./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/gcd_1+newton_3_5.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_5.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 8b88d28a7728931631f575ad9d71defb220443a8a6fd9744c7c34a892b41cf0b --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 21:44:22,780 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 21:44:22,825 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 21:44:22,829 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 21:44:22,829 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 21:44:22,844 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 21:44:22,844 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 21:44:22,844 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 21:44:22,845 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 21:44:22,845 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 21:44:22,845 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 21:44:22,845 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 21:44:22,845 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 21:44:22,845 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 21:44:22,845 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 21:44:22,845 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 21:44:22,845 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 21:44:22,846 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 21:44:22,846 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 21:44:22,846 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 21:44:22,846 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 21:44:22,846 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 21:44:22,846 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 21:44:22,846 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 21:44:22,846 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 21:44:22,846 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 21:44:22,846 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 21:44:22,846 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 21:44:22,847 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 21:44:22,847 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 21:44:22,847 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 21:44:22,847 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 21:44:22,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:44:22,847 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 21:44:22,847 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 21:44:22,847 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 21:44:22,847 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 21:44:22,847 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 21:44:22,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 21:44:22,848 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 21:44:22,848 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 21:44:22,848 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 21:44:22,848 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 21:44:22,848 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 -> 8b88d28a7728931631f575ad9d71defb220443a8a6fd9744c7c34a892b41cf0b [2025-02-07 21:44:23,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 21:44:23,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 21:44:23,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 21:44:23,072 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 21:44:23,072 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 21:44:23,073 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_1+newton_3_5.i [2025-02-07 21:44:24,285 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7150b8c32/deb4be8eb6f240acbab321cf8df0b48d/FLAG9a8b768b3 [2025-02-07 21:44:24,525 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 21:44:24,526 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_1+newton_3_5.i [2025-02-07 21:44:24,536 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7150b8c32/deb4be8eb6f240acbab321cf8df0b48d/FLAG9a8b768b3 [2025-02-07 21:44:24,858 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7150b8c32/deb4be8eb6f240acbab321cf8df0b48d [2025-02-07 21:44:24,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 21:44:24,861 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 21:44:24,862 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 21:44:24,863 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 21:44:24,865 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 21:44:24,866 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:44:24" (1/1) ... [2025-02-07 21:44:24,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55746b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:24, skipping insertion in model container [2025-02-07 21:44:24,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:44:24" (1/1) ... [2025-02-07 21:44:24,876 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 21:44:24,963 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_5.i[1226,1239] [2025-02-07 21:44:24,978 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_5.i[2828,2841] [2025-02-07 21:44:24,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:44:24,994 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 21:44:25,007 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_5.i[1226,1239] [2025-02-07 21:44:25,013 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_5.i[2828,2841] [2025-02-07 21:44:25,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:44:25,023 INFO L204 MainTranslator]: Completed translation [2025-02-07 21:44:25,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:25 WrapperNode [2025-02-07 21:44:25,024 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 21:44:25,025 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 21:44:25,025 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 21:44:25,025 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 21:44:25,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:25" (1/1) ... [2025-02-07 21:44:25,034 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:25" (1/1) ... [2025-02-07 21:44:25,046 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 88 [2025-02-07 21:44:25,046 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 21:44:25,047 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 21:44:25,047 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 21:44:25,047 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 21:44:25,053 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:25" (1/1) ... [2025-02-07 21:44:25,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:25" (1/1) ... [2025-02-07 21:44:25,054 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:25" (1/1) ... [2025-02-07 21:44:25,064 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 21:44:25,064 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:25" (1/1) ... [2025-02-07 21:44:25,064 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:25" (1/1) ... [2025-02-07 21:44:25,068 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:25" (1/1) ... [2025-02-07 21:44:25,069 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:25" (1/1) ... [2025-02-07 21:44:25,069 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:25" (1/1) ... [2025-02-07 21:44:25,070 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:25" (1/1) ... [2025-02-07 21:44:25,071 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 21:44:25,071 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 21:44:25,072 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 21:44:25,072 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 21:44:25,072 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:25" (1/1) ... [2025-02-07 21:44:25,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:44:25,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:44:25,100 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 21:44:25,102 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 21:44:25,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 21:44:25,117 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2025-02-07 21:44:25,117 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2025-02-07 21:44:25,117 INFO L130 BoogieDeclarations]: Found specification of procedure f [2025-02-07 21:44:25,118 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2025-02-07 21:44:25,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 21:44:25,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-07 21:44:25,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 21:44:25,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 21:44:25,159 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 21:44:25,161 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 21:44:25,272 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L27: assume false;assume false; [2025-02-07 21:44:25,272 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L27: assume !false; [2025-02-07 21:44:25,272 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 21:44:25,272 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 21:44:25,272 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 21:44:25,273 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2025-02-07 21:44:25,273 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L26: assume 0 == __VERIFIER_assert_~cond#1; [2025-02-07 21:44:25,273 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L26: assume !(0 == __VERIFIER_assert_~cond#1); [2025-02-07 21:44:25,273 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 21:44:25,273 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 21:44:25,296 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2025-02-07 21:44:25,296 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 21:44:25,303 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 21:44:25,303 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 21:44:25,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:44:25 BoogieIcfgContainer [2025-02-07 21:44:25,303 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 21:44:25,305 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 21:44:25,306 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 21:44:25,309 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 21:44:25,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 09:44:24" (1/3) ... [2025-02-07 21:44:25,310 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41636cbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:44:25, skipping insertion in model container [2025-02-07 21:44:25,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:25" (2/3) ... [2025-02-07 21:44:25,310 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41636cbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:44:25, skipping insertion in model container [2025-02-07 21:44:25,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:44:25" (3/3) ... [2025-02-07 21:44:25,311 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_3_5.i [2025-02-07 21:44:25,324 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 21:44:25,325 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_1+newton_3_5.i that has 3 procedures, 32 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-02-07 21:44:25,369 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 21:44:25,379 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;@1c7074cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 21:44:25,380 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-07 21:44:25,384 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 21:44:25,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-02-07 21:44:25,389 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:44:25,390 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 21:44:25,390 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:44:25,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:44:25,394 INFO L85 PathProgramCache]: Analyzing trace with hash 188303393, now seen corresponding path program 1 times [2025-02-07 21:44:25,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:44:25,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450334782] [2025-02-07 21:44:25,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:44:25,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:44:25,450 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-07 21:44:25,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-07 21:44:25,465 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:44:25,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:44:25,514 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 21:44:25,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 21:44:25,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450334782] [2025-02-07 21:44:25,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450334782] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 21:44:25,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 21:44:25,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 21:44:25,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772937142] [2025-02-07 21:44:25,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 21:44:25,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 21:44:25,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 21:44:25,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 21:44:25,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 21:44:25,540 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 21:44:25,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:44:25,557 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2025-02-07 21:44:25,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 21:44:25,558 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 21:44:25,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:44:25,562 INFO L225 Difference]: With dead ends: 52 [2025-02-07 21:44:25,563 INFO L226 Difference]: Without dead ends: 22 [2025-02-07 21:44:25,567 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 21:44:25,570 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 21:44:25,572 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 21:44:25,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2025-02-07 21:44:25,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2025-02-07 21:44:25,593 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 21:44:25,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2025-02-07 21:44:25,599 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2025-02-07 21:44:25,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:44:25,600 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2025-02-07 21:44:25,601 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 21:44:25,601 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2025-02-07 21:44:25,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-02-07 21:44:25,602 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:44:25,602 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 21:44:25,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 21:44:25,602 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:44:25,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:44:25,604 INFO L85 PathProgramCache]: Analyzing trace with hash 539103330, now seen corresponding path program 1 times [2025-02-07 21:44:25,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:44:25,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982439403] [2025-02-07 21:44:25,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:44:25,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:44:25,618 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-07 21:44:25,633 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-07 21:44:25,636 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:44:25,637 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 21:44:25,637 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-07 21:44:25,640 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-07 21:44:25,650 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-07 21:44:25,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:44:25,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 21:44:25,674 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-07 21:44:25,674 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-07 21:44:25,675 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-02-07 21:44:25,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-02-07 21:44:25,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-07 21:44:25,680 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-07 21:44:25,696 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 21:44:25,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 09:44:25 BoogieIcfgContainer [2025-02-07 21:44:25,699 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 21:44:25,700 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 21:44:25,700 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 21:44:25,700 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 21:44:25,700 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:44:25" (3/4) ... [2025-02-07 21:44:25,702 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-07 21:44:25,703 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 21:44:25,703 INFO L158 Benchmark]: Toolchain (without parser) took 841.70ms. Allocated memory is still 167.8MB. Free memory was 127.5MB in the beginning and 74.4MB in the end (delta: 53.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-02-07 21:44:25,703 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 118.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:44:25,704 INFO L158 Benchmark]: CACSL2BoogieTranslator took 161.57ms. Allocated memory is still 167.8MB. Free memory was 127.1MB in the beginning and 115.4MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 21:44:25,704 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.83ms. Allocated memory is still 167.8MB. Free memory was 115.4MB in the beginning and 113.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:44:25,704 INFO L158 Benchmark]: Boogie Preprocessor took 24.18ms. Allocated memory is still 167.8MB. Free memory was 113.9MB in the beginning and 112.5MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 21:44:25,705 INFO L158 Benchmark]: IcfgBuilder took 231.96ms. Allocated memory is still 167.8MB. Free memory was 112.1MB in the beginning and 97.7MB in the end (delta: 14.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 21:44:25,705 INFO L158 Benchmark]: TraceAbstraction took 393.78ms. Allocated memory is still 167.8MB. Free memory was 97.0MB in the beginning and 74.8MB in the end (delta: 22.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-07 21:44:25,705 INFO L158 Benchmark]: Witness Printer took 2.86ms. Allocated memory is still 167.8MB. Free memory was 74.8MB in the beginning and 74.4MB in the end (delta: 381.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:44:25,706 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 118.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 161.57ms. Allocated memory is still 167.8MB. Free memory was 127.1MB in the beginning and 115.4MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.83ms. Allocated memory is still 167.8MB. Free memory was 115.4MB in the beginning and 113.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.18ms. Allocated memory is still 167.8MB. Free memory was 113.9MB in the beginning and 112.5MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 231.96ms. Allocated memory is still 167.8MB. Free memory was 112.1MB in the beginning and 97.7MB in the end (delta: 14.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 393.78ms. Allocated memory is still 167.8MB. Free memory was 97.0MB in the beginning and 74.8MB in the end (delta: 22.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 2.86ms. Allocated memory is still 167.8MB. Free memory was 74.8MB in the beginning and 74.4MB in the end (delta: 381.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 102]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 93, overapproximation of someBinaryArithmeticFLOAToperation at line 97, overapproximation of someBinaryArithmeticFLOAToperation at line 95, overapproximation of someBinaryArithmeticFLOAToperation at line 85, overapproximation of someBinaryArithmeticFLOAToperation at line 80. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L75] COND FALSE !(!cond) [L91] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [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: 0.3s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, 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 21:44:25,722 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_1+newton_3_5.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 8b88d28a7728931631f575ad9d71defb220443a8a6fd9744c7c34a892b41cf0b --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 21:44:27,726 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 21:44:27,814 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-07 21:44:27,821 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 21:44:27,823 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 21:44:27,844 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 21:44:27,845 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 21:44:27,845 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 21:44:27,845 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 21:44:27,845 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 21:44:27,845 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 21:44:27,845 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 21:44:27,845 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 21:44:27,846 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 21:44:27,846 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 21:44:27,846 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 21:44:27,846 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 21:44:27,846 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 21:44:27,846 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 21:44:27,846 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 21:44:27,846 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 21:44:27,846 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 21:44:27,846 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 21:44:27,846 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-07 21:44:27,846 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-07 21:44:27,846 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-07 21:44:27,846 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 21:44:27,846 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 21:44:27,847 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 21:44:27,847 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 21:44:27,847 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 21:44:27,847 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 21:44:27,847 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 21:44:27,847 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 21:44:27,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:44:27,847 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 21:44:27,847 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 21:44:27,847 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 21:44:27,847 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 21:44:27,847 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-07 21:44:27,847 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-07 21:44:27,847 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 21:44:27,847 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 21:44:27,847 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 21:44:27,847 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 21:44:27,847 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 -> 8b88d28a7728931631f575ad9d71defb220443a8a6fd9744c7c34a892b41cf0b [2025-02-07 21:44:28,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 21:44:28,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 21:44:28,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 21:44:28,079 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 21:44:28,081 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 21:44:28,082 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_1+newton_3_5.i [2025-02-07 21:44:29,217 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3bc1f723f/466fb9d1854f405ca160964a991145ee/FLAGb42bb73ff [2025-02-07 21:44:29,435 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 21:44:29,436 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_1+newton_3_5.i [2025-02-07 21:44:29,441 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3bc1f723f/466fb9d1854f405ca160964a991145ee/FLAGb42bb73ff [2025-02-07 21:44:29,450 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3bc1f723f/466fb9d1854f405ca160964a991145ee [2025-02-07 21:44:29,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 21:44:29,453 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 21:44:29,454 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 21:44:29,454 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 21:44:29,457 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 21:44:29,457 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:44:29" (1/1) ... [2025-02-07 21:44:29,458 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70055b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:29, skipping insertion in model container [2025-02-07 21:44:29,458 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:44:29" (1/1) ... [2025-02-07 21:44:29,468 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 21:44:29,572 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_5.i[1226,1239] [2025-02-07 21:44:29,598 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_5.i[2828,2841] [2025-02-07 21:44:29,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:44:29,614 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 21:44:29,624 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_5.i[1226,1239] [2025-02-07 21:44:29,635 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_5.i[2828,2841] [2025-02-07 21:44:29,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:44:29,647 INFO L204 MainTranslator]: Completed translation [2025-02-07 21:44:29,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:29 WrapperNode [2025-02-07 21:44:29,647 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 21:44:29,648 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 21:44:29,648 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 21:44:29,648 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 21:44:29,652 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:29" (1/1) ... [2025-02-07 21:44:29,658 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:29" (1/1) ... [2025-02-07 21:44:29,669 INFO L138 Inliner]: procedures = 28, calls = 26, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 83 [2025-02-07 21:44:29,669 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 21:44:29,670 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 21:44:29,670 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 21:44:29,670 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 21:44:29,675 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:29" (1/1) ... [2025-02-07 21:44:29,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:29" (1/1) ... [2025-02-07 21:44:29,678 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:29" (1/1) ... [2025-02-07 21:44:29,685 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 21:44:29,685 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:29" (1/1) ... [2025-02-07 21:44:29,685 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:29" (1/1) ... [2025-02-07 21:44:29,690 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:29" (1/1) ... [2025-02-07 21:44:29,691 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:29" (1/1) ... [2025-02-07 21:44:29,692 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:29" (1/1) ... [2025-02-07 21:44:29,692 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:29" (1/1) ... [2025-02-07 21:44:29,694 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 21:44:29,694 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 21:44:29,694 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 21:44:29,694 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 21:44:29,695 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:29" (1/1) ... [2025-02-07 21:44:29,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:44:29,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:44:29,733 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 21:44:29,735 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 21:44:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 21:44:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-07 21:44:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-07 21:44:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2025-02-07 21:44:29,756 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2025-02-07 21:44:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure f [2025-02-07 21:44:29,756 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2025-02-07 21:44:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 21:44:29,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 21:44:29,818 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 21:44:29,820 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 21:44:40,020 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L27: assume false;assume false; [2025-02-07 21:44:40,020 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L27: assume !false; [2025-02-07 21:44:40,020 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 21:44:40,021 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 21:44:40,021 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 21:44:40,021 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2025-02-07 21:44:40,022 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L26: assume 0bv32 == __VERIFIER_assert_~cond#1; [2025-02-07 21:44:40,022 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L26: assume !(0bv32 == __VERIFIER_assert_~cond#1); [2025-02-07 21:44:40,022 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 21:44:40,022 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 21:44:44,136 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2025-02-07 21:44:44,136 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 21:44:44,146 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 21:44:44,147 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 21:44:44,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:44:44 BoogieIcfgContainer [2025-02-07 21:44:44,148 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 21:44:44,149 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 21:44:44,149 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 21:44:44,154 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 21:44:44,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 09:44:29" (1/3) ... [2025-02-07 21:44:44,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53a5ad4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:44:44, skipping insertion in model container [2025-02-07 21:44:44,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:44:29" (2/3) ... [2025-02-07 21:44:44,155 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53a5ad4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:44:44, skipping insertion in model container [2025-02-07 21:44:44,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:44:44" (3/3) ... [2025-02-07 21:44:44,156 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_3_5.i [2025-02-07 21:44:44,167 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 21:44:44,169 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_1+newton_3_5.i that has 3 procedures, 32 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-02-07 21:44:44,210 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 21:44:44,220 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;@589b16e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 21:44:44,221 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-07 21:44:44,223 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 21:44:44,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-02-07 21:44:44,228 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:44:44,228 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 21:44:44,228 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:44:44,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:44:44,232 INFO L85 PathProgramCache]: Analyzing trace with hash 188303393, now seen corresponding path program 1 times [2025-02-07 21:44:44,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 21:44:44,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1322049325] [2025-02-07 21:44:44,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:44:44,243 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 21:44:44,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 21:44:44,246 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 21:44:44,247 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 21:44:44,315 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-07 21:44:46,669 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-07 21:44:46,669 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:44:46,669 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:44:46,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-07 21:44:46,763 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 21:44:46,779 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 21:44:46,779 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 21:44:46,779 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 21:44:46,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1322049325] [2025-02-07 21:44:46,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1322049325] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 21:44:46,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 21:44:46,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 21:44:46,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079366328] [2025-02-07 21:44:46,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 21:44:46,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 21:44:46,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 21:44:46,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 21:44:46,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 21:44:46,802 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 21:44:46,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:44:46,814 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2025-02-07 21:44:46,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 21:44:46,816 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 21:44:46,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:44:46,819 INFO L225 Difference]: With dead ends: 52 [2025-02-07 21:44:46,819 INFO L226 Difference]: Without dead ends: 22 [2025-02-07 21:44:46,825 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 21:44:46,827 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 21:44:46,827 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 21:44:46,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2025-02-07 21:44:46,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2025-02-07 21:44:46,856 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 21:44:46,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2025-02-07 21:44:46,859 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2025-02-07 21:44:46,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:44:46,859 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2025-02-07 21:44:46,859 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 21:44:46,859 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2025-02-07 21:44:46,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-02-07 21:44:46,860 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:44:46,860 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 21:44:46,921 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 21:44:47,065 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 21:44:47,066 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:44:47,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:44:47,066 INFO L85 PathProgramCache]: Analyzing trace with hash 539103330, now seen corresponding path program 1 times [2025-02-07 21:44:47,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 21:44:47,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [845371578] [2025-02-07 21:44:47,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:44:47,067 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 21:44:47,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 21:44:47,069 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 21:44:47,071 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 21:44:47,108 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes.