./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/gcd_1+newton_3_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_1+newton_3_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 353cc018d334cc7a981957992a6877492a13119a8e3524540eab203ce1072cbf --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 21:44:15,189 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 21:44:15,280 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 21:44:15,290 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 21:44:15,297 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 21:44:15,320 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 21:44:15,321 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 21:44:15,321 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 21:44:15,321 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 21:44:15,321 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 21:44:15,321 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 21:44:15,321 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 21:44:15,321 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 21:44:15,321 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 21:44:15,321 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 21:44:15,322 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 21:44:15,322 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 21:44:15,322 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 21:44:15,322 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 21:44:15,322 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 21:44:15,322 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 21:44:15,322 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 21:44:15,322 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 21:44:15,322 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 21:44:15,322 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 21:44:15,322 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 21:44:15,322 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 21:44:15,322 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 21:44:15,322 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 21:44:15,322 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 21:44:15,322 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 21:44:15,324 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 21:44:15,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:44:15,324 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 21:44:15,324 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 21:44:15,324 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 21:44:15,324 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 21:44:15,324 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 21:44:15,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 21:44:15,324 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 21:44:15,324 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 21:44:15,324 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 21:44:15,324 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 21:44:15,324 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 -> 353cc018d334cc7a981957992a6877492a13119a8e3524540eab203ce1072cbf [2025-02-07 21:44:15,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 21:44:15,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 21:44:15,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 21:44:15,497 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 21:44:15,498 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 21:44:15,498 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_1+newton_3_1.i [2025-02-07 21:44:16,668 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/136a2933a/ab5086c951e348eda75316671145c1da/FLAGbdedfa799 [2025-02-07 21:44:16,880 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 21:44:16,881 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_1+newton_3_1.i [2025-02-07 21:44:16,888 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/136a2933a/ab5086c951e348eda75316671145c1da/FLAGbdedfa799 [2025-02-07 21:44:17,227 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/136a2933a/ab5086c951e348eda75316671145c1da [2025-02-07 21:44:17,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 21:44:17,231 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 21:44:17,235 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 21:44:17,236 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 21:44:17,243 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 21:44:17,243 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:44:17" (1/1) ... [2025-02-07 21:44:17,244 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@209d6388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:17, skipping insertion in model container [2025-02-07 21:44:17,244 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:44:17" (1/1) ... [2025-02-07 21:44:17,265 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 21:44:17,377 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_1+newton_3_1.i[1226,1239] [2025-02-07 21:44:17,400 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_1+newton_3_1.i[2828,2841] [2025-02-07 21:44:17,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:44:17,412 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 21:44:17,419 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_1+newton_3_1.i[1226,1239] [2025-02-07 21:44:17,429 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_1+newton_3_1.i[2828,2841] [2025-02-07 21:44:17,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:44:17,441 INFO L204 MainTranslator]: Completed translation [2025-02-07 21:44:17,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:17 WrapperNode [2025-02-07 21:44:17,442 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 21:44:17,443 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 21:44:17,443 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 21:44:17,444 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 21:44:17,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:17" (1/1) ... [2025-02-07 21:44:17,452 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:17" (1/1) ... [2025-02-07 21:44:17,466 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 88 [2025-02-07 21:44:17,466 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 21:44:17,467 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 21:44:17,467 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 21:44:17,467 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 21:44:17,474 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:17" (1/1) ... [2025-02-07 21:44:17,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:17" (1/1) ... [2025-02-07 21:44:17,480 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:17" (1/1) ... [2025-02-07 21:44:17,493 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 21:44:17,493 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:17" (1/1) ... [2025-02-07 21:44:17,493 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:17" (1/1) ... [2025-02-07 21:44:17,498 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:17" (1/1) ... [2025-02-07 21:44:17,502 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:17" (1/1) ... [2025-02-07 21:44:17,502 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:17" (1/1) ... [2025-02-07 21:44:17,503 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:17" (1/1) ... [2025-02-07 21:44:17,504 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 21:44:17,504 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 21:44:17,507 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 21:44:17,507 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 21:44:17,508 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:17" (1/1) ... [2025-02-07 21:44:17,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:44:17,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:44:17,539 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 21:44:17,547 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 21:44:17,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 21:44:17,573 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2025-02-07 21:44:17,573 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2025-02-07 21:44:17,573 INFO L130 BoogieDeclarations]: Found specification of procedure f [2025-02-07 21:44:17,573 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2025-02-07 21:44:17,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 21:44:17,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-07 21:44:17,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 21:44:17,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 21:44:17,628 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 21:44:17,629 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 21:44:17,752 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L27: assume false;assume false; [2025-02-07 21:44:17,754 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L27: assume !false; [2025-02-07 21:44:17,754 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 21:44:17,754 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L54: 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;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main1_~g~0#1 == main1_~y~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; [2025-02-07 21:44:17,755 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L-1: #t~ret18#1 := main_#res#1;havoc main_#t~nondet15#1, main_#t~ret16#1, main_#t~ret17#1;assume { :end_inline_main } true; [2025-02-07 21:44:17,755 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2025-02-07 21:44:17,755 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L26: assume 0 == __VERIFIER_assert_~cond#1; [2025-02-07 21:44:17,755 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L26: assume !(0 == __VERIFIER_assert_~cond#1); [2025-02-07 21:44:17,755 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L111: main_#t~ret17#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_#t~ret13#1, main2_#t~ret14#1, main2_~IN~0#1, main2_~x~1#1;assume { :end_inline_main2 } true;assume -2147483648 <= main_#t~ret17#1 && main_#t~ret17#1 <= 2147483647; [2025-02-07 21:44:17,755 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L109: main_#t~ret16#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~ret16#1 && main_#t~ret16#1 <= 2147483647; [2025-02-07 21:44:17,783 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2025-02-07 21:44:17,783 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 21:44:17,794 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 21:44:17,794 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 21:44:17,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:44:17 BoogieIcfgContainer [2025-02-07 21:44:17,794 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 21:44:17,797 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 21:44:17,797 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 21:44:17,800 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 21:44:17,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 09:44:17" (1/3) ... [2025-02-07 21:44:17,801 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@480f9808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:44:17, skipping insertion in model container [2025-02-07 21:44:17,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:17" (2/3) ... [2025-02-07 21:44:17,801 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@480f9808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:44:17, skipping insertion in model container [2025-02-07 21:44:17,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:44:17" (3/3) ... [2025-02-07 21:44:17,802 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_3_1.i [2025-02-07 21:44:17,812 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 21:44:17,813 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_1+newton_3_1.i that has 3 procedures, 32 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-02-07 21:44:17,848 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 21:44:17,859 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;@1f4b4ea9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 21:44:17,859 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-07 21:44:17,862 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 22 states have internal predecessors, (27), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-07 21:44:17,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-02-07 21:44:17,866 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:44:17,866 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 21:44:17,867 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:44:17,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:44:17,870 INFO L85 PathProgramCache]: Analyzing trace with hash 188303393, now seen corresponding path program 1 times [2025-02-07 21:44:17,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:44:17,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302513299] [2025-02-07 21:44:17,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:44:17,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:44:17,929 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-07 21:44:17,941 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-07 21:44:17,941 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:44:17,942 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:44:17,982 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-07 21:44:17,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 21:44:17,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302513299] [2025-02-07 21:44:17,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302513299] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 21:44:17,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 21:44:17,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 21:44:17,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508306609] [2025-02-07 21:44:17,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 21:44:17,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 21:44:17,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 21:44:17,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 21:44:18,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 21:44:18,003 INFO L87 Difference]: Start difference. First operand has 31 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 22 states have internal predecessors, (27), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-02-07 21:44:18,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:44:18,014 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2025-02-07 21:44:18,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 21:44:18,015 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 33 [2025-02-07 21:44:18,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:44:18,020 INFO L225 Difference]: With dead ends: 52 [2025-02-07 21:44:18,020 INFO L226 Difference]: Without dead ends: 22 [2025-02-07 21:44:18,021 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 21:44:18,024 INFO L435 NwaCegarLoop]: 37 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, 37 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 21:44:18,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-07 21:44:18,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2025-02-07 21:44:18,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2025-02-07 21:44:18,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-07 21:44:18,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2025-02-07 21:44:18,044 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2025-02-07 21:44:18,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:44:18,044 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2025-02-07 21:44:18,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-02-07 21:44:18,044 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2025-02-07 21:44:18,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-02-07 21:44:18,045 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:44:18,045 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 21:44:18,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 21:44:18,045 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:44:18,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:44:18,046 INFO L85 PathProgramCache]: Analyzing trace with hash 539103330, now seen corresponding path program 1 times [2025-02-07 21:44:18,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:44:18,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576912286] [2025-02-07 21:44:18,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:44:18,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:44:18,055 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-07 21:44:18,061 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-07 21:44:18,061 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:44:18,061 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 21:44:18,061 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-07 21:44:18,064 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-07 21:44:18,069 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-07 21:44:18,069 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:44:18,069 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 21:44:18,080 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-07 21:44:18,080 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-07 21:44:18,081 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-02-07 21:44:18,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-02-07 21:44:18,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-07 21:44:18,084 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-07 21:44:18,094 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 21:44:18,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 09:44:18 BoogieIcfgContainer [2025-02-07 21:44:18,096 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 21:44:18,097 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 21:44:18,097 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 21:44:18,097 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 21:44:18,097 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:44:17" (3/4) ... [2025-02-07 21:44:18,098 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-07 21:44:18,099 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 21:44:18,099 INFO L158 Benchmark]: Toolchain (without parser) took 868.88ms. Allocated memory is still 142.6MB. Free memory was 115.0MB in the beginning and 62.2MB in the end (delta: 52.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-02-07 21:44:18,100 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 125.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:44:18,100 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.29ms. Allocated memory is still 142.6MB. Free memory was 114.5MB in the beginning and 102.7MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 21:44:18,100 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.37ms. Allocated memory is still 142.6MB. Free memory was 102.7MB in the beginning and 101.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:44:18,100 INFO L158 Benchmark]: Boogie Preprocessor took 36.93ms. Allocated memory is still 142.6MB. Free memory was 101.2MB in the beginning and 99.5MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 21:44:18,100 INFO L158 Benchmark]: IcfgBuilder took 289.99ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 85.0MB in the end (delta: 14.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 21:44:18,101 INFO L158 Benchmark]: TraceAbstraction took 298.76ms. Allocated memory is still 142.6MB. Free memory was 84.6MB in the beginning and 62.2MB in the end (delta: 22.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-07 21:44:18,101 INFO L158 Benchmark]: Witness Printer took 2.45ms. Allocated memory is still 142.6MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:44:18,102 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 125.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 207.29ms. Allocated memory is still 142.6MB. Free memory was 114.5MB in the beginning and 102.7MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.37ms. Allocated memory is still 142.6MB. Free memory was 102.7MB in the beginning and 101.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.93ms. Allocated memory is still 142.6MB. Free memory was 101.2MB in the beginning and 99.5MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 289.99ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 85.0MB in the end (delta: 14.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 298.76ms. Allocated memory is still 142.6MB. Free memory was 84.6MB in the beginning and 62.2MB in the end (delta: 22.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 2.45ms. Allocated memory is still 142.6MB. Free memory is still 62.2MB. 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 80, overapproximation of someBinaryArithmeticFLOAToperation at line 85, overapproximation of someBinaryArithmeticFLOAToperation at line 93, overapproximation of someBinaryArithmeticFLOAToperation at line 97, overapproximation of someBinaryArithmeticFLOAToperation at line 95. 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)=112] [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)=112] [L95] RET, EXPR f(x) VAL [IN=110, x=112] [L95] CALL, EXPR fp(x) VAL [\old(x)=112] [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=112] [L95] RET, EXPR fp(x) VAL [IN=110, x=112] [L95] x = x - f(x)/fp(x) [L97] 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] [L97] RET, EXPR f(x) VAL [IN=110, x=111] [L97] 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] [L97] RET, EXPR fp(x) VAL [IN=110, x=111] [L97] 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, 32 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 3, 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, 37 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, 37 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=31occurred 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, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 18/18 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 21:44:18,113 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/gcd_1+newton_3_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 353cc018d334cc7a981957992a6877492a13119a8e3524540eab203ce1072cbf --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 21:44:20,081 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 21:44:20,173 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-07 21:44:20,181 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 21:44:20,181 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 21:44:20,205 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 21:44:20,206 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 21:44:20,206 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 21:44:20,206 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 21:44:20,207 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 21:44:20,207 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 21:44:20,208 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 21:44:20,208 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 21:44:20,208 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 21:44:20,208 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 21:44:20,208 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 21:44:20,208 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 21:44:20,208 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 21:44:20,208 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 21:44:20,208 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 21:44:20,208 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 21:44:20,208 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 21:44:20,208 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 21:44:20,209 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-07 21:44:20,209 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-07 21:44:20,209 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-07 21:44:20,209 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 21:44:20,209 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 21:44:20,209 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 21:44:20,209 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 21:44:20,209 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 21:44:20,209 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 21:44:20,209 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 21:44:20,209 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 21:44:20,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:44:20,209 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 21:44:20,209 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 21:44:20,209 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 21:44:20,209 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 21:44:20,209 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-07 21:44:20,209 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-07 21:44:20,209 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 21:44:20,209 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 21:44:20,209 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 21:44:20,209 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 21:44:20,210 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 -> 353cc018d334cc7a981957992a6877492a13119a8e3524540eab203ce1072cbf [2025-02-07 21:44:20,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 21:44:20,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 21:44:20,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 21:44:20,434 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 21:44:20,434 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 21:44:20,435 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_1+newton_3_1.i [2025-02-07 21:44:21,659 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1eac0ee4a/6c984f5df6da4fc3aee2b4ce97306c3e/FLAG0c9f697f9 [2025-02-07 21:44:21,950 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 21:44:21,950 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_1+newton_3_1.i [2025-02-07 21:44:21,955 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1eac0ee4a/6c984f5df6da4fc3aee2b4ce97306c3e/FLAG0c9f697f9 [2025-02-07 21:44:22,273 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1eac0ee4a/6c984f5df6da4fc3aee2b4ce97306c3e [2025-02-07 21:44:22,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 21:44:22,276 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 21:44:22,277 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 21:44:22,277 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 21:44:22,279 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 21:44:22,280 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:44:22" (1/1) ... [2025-02-07 21:44:22,280 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2048f8ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:22, skipping insertion in model container [2025-02-07 21:44:22,280 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:44:22" (1/1) ... [2025-02-07 21:44:22,289 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 21:44:22,374 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_1+newton_3_1.i[1226,1239] [2025-02-07 21:44:22,393 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_1+newton_3_1.i[2828,2841] [2025-02-07 21:44:22,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:44:22,402 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 21:44:22,409 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_1+newton_3_1.i[1226,1239] [2025-02-07 21:44:22,415 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_1+newton_3_1.i[2828,2841] [2025-02-07 21:44:22,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:44:22,425 INFO L204 MainTranslator]: Completed translation [2025-02-07 21:44:22,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:22 WrapperNode [2025-02-07 21:44:22,425 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 21:44:22,426 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 21:44:22,426 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 21:44:22,426 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 21:44:22,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:22" (1/1) ... [2025-02-07 21:44:22,435 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:22" (1/1) ... [2025-02-07 21:44:22,445 INFO L138 Inliner]: procedures = 28, calls = 26, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 83 [2025-02-07 21:44:22,445 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 21:44:22,446 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 21:44:22,446 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 21:44:22,446 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 21:44:22,451 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:22" (1/1) ... [2025-02-07 21:44:22,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:22" (1/1) ... [2025-02-07 21:44:22,453 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:22" (1/1) ... [2025-02-07 21:44:22,459 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2025-02-07 21:44:22,460 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:22" (1/1) ... [2025-02-07 21:44:22,460 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:22" (1/1) ... [2025-02-07 21:44:22,464 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:22" (1/1) ... [2025-02-07 21:44:22,464 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:22" (1/1) ... [2025-02-07 21:44:22,465 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:22" (1/1) ... [2025-02-07 21:44:22,466 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:22" (1/1) ... [2025-02-07 21:44:22,467 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 21:44:22,468 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 21:44:22,468 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 21:44:22,468 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 21:44:22,469 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:22" (1/1) ... [2025-02-07 21:44:22,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:44:22,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:44:22,494 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 21:44:22,496 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 21:44:22,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 21:44:22,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-07 21:44:22,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-07 21:44:22,511 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2025-02-07 21:44:22,511 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2025-02-07 21:44:22,511 INFO L130 BoogieDeclarations]: Found specification of procedure f [2025-02-07 21:44:22,511 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2025-02-07 21:44:22,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 21:44:22,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 21:44:22,563 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 21:44:22,564 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 21:44:31,324 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L27: assume false;assume false; [2025-02-07 21:44:31,324 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L27: assume !false; [2025-02-07 21:44:31,324 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 21:44:31,324 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L54: 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;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if ~sign_extend~32~8(main1_~g~0#1) == ~sign_extend~32~8(main1_~y~0#1) then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; [2025-02-07 21:44:31,325 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L-1: #t~ret18#1 := main_#res#1;havoc main_#t~nondet15#1, main_#t~ret16#1, main_#t~ret17#1;assume { :end_inline_main } true; [2025-02-07 21:44:31,325 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2025-02-07 21:44:31,325 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L26: assume 0bv32 == __VERIFIER_assert_~cond#1; [2025-02-07 21:44:31,325 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L26: assume !(0bv32 == __VERIFIER_assert_~cond#1); [2025-02-07 21:44:31,325 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L111: main_#t~ret17#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_#t~ret13#1, main2_#t~ret14#1, main2_~IN~0#1, main2_~x~1#1;assume { :end_inline_main2 } true; [2025-02-07 21:44:31,325 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L109: main_#t~ret16#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 21:44:35,412 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2025-02-07 21:44:35,412 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 21:44:35,417 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 21:44:35,417 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 21:44:35,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:44:35 BoogieIcfgContainer [2025-02-07 21:44:35,418 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 21:44:35,420 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 21:44:35,420 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 21:44:35,423 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 21:44:35,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 09:44:22" (1/3) ... [2025-02-07 21:44:35,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26c02a73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:44:35, skipping insertion in model container [2025-02-07 21:44:35,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:22" (2/3) ... [2025-02-07 21:44:35,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26c02a73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:44:35, skipping insertion in model container [2025-02-07 21:44:35,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:44:35" (3/3) ... [2025-02-07 21:44:35,425 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_3_1.i [2025-02-07 21:44:35,434 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 21:44:35,435 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_1+newton_3_1.i that has 3 procedures, 32 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-02-07 21:44:35,467 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 21:44:35,474 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;@2418dc44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 21:44:35,474 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-07 21:44:35,476 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 22 states have internal predecessors, (27), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-07 21:44:35,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-02-07 21:44:35,480 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:44:35,481 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 21:44:35,481 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:44:35,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:44:35,484 INFO L85 PathProgramCache]: Analyzing trace with hash 188303393, now seen corresponding path program 1 times [2025-02-07 21:44:35,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 21:44:35,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [877764823] [2025-02-07 21:44:35,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:44:35,492 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 21:44:35,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 21:44:35,498 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 21:44:35,499 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 21:44:35,566 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-07 21:44:37,916 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-07 21:44:37,917 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:44:37,917 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:44:38,012 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-07 21:44:38,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 21:44:38,044 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-07 21:44:38,045 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 21:44:38,045 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 21:44:38,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [877764823] [2025-02-07 21:44:38,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [877764823] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 21:44:38,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 21:44:38,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 21:44:38,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520572090] [2025-02-07 21:44:38,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 21:44:38,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 21:44:38,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 21:44:38,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 21:44:38,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 21:44:38,062 INFO L87 Difference]: Start difference. First operand has 31 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 22 states have internal predecessors, (27), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-02-07 21:44:38,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:44:38,071 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2025-02-07 21:44:38,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 21:44:38,073 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 33 [2025-02-07 21:44:38,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:44:38,076 INFO L225 Difference]: With dead ends: 52 [2025-02-07 21:44:38,076 INFO L226 Difference]: Without dead ends: 22 [2025-02-07 21:44:38,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 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 21:44:38,079 INFO L435 NwaCegarLoop]: 37 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, 37 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 21:44:38,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-07 21:44:38,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2025-02-07 21:44:38,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2025-02-07 21:44:38,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-07 21:44:38,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2025-02-07 21:44:38,099 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2025-02-07 21:44:38,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:44:38,099 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2025-02-07 21:44:38,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-02-07 21:44:38,099 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2025-02-07 21:44:38,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-02-07 21:44:38,100 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:44:38,100 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 21:44:38,161 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 21:44:38,301 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 21:44:38,302 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:44:38,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:44:38,302 INFO L85 PathProgramCache]: Analyzing trace with hash 539103330, now seen corresponding path program 1 times [2025-02-07 21:44:38,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 21:44:38,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195433643] [2025-02-07 21:44:38,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:44:38,303 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 21:44:38,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 21:44:38,305 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 21:44:38,307 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 21:44:38,350 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes.