./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c --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/square_2+soft_float_2a.c.cil.c -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 0fdb430a563564dba34d4fe6c6ffeed490245913891172fda591ae44bb309801 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 21:58:20,815 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 21:58:20,872 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 21:58:20,875 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 21:58:20,876 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 21:58:20,894 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 21:58:20,894 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 21:58:20,894 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 21:58:20,894 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 21:58:20,894 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 21:58:20,894 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 21:58:20,894 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 21:58:20,895 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 21:58:20,895 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 21:58:20,895 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 21:58:20,895 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 21:58:20,895 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 21:58:20,895 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 21:58:20,895 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 21:58:20,895 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 21:58:20,895 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 21:58:20,895 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 21:58:20,895 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 21:58:20,895 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 21:58:20,895 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 21:58:20,895 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 21:58:20,895 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 21:58:20,895 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 21:58:20,896 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 21:58:20,896 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 21:58:20,896 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 21:58:20,896 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 21:58:20,896 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:58:20,896 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 21:58:20,896 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 21:58:20,896 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 21:58:20,896 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 21:58:20,896 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 21:58:20,896 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 21:58:20,896 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 21:58:20,896 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 21:58:20,896 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 21:58:20,896 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 21:58:20,896 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 -> 0fdb430a563564dba34d4fe6c6ffeed490245913891172fda591ae44bb309801 [2025-02-07 21:58:21,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 21:58:21,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 21:58:21,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 21:58:21,117 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 21:58:21,118 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 21:58:21,118 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c [2025-02-07 21:58:22,311 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/299dae8a1/f834d88508d6451aae0eb42c9a6a65b7/FLAG867828fdb [2025-02-07 21:58:22,611 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 21:58:22,611 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c [2025-02-07 21:58:22,630 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/299dae8a1/f834d88508d6451aae0eb42c9a6a65b7/FLAG867828fdb [2025-02-07 21:58:22,951 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/299dae8a1/f834d88508d6451aae0eb42c9a6a65b7 [2025-02-07 21:58:22,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 21:58:22,953 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 21:58:22,959 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 21:58:22,963 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 21:58:22,966 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 21:58:22,967 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:58:22" (1/1) ... [2025-02-07 21:58:22,967 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f4859dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:22, skipping insertion in model container [2025-02-07 21:58:22,967 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:58:22" (1/1) ... [2025-02-07 21:58:23,001 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 21:58:23,182 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/square_2+soft_float_2a.c.cil.c[1997,2010] [2025-02-07 21:58:23,190 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/square_2+soft_float_2a.c.cil.c[2366,2379] [2025-02-07 21:58:23,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:58:23,265 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 21:58:23,282 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/square_2+soft_float_2a.c.cil.c[1997,2010] [2025-02-07 21:58:23,288 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/square_2+soft_float_2a.c.cil.c[2366,2379] [2025-02-07 21:58:23,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:58:23,352 INFO L204 MainTranslator]: Completed translation [2025-02-07 21:58:23,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:23 WrapperNode [2025-02-07 21:58:23,353 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 21:58:23,354 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 21:58:23,354 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 21:58:23,354 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 21:58:23,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:23" (1/1) ... [2025-02-07 21:58:23,365 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:23" (1/1) ... [2025-02-07 21:58:23,382 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 168 [2025-02-07 21:58:23,385 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 21:58:23,386 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 21:58:23,386 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 21:58:23,386 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 21:58:23,393 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:23" (1/1) ... [2025-02-07 21:58:23,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:23" (1/1) ... [2025-02-07 21:58:23,395 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:23" (1/1) ... [2025-02-07 21:58:23,411 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-07 21:58:23,411 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:23" (1/1) ... [2025-02-07 21:58:23,411 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:23" (1/1) ... [2025-02-07 21:58:23,419 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:23" (1/1) ... [2025-02-07 21:58:23,419 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:23" (1/1) ... [2025-02-07 21:58:23,423 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:23" (1/1) ... [2025-02-07 21:58:23,424 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:23" (1/1) ... [2025-02-07 21:58:23,425 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 21:58:23,425 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 21:58:23,428 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 21:58:23,428 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 21:58:23,429 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:23" (1/1) ... [2025-02-07 21:58:23,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:58:23,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:58:23,452 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 21:58:23,457 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 21:58:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 21:58:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2025-02-07 21:58:23,474 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2025-02-07 21:58:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 21:58:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 21:58:23,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 21:58:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-07 21:58:23,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-07 21:58:23,521 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 21:58:23,522 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 21:58:23,796 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L316: main2_~__retres16~0#1 := 0;main2_#res#1 := main2_~__retres16~0#1; [2025-02-07 21:58:23,797 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L308: main2_~tmp___1~0#1 := main2_~tmp___0~0#1; [2025-02-07 21:58:23,797 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L300: assume main2_~r_mul~0#1 % 4294967296 < main2_~zero~0#1 % 4294967296;main2_~tmp___1~0#1 := -1; [2025-02-07 21:58:23,797 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L300: assume !(main2_~r_mul~0#1 % 4294967296 < main2_~zero~0#1 % 4294967296); [2025-02-07 21:58:23,797 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L325: main_#t~ret29#1 := main2_#res#1;havoc main2_#t~nondet18#1, main2_#t~nondet19#1, main2_#t~nondet20#1, main2_#t~nondet21#1, main2_#t~ret22#1, main2_#t~ret23#1, main2_#t~ret24#1, main2_#t~ret25#1, main2_#t~ret26#1, main2_~a~0#1, main2_~ma~2#1, main2_~ea~2#1, main2_~b~0#1, main2_~mb~2#1, main2_~eb~2#1, main2_~r_mul~0#1, main2_~zero~0#1, main2_~one~0#1, main2_~sa~0#1, main2_~tmp~2#1, main2_~tmp___0~0#1, main2_~tmp___1~0#1, main2_~__retres16~0#1;assume { :end_inline_main2 } true;assume -2147483648 <= main_#t~ret29#1 && main_#t~ret29#1 <= 2147483647; [2025-02-07 21:58:23,797 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L-1: #t~ret30#1 := main_#res#1;havoc main_#t~nondet27#1, main_#t~ret28#1, main_#t~ret29#1;assume { :end_inline_main } true; [2025-02-07 21:58:23,797 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2025-02-07 21:58:23,797 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L297: main2_#t~ret26#1 := mulflt_#res#1;havoc mulflt_#t~bitwise14#1, mulflt_#t~bitwise15#1, mulflt_#t~bitwise16#1, mulflt_#t~bitwise17#1, mulflt_~a#1, mulflt_~b#1, mulflt_~res~2#1, mulflt_~ma~1#1, mulflt_~mb~1#1, mulflt_~accu~0#1, mulflt_~ea~1#1, mulflt_~eb~1#1, mulflt_~tmp~1#1, mulflt_~__retres10~1#1;havoc mulflt_#in~a#1, mulflt_#in~b#1;assume { :end_inline_mulflt } true;main2_~r_mul~0#1 := main2_#t~ret26#1;havoc main2_#t~ret26#1; [2025-02-07 21:58:23,798 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L323: main_#t~ret28#1 := main1_#res#1;havoc main1_#t~nondet2#1, main1_~IN~0#1, main1_~x~0#1, main1_~result~0#1;assume { :end_inline_main1 } true;assume -2147483648 <= main_#t~ret28#1 && main_#t~ret28#1 <= 2147483647; [2025-02-07 21:58:23,798 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L311: SUMMARY for call __VERIFIER_assert((if 0 == main2_~tmp___1~0#1 then 1 else 0)); srcloc: null [2025-02-07 21:58:23,798 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L303: assume main2_~r_mul~0#1 % 4294967296 > main2_~zero~0#1 % 4294967296;main2_~tmp___0~0#1 := 1; [2025-02-07 21:58:23,798 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L303: assume !(main2_~r_mul~0#1 % 4294967296 > main2_~zero~0#1 % 4294967296);main2_~tmp___0~0#1 := 0; [2025-02-07 21:58:23,798 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L299: assume 0 == main2_~sa~0#1; [2025-02-07 21:58:23,798 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L299: assume !(0 == main2_~sa~0#1); [2025-02-07 21:58:23,814 INFO L? ?]: Removed 70 outVars from TransFormulas that were not future-live. [2025-02-07 21:58:23,814 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 21:58:23,827 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 21:58:23,827 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 21:58:23,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:58:23 BoogieIcfgContainer [2025-02-07 21:58:23,827 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 21:58:23,829 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 21:58:23,829 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 21:58:23,832 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 21:58:23,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 09:58:22" (1/3) ... [2025-02-07 21:58:23,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9cf32b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:58:23, skipping insertion in model container [2025-02-07 21:58:23,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:23" (2/3) ... [2025-02-07 21:58:23,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9cf32b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:58:23, skipping insertion in model container [2025-02-07 21:58:23,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:58:23" (3/3) ... [2025-02-07 21:58:23,833 INFO L128 eAbstractionObserver]: Analyzing ICFG square_2+soft_float_2a.c.cil.c [2025-02-07 21:58:23,842 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 21:58:23,843 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG square_2+soft_float_2a.c.cil.c that has 3 procedures, 76 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-02-07 21:58:23,871 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 21:58:23,877 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;@78fc6315, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 21:58:23,877 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-07 21:58:23,880 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 57 states have (on average 1.5789473684210527) internal successors, (90), 63 states have internal predecessors, (90), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-07 21:58:23,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-07 21:58:23,883 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:58:23,883 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-07 21:58:23,883 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:58:23,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:58:23,886 INFO L85 PathProgramCache]: Analyzing trace with hash 507033004, now seen corresponding path program 1 times [2025-02-07 21:58:23,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:58:23,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903366640] [2025-02-07 21:58:23,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:58:23,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:58:23,930 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-07 21:58:23,937 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-07 21:58:23,937 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:58:23,937 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:58:23,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 21:58:23,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 21:58:23,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903366640] [2025-02-07 21:58:23,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903366640] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 21:58:23,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 21:58:23,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 21:58:23,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591614732] [2025-02-07 21:58:23,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 21:58:23,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 21:58:23,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 21:58:23,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 21:58:23,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 21:58:23,974 INFO L87 Difference]: Start difference. First operand has 69 states, 57 states have (on average 1.5789473684210527) internal successors, (90), 63 states have internal predecessors, (90), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 21:58:23,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:58:23,984 INFO L93 Difference]: Finished difference Result 87 states and 121 transitions. [2025-02-07 21:58:23,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 21:58:23,985 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-02-07 21:58:23,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:58:23,988 INFO L225 Difference]: With dead ends: 87 [2025-02-07 21:58:23,988 INFO L226 Difference]: Without dead ends: 7 [2025-02-07 21:58:23,990 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 21:58:23,991 INFO L435 NwaCegarLoop]: 25 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, 25 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 21:58:23,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-07 21:58:24,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2025-02-07 21:58:24,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2025-02-07 21:58:24,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 21:58:24,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2025-02-07 21:58:24,007 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2025-02-07 21:58:24,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:58:24,007 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2025-02-07 21:58:24,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 21:58:24,008 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2025-02-07 21:58:24,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-07 21:58:24,008 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:58:24,008 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-07 21:58:24,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 21:58:24,008 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:58:24,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:58:24,009 INFO L85 PathProgramCache]: Analyzing trace with hash 507062795, now seen corresponding path program 1 times [2025-02-07 21:58:24,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:58:24,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365194364] [2025-02-07 21:58:24,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:58:24,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:58:24,013 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-07 21:58:24,016 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-07 21:58:24,016 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:58:24,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 21:58:24,017 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-07 21:58:24,022 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-07 21:58:24,027 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-07 21:58:24,027 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:58:24,027 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 21:58:24,036 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-07 21:58:24,037 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-07 21:58:24,038 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-02-07 21:58:24,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-02-07 21:58:24,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-07 21:58:24,041 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-07 21:58:24,047 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 21:58:24,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 09:58:24 BoogieIcfgContainer [2025-02-07 21:58:24,050 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 21:58:24,050 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 21:58:24,050 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 21:58:24,050 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 21:58:24,051 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:58:23" (3/4) ... [2025-02-07 21:58:24,052 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-07 21:58:24,053 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 21:58:24,053 INFO L158 Benchmark]: Toolchain (without parser) took 1100.10ms. Allocated memory is still 142.6MB. Free memory was 114.5MB in the beginning and 53.9MB in the end (delta: 60.6MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-02-07 21:58:24,054 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:58:24,054 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.15ms. Allocated memory is still 142.6MB. Free memory was 114.5MB in the beginning and 100.4MB in the end (delta: 14.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 21:58:24,054 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.55ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 98.6MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 21:58:24,054 INFO L158 Benchmark]: Boogie Preprocessor took 38.97ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 96.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:58:24,054 INFO L158 Benchmark]: IcfgBuilder took 401.93ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 73.8MB in the end (delta: 22.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-07 21:58:24,055 INFO L158 Benchmark]: TraceAbstraction took 220.88ms. Allocated memory is still 142.6MB. Free memory was 72.9MB in the beginning and 53.9MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 21:58:24,055 INFO L158 Benchmark]: Witness Printer took 2.77ms. Allocated memory is still 142.6MB. Free memory is still 53.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:58:24,056 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 125.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.15ms. Allocated memory is still 142.6MB. Free memory was 114.5MB in the beginning and 100.4MB in the end (delta: 14.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.55ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 98.6MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.97ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 96.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 401.93ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 73.8MB in the end (delta: 22.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 220.88ms. Allocated memory is still 142.6MB. Free memory was 72.9MB in the beginning and 53.9MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 2.77ms. Allocated memory is still 142.6MB. Free memory is still 53.9MB. 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: 48]: 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 40, overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; [L47] COND TRUE !(result >= 0.0f && result < 1.398f) [L48] reach_error() - UnprovableResult [Line: 60]: 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, 76 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, 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, 25 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, 25 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=69occurred 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, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 21:58:24,067 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/square_2+soft_float_2a.c.cil.c -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 0fdb430a563564dba34d4fe6c6ffeed490245913891172fda591ae44bb309801 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 21:58:26,078 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 21:58:26,152 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-07 21:58:26,161 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 21:58:26,161 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 21:58:26,213 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 21:58:26,214 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 21:58:26,214 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 21:58:26,214 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 21:58:26,214 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 21:58:26,214 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 21:58:26,214 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 21:58:26,214 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 21:58:26,214 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 21:58:26,214 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 21:58:26,216 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 21:58:26,216 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 21:58:26,216 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 21:58:26,217 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 21:58:26,217 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 21:58:26,217 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 21:58:26,217 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 21:58:26,218 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 21:58:26,218 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-07 21:58:26,218 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-07 21:58:26,218 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-07 21:58:26,218 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 21:58:26,218 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 21:58:26,218 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 21:58:26,218 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 21:58:26,218 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 21:58:26,219 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 21:58:26,219 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 21:58:26,219 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 21:58:26,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:58:26,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 21:58:26,219 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 21:58:26,219 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 21:58:26,219 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 21:58:26,219 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-07 21:58:26,219 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-07 21:58:26,220 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 21:58:26,220 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 21:58:26,220 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 21:58:26,220 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 21:58:26,220 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 -> 0fdb430a563564dba34d4fe6c6ffeed490245913891172fda591ae44bb309801 [2025-02-07 21:58:26,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 21:58:26,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 21:58:26,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 21:58:26,419 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 21:58:26,420 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 21:58:26,420 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c [2025-02-07 21:58:27,706 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4a68fa29f/b321bb1607f3466cb4c9c13c411e39d8/FLAG5cba51a40 [2025-02-07 21:58:27,926 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 21:58:27,926 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c [2025-02-07 21:58:27,933 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4a68fa29f/b321bb1607f3466cb4c9c13c411e39d8/FLAG5cba51a40 [2025-02-07 21:58:27,944 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4a68fa29f/b321bb1607f3466cb4c9c13c411e39d8 [2025-02-07 21:58:27,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 21:58:27,947 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 21:58:27,947 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 21:58:27,948 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 21:58:27,951 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 21:58:27,951 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:58:27" (1/1) ... [2025-02-07 21:58:27,952 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63ee1ed5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:27, skipping insertion in model container [2025-02-07 21:58:27,952 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:58:27" (1/1) ... [2025-02-07 21:58:27,965 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 21:58:28,087 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/square_2+soft_float_2a.c.cil.c[1997,2010] [2025-02-07 21:58:28,094 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/square_2+soft_float_2a.c.cil.c[2366,2379] [2025-02-07 21:58:28,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:58:28,147 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 21:58:28,161 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/square_2+soft_float_2a.c.cil.c[1997,2010] [2025-02-07 21:58:28,163 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/square_2+soft_float_2a.c.cil.c[2366,2379] [2025-02-07 21:58:28,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:58:28,205 INFO L204 MainTranslator]: Completed translation [2025-02-07 21:58:28,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:28 WrapperNode [2025-02-07 21:58:28,207 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 21:58:28,208 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 21:58:28,209 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 21:58:28,209 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 21:58:28,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:28" (1/1) ... [2025-02-07 21:58:28,226 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:28" (1/1) ... [2025-02-07 21:58:28,246 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 132 [2025-02-07 21:58:28,249 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 21:58:28,250 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 21:58:28,250 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 21:58:28,250 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 21:58:28,256 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:28" (1/1) ... [2025-02-07 21:58:28,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:28" (1/1) ... [2025-02-07 21:58:28,261 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:28" (1/1) ... [2025-02-07 21:58:28,276 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-07 21:58:28,281 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:28" (1/1) ... [2025-02-07 21:58:28,281 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:28" (1/1) ... [2025-02-07 21:58:28,289 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:28" (1/1) ... [2025-02-07 21:58:28,294 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:28" (1/1) ... [2025-02-07 21:58:28,295 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:28" (1/1) ... [2025-02-07 21:58:28,296 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:28" (1/1) ... [2025-02-07 21:58:28,298 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 21:58:28,301 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 21:58:28,301 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 21:58:28,301 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 21:58:28,302 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:28" (1/1) ... [2025-02-07 21:58:28,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:58:28,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:58:28,329 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 21:58:28,333 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 21:58:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 21:58:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-07 21:58:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2025-02-07 21:58:28,351 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2025-02-07 21:58:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 21:58:28,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 21:58:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-07 21:58:28,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-07 21:58:28,418 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 21:58:28,419 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 21:58:33,105 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L316: main2_~__retres16~0#1 := 0bv32;main2_#res#1 := main2_~__retres16~0#1; [2025-02-07 21:58:33,105 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L308: main2_~tmp___1~0#1 := main2_~tmp___0~0#1; [2025-02-07 21:58:33,105 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L300: assume ~bvult~32(main2_~r_mul~0#1, main2_~zero~0#1);main2_~tmp___1~0#1 := 4294967295bv32; [2025-02-07 21:58:33,105 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L300: assume !~bvult~32(main2_~r_mul~0#1, main2_~zero~0#1); [2025-02-07 21:58:33,106 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L325: main_#t~ret18#1 := main2_#res#1;havoc main2_#t~nondet7#1, main2_#t~nondet8#1, main2_#t~nondet9#1, main2_#t~nondet10#1, main2_#t~ret11#1, main2_#t~ret12#1, main2_#t~ret13#1, main2_#t~ret14#1, main2_#t~ret15#1, main2_~a~0#1, main2_~ma~2#1, main2_~ea~2#1, main2_~b~0#1, main2_~mb~2#1, main2_~eb~2#1, main2_~r_mul~0#1, main2_~zero~0#1, main2_~one~0#1, main2_~sa~0#1, main2_~tmp~2#1, main2_~tmp___0~0#1, main2_~tmp___1~0#1, main2_~__retres16~0#1;assume { :end_inline_main2 } true; [2025-02-07 21:58:33,106 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L-1: #t~ret19#1 := main_#res#1;havoc main_#t~nondet16#1, main_#t~ret17#1, main_#t~ret18#1;assume { :end_inline_main } true; [2025-02-07 21:58:33,106 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2025-02-07 21:58:33,106 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L297: main2_#t~ret15#1 := mulflt_#res#1;havoc mulflt_~a#1, mulflt_~b#1, mulflt_~res~2#1, mulflt_~ma~1#1, mulflt_~mb~1#1, mulflt_~accu~0#1, mulflt_~ea~1#1, mulflt_~eb~1#1, mulflt_~tmp~1#1, mulflt_~__retres10~1#1;havoc mulflt_#in~a#1, mulflt_#in~b#1;assume { :end_inline_mulflt } true;main2_~r_mul~0#1 := main2_#t~ret15#1;havoc main2_#t~ret15#1; [2025-02-07 21:58:33,106 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L323: main_#t~ret17#1 := main1_#res#1;havoc main1_#t~nondet2#1, main1_~IN~0#1, main1_~x~0#1, main1_~result~0#1;assume { :end_inline_main1 } true; [2025-02-07 21:58:33,106 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L311: SUMMARY for call __VERIFIER_assert((if 0bv32 == main2_~tmp___1~0#1 then 1bv32 else 0bv32)); srcloc: null [2025-02-07 21:58:33,106 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L303: assume ~bvugt~32(main2_~r_mul~0#1, main2_~zero~0#1);main2_~tmp___0~0#1 := 1bv32; [2025-02-07 21:58:33,106 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L303: assume !~bvugt~32(main2_~r_mul~0#1, main2_~zero~0#1);main2_~tmp___0~0#1 := 0bv32; [2025-02-07 21:58:33,106 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L299: assume 0bv32 == main2_~sa~0#1; [2025-02-07 21:58:33,106 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L299: assume !(0bv32 == main2_~sa~0#1); [2025-02-07 21:58:33,187 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2025-02-07 21:58:33,187 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 21:58:33,195 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 21:58:33,195 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 21:58:33,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:58:33 BoogieIcfgContainer [2025-02-07 21:58:33,195 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 21:58:33,198 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 21:58:33,198 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 21:58:33,202 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 21:58:33,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 09:58:27" (1/3) ... [2025-02-07 21:58:33,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d59fdc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:58:33, skipping insertion in model container [2025-02-07 21:58:33,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:58:28" (2/3) ... [2025-02-07 21:58:33,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d59fdc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:58:33, skipping insertion in model container [2025-02-07 21:58:33,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:58:33" (3/3) ... [2025-02-07 21:58:33,205 INFO L128 eAbstractionObserver]: Analyzing ICFG square_2+soft_float_2a.c.cil.c [2025-02-07 21:58:33,214 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 21:58:33,215 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG square_2+soft_float_2a.c.cil.c that has 3 procedures, 53 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-02-07 21:58:33,249 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 21:58:33,256 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;@28f474e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 21:58:33,256 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-07 21:58:33,258 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 34 states have (on average 1.6176470588235294) internal successors, (55), 40 states have internal predecessors, (55), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-07 21:58:33,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-07 21:58:33,262 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:58:33,262 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-07 21:58:33,262 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:58:33,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:58:33,266 INFO L85 PathProgramCache]: Analyzing trace with hash -679168152, now seen corresponding path program 1 times [2025-02-07 21:58:33,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 21:58:33,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [548355768] [2025-02-07 21:58:33,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:58:33,275 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 21:58:33,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 21:58:33,278 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 21:58:33,280 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 21:58:33,313 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-07 21:58:33,623 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-07 21:58:33,623 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:58:33,623 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:58:33,636 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-07 21:58:33,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 21:58:33,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 21:58:33,672 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 21:58:33,673 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 21:58:33,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [548355768] [2025-02-07 21:58:33,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [548355768] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 21:58:33,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 21:58:33,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 21:58:33,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681538815] [2025-02-07 21:58:33,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 21:58:33,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 21:58:33,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 21:58:33,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 21:58:33,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 21:58:33,714 INFO L87 Difference]: Start difference. First operand has 46 states, 34 states have (on average 1.6176470588235294) internal successors, (55), 40 states have internal predecessors, (55), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 21:58:33,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:58:33,738 INFO L93 Difference]: Finished difference Result 64 states and 86 transitions. [2025-02-07 21:58:33,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 21:58:33,739 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-02-07 21:58:33,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:58:33,747 INFO L225 Difference]: With dead ends: 64 [2025-02-07 21:58:33,751 INFO L226 Difference]: Without dead ends: 7 [2025-02-07 21:58:33,754 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 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 21:58:33,755 INFO L435 NwaCegarLoop]: 25 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, 25 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 21:58:33,757 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-07 21:58:33,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2025-02-07 21:58:33,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2025-02-07 21:58:33,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 21:58:33,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2025-02-07 21:58:33,778 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2025-02-07 21:58:33,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:58:33,779 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2025-02-07 21:58:33,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 21:58:33,779 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2025-02-07 21:58:33,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-07 21:58:33,779 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:58:33,779 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-07 21:58:33,807 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 21:58:33,980 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 21:58:33,981 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:58:33,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:58:33,981 INFO L85 PathProgramCache]: Analyzing trace with hash -679138361, now seen corresponding path program 1 times [2025-02-07 21:58:33,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 21:58:33,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1542472282] [2025-02-07 21:58:33,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:58:33,982 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 21:58:33,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 21:58:33,985 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 21:58:33,986 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 21:58:34,006 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-07 21:58:50,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-07 21:58:50,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:58:50,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 21:58:50,385 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-07 21:58:50,421 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-07 21:58:51,690 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-07 21:58:51,691 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:58:51,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 21:58:51,722 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-02-07 21:58:51,722 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-07 21:58:51,723 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-02-07 21:58:51,724 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-02-07 21:58:51,743 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 (3)] Ended with exit code 0 [2025-02-07 21:58:51,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /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 21:58:51,931 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-07 21:58:51,941 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 21:58:51,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 09:58:51 BoogieIcfgContainer [2025-02-07 21:58:51,943 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 21:58:51,943 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 21:58:51,943 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 21:58:51,943 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 21:58:51,944 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:58:33" (3/4) ... [2025-02-07 21:58:51,944 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-02-07 21:58:51,964 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 7. [2025-02-07 21:58:51,989 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-07 21:58:51,989 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-07 21:58:51,989 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 21:58:51,989 INFO L158 Benchmark]: Toolchain (without parser) took 24043.07ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 74.9MB in the end (delta: 16.6MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2025-02-07 21:58:51,990 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:58:51,990 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.49ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 76.6MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 21:58:51,990 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.69ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 75.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:58:51,990 INFO L158 Benchmark]: Boogie Preprocessor took 50.51ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 73.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:58:51,990 INFO L158 Benchmark]: IcfgBuilder took 4894.56ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 54.6MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 21:58:51,991 INFO L158 Benchmark]: TraceAbstraction took 18744.81ms. Allocated memory is still 117.4MB. Free memory was 54.0MB in the beginning and 79.9MB in the end (delta: -26.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:58:51,991 INFO L158 Benchmark]: Witness Printer took 45.84ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 74.9MB in the end (delta: 5.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:58:51,992 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.49ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 76.6MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.69ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 75.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.51ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 73.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 4894.56ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 54.6MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 18744.81ms. Allocated memory is still 117.4MB. Free memory was 54.0MB in the beginning and 79.9MB in the end (delta: -26.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 45.84ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 74.9MB in the end (delta: 5.1MB). 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 - CounterExampleResult [Line: 48]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [result=1.398437261581421] [L47] COND TRUE !(result >= 0.0f && result < 1.398f) [L48] reach_error() - UnprovableResult [Line: 60]: 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, 53 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 18.7s, OverallIterations: 2, TraceHistogramMax: 1, 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, 25 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, 25 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 16.7s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 19 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 proved your program to be incorrect! [2025-02-07 21:58:52,031 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE