./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/square_4+soft_float_1-2a.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_4+soft_float_1-2a.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 964037bccd5af2bec8208ce0f4b08447d41303350ff91bfe4b13e42b362dc54b --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 21:59:07,763 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 21:59:07,823 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 21:59:07,829 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 21:59:07,829 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 21:59:07,853 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 21:59:07,854 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 21:59:07,854 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 21:59:07,855 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 21:59:07,855 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 21:59:07,855 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 21:59:07,855 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 21:59:07,855 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 21:59:07,855 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 21:59:07,855 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 21:59:07,856 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 21:59:07,856 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 21:59:07,856 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 21:59:07,857 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 21:59:07,857 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 21:59:07,857 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 21:59:07,857 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 21:59:07,857 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 21:59:07,857 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 21:59:07,857 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 21:59:07,857 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 21:59:07,857 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 21:59:07,857 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 21:59:07,857 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 21:59:07,857 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 21:59:07,857 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 21:59:07,858 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 21:59:07,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:59:07,858 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 21:59:07,858 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 21:59:07,858 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 21:59:07,858 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 21:59:07,858 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 21:59:07,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 21:59:07,858 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 21:59:07,859 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 21:59:07,859 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 21:59:07,859 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 21:59:07,859 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 -> 964037bccd5af2bec8208ce0f4b08447d41303350ff91bfe4b13e42b362dc54b [2025-02-07 21:59:08,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 21:59:08,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 21:59:08,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 21:59:08,123 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 21:59:08,123 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 21:59:08,124 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_4+soft_float_1-2a.c.cil.c [2025-02-07 21:59:09,287 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ee52d5619/837009d4b54f4f49880f207b6f267961/FLAGbca840041 [2025-02-07 21:59:09,499 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 21:59:09,503 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/square_4+soft_float_1-2a.c.cil.c [2025-02-07 21:59:09,509 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ee52d5619/837009d4b54f4f49880f207b6f267961/FLAGbca840041 [2025-02-07 21:59:09,832 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ee52d5619/837009d4b54f4f49880f207b6f267961 [2025-02-07 21:59:09,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 21:59:09,835 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 21:59:09,836 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 21:59:09,836 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 21:59:09,839 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 21:59:09,839 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:59:09" (1/1) ... [2025-02-07 21:59:09,843 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c4e530b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:09, skipping insertion in model container [2025-02-07 21:59:09,843 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:59:09" (1/1) ... [2025-02-07 21:59:09,864 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 21:59:09,971 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_4+soft_float_1-2a.c.cil.c[1999,2012] [2025-02-07 21:59:09,978 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/square_4+soft_float_1-2a.c.cil.c[2393,2406] [2025-02-07 21:59:10,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:59:10,029 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 21:59:10,039 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_4+soft_float_1-2a.c.cil.c[1999,2012] [2025-02-07 21:59:10,040 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_4+soft_float_1-2a.c.cil.c[2393,2406] [2025-02-07 21:59:10,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:59:10,067 INFO L204 MainTranslator]: Completed translation [2025-02-07 21:59:10,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:10 WrapperNode [2025-02-07 21:59:10,067 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 21:59:10,068 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 21:59:10,068 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 21:59:10,068 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 21:59:10,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:10" (1/1) ... [2025-02-07 21:59:10,080 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:10" (1/1) ... [2025-02-07 21:59:10,104 INFO L138 Inliner]: procedures = 27, calls = 20, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 211 [2025-02-07 21:59:10,104 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 21:59:10,105 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 21:59:10,105 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 21:59:10,105 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 21:59:10,111 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:10" (1/1) ... [2025-02-07 21:59:10,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:10" (1/1) ... [2025-02-07 21:59:10,113 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:10" (1/1) ... [2025-02-07 21:59:10,130 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 21:59:10,133 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:10" (1/1) ... [2025-02-07 21:59:10,133 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:10" (1/1) ... [2025-02-07 21:59:10,137 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:10" (1/1) ... [2025-02-07 21:59:10,141 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:10" (1/1) ... [2025-02-07 21:59:10,142 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:10" (1/1) ... [2025-02-07 21:59:10,142 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:10" (1/1) ... [2025-02-07 21:59:10,143 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 21:59:10,144 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 21:59:10,144 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 21:59:10,144 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 21:59:10,145 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:10" (1/1) ... [2025-02-07 21:59:10,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:59:10,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:59:10,180 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 21:59:10,182 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 21:59:10,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 21:59:10,197 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2025-02-07 21:59:10,197 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2025-02-07 21:59:10,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 21:59:10,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 21:59:10,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 21:59:10,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-07 21:59:10,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-07 21:59:10,251 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 21:59:10,253 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 21:59:10,520 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L320: main2_#t~ret26#1 := addflt_#res#1;havoc addflt_#t~bitwise9#1, addflt_#t~bitwise10#1, addflt_#t~bitwise11#1, addflt_#t~bitwise12#1, addflt_#t~bitwise13#1, addflt_~a#1, addflt_~b#1, addflt_~res~1#1, addflt_~ma~0#1, addflt_~mb~0#1, addflt_~delta~0#1, addflt_~ea~0#1, addflt_~eb~0#1, addflt_~tmp~0#1, addflt_~__retres10~0#1;havoc addflt_#in~a#1, addflt_#in~b#1;assume { :end_inline_addflt } true;main2_~r_add~0#1 := main2_#t~ret26#1;havoc main2_#t~ret26#1; [2025-02-07 21:59:10,520 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L382: main2_~tmp___8~0#1 := main2_~tmp___7~0#1; [2025-02-07 21:59:10,521 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L345: main2_~tmp___4~0#1 := main2_~tmp___3~0#1; [2025-02-07 21:59:10,521 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L374: assume main2_~r_add~0#1 % 4294967296 < main2_~b~0#1 % 4294967296;main2_~tmp___8~0#1 := -1; [2025-02-07 21:59:10,521 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L374: assume !(main2_~r_add~0#1 % 4294967296 < main2_~b~0#1 % 4294967296); [2025-02-07 21:59:10,521 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L337: assume main2_~r_add~0#1 % 4294967296 < main2_~b~0#1 % 4294967296;main2_~tmp___4~0#1 := -1; [2025-02-07 21:59:10,521 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L337: assume !(main2_~r_add~0#1 % 4294967296 < main2_~b~0#1 % 4294967296); [2025-02-07 21:59:10,521 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L391: SUMMARY for call __VERIFIER_assert(main2_~tmp___9~0#1); srcloc: null [2025-02-07 21:59:10,521 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 21:59:10,521 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2025-02-07 21:59:10,521 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L404: 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 21:59:10,522 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L371: assume 0 == main2_~tmp___6~0#1;main2_~tmp___9~0#1 := 1; [2025-02-07 21:59:10,522 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L371: assume !(0 == main2_~tmp___6~0#1); [2025-02-07 21:59:10,522 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L359: assume 0 == main2_~sb~0#1; [2025-02-07 21:59:10,522 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L359: assume !(0 == main2_~sb~0#1); [2025-02-07 21:59:10,522 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L322: assume main2_~sa~0#1 > 0; [2025-02-07 21:59:10,522 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L322: assume !(main2_~sa~0#1 > 0); [2025-02-07 21:59:10,522 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L384: assume 0 == main2_~tmp___8~0#1;main2_~tmp___9~0#1 := 1; [2025-02-07 21:59:10,523 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L384: assume !(0 == main2_~tmp___8~0#1);main2_~tmp___9~0#1 := 0; [2025-02-07 21:59:10,523 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L335: SUMMARY for call __VERIFIER_assert((if main2_~tmp___2~0#1 >= 0 then 1 else 0)); srcloc: null [2025-02-07 21:59:10,523 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L397: main2_~__retres23~0#1 := 0;main2_#res#1 := main2_~__retres23~0#1; [2025-02-07 21:59:10,523 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L364: assume main2_~r_add~0#1 % 4294967296 > main2_~a~0#1 % 4294967296;main2_~tmp___5~0#1 := 1; [2025-02-07 21:59:10,523 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L364: assume !(main2_~r_add~0#1 % 4294967296 > main2_~a~0#1 % 4294967296);main2_~tmp___5~0#1 := 0; [2025-02-07 21:59:10,523 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L327: assume main2_~r_add~0#1 % 4294967296 > main2_~a~0#1 % 4294967296;main2_~tmp___1~0#1 := 1; [2025-02-07 21:59:10,523 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L327: assume !(main2_~r_add~0#1 % 4294967296 > main2_~a~0#1 % 4294967296);main2_~tmp___1~0#1 := 0; [2025-02-07 21:59:10,523 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L356: assume 0 == main2_~sa~0#1; [2025-02-07 21:59:10,523 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L356: assume !(0 == main2_~sa~0#1); [2025-02-07 21:59:10,523 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L323: assume main2_~sb~0#1 > 0; [2025-02-07 21:59:10,524 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L323: assume !(main2_~sb~0#1 > 0); [2025-02-07 21:59:10,524 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L348: SUMMARY for call __VERIFIER_assert((if main2_~tmp___4~0#1 >= 0 then 1 else 0)); srcloc: null [2025-02-07 21:59:10,524 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L377: assume main2_~r_add~0#1 % 4294967296 > main2_~b~0#1 % 4294967296;main2_~tmp___7~0#1 := 1; [2025-02-07 21:59:10,524 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L377: assume !(main2_~r_add~0#1 % 4294967296 > main2_~b~0#1 % 4294967296);main2_~tmp___7~0#1 := 0; [2025-02-07 21:59:10,524 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L406: main_#t~ret29#1 := main2_#res#1;havoc main2_#t~nondet19#1, main2_#t~nondet20#1, main2_#t~nondet21#1, main2_#t~nondet22#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_add~0#1, main2_~zero~0#1, main2_~sa~0#1, main2_~sb~0#1, main2_~tmp~2#1, main2_~tmp___0~0#1, main2_~tmp___1~0#1, main2_~tmp___2~0#1, main2_~tmp___3~0#1, main2_~tmp___4~0#1, main2_~tmp___5~0#1, main2_~tmp___6~0#1, main2_~tmp___7~0#1, main2_~tmp___8~0#1, main2_~tmp___9~0#1, main2_~__retres23~0#1;assume { :end_inline_main2 } true;assume -2147483648 <= main_#t~ret29#1 && main_#t~ret29#1 <= 2147483647; [2025-02-07 21:59:10,524 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L340: assume main2_~r_add~0#1 % 4294967296 > main2_~b~0#1 % 4294967296;main2_~tmp___3~0#1 := 1; [2025-02-07 21:59:10,524 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L340: assume !(main2_~r_add~0#1 % 4294967296 > main2_~b~0#1 % 4294967296);main2_~tmp___3~0#1 := 0; [2025-02-07 21:59:10,524 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L369: main2_~tmp___6~0#1 := main2_~tmp___5~0#1; [2025-02-07 21:59:10,524 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L332: main2_~tmp___2~0#1 := main2_~tmp___1~0#1; [2025-02-07 21:59:10,524 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L361: assume main2_~r_add~0#1 % 4294967296 < main2_~a~0#1 % 4294967296;main2_~tmp___6~0#1 := -1; [2025-02-07 21:59:10,524 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L361: assume !(main2_~r_add~0#1 % 4294967296 < main2_~a~0#1 % 4294967296); [2025-02-07 21:59:10,524 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L324: assume main2_~r_add~0#1 % 4294967296 < main2_~a~0#1 % 4294967296;main2_~tmp___2~0#1 := -1; [2025-02-07 21:59:10,525 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L324: assume !(main2_~r_add~0#1 % 4294967296 < main2_~a~0#1 % 4294967296); [2025-02-07 21:59:10,551 INFO L? ?]: Removed 68 outVars from TransFormulas that were not future-live. [2025-02-07 21:59:10,552 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 21:59:10,573 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 21:59:10,574 INFO L337 CfgBuilder]: Removed 1 assume(true) statements. [2025-02-07 21:59:10,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:59:10 BoogieIcfgContainer [2025-02-07 21:59:10,574 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 21:59:10,578 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 21:59:10,578 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 21:59:10,580 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 21:59:10,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 09:59:09" (1/3) ... [2025-02-07 21:59:10,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c6d46f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:59:10, skipping insertion in model container [2025-02-07 21:59:10,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:10" (2/3) ... [2025-02-07 21:59:10,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c6d46f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:59:10, skipping insertion in model container [2025-02-07 21:59:10,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:59:10" (3/3) ... [2025-02-07 21:59:10,582 INFO L128 eAbstractionObserver]: Analyzing ICFG square_4+soft_float_1-2a.c.cil.c [2025-02-07 21:59:10,593 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 21:59:10,595 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG square_4+soft_float_1-2a.c.cil.c that has 3 procedures, 81 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-02-07 21:59:10,634 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 21:59:10,641 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;@53236e71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 21:59:10,642 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-07 21:59:10,644 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 65 states have (on average 1.5692307692307692) internal successors, (102), 72 states have internal predecessors, (102), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-07 21:59:10,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-07 21:59:10,648 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:59:10,648 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-07 21:59:10,648 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:59:10,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:59:10,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1480424138, now seen corresponding path program 1 times [2025-02-07 21:59:10,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:59:10,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341098191] [2025-02-07 21:59:10,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:59:10,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:59:10,699 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-07 21:59:10,708 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-07 21:59:10,709 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:59:10,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:59:10,738 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 21:59:10,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 21:59:10,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341098191] [2025-02-07 21:59:10,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341098191] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 21:59:10,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 21:59:10,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 21:59:10,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094350638] [2025-02-07 21:59:10,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 21:59:10,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 21:59:10,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 21:59:10,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 21:59:10,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 21:59:10,760 INFO L87 Difference]: Start difference. First operand has 80 states, 65 states have (on average 1.5692307692307692) internal successors, (102), 72 states have internal predecessors, (102), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) 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 21:59:10,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:59:10,775 INFO L93 Difference]: Finished difference Result 98 states and 135 transitions. [2025-02-07 21:59:10,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 21:59:10,776 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 21:59:10,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:59:10,779 INFO L225 Difference]: With dead ends: 98 [2025-02-07 21:59:10,779 INFO L226 Difference]: Without dead ends: 7 [2025-02-07 21:59:10,784 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 21:59:10,785 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 21:59:10,786 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 21:59:10,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2025-02-07 21:59:10,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2025-02-07 21:59:10,802 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 21:59:10,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2025-02-07 21:59:10,805 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2025-02-07 21:59:10,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:59:10,805 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2025-02-07 21:59:10,805 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 21:59:10,805 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2025-02-07 21:59:10,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-07 21:59:10,806 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:59:10,806 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-07 21:59:10,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 21:59:10,806 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:59:10,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:59:10,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1480453929, now seen corresponding path program 1 times [2025-02-07 21:59:10,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:59:10,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636256663] [2025-02-07 21:59:10,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:59:10,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:59:10,816 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-07 21:59:10,820 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-07 21:59:10,821 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:59:10,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 21:59:10,821 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-07 21:59:10,822 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-07 21:59:10,828 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-07 21:59:10,828 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:59:10,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 21:59:10,837 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-07 21:59:10,837 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-07 21:59:10,838 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-02-07 21:59:10,839 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-02-07 21:59:10,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-07 21:59:10,842 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-07 21:59:10,848 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 21:59:10,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 09:59:10 BoogieIcfgContainer [2025-02-07 21:59:10,850 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 21:59:10,851 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 21:59:10,851 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 21:59:10,851 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 21:59:10,851 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:59:10" (3/4) ... [2025-02-07 21:59:10,853 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-07 21:59:10,853 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 21:59:10,854 INFO L158 Benchmark]: Toolchain (without parser) took 1018.68ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 45.9MB in the end (delta: 64.6MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-02-07 21:59:10,854 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:59:10,854 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.85ms. Allocated memory is still 142.6MB. Free memory was 110.1MB in the beginning and 95.4MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 21:59:10,854 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.24ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 93.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:59:10,855 INFO L158 Benchmark]: Boogie Preprocessor took 38.76ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 91.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:59:10,855 INFO L158 Benchmark]: IcfgBuilder took 430.51ms. Allocated memory is still 142.6MB. Free memory was 91.8MB in the beginning and 65.9MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-07 21:59:10,855 INFO L158 Benchmark]: TraceAbstraction took 272.66ms. Allocated memory is still 142.6MB. Free memory was 65.4MB in the beginning and 46.4MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 21:59:10,855 INFO L158 Benchmark]: Witness Printer took 2.62ms. Allocated memory is still 142.6MB. Free memory was 46.4MB in the beginning and 45.9MB in the end (delta: 443.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:59:10,856 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.85ms. Allocated memory is still 142.6MB. Free memory was 110.1MB in the beginning and 95.4MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.24ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 93.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.76ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 91.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 430.51ms. Allocated memory is still 142.6MB. Free memory was 91.8MB in the beginning and 65.9MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 272.66ms. Allocated memory is still 142.6MB. Free memory was 65.4MB in the beginning and 46.4MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 2.62ms. Allocated memory is still 142.6MB. Free memory was 46.4MB in the beginning and 45.9MB in the end (delta: 443.2kB). 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: [L403] COND TRUE __VERIFIER_nondet_int() [L404] 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 < 1.39844f) [L48] reach_error() - UnprovableResult [Line: 61]: 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, 81 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=80occurred 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 21:59:10,868 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_4+soft_float_1-2a.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 964037bccd5af2bec8208ce0f4b08447d41303350ff91bfe4b13e42b362dc54b --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 21:59:12,988 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 21:59:13,087 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-07 21:59:13,091 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 21:59:13,092 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 21:59:13,115 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 21:59:13,116 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 21:59:13,116 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 21:59:13,116 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 21:59:13,116 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 21:59:13,116 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 21:59:13,116 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 21:59:13,116 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 21:59:13,116 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 21:59:13,116 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 21:59:13,118 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 21:59:13,118 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 21:59:13,118 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 21:59:13,119 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 21:59:13,119 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 21:59:13,119 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 21:59:13,119 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 21:59:13,119 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 21:59:13,119 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-07 21:59:13,120 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-07 21:59:13,120 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-07 21:59:13,120 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 21:59:13,120 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 21:59:13,120 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 21:59:13,120 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 21:59:13,120 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 21:59:13,121 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 21:59:13,121 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 21:59:13,121 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 21:59:13,121 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:59:13,121 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 21:59:13,121 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 21:59:13,121 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 21:59:13,121 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 21:59:13,122 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-07 21:59:13,122 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-07 21:59:13,122 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 21:59:13,122 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 21:59:13,122 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 21:59:13,122 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 21:59:13,122 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 -> 964037bccd5af2bec8208ce0f4b08447d41303350ff91bfe4b13e42b362dc54b [2025-02-07 21:59:13,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 21:59:13,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 21:59:13,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 21:59:13,369 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 21:59:13,369 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 21:59:13,371 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_4+soft_float_1-2a.c.cil.c [2025-02-07 21:59:14,599 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/965a3557a/09bc7d8a61be417f95a168189e1664ee/FLAG3f59e7bbf [2025-02-07 21:59:14,840 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 21:59:14,840 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/square_4+soft_float_1-2a.c.cil.c [2025-02-07 21:59:14,850 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/965a3557a/09bc7d8a61be417f95a168189e1664ee/FLAG3f59e7bbf [2025-02-07 21:59:14,865 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/965a3557a/09bc7d8a61be417f95a168189e1664ee [2025-02-07 21:59:14,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 21:59:14,869 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 21:59:14,871 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 21:59:14,872 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 21:59:14,874 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 21:59:14,875 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:59:14" (1/1) ... [2025-02-07 21:59:14,876 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38de72cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:14, skipping insertion in model container [2025-02-07 21:59:14,876 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:59:14" (1/1) ... [2025-02-07 21:59:14,897 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 21:59:15,003 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_4+soft_float_1-2a.c.cil.c[1999,2012] [2025-02-07 21:59:15,007 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/square_4+soft_float_1-2a.c.cil.c[2393,2406] [2025-02-07 21:59:15,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:59:15,049 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 21:59:15,064 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_4+soft_float_1-2a.c.cil.c[1999,2012] [2025-02-07 21:59:15,065 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_4+soft_float_1-2a.c.cil.c[2393,2406] [2025-02-07 21:59:15,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:59:15,100 INFO L204 MainTranslator]: Completed translation [2025-02-07 21:59:15,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:15 WrapperNode [2025-02-07 21:59:15,100 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 21:59:15,101 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 21:59:15,101 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 21:59:15,101 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 21:59:15,105 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:15" (1/1) ... [2025-02-07 21:59:15,112 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:15" (1/1) ... [2025-02-07 21:59:15,133 INFO L138 Inliner]: procedures = 28, calls = 20, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 168 [2025-02-07 21:59:15,133 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 21:59:15,134 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 21:59:15,134 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 21:59:15,134 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 21:59:15,142 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:15" (1/1) ... [2025-02-07 21:59:15,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:15" (1/1) ... [2025-02-07 21:59:15,146 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:15" (1/1) ... [2025-02-07 21:59:15,159 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 21:59:15,159 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:15" (1/1) ... [2025-02-07 21:59:15,159 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:15" (1/1) ... [2025-02-07 21:59:15,171 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:15" (1/1) ... [2025-02-07 21:59:15,172 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:15" (1/1) ... [2025-02-07 21:59:15,177 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:15" (1/1) ... [2025-02-07 21:59:15,178 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:15" (1/1) ... [2025-02-07 21:59:15,183 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 21:59:15,185 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 21:59:15,185 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 21:59:15,185 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 21:59:15,186 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:15" (1/1) ... [2025-02-07 21:59:15,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:59:15,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:59:15,223 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 21:59:15,230 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 21:59:15,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 21:59:15,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-07 21:59:15,245 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2025-02-07 21:59:15,245 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2025-02-07 21:59:15,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 21:59:15,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 21:59:15,245 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-07 21:59:15,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-07 21:59:15,321 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 21:59:15,324 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 21:59:20,113 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L320: main2_#t~ret14#1 := addflt_#res#1;havoc addflt_~a#1, addflt_~b#1, addflt_~res~1#1, addflt_~ma~0#1, addflt_~mb~0#1, addflt_~delta~0#1, addflt_~ea~0#1, addflt_~eb~0#1, addflt_~tmp~0#1, addflt_~__retres10~0#1;havoc addflt_#in~a#1, addflt_#in~b#1;assume { :end_inline_addflt } true;main2_~r_add~0#1 := main2_#t~ret14#1;havoc main2_#t~ret14#1; [2025-02-07 21:59:20,113 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L382: main2_~tmp___8~0#1 := main2_~tmp___7~0#1; [2025-02-07 21:59:20,113 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L345: main2_~tmp___4~0#1 := main2_~tmp___3~0#1; [2025-02-07 21:59:20,113 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L374: assume ~bvult~32(main2_~r_add~0#1, main2_~b~0#1);main2_~tmp___8~0#1 := 4294967295bv32; [2025-02-07 21:59:20,113 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L374: assume !~bvult~32(main2_~r_add~0#1, main2_~b~0#1); [2025-02-07 21:59:20,113 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L337: assume ~bvult~32(main2_~r_add~0#1, main2_~b~0#1);main2_~tmp___4~0#1 := 4294967295bv32; [2025-02-07 21:59:20,113 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L337: assume !~bvult~32(main2_~r_add~0#1, main2_~b~0#1); [2025-02-07 21:59:20,114 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L391: SUMMARY for call __VERIFIER_assert(main2_~tmp___9~0#1); srcloc: null [2025-02-07 21:59:20,114 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L-1: #t~ret18#1 := main_#res#1;havoc main_#t~nondet15#1, main_#t~ret16#1, main_#t~ret17#1;assume { :end_inline_main } true; [2025-02-07 21:59:20,114 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2025-02-07 21:59:20,114 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L404: main_#t~ret16#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 21:59:20,114 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L371: assume 0bv32 == main2_~tmp___6~0#1;main2_~tmp___9~0#1 := 1bv32; [2025-02-07 21:59:20,114 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L371: assume !(0bv32 == main2_~tmp___6~0#1); [2025-02-07 21:59:20,114 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L359: assume 0bv32 == main2_~sb~0#1; [2025-02-07 21:59:20,114 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L359: assume !(0bv32 == main2_~sb~0#1); [2025-02-07 21:59:20,114 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L322: assume ~bvsgt~32(main2_~sa~0#1, 0bv32); [2025-02-07 21:59:20,115 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L322: assume !~bvsgt~32(main2_~sa~0#1, 0bv32); [2025-02-07 21:59:20,115 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L384: assume 0bv32 == main2_~tmp___8~0#1;main2_~tmp___9~0#1 := 1bv32; [2025-02-07 21:59:20,115 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L384: assume !(0bv32 == main2_~tmp___8~0#1);main2_~tmp___9~0#1 := 0bv32; [2025-02-07 21:59:20,115 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L335: SUMMARY for call __VERIFIER_assert((if ~bvsge~32(main2_~tmp___2~0#1, 0bv32) then 1bv32 else 0bv32)); srcloc: null [2025-02-07 21:59:20,115 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L397: main2_~__retres23~0#1 := 0bv32;main2_#res#1 := main2_~__retres23~0#1; [2025-02-07 21:59:20,115 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L364: assume ~bvugt~32(main2_~r_add~0#1, main2_~a~0#1);main2_~tmp___5~0#1 := 1bv32; [2025-02-07 21:59:20,115 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L364: assume !~bvugt~32(main2_~r_add~0#1, main2_~a~0#1);main2_~tmp___5~0#1 := 0bv32; [2025-02-07 21:59:20,115 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L327: assume ~bvugt~32(main2_~r_add~0#1, main2_~a~0#1);main2_~tmp___1~0#1 := 1bv32; [2025-02-07 21:59:20,115 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L327: assume !~bvugt~32(main2_~r_add~0#1, main2_~a~0#1);main2_~tmp___1~0#1 := 0bv32; [2025-02-07 21:59:20,115 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L356: assume 0bv32 == main2_~sa~0#1; [2025-02-07 21:59:20,115 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L356: assume !(0bv32 == main2_~sa~0#1); [2025-02-07 21:59:20,115 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L323: assume ~bvsgt~32(main2_~sb~0#1, 0bv32); [2025-02-07 21:59:20,115 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L323: assume !~bvsgt~32(main2_~sb~0#1, 0bv32); [2025-02-07 21:59:20,116 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L348: SUMMARY for call __VERIFIER_assert((if ~bvsge~32(main2_~tmp___4~0#1, 0bv32) then 1bv32 else 0bv32)); srcloc: null [2025-02-07 21:59:20,116 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L377: assume ~bvugt~32(main2_~r_add~0#1, main2_~b~0#1);main2_~tmp___7~0#1 := 1bv32; [2025-02-07 21:59:20,116 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L377: assume !~bvugt~32(main2_~r_add~0#1, main2_~b~0#1);main2_~tmp___7~0#1 := 0bv32; [2025-02-07 21:59:20,116 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L406: main_#t~ret17#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_~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_add~0#1, main2_~zero~0#1, main2_~sa~0#1, main2_~sb~0#1, main2_~tmp~2#1, main2_~tmp___0~0#1, main2_~tmp___1~0#1, main2_~tmp___2~0#1, main2_~tmp___3~0#1, main2_~tmp___4~0#1, main2_~tmp___5~0#1, main2_~tmp___6~0#1, main2_~tmp___7~0#1, main2_~tmp___8~0#1, main2_~tmp___9~0#1, main2_~__retres23~0#1;assume { :end_inline_main2 } true; [2025-02-07 21:59:20,116 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L340: assume ~bvugt~32(main2_~r_add~0#1, main2_~b~0#1);main2_~tmp___3~0#1 := 1bv32; [2025-02-07 21:59:20,116 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L340: assume !~bvugt~32(main2_~r_add~0#1, main2_~b~0#1);main2_~tmp___3~0#1 := 0bv32; [2025-02-07 21:59:20,116 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L369: main2_~tmp___6~0#1 := main2_~tmp___5~0#1; [2025-02-07 21:59:20,116 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L332: main2_~tmp___2~0#1 := main2_~tmp___1~0#1; [2025-02-07 21:59:20,116 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L361: assume ~bvult~32(main2_~r_add~0#1, main2_~a~0#1);main2_~tmp___6~0#1 := 4294967295bv32; [2025-02-07 21:59:20,116 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L361: assume !~bvult~32(main2_~r_add~0#1, main2_~a~0#1); [2025-02-07 21:59:20,116 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L324: assume ~bvult~32(main2_~r_add~0#1, main2_~a~0#1);main2_~tmp___2~0#1 := 4294967295bv32; [2025-02-07 21:59:20,116 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L324: assume !~bvult~32(main2_~r_add~0#1, main2_~a~0#1); [2025-02-07 21:59:20,162 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2025-02-07 21:59:20,162 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 21:59:20,168 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 21:59:20,168 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 21:59:20,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:59:20 BoogieIcfgContainer [2025-02-07 21:59:20,169 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 21:59:20,170 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 21:59:20,170 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 21:59:20,173 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 21:59:20,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 09:59:14" (1/3) ... [2025-02-07 21:59:20,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ad9b6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:59:20, skipping insertion in model container [2025-02-07 21:59:20,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:59:15" (2/3) ... [2025-02-07 21:59:20,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ad9b6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:59:20, skipping insertion in model container [2025-02-07 21:59:20,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:59:20" (3/3) ... [2025-02-07 21:59:20,175 INFO L128 eAbstractionObserver]: Analyzing ICFG square_4+soft_float_1-2a.c.cil.c [2025-02-07 21:59:20,184 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 21:59:20,185 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG square_4+soft_float_1-2a.c.cil.c that has 3 procedures, 57 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-02-07 21:59:20,215 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 21:59:20,223 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;@3cbbd8a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 21:59:20,223 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-07 21:59:20,226 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 41 states have (on average 1.5853658536585367) internal successors, (65), 48 states have internal predecessors, (65), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-07 21:59:20,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-07 21:59:20,229 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:59:20,229 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-07 21:59:20,230 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:59:20,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:59:20,233 INFO L85 PathProgramCache]: Analyzing trace with hash 208335529, now seen corresponding path program 1 times [2025-02-07 21:59:20,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 21:59:20,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [839168342] [2025-02-07 21:59:20,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:59:20,243 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-07 21:59:20,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 21:59:20,246 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-02-07 21:59:20,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-02-07 21:59:20,296 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-07 21:59:20,604 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-07 21:59:20,605 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:59:20,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:59:20,618 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-07 21:59:20,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 21:59:20,630 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 21:59:20,631 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 21:59:20,631 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 21:59:20,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [839168342] [2025-02-07 21:59:20,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [839168342] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 21:59:20,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 21:59:20,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 21:59:20,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033467802] [2025-02-07 21:59:20,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 21:59:20,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 21:59:20,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 21:59:20,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 21:59:20,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 21:59:20,648 INFO L87 Difference]: Start difference. First operand has 56 states, 41 states have (on average 1.5853658536585367) internal successors, (65), 48 states have internal predecessors, (65), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) 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 21:59:20,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:59:20,658 INFO L93 Difference]: Finished difference Result 74 states and 98 transitions. [2025-02-07 21:59:20,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 21:59:20,659 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 21:59:20,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:59:20,662 INFO L225 Difference]: With dead ends: 74 [2025-02-07 21:59:20,662 INFO L226 Difference]: Without dead ends: 7 [2025-02-07 21:59:20,664 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 21:59:20,666 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 21:59:20,666 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 21:59:20,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2025-02-07 21:59:20,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2025-02-07 21:59:20,680 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 21:59:20,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2025-02-07 21:59:20,682 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2025-02-07 21:59:20,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:59:20,683 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2025-02-07 21:59:20,683 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 21:59:20,683 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2025-02-07 21:59:20,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-07 21:59:20,683 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:59:20,683 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-07 21:59:20,714 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 21:59:20,884 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 21:59:20,884 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:59:20,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:59:20,885 INFO L85 PathProgramCache]: Analyzing trace with hash 208365320, now seen corresponding path program 1 times [2025-02-07 21:59:20,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 21:59:20,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1384022298] [2025-02-07 21:59:20,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:59:20,886 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 21:59:20,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 21:59:20,888 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 21:59:20,889 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 21:59:20,912 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes.