./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.3.ufo.UNBOUNDED.pals+Problem12_label06.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/pals_lcr.3.ufo.UNBOUNDED.pals+Problem12_label06.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 ce3fb29712e91707982cc1d90cd5fa002213aad836fd0a7fc53e12556da2c4fe --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 21:53:56,672 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 21:53:56,735 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 21:53:56,742 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 21:53:56,743 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 21:53:56,767 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 21:53:56,768 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 21:53:56,768 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 21:53:56,768 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 21:53:56,769 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 21:53:56,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 21:53:56,769 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 21:53:56,770 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 21:53:56,770 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 21:53:56,770 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 21:53:56,770 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 21:53:56,771 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 21:53:56,771 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 21:53:56,771 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 21:53:56,771 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 21:53:56,771 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 21:53:56,771 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 21:53:56,771 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 21:53:56,771 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 21:53:56,771 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 21:53:56,771 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 21:53:56,771 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 21:53:56,771 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 21:53:56,771 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 21:53:56,772 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 21:53:56,772 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 21:53:56,772 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 21:53:56,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:53:56,772 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 21:53:56,772 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 21:53:56,773 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 21:53:56,773 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 21:53:56,773 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 21:53:56,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 21:53:56,773 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 21:53:56,773 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 21:53:56,773 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 21:53:56,773 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 21:53:56,773 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 -> ce3fb29712e91707982cc1d90cd5fa002213aad836fd0a7fc53e12556da2c4fe [2025-02-07 21:53:57,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 21:53:57,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 21:53:57,050 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 21:53:57,051 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 21:53:57,052 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 21:53:57,053 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.3.ufo.UNBOUNDED.pals+Problem12_label06.c [2025-02-07 21:53:58,248 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/93144ffb5/d003b371742942ea955d9cc7968e3d97/FLAGc9a48a2eb [2025-02-07 21:53:58,671 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 21:53:58,672 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.3.ufo.UNBOUNDED.pals+Problem12_label06.c [2025-02-07 21:53:58,699 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/93144ffb5/d003b371742942ea955d9cc7968e3d97/FLAGc9a48a2eb [2025-02-07 21:53:58,831 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/93144ffb5/d003b371742942ea955d9cc7968e3d97 [2025-02-07 21:53:58,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 21:53:58,835 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 21:53:58,836 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 21:53:58,836 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 21:53:58,839 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 21:53:58,839 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:53:58" (1/1) ... [2025-02-07 21:53:58,841 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30587c02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:53:58, skipping insertion in model container [2025-02-07 21:53:58,842 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:53:58" (1/1) ... [2025-02-07 21:53:58,925 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 21:53:59,190 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/pals_lcr.3.ufo.UNBOUNDED.pals+Problem12_label06.c[6450,6463] [2025-02-07 21:53:59,235 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/pals_lcr.3.ufo.UNBOUNDED.pals+Problem12_label06.c[9267,9280] [2025-02-07 21:53:59,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:53:59,787 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 21:53:59,815 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/pals_lcr.3.ufo.UNBOUNDED.pals+Problem12_label06.c[6450,6463] [2025-02-07 21:53:59,821 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/pals_lcr.3.ufo.UNBOUNDED.pals+Problem12_label06.c[9267,9280] [2025-02-07 21:54:00,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:54:00,155 INFO L204 MainTranslator]: Completed translation [2025-02-07 21:54:00,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:54:00 WrapperNode [2025-02-07 21:54:00,157 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 21:54:00,158 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 21:54:00,159 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 21:54:00,159 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 21:54:00,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:54:00" (1/1) ... [2025-02-07 21:54:00,214 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:54:00" (1/1) ... [2025-02-07 21:54:00,479 INFO L138 Inliner]: procedures = 35, calls = 20, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 4977 [2025-02-07 21:54:00,481 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 21:54:00,481 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 21:54:00,481 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 21:54:00,482 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 21:54:00,489 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:54:00" (1/1) ... [2025-02-07 21:54:00,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:54:00" (1/1) ... [2025-02-07 21:54:00,539 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:54:00" (1/1) ... [2025-02-07 21:54:00,747 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 21:54:00,747 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:54:00" (1/1) ... [2025-02-07 21:54:00,747 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:54:00" (1/1) ... [2025-02-07 21:54:00,879 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:54:00" (1/1) ... [2025-02-07 21:54:00,908 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:54:00" (1/1) ... [2025-02-07 21:54:00,926 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:54:00" (1/1) ... [2025-02-07 21:54:00,942 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:54:00" (1/1) ... [2025-02-07 21:54:00,996 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 21:54:00,997 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 21:54:00,998 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 21:54:00,998 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 21:54:00,998 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:54:00" (1/1) ... [2025-02-07 21:54:01,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:54:01,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:54:01,023 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 21:54:01,030 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 21:54:01,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 21:54:01,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 21:54:01,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 21:54:01,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 21:54:01,126 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 21:54:01,127 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 21:54:05,378 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L103: assume node2_~m2~0#1 == ~id2~0;~st2~0 := 1; [2025-02-07 21:54:05,378 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L103: assume !(node2_~m2~0#1 == ~id2~0); [2025-02-07 21:54:05,378 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L238-1: check_#res#1 := check_~tmp~1#1; [2025-02-07 21:54:05,378 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L107: ~mode2~0 := 0; [2025-02-07 21:54:05,379 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5132: main_#t~ret35#1 := main1_#res#1;havoc main1_#t~nondet5#1, main1_#t~nondet6#1, main1_#t~nondet7#1, main1_#t~nondet8#1, main1_#t~nondet9#1, main1_#t~nondet10#1, main1_#t~nondet11#1, main1_#t~nondet12#1, main1_#t~nondet13#1, main1_#t~nondet14#1, main1_#t~nondet15#1, main1_#t~nondet16#1, main1_#t~nondet17#1, main1_#t~ret18#1, main1_#t~ret19#1, main1_~c1~0#1, main1_~i2~0#1;assume { :end_inline_main1 } true;assume -2147483648 <= main_#t~ret35#1 && main_#t~ret35#1 <= 2147483647; [2025-02-07 21:54:05,379 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L121: assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0; [2025-02-07 21:54:05,379 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L121: assume !(0 != ~mode3~0 % 256);~p3_new~0 := (if (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 <= 127 then (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 else (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 - 256);~mode3~0 := 1; [2025-02-07 21:54:05,379 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L124: assume node3_~m3~0#1 != ~nomsg~0; [2025-02-07 21:54:05,379 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L124: assume !(node3_~m3~0#1 != ~nomsg~0); [2025-02-07 21:54:05,380 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L125: assume node3_~m3~0#1 > ~id3~0;~send3~0 := node3_~m3~0#1; [2025-02-07 21:54:05,380 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L125: assume !(node3_~m3~0#1 > ~id3~0); [2025-02-07 21:54:05,380 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L128: assume node3_~m3~0#1 == ~id3~0;~st3~0 := 1; [2025-02-07 21:54:05,380 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L128: assume !(node3_~m3~0#1 == ~id3~0); [2025-02-07 21:54:05,380 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: main1_#t~ret18#1 := init_#res#1;havoc init_~tmp~0#1;assume { :end_inline_init } true;assume -2147483648 <= main1_#t~ret18#1 && main1_#t~ret18#1 <= 2147483647;main1_~i2~0#1 := main1_#t~ret18#1;havoc main1_#t~ret18#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main1_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; [2025-02-07 21:54:05,380 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L262: havoc assume_abort_if_not_~cond#1;havoc assume_abort_if_not_#in~cond#1;assume { :end_inline_assume_abort_if_not } true;~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;main1_~i2~0#1 := 0; [2025-02-07 21:54:05,380 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L132: ~mode3~0 := 0; [2025-02-07 21:54:05,380 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L67: assume 0 != ~mode1~0 % 256; [2025-02-07 21:54:05,381 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L67: assume !(0 != ~mode1~0 % 256);~p1_new~0 := (if (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 <= 127 then (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 else (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 - 256);~mode1~0 := 1; [2025-02-07 21:54:05,381 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4956-2: calculate_output3_#t~ret31#1 := calculate_output4_#res#1;havoc calculate_output4_~input#1;havoc calculate_output4_#in~input#1;assume { :end_inline_calculate_output4 } true;assume -2147483648 <= calculate_output3_#t~ret31#1 && calculate_output3_#t~ret31#1 <= 2147483647;calculate_output3_#res#1 := calculate_output3_#t~ret31#1;havoc calculate_output3_#t~ret31#1; [2025-02-07 21:54:05,381 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4956: havoc calculate_output3_#t~ret31#1;calculate_output2_#t~ret30#1 := calculate_output3_#res#1;havoc calculate_output3_#t~ret31#1, calculate_output3_~input#1;havoc calculate_output3_#in~input#1;assume { :end_inline_calculate_output3 } true;assume -2147483648 <= calculate_output2_#t~ret30#1 && calculate_output2_#t~ret30#1 <= 2147483647;calculate_output2_#res#1 := calculate_output2_#t~ret30#1;havoc calculate_output2_#t~ret30#1; [2025-02-07 21:54:05,381 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68: assume 255 == (if ~r1~0 % 256 % 4294967296 <= 2147483647 then ~r1~0 % 256 % 4294967296 else ~r1~0 % 256 % 4294967296 - 4294967296);~r1~0 := 2; [2025-02-07 21:54:05,381 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68: assume !(255 == (if ~r1~0 % 256 % 4294967296 <= 2147483647 then ~r1~0 % 256 % 4294967296 else ~r1~0 % 256 % 4294967296 - 4294967296)); [2025-02-07 21:54:05,381 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L71: ~r1~0 := 1 + (if ~r1~0 % 256 % 4294967296 <= 2147483647 then ~r1~0 % 256 % 4294967296 else ~r1~0 % 256 % 4294967296 - 4294967296);node1_~m1~0#1 := ~p3_old~0;~p3_old~0 := ~nomsg~0; [2025-02-07 21:54:05,381 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1987: havoc calculate_output_#t~ret29#1;main2_#t~ret33#1 := calculate_output_#res#1;havoc calculate_output_#t~ret29#1, calculate_output_~input#1;havoc calculate_output_#in~input#1;assume { :end_inline_calculate_output } true;assume -2147483648 <= main2_#t~ret33#1 && main2_#t~ret33#1 <= 2147483647;main2_~output~0#1 := main2_#t~ret33#1;havoc main2_~input~0#1;havoc main2_#t~ret33#1; [2025-02-07 21:54:05,382 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L270: assume true;assume { :begin_inline_node1 } true;havoc node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; [2025-02-07 21:54:05,382 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L270: assume !true;main1_#res#1 := 0; [2025-02-07 21:54:05,382 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L272: havoc node1_~m1~0#1;assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; [2025-02-07 21:54:05,382 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L74: assume node1_~m1~0#1 != ~nomsg~0; [2025-02-07 21:54:05,382 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L74: assume !(node1_~m1~0#1 != ~nomsg~0); [2025-02-07 21:54:05,382 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L273: havoc node2_~m2~0#1;assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; [2025-02-07 21:54:05,382 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L75: assume node1_~m1~0#1 > ~id1~0;~send1~0 := node1_~m1~0#1; [2025-02-07 21:54:05,382 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L75: assume !(node1_~m1~0#1 > ~id1~0); [2025-02-07 21:54:05,383 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L274: havoc node3_~m3~0#1;assume { :end_inline_node3 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; [2025-02-07 21:54:05,383 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L78: assume node1_~m1~0#1 == ~id1~0;~st1~0 := 1; [2025-02-07 21:54:05,383 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L78: assume !(node1_~m1~0#1 == ~id1~0); [2025-02-07 21:54:05,383 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L82: ~mode1~0 := 0; [2025-02-07 21:54:05,383 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L281: main1_#t~ret19#1 := check_#res#1;havoc check_~tmp~1#1;assume { :end_inline_check } true;assume -2147483648 <= main1_#t~ret19#1 && main1_#t~ret19#1 <= 2147483647;main1_~c1~0#1 := main1_#t~ret19#1;havoc main1_#t~ret19#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main1_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; [2025-02-07 21:54:05,383 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L282: havoc assert_~arg#1;havoc assert_#in~arg#1;assume { :end_inline_assert } true; [2025-02-07 21:54:05,383 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L218: assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; [2025-02-07 21:54:05,383 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L218: assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1#1 := 0; [2025-02-07 21:54:05,384 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L219: assume (if ~r1~0 % 256 % 4294967296 <= 2147483647 then ~r1~0 % 256 % 4294967296 else ~r1~0 % 256 % 4294967296 - 4294967296) >= 3; [2025-02-07 21:54:05,384 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L219: assume !((if ~r1~0 % 256 % 4294967296 <= 2147483647 then ~r1~0 % 256 % 4294967296 else ~r1~0 % 256 % 4294967296 - 4294967296) >= 3); [2025-02-07 21:54:05,384 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L222: assume 0 == ~st1~0 + ~st2~0 + ~st3~0; [2025-02-07 21:54:05,384 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L222: assume !(0 == ~st1~0 + ~st2~0 + ~st3~0);check_~tmp~1#1 := 0; [2025-02-07 21:54:05,384 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L224: assume (if ~r1~0 % 256 % 4294967296 <= 2147483647 then ~r1~0 % 256 % 4294967296 else ~r1~0 % 256 % 4294967296 - 4294967296) < 3;check_~tmp~1#1 := 1; [2025-02-07 21:54:05,384 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L224: assume !((if ~r1~0 % 256 % 4294967296 <= 2147483647 then ~r1~0 % 256 % 4294967296 else ~r1~0 % 256 % 4294967296 - 4294967296) < 3); [2025-02-07 21:54:05,384 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L293: assume 0 == assert_~arg#1 % 256; [2025-02-07 21:54:05,384 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L293: assume !(0 == assert_~arg#1 % 256); [2025-02-07 21:54:05,384 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L227: assume 1 == ~st1~0 + ~st2~0 + ~st3~0;check_~tmp~1#1 := 1; [2025-02-07 21:54:05,384 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L227: assume !(1 == ~st1~0 + ~st2~0 + ~st3~0);check_~tmp~1#1 := 0; [2025-02-07 21:54:05,384 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L96: assume 0 != ~mode2~0 % 256;node2_~m2~0#1 := ~p1_old~0;~p1_old~0 := ~nomsg~0; [2025-02-07 21:54:05,385 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L96: assume !(0 != ~mode2~0 % 256);~p2_new~0 := (if (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 <= 127 then (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 else (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 - 256);~mode2~0 := 1; [2025-02-07 21:54:05,385 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3466: havoc calculate_output2_#t~ret30#1;calculate_output_#t~ret29#1 := calculate_output2_#res#1;havoc calculate_output2_#t~ret30#1, calculate_output2_~input#1;havoc calculate_output2_#in~input#1;assume { :end_inline_calculate_output2 } true;assume -2147483648 <= calculate_output_#t~ret29#1 && calculate_output_#t~ret29#1 <= 2147483647;calculate_output_#res#1 := calculate_output_#t~ret29#1;havoc calculate_output_#t~ret29#1; [2025-02-07 21:54:05,385 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L295: assume false;assume false; [2025-02-07 21:54:05,385 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L295: assume !false; [2025-02-07 21:54:05,385 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L32: assume 0 == assume_abort_if_not_~cond#1;assume false; [2025-02-07 21:54:05,385 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L32: assume !(0 == assume_abort_if_not_~cond#1); [2025-02-07 21:54:05,385 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L99: assume node2_~m2~0#1 != ~nomsg~0; [2025-02-07 21:54:05,385 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L99: assume !(node2_~m2~0#1 != ~nomsg~0); [2025-02-07 21:54:05,385 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L100: assume node2_~m2~0#1 > ~id2~0;~send2~0 := node2_~m2~0#1; [2025-02-07 21:54:05,385 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L100: assume !(node2_~m2~0#1 > ~id2~0); [2025-02-07 21:54:05,608 INFO L? ?]: Removed 1386 outVars from TransFormulas that were not future-live. [2025-02-07 21:54:05,608 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 21:54:05,637 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 21:54:05,638 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 21:54:05,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:54:05 BoogieIcfgContainer [2025-02-07 21:54:05,638 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 21:54:05,640 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 21:54:05,640 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 21:54:05,643 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 21:54:05,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 09:53:58" (1/3) ... [2025-02-07 21:54:05,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe1ba4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:54:05, skipping insertion in model container [2025-02-07 21:54:05,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:54:00" (2/3) ... [2025-02-07 21:54:05,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe1ba4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:54:05, skipping insertion in model container [2025-02-07 21:54:05,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:54:05" (3/3) ... [2025-02-07 21:54:05,645 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.UNBOUNDED.pals+Problem12_label06.c [2025-02-07 21:54:05,656 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 21:54:05,658 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.3.ufo.UNBOUNDED.pals+Problem12_label06.c that has 1 procedures, 777 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-02-07 21:54:05,731 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 21:54:05,742 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;@7f669f4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 21:54:05,742 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-07 21:54:05,748 INFO L276 IsEmpty]: Start isEmpty. Operand has 777 states, 769 states have (on average 1.9947984395318596) internal successors, (1534), 776 states have internal predecessors, (1534), 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 21:54:05,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-02-07 21:54:05,754 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:54:05,754 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 21:54:05,755 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:54:05,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:54:05,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1721178686, now seen corresponding path program 1 times [2025-02-07 21:54:05,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:54:05,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669074349] [2025-02-07 21:54:05,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:54:05,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:54:05,833 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-07 21:54:05,867 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-07 21:54:05,867 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:54:05,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:54:05,927 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 21:54:05,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 21:54:05,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669074349] [2025-02-07 21:54:05,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669074349] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 21:54:05,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 21:54:05,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 21:54:05,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314967294] [2025-02-07 21:54:05,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 21:54:05,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 21:54:05,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 21:54:05,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 21:54:05,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 21:54:05,949 INFO L87 Difference]: Start difference. First operand has 777 states, 769 states have (on average 1.9947984395318596) internal successors, (1534), 776 states have internal predecessors, (1534), 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) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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 21:54:05,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:54:05,998 INFO L93 Difference]: Finished difference Result 1527 states and 3024 transitions. [2025-02-07 21:54:05,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 21:54:05,999 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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 23 [2025-02-07 21:54:06,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:54:06,009 INFO L225 Difference]: With dead ends: 1527 [2025-02-07 21:54:06,009 INFO L226 Difference]: Without dead ends: 24 [2025-02-07 21:54:06,018 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 21:54:06,020 INFO L435 NwaCegarLoop]: 1470 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, 1470 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 21:54:06,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-07 21:54:06,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2025-02-07 21:54:06,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2025-02-07 21:54:06,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.0) internal successors, (23), 23 states have internal predecessors, (23), 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 21:54:06,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2025-02-07 21:54:06,050 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 23 [2025-02-07 21:54:06,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:54:06,050 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2025-02-07 21:54:06,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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 21:54:06,051 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2025-02-07 21:54:06,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-02-07 21:54:06,051 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:54:06,051 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 21:54:06,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 21:54:06,052 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:54:06,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:54:06,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1271670915, now seen corresponding path program 1 times [2025-02-07 21:54:06,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:54:06,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137432702] [2025-02-07 21:54:06,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:54:06,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:54:06,062 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-07 21:54:06,077 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-07 21:54:06,077 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:54:06,077 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:54:06,176 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 21:54:06,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 21:54:06,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137432702] [2025-02-07 21:54:06,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137432702] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 21:54:06,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 21:54:06,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 21:54:06,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010925220] [2025-02-07 21:54:06,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 21:54:06,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-07 21:54:06,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 21:54:06,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-07 21:54:06,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 21:54:06,178 INFO L87 Difference]: Start difference. First operand 24 states and 23 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 21:54:06,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:54:06,204 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2025-02-07 21:54:06,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-07 21:54:06,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 23 [2025-02-07 21:54:06,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:54:06,204 INFO L225 Difference]: With dead ends: 24 [2025-02-07 21:54:06,204 INFO L226 Difference]: Without dead ends: 0 [2025-02-07 21:54:06,205 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 21:54:06,205 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-07 21:54:06,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-07 21:54:06,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-07 21:54:06,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-07 21:54:06,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 21:54:06,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-07 21:54:06,207 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2025-02-07 21:54:06,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:54:06,208 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-07 21:54:06,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 21:54:06,208 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-07 21:54:06,208 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-07 21:54:06,210 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-02-07 21:54:06,210 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-02-07 21:54:06,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-07 21:54:06,213 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-07 21:54:06,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-07 21:54:06,227 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 21:54:06,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 09:54:06 BoogieIcfgContainer [2025-02-07 21:54:06,242 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 21:54:06,243 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 21:54:06,243 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 21:54:06,243 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 21:54:06,244 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:54:05" (3/4) ... [2025-02-07 21:54:06,245 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-07 21:54:06,293 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-02-07 21:54:06,300 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-07 21:54:06,306 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-07 21:54:06,312 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-07 21:54:06,566 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-07 21:54:06,566 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-07 21:54:06,567 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 21:54:06,568 INFO L158 Benchmark]: Toolchain (without parser) took 7732.75ms. Allocated memory was 142.6MB in the beginning and 1.0GB in the end (delta: 872.4MB). Free memory was 97.8MB in the beginning and 729.0MB in the end (delta: -631.1MB). Peak memory consumption was 233.7MB. Max. memory is 16.1GB. [2025-02-07 21:54:06,568 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:54:06,568 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1322.20ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 97.8MB in the beginning and 283.7MB in the end (delta: -185.8MB). Peak memory consumption was 89.7MB. Max. memory is 16.1GB. [2025-02-07 21:54:06,568 INFO L158 Benchmark]: Boogie Procedure Inliner took 322.57ms. Allocated memory is still 419.4MB. Free memory was 283.7MB in the beginning and 212.6MB in the end (delta: 71.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-02-07 21:54:06,569 INFO L158 Benchmark]: Boogie Preprocessor took 515.06ms. Allocated memory is still 419.4MB. Free memory was 212.6MB in the beginning and 308.3MB in the end (delta: -95.7MB). Peak memory consumption was 146.5MB. Max. memory is 16.1GB. [2025-02-07 21:54:06,569 INFO L158 Benchmark]: IcfgBuilder took 4641.27ms. Allocated memory was 419.4MB in the beginning and 1.0GB in the end (delta: 595.6MB). Free memory was 308.3MB in the beginning and 829.6MB in the end (delta: -521.3MB). Peak memory consumption was 455.1MB. Max. memory is 16.1GB. [2025-02-07 21:54:06,570 INFO L158 Benchmark]: TraceAbstraction took 602.56ms. Allocated memory is still 1.0GB. Free memory was 829.6MB in the beginning and 787.7MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-07 21:54:06,571 INFO L158 Benchmark]: Witness Printer took 323.68ms. Allocated memory is still 1.0GB. Free memory was 787.7MB in the beginning and 729.0MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-02-07 21:54:06,573 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1322.20ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 97.8MB in the beginning and 283.7MB in the end (delta: -185.8MB). Peak memory consumption was 89.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 322.57ms. Allocated memory is still 419.4MB. Free memory was 283.7MB in the beginning and 212.6MB in the end (delta: 71.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 515.06ms. Allocated memory is still 419.4MB. Free memory was 212.6MB in the beginning and 308.3MB in the end (delta: -95.7MB). Peak memory consumption was 146.5MB. Max. memory is 16.1GB. * IcfgBuilder took 4641.27ms. Allocated memory was 419.4MB in the beginning and 1.0GB in the end (delta: 595.6MB). Free memory was 308.3MB in the beginning and 829.6MB in the end (delta: -521.3MB). Peak memory consumption was 455.1MB. Max. memory is 16.1GB. * TraceAbstraction took 602.56ms. Allocated memory is still 1.0GB. Free memory was 829.6MB in the beginning and 787.7MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 323.68ms. Allocated memory is still 1.0GB. Free memory was 787.7MB in the beginning and 729.0MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. 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 - PositiveResult [Line: 295]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 382]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 777 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, 1474 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 1474 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=777occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 86 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 5119]: Location Invariant Derived location invariant: (15 <= a24) RESULT: Ultimate proved your program to be correct! [2025-02-07 21:54:06,591 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 Result: TRUE