./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_lcr.3.1.ufo.BOUNDED-6.pals.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/seq-mthreaded/pals_lcr.3.1.ufo.BOUNDED-6.pals.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 d852cbbb6aa933b5bfc297e03d0d3456bac2eafa50ad19971e71951b44cb15d3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 21:14:50,013 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 21:14:50,071 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 21:14:50,076 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 21:14:50,076 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 21:14:50,096 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 21:14:50,098 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 21:14:50,099 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 21:14:50,099 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 21:14:50,099 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 21:14:50,100 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 21:14:50,100 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 21:14:50,100 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 21:14:50,100 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 21:14:50,100 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 21:14:50,101 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 21:14:50,101 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 21:14:50,101 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 21:14:50,101 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 21:14:50,101 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 21:14:50,101 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 21:14:50,101 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 21:14:50,101 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 21:14:50,101 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 21:14:50,102 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 21:14:50,102 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 21:14:50,102 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 21:14:50,102 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 21:14:50,102 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 21:14:50,102 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 21:14:50,102 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 21:14:50,102 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 21:14:50,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:14:50,103 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 21:14:50,103 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 21:14:50,103 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 21:14:50,103 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 21:14:50,103 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 21:14:50,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 21:14:50,103 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 21:14:50,103 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 21:14:50,103 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 21:14:50,103 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 21:14:50,103 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 -> d852cbbb6aa933b5bfc297e03d0d3456bac2eafa50ad19971e71951b44cb15d3 [2025-02-07 21:14:50,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 21:14:50,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 21:14:50,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 21:14:50,279 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 21:14:50,279 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 21:14:50,279 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr.3.1.ufo.BOUNDED-6.pals.c [2025-02-07 21:14:51,471 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6a4598446/7e48825a0ace4f408743ded2f9833cd7/FLAG784a3e235 [2025-02-07 21:14:51,822 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 21:14:51,824 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.3.1.ufo.BOUNDED-6.pals.c [2025-02-07 21:14:51,831 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6a4598446/7e48825a0ace4f408743ded2f9833cd7/FLAG784a3e235 [2025-02-07 21:14:52,066 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6a4598446/7e48825a0ace4f408743ded2f9833cd7 [2025-02-07 21:14:52,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 21:14:52,069 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 21:14:52,070 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 21:14:52,070 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 21:14:52,073 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 21:14:52,074 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:14:52" (1/1) ... [2025-02-07 21:14:52,076 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a436c7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:14:52, skipping insertion in model container [2025-02-07 21:14:52,076 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:14:52" (1/1) ... [2025-02-07 21:14:52,091 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 21:14:52,231 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/seq-mthreaded/pals_lcr.3.1.ufo.BOUNDED-6.pals.c[5984,5997] [2025-02-07 21:14:52,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:14:52,244 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 21:14:52,271 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/seq-mthreaded/pals_lcr.3.1.ufo.BOUNDED-6.pals.c[5984,5997] [2025-02-07 21:14:52,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:14:52,281 INFO L204 MainTranslator]: Completed translation [2025-02-07 21:14:52,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:14:52 WrapperNode [2025-02-07 21:14:52,282 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 21:14:52,284 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 21:14:52,284 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 21:14:52,284 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 21:14:52,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:14:52" (1/1) ... [2025-02-07 21:14:52,293 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:14:52" (1/1) ... [2025-02-07 21:14:52,315 INFO L138 Inliner]: procedures = 21, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 220 [2025-02-07 21:14:52,315 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 21:14:52,316 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 21:14:52,316 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 21:14:52,316 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 21:14:52,322 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:14:52" (1/1) ... [2025-02-07 21:14:52,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:14:52" (1/1) ... [2025-02-07 21:14:52,323 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:14:52" (1/1) ... [2025-02-07 21:14:52,331 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 21:14:52,331 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:14:52" (1/1) ... [2025-02-07 21:14:52,332 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:14:52" (1/1) ... [2025-02-07 21:14:52,337 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:14:52" (1/1) ... [2025-02-07 21:14:52,337 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:14:52" (1/1) ... [2025-02-07 21:14:52,338 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:14:52" (1/1) ... [2025-02-07 21:14:52,338 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:14:52" (1/1) ... [2025-02-07 21:14:52,340 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 21:14:52,340 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 21:14:52,340 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 21:14:52,340 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 21:14:52,341 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:14:52" (1/1) ... [2025-02-07 21:14:52,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:14:52,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:14:52,362 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 21:14:52,366 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 21:14:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 21:14:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 21:14:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 21:14:52,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 21:14:52,429 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 21:14:52,430 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 21:14:52,616 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L93: ~mode2~0 := 0; [2025-02-07 21:14:52,617 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L89: assume node2_~m2~0#1 == ~id2~0;~st2~0 := 1; [2025-02-07 21:14:52,617 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L89: assume !(node2_~m2~0#1 == ~id2~0); [2025-02-07 21:14:52,617 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L118: ~mode3~0 := 0; [2025-02-07 21:14:52,617 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: assume 1 == ~st1~0 + ~st2~0 + ~st3~0;check_~tmp~1#1 := 1; [2025-02-07 21:14:52,617 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: assume !(1 == ~st1~0 + ~st2~0 + ~st3~0);check_~tmp~1#1 := 0; [2025-02-07 21:14:52,617 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L85: assume node2_~m2~0#1 != ~nomsg~0; [2025-02-07 21:14:52,617 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L85: assume !(node2_~m2~0#1 != ~nomsg~0); [2025-02-07 21:14:52,617 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114: assume node3_~m3~0#1 == ~id3~0;~st3~0 := 1; [2025-02-07 21:14:52,617 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114: assume !(node3_~m3~0#1 == ~id3~0); [2025-02-07 21:14:52,617 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L110: assume node3_~m3~0#1 != ~nomsg~0; [2025-02-07 21:14:52,617 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L110: assume !(node3_~m3~0#1 != ~nomsg~0); [2025-02-07 21:14:52,617 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L205: assume ~r1~0 >= 3; [2025-02-07 21:14:52,618 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L205: assume !(~r1~0 >= 3); [2025-02-07 21:14:52,618 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: main_#t~ret18#1 := check_#res#1;havoc check_~tmp~1#1;assume { :end_inline_check } true;assume -2147483648 <= main_#t~ret18#1 && main_#t~ret18#1 <= 2147483647;main_~c1~0#1 := main_#t~ret18#1;havoc main_#t~ret18#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; [2025-02-07 21:14:52,618 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L259: 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 21:14:52,618 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L280: assume 0 == assert_~arg#1 % 256; [2025-02-07 21:14:52,618 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L280: assume !(0 == assert_~arg#1 % 256); [2025-02-07 21:14:52,618 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L86: assume node2_~m2~0#1 > ~id2~0;~send2~0 := node2_~m2~0#1; [2025-02-07 21:14:52,618 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L86: assume !(node2_~m2~0#1 > ~id2~0); [2025-02-07 21:14:52,618 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L210: assume ~r1~0 < 3;check_~tmp~1#1 := 1; [2025-02-07 21:14:52,618 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L210: assume !(~r1~0 < 3); [2025-02-07 21:14:52,618 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L82: assume 0 != ~mode2~0 % 256;node2_~m2~0#1 := ~p1_old~0;~p1_old~0 := ~nomsg~0; [2025-02-07 21:14:52,619 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L82: 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 21:14:52,619 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L111: assume node3_~m3~0#1 > ~id3~0;~send3~0 := node3_~m3~0#1; [2025-02-07 21:14:52,619 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L111: assume !(node3_~m3~0#1 > ~id3~0); [2025-02-07 21:14:52,619 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L268: havoc assert_~arg#1;havoc assert_#in~arg#1;assume { :end_inline_assert } true;main_#t~post19#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post19#1;havoc main_#t~post19#1; [2025-02-07 21:14:52,619 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L107: assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0; [2025-02-07 21:14:52,619 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L107: 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 21:14:52,619 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L260: 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 21:14:52,619 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L224-1: check_#res#1 := check_~tmp~1#1; [2025-02-07 21:14:52,619 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L282: assume false;assume false; [2025-02-07 21:14:52,620 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L282: assume !false; [2025-02-07 21:14:52,620 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L208: assume 0 == ~st1~0 + ~st2~0 + ~st3~0; [2025-02-07 21:14:52,620 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L208: assume !(0 == ~st1~0 + ~st2~0 + ~st3~0);check_~tmp~1#1 := 0; [2025-02-07 21:14:52,620 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L204: assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; [2025-02-07 21:14:52,620 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L204: assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1#1 := 0; [2025-02-07 21:14:52,620 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L258: 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 21:14:52,627 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2025-02-07 21:14:52,627 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 21:14:52,634 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 21:14:52,636 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 21:14:52,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:14:52 BoogieIcfgContainer [2025-02-07 21:14:52,637 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 21:14:52,638 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 21:14:52,638 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 21:14:52,642 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 21:14:52,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 09:14:52" (1/3) ... [2025-02-07 21:14:52,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e518080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:14:52, skipping insertion in model container [2025-02-07 21:14:52,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:14:52" (2/3) ... [2025-02-07 21:14:52,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e518080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:14:52, skipping insertion in model container [2025-02-07 21:14:52,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:14:52" (3/3) ... [2025-02-07 21:14:52,643 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.1.ufo.BOUNDED-6.pals.c [2025-02-07 21:14:52,652 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 21:14:52,654 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.3.1.ufo.BOUNDED-6.pals.c that has 1 procedures, 29 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-07 21:14:52,688 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 21:14:52,698 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;@6f37d676, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 21:14:52,698 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 21:14:52,703 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 27 states have (on average 1.8148148148148149) internal successors, (49), 28 states have internal predecessors, (49), 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 21:14:52,706 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-07 21:14:52,708 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-07 21:14:52,712 INFO L422 BasicCegarLoop]: Path program histogram: [] [2025-02-07 21:14:52,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 27 states have (on average 1.8148148148148149) internal successors, (49), 28 states have internal predecessors, (49), 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 21:14:52,724 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 21:14:52,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 09:14:52 BoogieIcfgContainer [2025-02-07 21:14:52,730 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 21:14:52,731 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 21:14:52,731 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 21:14:52,731 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 21:14:52,731 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:14:52" (3/4) ... [2025-02-07 21:14:52,733 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-07 21:14:52,738 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-02-07 21:14:52,739 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-07 21:14:52,739 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-07 21:14:52,739 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-07 21:14:52,802 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-07 21:14:52,802 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-07 21:14:52,802 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 21:14:52,803 INFO L158 Benchmark]: Toolchain (without parser) took 733.96ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 53.6MB in the end (delta: 50.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-02-07 21:14:52,803 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 125.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:14:52,803 INFO L158 Benchmark]: CACSL2BoogieTranslator took 211.99ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 91.3MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 21:14:52,803 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.76ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 89.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:14:52,804 INFO L158 Benchmark]: Boogie Preprocessor took 23.83ms. Allocated memory is still 142.6MB. Free memory was 89.3MB in the beginning and 87.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:14:52,804 INFO L158 Benchmark]: IcfgBuilder took 296.52ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 68.1MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 21:14:52,804 INFO L158 Benchmark]: TraceAbstraction took 91.94ms. Allocated memory is still 142.6MB. Free memory was 67.1MB in the beginning and 60.2MB in the end (delta: 6.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:14:52,804 INFO L158 Benchmark]: Witness Printer took 71.39ms. Allocated memory is still 142.6MB. Free memory was 60.2MB in the beginning and 53.6MB in the end (delta: 6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 21:14:52,805 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 125.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 211.99ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 91.3MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.76ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 89.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.83ms. Allocated memory is still 142.6MB. Free memory was 89.3MB in the beginning and 87.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 296.52ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 68.1MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 91.94ms. Allocated memory is still 142.6MB. Free memory was 67.1MB in the beginning and 60.2MB in the end (delta: 6.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 71.39ms. Allocated memory is still 142.6MB. Free memory was 60.2MB in the beginning and 53.6MB in the end (delta: 6.7MB). Peak memory consumption was 8.4MB. 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: 282]: 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, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-07 21:14:52,816 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