./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label07.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.BOUNDED-6.pals+Problem12_label07.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 1a770e072308583e36326282bebae23c1c98c748d42f3621fe7141c74e78b303 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 21:53:40,842 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 21:53:40,915 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 21:53:40,919 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 21:53:40,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 21:53:40,946 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 21:53:40,947 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 21:53:40,947 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 21:53:40,947 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 21:53:40,947 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 21:53:40,947 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 21:53:40,947 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 21:53:40,949 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 21:53:40,949 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 21:53:40,950 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 21:53:40,950 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 21:53:40,950 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 21:53:40,951 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 21:53:40,951 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 21:53:40,951 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 21:53:40,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 21:53:40,951 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 21:53:40,951 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 21:53:40,952 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 21:53:40,952 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 21:53:40,952 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 21:53:40,952 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 21:53:40,952 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 21:53:40,952 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 21:53:40,952 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 21:53:40,952 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 21:53:40,952 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 21:53:40,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:53:40,953 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 21:53:40,953 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 21:53:40,953 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 21:53:40,954 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 21:53:40,954 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 21:53:40,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 21:53:40,954 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 21:53:40,954 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 21:53:40,954 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 21:53:40,954 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 21:53:40,954 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 -> 1a770e072308583e36326282bebae23c1c98c748d42f3621fe7141c74e78b303 [2025-02-07 21:53:41,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 21:53:41,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 21:53:41,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 21:53:41,266 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 21:53:41,266 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 21:53:41,267 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label07.c [2025-02-07 21:53:42,550 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/175b16366/6dc6c974612f4dc58dabccd37f9d8553/FLAG4c5d26ef7 [2025-02-07 21:53:43,040 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 21:53:43,041 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label07.c [2025-02-07 21:53:43,078 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/175b16366/6dc6c974612f4dc58dabccd37f9d8553/FLAG4c5d26ef7 [2025-02-07 21:53:43,128 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/175b16366/6dc6c974612f4dc58dabccd37f9d8553 [2025-02-07 21:53:43,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 21:53:43,134 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 21:53:43,135 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 21:53:43,135 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 21:53:43,138 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 21:53:43,139 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:53:43" (1/1) ... [2025-02-07 21:53:43,139 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dfa1513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:53:43, skipping insertion in model container [2025-02-07 21:53:43,139 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:53:43" (1/1) ... [2025-02-07 21:53:43,228 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 21:53:43,511 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.BOUNDED-6.pals+Problem12_label07.c[6354,6367] [2025-02-07 21:53:43,542 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.BOUNDED-6.pals+Problem12_label07.c[7196,7209] [2025-02-07 21:53:44,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:53:44,076 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 21:53:44,110 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.BOUNDED-6.pals+Problem12_label07.c[6354,6367] [2025-02-07 21:53:44,112 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.BOUNDED-6.pals+Problem12_label07.c[7196,7209] [2025-02-07 21:53:44,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:53:44,468 INFO L204 MainTranslator]: Completed translation [2025-02-07 21:53:44,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:53:44 WrapperNode [2025-02-07 21:53:44,470 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 21:53:44,471 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 21:53:44,471 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 21:53:44,471 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 21:53:44,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:53:44" (1/1) ... [2025-02-07 21:53:44,534 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:53:44" (1/1) ... [2025-02-07 21:53:44,841 INFO L138 Inliner]: procedures = 33, calls = 19, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 4977 [2025-02-07 21:53:44,842 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 21:53:44,843 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 21:53:44,843 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 21:53:44,844 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 21:53:44,852 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:53:44" (1/1) ... [2025-02-07 21:53:44,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:53:44" (1/1) ... [2025-02-07 21:53:44,896 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:53:44" (1/1) ... [2025-02-07 21:53:45,044 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 21:53:45,044 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:53:44" (1/1) ... [2025-02-07 21:53:45,045 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:53:44" (1/1) ... [2025-02-07 21:53:45,179 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:53:44" (1/1) ... [2025-02-07 21:53:45,197 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:53:44" (1/1) ... [2025-02-07 21:53:45,223 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:53:44" (1/1) ... [2025-02-07 21:53:45,242 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:53:44" (1/1) ... [2025-02-07 21:53:45,289 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 21:53:45,291 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 21:53:45,291 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 21:53:45,291 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 21:53:45,292 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:53:44" (1/1) ... [2025-02-07 21:53:45,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:53:45,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:53:45,323 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 21:53:45,331 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 21:53:45,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 21:53:45,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 21:53:45,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 21:53:45,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 21:53:45,436 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 21:53:45,438 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 21:53:50,175 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5127: main_#t~ret36#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_#t~post20#1, main1_~c1~0#1, main1_~i2~0#1;assume { :end_inline_main1 } true;assume -2147483648 <= main_#t~ret36#1 && main_#t~ret36#1 <= 2147483647; [2025-02-07 21:53:50,176 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115: assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0; [2025-02-07 21:53:50,176 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115: 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 21:53:50,176 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L118: assume node3_~m3~0#1 != ~nomsg~0; [2025-02-07 21:53:50,176 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L118: assume !(node3_~m3~0#1 != ~nomsg~0); [2025-02-07 21:53:50,176 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L119: assume node3_~m3~0#1 > ~id3~0;~send3~0 := node3_~m3~0#1; [2025-02-07 21:53:50,176 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L119: assume !(node3_~m3~0#1 > ~id3~0); [2025-02-07 21:53:50,176 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L122: assume node3_~m3~0#1 == ~id3~0;~st3~0 := 1; [2025-02-07 21:53:50,176 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L122: assume !(node3_~m3~0#1 == ~id3~0); [2025-02-07 21:53:50,176 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L255: 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; [2025-02-07 21:53:50,176 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L256: assume 0 == main1_~i2~0#1;assume false; [2025-02-07 21:53:50,176 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L256: assume !(0 == main1_~i2~0#1); [2025-02-07 21:53:50,176 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L257: ~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 21:53:50,177 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L126: ~mode3~0 := 0; [2025-02-07 21:53:50,177 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4951: havoc calculate_output3_#t~ret32#1;calculate_output2_#t~ret31#1 := calculate_output3_#res#1;havoc calculate_output3_#t~ret32#1, calculate_output3_~input#1;havoc calculate_output3_#in~input#1;assume { :end_inline_calculate_output3 } true;assume -2147483648 <= calculate_output2_#t~ret31#1 && calculate_output2_#t~ret31#1 <= 2147483647;calculate_output2_#res#1 := calculate_output2_#t~ret31#1;havoc calculate_output2_#t~ret31#1; [2025-02-07 21:53:50,177 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4951-2: calculate_output3_#t~ret32#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~ret32#1 && calculate_output3_#t~ret32#1 <= 2147483647;calculate_output3_#res#1 := calculate_output3_#t~ret32#1;havoc calculate_output3_#t~ret32#1; [2025-02-07 21:53:50,177 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L64: assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p3_old~0;~p3_old~0 := ~nomsg~0; [2025-02-07 21:53:50,177 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L64: 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 21:53:50,177 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L264: assume main1_~i2~0#1 < 6;assume { :begin_inline_node1 } true;havoc node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; [2025-02-07 21:53:50,177 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L264: assume !(main1_~i2~0#1 < 6);main1_#res#1 := 0; [2025-02-07 21:53:50,177 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1982: havoc calculate_output_#t~ret30#1;main2_#t~ret34#1 := calculate_output_#res#1;havoc calculate_output_#t~ret30#1, calculate_output_~input#1;havoc calculate_output_#in~input#1;assume { :end_inline_calculate_output } true;assume -2147483648 <= main2_#t~ret34#1 && main2_#t~ret34#1 <= 2147483647;main2_~output~0#1 := main2_#t~ret34#1;havoc main2_~input~0#1;havoc main2_#t~ret34#1; [2025-02-07 21:53:50,177 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: 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 21:53:50,177 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68: assume node1_~m1~0#1 != ~nomsg~0; [2025-02-07 21:53:50,177 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68: assume !(node1_~m1~0#1 != ~nomsg~0); [2025-02-07 21:53:50,177 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: 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 21:53:50,177 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L69: assume node1_~m1~0#1 > ~id1~0;~send1~0 := node1_~m1~0#1; [2025-02-07 21:53:50,177 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L69: assume !(node1_~m1~0#1 > ~id1~0); [2025-02-07 21:53:50,178 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L268: 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 21:53:50,178 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L72: assume node1_~m1~0#1 == ~id1~0;~st1~0 := 1; [2025-02-07 21:53:50,178 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L72: assume !(node1_~m1~0#1 == ~id1~0); [2025-02-07 21:53:50,178 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L76: ~mode1~0 := 0; [2025-02-07 21:53:50,178 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L275: 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 21:53:50,178 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L276: havoc assert_~arg#1;havoc assert_#in~arg#1;assume { :end_inline_assert } true;main1_#t~post20#1 := main1_~i2~0#1;main1_~i2~0#1 := 1 + main1_#t~post20#1;havoc main1_#t~post20#1; [2025-02-07 21:53:50,178 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L212: assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; [2025-02-07 21:53:50,179 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L212: assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1#1 := 0; [2025-02-07 21:53:50,179 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: assume ~r1~0 >= 3; [2025-02-07 21:53:50,179 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: assume !(~r1~0 >= 3); [2025-02-07 21:53:50,179 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L216: assume 0 == ~st1~0 + ~st2~0 + ~st3~0; [2025-02-07 21:53:50,179 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L216: assume !(0 == ~st1~0 + ~st2~0 + ~st3~0);check_~tmp~1#1 := 0; [2025-02-07 21:53:50,179 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L218: assume ~r1~0 < 3;check_~tmp~1#1 := 1; [2025-02-07 21:53:50,179 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L218: assume !(~r1~0 < 3); [2025-02-07 21:53:50,180 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L221: assume 1 == ~st1~0 + ~st2~0 + ~st3~0;check_~tmp~1#1 := 1; [2025-02-07 21:53:50,180 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L221: assume !(1 == ~st1~0 + ~st2~0 + ~st3~0);check_~tmp~1#1 := 0; [2025-02-07 21:53:50,180 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L288: assume 0 == assert_~arg#1 % 256; [2025-02-07 21:53:50,180 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L288: assume !(0 == assert_~arg#1 % 256); [2025-02-07 21:53:50,180 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L90: assume 0 != ~mode2~0 % 256;node2_~m2~0#1 := ~p1_old~0;~p1_old~0 := ~nomsg~0; [2025-02-07 21:53:50,180 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L90: 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 21:53:50,180 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3461: havoc calculate_output2_#t~ret31#1;calculate_output_#t~ret30#1 := calculate_output2_#res#1;havoc calculate_output2_#t~ret31#1, calculate_output2_~input#1;havoc calculate_output2_#in~input#1;assume { :end_inline_calculate_output2 } true;assume -2147483648 <= calculate_output_#t~ret30#1 && calculate_output_#t~ret30#1 <= 2147483647;calculate_output_#res#1 := calculate_output_#t~ret30#1;havoc calculate_output_#t~ret30#1; [2025-02-07 21:53:50,181 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L290: assume false;assume false; [2025-02-07 21:53:50,181 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L290: assume !false; [2025-02-07 21:53:50,181 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L93: assume node2_~m2~0#1 != ~nomsg~0; [2025-02-07 21:53:50,181 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L93: assume !(node2_~m2~0#1 != ~nomsg~0); [2025-02-07 21:53:50,181 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L94: assume node2_~m2~0#1 > ~id2~0;~send2~0 := node2_~m2~0#1; [2025-02-07 21:53:50,181 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L94: assume !(node2_~m2~0#1 > ~id2~0); [2025-02-07 21:53:50,181 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L97: assume node2_~m2~0#1 == ~id2~0;~st2~0 := 1; [2025-02-07 21:53:50,181 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L97: assume !(node2_~m2~0#1 == ~id2~0); [2025-02-07 21:53:50,181 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L232-1: check_#res#1 := check_~tmp~1#1; [2025-02-07 21:53:50,182 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L101: ~mode2~0 := 0; [2025-02-07 21:53:50,395 INFO L? ?]: Removed 1386 outVars from TransFormulas that were not future-live. [2025-02-07 21:53:50,395 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 21:53:50,435 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 21:53:50,439 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 21:53:50,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:53:50 BoogieIcfgContainer [2025-02-07 21:53:50,439 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 21:53:50,441 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 21:53:50,441 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 21:53:50,447 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 21:53:50,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 09:53:43" (1/3) ... [2025-02-07 21:53:50,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d94a6a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:53:50, skipping insertion in model container [2025-02-07 21:53:50,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:53:44" (2/3) ... [2025-02-07 21:53:50,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d94a6a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:53:50, skipping insertion in model container [2025-02-07 21:53:50,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:53:50" (3/3) ... [2025-02-07 21:53:50,450 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label07.c [2025-02-07 21:53:50,466 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 21:53:50,469 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label07.c that has 1 procedures, 777 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-02-07 21:53:50,552 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 21:53:50,563 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;@6b370121, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 21:53:50,564 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-07 21:53:50,571 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 21:53:50,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-07 21:53:50,575 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:53:50,576 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-07 21:53:50,576 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:53:50,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:53:50,581 INFO L85 PathProgramCache]: Analyzing trace with hash 90655646, now seen corresponding path program 1 times [2025-02-07 21:53:50,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:53:50,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395458697] [2025-02-07 21:53:50,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:53:50,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:53:50,653 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-07 21:53:50,674 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-07 21:53:50,675 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:53:50,675 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:53:50,793 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 21:53:50,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 21:53:50,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395458697] [2025-02-07 21:53:50,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395458697] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 21:53:50,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 21:53:50,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 21:53:50,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245288999] [2025-02-07 21:53:50,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 21:53:50,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-07 21:53:50,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 21:53:50,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-07 21:53:50,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 21:53:50,822 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 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 21:53:53,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:53:53,167 INFO L93 Difference]: Finished difference Result 1529 states and 3022 transitions. [2025-02-07 21:53:53,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-07 21:53:53,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-02-07 21:53:53,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:53:53,173 INFO L225 Difference]: With dead ends: 1529 [2025-02-07 21:53:53,173 INFO L226 Difference]: Without dead ends: 0 [2025-02-07 21:53:53,178 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 21:53:53,180 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 840 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1517 mSolverCounterSat, 476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 1993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 1517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-02-07 21:53:53,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 39 Invalid, 1993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [476 Valid, 1517 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-02-07 21:53:53,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-07 21:53:53,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-07 21:53:53,196 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 21:53:53,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-07 21:53:53,199 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2025-02-07 21:53:53,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:53:53,199 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-07 21:53:53,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 21:53:53,200 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-07 21:53:53,200 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-07 21:53:53,202 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-02-07 21:53:53,203 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-02-07 21:53:53,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 21:53:53,206 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-07 21:53:53,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-07 21:53:53,222 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 21:53:53,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 09:53:53 BoogieIcfgContainer [2025-02-07 21:53:53,236 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 21:53:53,237 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 21:53:53,237 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 21:53:53,237 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 21:53:53,238 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:53:50" (3/4) ... [2025-02-07 21:53:53,241 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-07 21:53:53,289 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-02-07 21:53:53,296 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-07 21:53:53,303 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-07 21:53:53,310 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-07 21:53:53,636 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-07 21:53:53,636 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-07 21:53:53,637 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 21:53:53,637 INFO L158 Benchmark]: Toolchain (without parser) took 10503.92ms. Allocated memory was 201.3MB in the beginning and 394.3MB in the end (delta: 192.9MB). Free memory was 144.7MB in the beginning and 82.1MB in the end (delta: 62.5MB). Peak memory consumption was 250.4MB. Max. memory is 16.1GB. [2025-02-07 21:53:53,637 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 201.3MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:53:53,638 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1335.81ms. Allocated memory is still 201.3MB. Free memory was 144.3MB in the beginning and 80.9MB in the end (delta: 63.4MB). Peak memory consumption was 105.7MB. Max. memory is 16.1GB. [2025-02-07 21:53:53,638 INFO L158 Benchmark]: Boogie Procedure Inliner took 371.90ms. Allocated memory is still 201.3MB. Free memory was 79.9MB in the beginning and 92.3MB in the end (delta: -12.4MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2025-02-07 21:53:53,638 INFO L158 Benchmark]: Boogie Preprocessor took 446.18ms. Allocated memory is still 201.3MB. Free memory was 92.3MB in the beginning and 85.8MB in the end (delta: 6.4MB). Peak memory consumption was 89.1MB. Max. memory is 16.1GB. [2025-02-07 21:53:53,638 INFO L158 Benchmark]: IcfgBuilder took 5148.43ms. Allocated memory was 201.3MB in the beginning and 394.3MB in the end (delta: 192.9MB). Free memory was 85.8MB in the beginning and 127.0MB in the end (delta: -41.2MB). Peak memory consumption was 207.5MB. Max. memory is 16.1GB. [2025-02-07 21:53:53,640 INFO L158 Benchmark]: TraceAbstraction took 2794.59ms. Allocated memory is still 394.3MB. Free memory was 127.0MB in the beginning and 138.1MB in the end (delta: -11.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:53:53,641 INFO L158 Benchmark]: Witness Printer took 399.97ms. Allocated memory is still 394.3MB. Free memory was 138.1MB in the beginning and 82.1MB in the end (delta: 56.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-02-07 21:53:53,642 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 201.3MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1335.81ms. Allocated memory is still 201.3MB. Free memory was 144.3MB in the beginning and 80.9MB in the end (delta: 63.4MB). Peak memory consumption was 105.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 371.90ms. Allocated memory is still 201.3MB. Free memory was 79.9MB in the beginning and 92.3MB in the end (delta: -12.4MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 446.18ms. Allocated memory is still 201.3MB. Free memory was 92.3MB in the beginning and 85.8MB in the end (delta: 6.4MB). Peak memory consumption was 89.1MB. Max. memory is 16.1GB. * IcfgBuilder took 5148.43ms. Allocated memory was 201.3MB in the beginning and 394.3MB in the end (delta: 192.9MB). Free memory was 85.8MB in the beginning and 127.0MB in the end (delta: -41.2MB). Peak memory consumption was 207.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2794.59ms. Allocated memory is still 394.3MB. Free memory was 127.0MB in the beginning and 138.1MB in the end (delta: -11.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 399.97ms. Allocated memory is still 394.3MB. Free memory was 138.1MB in the beginning and 82.1MB in the end (delta: 56.0MB). Peak memory consumption was 50.3MB. 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: 290]: 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: 326]: 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: 2.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 840 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 840 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 476 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1517 IncrementalHoareTripleChecker+Invalid, 1993 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 476 mSolverCounterUnsat, 39 mSDtfsCounter, 1517 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=777occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 5114]: Location Invariant Derived location invariant: (a7 <= 13) RESULT: Ultimate proved your program to be correct! [2025-02-07 21:53:53,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE