Completed translation [2025-02-07 21:46:15,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:15 WrapperNode [2025-02-07 21:46:15,370 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 21:46:15,371 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 21:46:15,371 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 21:46:15,371 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 21:46:15,375 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:15" (1/1) ... [2025-02-07 21:46:15,385 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:15" (1/1) ... [2025-02-07 21:46:15,402 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 83 [2025-02-07 21:46:15,404 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 21:46:15,404 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 21:46:15,404 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 21:46:15,404 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 21:46:15,410 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:15" (1/1) ... [2025-02-07 21:46:15,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:15" (1/1) ... [2025-02-07 21:46:15,414 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:15" (1/1) ... [2025-02-07 21:46:15,426 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 21:46:15,427 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:15" (1/1) ... [2025-02-07 21:46:15,427 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:15" (1/1) ... [2025-02-07 21:46:15,431 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:15" (1/1) ... [2025-02-07 21:46:15,435 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:15" (1/1) ... [2025-02-07 21:46:15,435 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:15" (1/1) ... [2025-02-07 21:46:15,436 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:15" (1/1) ... [2025-02-07 21:46:15,437 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 21:46:15,441 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 21:46:15,441 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 21:46:15,441 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 21:46:15,442 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:15" (1/1) ... [2025-02-07 21:46:15,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:46:15,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:46:15,468 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 21:46:15,474 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 21:46:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 21:46:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2025-02-07 21:46:15,489 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2025-02-07 21:46:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure f [2025-02-07 21:46:15,489 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2025-02-07 21:46:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 21:46:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-07 21:46:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 21:46:15,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 21:46:15,534 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 21:46:15,536 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 21:46:15,665 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L27: assume false;assume false; [2025-02-07 21:46:15,665 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L27: assume !false; [2025-02-07 21:46:15,665 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 21:46:15,665 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 21:46:15,665 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2025-02-07 21:46:15,665 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L59-1: main1_#res#1 := 0; [2025-02-07 21:46:15,666 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L26: assume 0 == __VERIFIER_assert_~cond#1; [2025-02-07 21:46:15,666 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L26: assume !(0 == __VERIFIER_assert_~cond#1); [2025-02-07 21:46:15,666 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55: assume main1_~y~0#1 > 0;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main1_~y~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 21:46:15,666 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55: assume !(main1_~y~0#1 > 0); [2025-02-07 21:46:15,666 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 21:46:15,666 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 21:46:15,666 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 21:46:15,690 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2025-02-07 21:46:15,690 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 21:46:15,697 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 21:46:15,697 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 21:46:15,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:46:15 BoogieIcfgContainer [2025-02-07 21:46:15,697 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 21:46:15,699 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 21:46:15,699 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 21:46:15,702 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 21:46:15,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 09:46:15" (1/3) ... [2025-02-07 21:46:15,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690ef7b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:46:15, skipping insertion in model container [2025-02-07 21:46:15,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:15" (2/3) ... [2025-02-07 21:46:15,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690ef7b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:46:15, skipping insertion in model container [2025-02-07 21:46:15,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:46:15" (3/3) ... [2025-02-07 21:46:15,704 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_2_1.i [2025-02-07 21:46:15,713 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 21:46:15,715 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_2+newton_2_1.i that has 3 procedures, 26 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-02-07 21:46:15,744 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 21:46:15,753 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;@61fe73e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 21:46:15,753 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-07 21:46:15,756 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 21:46:15,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-02-07 21:46:15,761 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:46:15,761 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 21:46:15,762 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:46:15,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:46:15,765 INFO L85 PathProgramCache]: Analyzing trace with hash -456046533, now seen corresponding path program 1 times [2025-02-07 21:46:15,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:46:15,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601202720] [2025-02-07 21:46:15,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:46:15,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:46:15,821 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-07 21:46:15,833 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-07 21:46:15,833 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:46:15,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:46:15,878 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 21:46:15,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 21:46:15,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601202720] [2025-02-07 21:46:15,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601202720] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 21:46:15,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 21:46:15,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 21:46:15,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086432064] [2025-02-07 21:46:15,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 21:46:15,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 21:46:15,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 21:46:15,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 21:46:15,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 21:46:15,911 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 21:46:15,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:46:15,924 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2025-02-07 21:46:15,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 21:46:15,925 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 21:46:15,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:46:15,930 INFO L225 Difference]: With dead ends: 43 [2025-02-07 21:46:15,930 INFO L226 Difference]: Without dead ends: 19 [2025-02-07 21:46:15,934 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 21:46:15,936 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 21:46:15,937 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 21:46:15,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2025-02-07 21:46:15,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2025-02-07 21:46:15,958 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 21:46:15,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2025-02-07 21:46:15,963 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 24 [2025-02-07 21:46:15,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:46:15,963 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2025-02-07 21:46:15,964 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 21:46:15,964 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2025-02-07 21:46:15,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-02-07 21:46:15,964 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:46:15,965 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 21:46:15,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 21:46:15,965 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:46:15,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:46:15,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1800864474, now seen corresponding path program 1 times [2025-02-07 21:46:15,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:46:15,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249308234] [2025-02-07 21:46:15,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:46:15,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:46:15,978 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-07 21:46:15,991 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-07 21:46:15,992 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:46:15,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 21:46:15,992 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-07 21:46:15,996 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-07 21:46:16,006 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-07 21:46:16,006 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:46:16,006 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 21:46:16,020 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-07 21:46:16,021 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-07 21:46:16,022 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-02-07 21:46:16,023 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-02-07 21:46:16,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-07 21:46:16,025 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-07 21:46:16,036 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 21:46:16,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 09:46:16 BoogieIcfgContainer [2025-02-07 21:46:16,038 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 21:46:16,039 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 21:46:16,039 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 21:46:16,039 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 21:46:16,039 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:46:15" (3/4) ... [2025-02-07 21:46:16,041 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-07 21:46:16,041 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 21:46:16,042 INFO L158 Benchmark]: Toolchain (without parser) took 826.02ms. Allocated memory is still 142.6MB. Free memory was 113.0MB in the beginning and 61.8MB in the end (delta: 51.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-02-07 21:46:16,042 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 226.5MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:46:16,042 INFO L158 Benchmark]: CACSL2BoogieTranslator took 153.64ms. Allocated memory is still 142.6MB. Free memory was 113.0MB in the beginning and 101.4MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 21:46:16,042 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.04ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 99.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:46:16,043 INFO L158 Benchmark]: Boogie Preprocessor took 36.20ms. Allocated memory is still 142.6MB. Free memory was 99.6MB in the beginning and 98.4MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 21:46:16,043 INFO L158 Benchmark]: IcfgBuilder took 256.48ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 84.0MB in the end (delta: 13.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 21:46:16,043 INFO L158 Benchmark]: TraceAbstraction took 339.21ms. Allocated memory is still 142.6MB. Free memory was 83.4MB in the beginning and 62.4MB in the end (delta: 21.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-07 21:46:16,043 INFO L158 Benchmark]: Witness Printer took 2.77ms. Allocated memory is still 142.6MB. Free memory was 62.4MB in the beginning and 61.8MB in the end (delta: 589.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:46:16,044 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 226.5MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 153.64ms. Allocated memory is still 142.6MB. Free memory was 113.0MB in the beginning and 101.4MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.04ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 99.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.20ms. Allocated memory is still 142.6MB. Free memory was 99.6MB in the beginning and 98.4MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 256.48ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 84.0MB in the end (delta: 13.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 339.21ms. Allocated memory is still 142.6MB. Free memory was 83.4MB in the beginning and 62.4MB in the end (delta: 21.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 2.77ms. Allocated memory is still 142.6MB. Free memory was 62.4MB in the beginning and 61.8MB in the end (delta: 589.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 102]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 85, overapproximation of someBinaryArithmeticFLOAToperation at line 95, overapproximation of someBinaryArithmeticFLOAToperation at line 80, overapproximation of someBinaryArithmeticFLOAToperation at line 93. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -0.2f && 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: 0.3s, 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 21:46:16,059 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_2+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 2f8505e46ba1dfd9d1ec3a293aaba2f619b40b1a80d91e8d871194a57c70c939 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 21:46:17,883 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 21:46:17,973 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-07 21:46:17,980 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 21:46:17,980 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 21:46:18,000 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 21:46:18,001 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 21:46:18,001 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 21:46:18,001 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 21:46:18,001 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 21:46:18,001 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 21:46:18,002 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 21:46:18,002 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 21:46:18,002 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 21:46:18,002 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 21:46:18,003 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 21:46:18,003 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 21:46:18,003 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 21:46:18,003 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 21:46:18,003 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 21:46:18,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 21:46:18,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 21:46:18,004 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 21:46:18,004 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-07 21:46:18,004 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-07 21:46:18,004 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-07 21:46:18,004 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 21:46:18,004 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 21:46:18,004 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 21:46:18,004 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 21:46:18,004 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 21:46:18,005 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 21:46:18,005 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 21:46:18,005 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 21:46:18,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:46:18,005 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 21:46:18,005 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 21:46:18,005 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 21:46:18,006 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 21:46:18,006 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-07 21:46:18,006 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-07 21:46:18,006 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 21:46:18,006 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 21:46:18,006 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 21:46:18,006 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 21:46:18,006 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 -> 2f8505e46ba1dfd9d1ec3a293aaba2f619b40b1a80d91e8d871194a57c70c939 [2025-02-07 21:46:18,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 21:46:18,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 21:46:18,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 21:46:18,241 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 21:46:18,242 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 21:46:18,244 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_2+newton_2_1.i [2025-02-07 21:46:19,423 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/68f624eca/f6c1233e96c44b55afebc111dd9c56c8/FLAG31645dcd7 [2025-02-07 21:46:19,593 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 21:46:19,594 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_2+newton_2_1.i [2025-02-07 21:46:19,600 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/68f624eca/f6c1233e96c44b55afebc111dd9c56c8/FLAG31645dcd7 [2025-02-07 21:46:19,992 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/68f624eca/f6c1233e96c44b55afebc111dd9c56c8 [2025-02-07 21:46:19,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 21:46:19,997 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 21:46:19,998 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 21:46:19,999 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 21:46:20,002 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 21:46:20,003 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:46:19" (1/1) ... [2025-02-07 21:46:20,004 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25f76c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:20, skipping insertion in model container [2025-02-07 21:46:20,004 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:46:19" (1/1) ... [2025-02-07 21:46:20,017 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 21:46:20,122 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_2+newton_2_1.i[1226,1239] [2025-02-07 21:46:20,146 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_2+newton_2_1.i[2841,2854] [2025-02-07 21:46:20,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:46:20,161 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 21:46:20,171 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_2+newton_2_1.i[1226,1239] [2025-02-07 21:46:20,183 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_2+newton_2_1.i[2841,2854] [2025-02-07 21:46:20,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:46:20,198 INFO L204 MainTranslator]: Completed translation [2025-02-07 21:46:20,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:20 WrapperNode [2025-02-07 21:46:20,199 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 21:46:20,199 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 21:46:20,199 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 21:46:20,200 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 21:46:20,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:20" (1/1) ... [2025-02-07 21:46:20,212 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:20" (1/1) ... [2025-02-07 21:46:20,224 INFO L138 Inliner]: procedures = 28, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 78 [2025-02-07 21:46:20,227 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 21:46:20,227 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 21:46:20,227 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 21:46:20,227 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 21:46:20,233 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:20" (1/1) ... [2025-02-07 21:46:20,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:20" (1/1) ... [2025-02-07 21:46:20,236 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:20" (1/1) ... [2025-02-07 21:46:20,249 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 21:46:20,250 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:20" (1/1) ... [2025-02-07 21:46:20,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:20" (1/1) ... [2025-02-07 21:46:20,254 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:20" (1/1) ... [2025-02-07 21:46:20,258 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:20" (1/1) ... [2025-02-07 21:46:20,259 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:20" (1/1) ... [2025-02-07 21:46:20,260 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:20" (1/1) ... [2025-02-07 21:46:20,261 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 21:46:20,266 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 21:46:20,266 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 21:46:20,266 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 21:46:20,267 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:20" (1/1) ... [2025-02-07 21:46:20,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:46:20,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:46:20,293 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 21:46:20,296 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 21:46:20,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 21:46:20,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-07 21:46:20,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-07 21:46:20,314 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2025-02-07 21:46:20,315 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2025-02-07 21:46:20,315 INFO L130 BoogieDeclarations]: Found specification of procedure f [2025-02-07 21:46:20,315 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2025-02-07 21:46:20,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 21:46:20,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 21:46:20,373 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 21:46:20,374 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 21:46:28,142 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L27: assume false;assume false; [2025-02-07 21:46:28,142 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L27: assume !false; [2025-02-07 21:46:28,142 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 21:46:28,142 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 21:46:28,142 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2025-02-07 21:46:28,142 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L59-1: main1_#res#1 := 0bv32; [2025-02-07 21:46:28,143 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L26: assume 0bv32 == __VERIFIER_assert_~cond#1; [2025-02-07 21:46:28,143 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L26: assume !(0bv32 == __VERIFIER_assert_~cond#1); [2025-02-07 21:46:28,143 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55: assume ~bvsgt~32(~sign_extend~32~8(main1_~y~0#1), 0bv32);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if ~bvsge~32(~sign_extend~32~8(main1_~y~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 21:46:28,143 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55: assume !~bvsgt~32(~sign_extend~32~8(main1_~y~0#1), 0bv32); [2025-02-07 21:46:28,143 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 21:46:28,143 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 21:46:28,143 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 21:46:32,225 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2025-02-07 21:46:32,225 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 21:46:32,230 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 21:46:32,230 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 21:46:32,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:46:32 BoogieIcfgContainer [2025-02-07 21:46:32,231 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 21:46:32,233 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 21:46:32,233 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 21:46:32,235 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 21:46:32,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 09:46:19" (1/3) ... [2025-02-07 21:46:32,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb75cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:46:32, skipping insertion in model container [2025-02-07 21:46:32,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:46:20" (2/3) ... [2025-02-07 21:46:32,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb75cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:46:32, skipping insertion in model container [2025-02-07 21:46:32,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:46:32" (3/3) ... [2025-02-07 21:46:32,237 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_2_1.i [2025-02-07 21:46:32,245 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 21:46:32,246 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_2+newton_2_1.i that has 3 procedures, 26 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-02-07 21:46:32,279 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 21:46:32,286 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;@27e9dab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 21:46:32,287 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-07 21:46:32,289 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 21:46:32,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-02-07 21:46:32,293 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:46:32,293 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 21:46:32,293 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:46:32,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:46:32,296 INFO L85 PathProgramCache]: Analyzing trace with hash -456046533, now seen corresponding path program 1 times [2025-02-07 21:46:32,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 21:46:32,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1166375503] [2025-02-07 21:46:32,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:46:32,302 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 21:46:32,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 21:46:32,304 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 21:46:32,305 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 21:46:32,344 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-07 21:46:33,992 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-07 21:46:33,992 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:46:33,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:46:34,056 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-07 21:46:34,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 21:46:34,083 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 21:46:34,100 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 21:46:34,101 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 21:46:34,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1166375503] [2025-02-07 21:46:34,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1166375503] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 21:46:34,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 21:46:34,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 21:46:34,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209036386] [2025-02-07 21:46:34,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 21:46:34,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 21:46:34,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 21:46:34,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 21:46:34,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 21:46:34,123 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 21:46:34,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:46:34,142 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2025-02-07 21:46:34,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 21:46:34,144 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 21:46:34,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:46:34,150 INFO L225 Difference]: With dead ends: 43 [2025-02-07 21:46:34,150 INFO L226 Difference]: Without dead ends: 19 [2025-02-07 21:46:34,153 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 21:46:34,157 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 21:46:34,162 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 21:46:34,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2025-02-07 21:46:34,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2025-02-07 21:46:34,218 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 21:46:34,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2025-02-07 21:46:34,223 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 24 [2025-02-07 21:46:34,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:46:34,224 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2025-02-07 21:46:34,224 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 21:46:34,224 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2025-02-07 21:46:34,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-02-07 21:46:34,226 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:46:34,226 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 21:46:34,279 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 21:46:34,427 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 21:46:34,429 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:46:34,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:46:34,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1800864474, now seen corresponding path program 1 times [2025-02-07 21:46:34,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 21:46:34,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [303067362] [2025-02-07 21:46:34,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:46:34,430 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 21:46:34,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 21:46:34,437 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 21:46:34,438 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 21:46:34,496 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes.