./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem19_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/eca-rers2012/Problem19_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 53a9af5a268dc84f7a36a641b11f05ea6b6b73a310013118c273a3cd9faef91e --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 18:05:09,048 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 18:05:09,105 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 18:05:09,113 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 18:05:09,113 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 18:05:09,135 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 18:05:09,136 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 18:05:09,137 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 18:05:09,137 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 18:05:09,137 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 18:05:09,137 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 18:05:09,138 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 18:05:09,138 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 18:05:09,138 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 18:05:09,138 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 18:05:09,139 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 18:05:09,139 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 18:05:09,139 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 18:05:09,139 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 18:05:09,139 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 18:05:09,139 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 18:05:09,139 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 18:05:09,139 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 18:05:09,140 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 18:05:09,140 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 18:05:09,140 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 18:05:09,140 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 18:05:09,140 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 18:05:09,140 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 18:05:09,140 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 18:05:09,140 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 18:05:09,140 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 18:05:09,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:05:09,140 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 18:05:09,141 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 18:05:09,141 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 18:05:09,141 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 18:05:09,141 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 18:05:09,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 18:05:09,141 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 18:05:09,141 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 18:05:09,141 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 18:05:09,141 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 18:05:09,142 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 -> 53a9af5a268dc84f7a36a641b11f05ea6b6b73a310013118c273a3cd9faef91e [2025-02-07 18:05:09,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 18:05:09,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 18:05:09,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 18:05:09,401 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 18:05:09,401 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 18:05:09,402 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem19_label06.c [2025-02-07 18:05:11,248 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/adf1b6557/72f4c01deba04afabc239c395dd1f1e0/FLAGcf426132e [2025-02-07 18:05:11,934 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 18:05:11,935 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem19_label06.c [2025-02-07 18:05:11,973 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/adf1b6557/72f4c01deba04afabc239c395dd1f1e0/FLAGcf426132e [2025-02-07 18:05:12,353 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/adf1b6557/72f4c01deba04afabc239c395dd1f1e0 [2025-02-07 18:05:12,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 18:05:12,356 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 18:05:12,359 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 18:05:12,359 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 18:05:12,363 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 18:05:12,364 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:05:12" (1/1) ... [2025-02-07 18:05:12,364 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5caa8ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:05:12, skipping insertion in model container [2025-02-07 18:05:12,364 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:05:12" (1/1) ... [2025-02-07 18:05:12,483 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 18:05:12,767 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/eca-rers2012/Problem19_label06.c[7097,7110] [2025-02-07 18:05:13,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:05:13,545 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 18:05:13,567 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/eca-rers2012/Problem19_label06.c[7097,7110] [2025-02-07 18:05:14,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:05:14,094 INFO L204 MainTranslator]: Completed translation [2025-02-07 18:05:14,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:05:14 WrapperNode [2025-02-07 18:05:14,096 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 18:05:14,097 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 18:05:14,098 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 18:05:14,098 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 18:05:14,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:05:14" (1/1) ... [2025-02-07 18:05:14,168 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:05:14" (1/1) ... [2025-02-07 18:05:14,648 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 9428 [2025-02-07 18:05:14,649 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 18:05:14,650 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 18:05:14,650 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 18:05:14,650 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 18:05:14,657 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:05:14" (1/1) ... [2025-02-07 18:05:14,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:05:14" (1/1) ... [2025-02-07 18:05:14,871 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:05:14" (1/1) ... [2025-02-07 18:05:15,180 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 18:05:15,180 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:05:14" (1/1) ... [2025-02-07 18:05:15,180 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:05:14" (1/1) ... [2025-02-07 18:05:15,494 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:05:14" (1/1) ... [2025-02-07 18:05:15,619 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:05:14" (1/1) ... [2025-02-07 18:05:15,641 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:05:14" (1/1) ... [2025-02-07 18:05:15,660 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:05:14" (1/1) ... [2025-02-07 18:05:15,734 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 18:05:15,735 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 18:05:15,735 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 18:05:15,735 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 18:05:15,736 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:05:14" (1/1) ... [2025-02-07 18:05:15,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:05:15,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 18:05:15,760 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 18:05:15,766 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 18:05:15,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 18:05:15,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 18:05:15,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 18:05:15,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 18:05:15,847 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 18:05:15,848 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 18:05:22,497 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6717: havoc calculate_output4_#t~ret14#1;calculate_output3_#t~ret13#1 := calculate_output4_#res#1;havoc calculate_output4_#t~ret14#1, calculate_output4_~input#1;havoc calculate_output4_#in~input#1;assume { :end_inline_calculate_output4 } true;assume -2147483648 <= calculate_output3_#t~ret13#1 && calculate_output3_#t~ret13#1 <= 2147483647;calculate_output3_#res#1 := calculate_output3_#t~ret13#1;havoc calculate_output3_#t~ret13#1; [2025-02-07 18:05:22,498 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3435: havoc calculate_output2_#t~ret12#1;calculate_output_#t~ret11#1 := calculate_output2_#res#1;havoc calculate_output2_#t~ret12#1, calculate_output2_~input#1;havoc calculate_output2_#in~input#1;assume { :end_inline_calculate_output2 } true;assume -2147483648 <= calculate_output_#t~ret11#1 && calculate_output_#t~ret11#1 <= 2147483647;calculate_output_#res#1 := calculate_output_#t~ret11#1;havoc calculate_output_#t~ret11#1; [2025-02-07 18:05:22,498 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1859: havoc calculate_output_#t~ret11#1;main_#t~ret17#1 := calculate_output_#res#1;havoc calculate_output_#t~ret11#1, calculate_output_~input#1;havoc calculate_output_#in~input#1;assume { :end_inline_calculate_output } true;assume -2147483648 <= main_#t~ret17#1 && main_#t~ret17#1 <= 2147483647;main_~output~0#1 := main_#t~ret17#1;havoc main_~input~0#1;havoc main_#t~ret17#1; [2025-02-07 18:05:22,499 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L8350: havoc calculate_output5_#t~ret15#1;calculate_output4_#t~ret14#1 := calculate_output5_#res#1;havoc calculate_output5_#t~ret15#1, calculate_output5_~input#1;havoc calculate_output5_#in~input#1;assume { :end_inline_calculate_output5 } true;assume -2147483648 <= calculate_output4_#t~ret14#1 && calculate_output4_#t~ret14#1 <= 2147483647;calculate_output4_#res#1 := calculate_output4_#t~ret14#1;havoc calculate_output4_#t~ret14#1; [2025-02-07 18:05:22,499 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L8350-2: calculate_output5_#t~ret15#1 := calculate_output6_#res#1;havoc calculate_output6_~input#1;havoc calculate_output6_#in~input#1;assume { :end_inline_calculate_output6 } true;assume -2147483648 <= calculate_output5_#t~ret15#1 && calculate_output5_#t~ret15#1 <= 2147483647;calculate_output5_#res#1 := calculate_output5_#t~ret15#1;havoc calculate_output5_#t~ret15#1; [2025-02-07 18:05:22,499 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5079: havoc calculate_output3_#t~ret13#1;calculate_output2_#t~ret12#1 := calculate_output3_#res#1;havoc calculate_output3_#t~ret13#1, calculate_output3_~input#1;havoc calculate_output3_#in~input#1;assume { :end_inline_calculate_output3 } true;assume -2147483648 <= calculate_output2_#t~ret12#1 && calculate_output2_#t~ret12#1 <= 2147483647;calculate_output2_#res#1 := calculate_output2_#t~ret12#1;havoc calculate_output2_#t~ret12#1; [2025-02-07 18:05:22,993 INFO L? ?]: Removed 2609 outVars from TransFormulas that were not future-live. [2025-02-07 18:05:22,993 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 18:05:23,038 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 18:05:23,038 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 18:05:23,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:05:23 BoogieIcfgContainer [2025-02-07 18:05:23,039 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 18:05:23,041 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 18:05:23,041 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 18:05:23,045 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 18:05:23,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 06:05:12" (1/3) ... [2025-02-07 18:05:23,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2674cfdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:05:23, skipping insertion in model container [2025-02-07 18:05:23,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:05:14" (2/3) ... [2025-02-07 18:05:23,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2674cfdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:05:23, skipping insertion in model container [2025-02-07 18:05:23,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:05:23" (3/3) ... [2025-02-07 18:05:23,049 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem19_label06.c [2025-02-07 18:05:23,060 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 18:05:23,062 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem19_label06.c that has 1 procedures, 1687 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-07 18:05:23,149 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 18:05:23,159 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;@19f7cad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 18:05:23,159 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 18:05:23,171 INFO L276 IsEmpty]: Start isEmpty. Operand has 1687 states, 1678 states have (on average 1.9046483909415972) internal successors, (3196), 1686 states have internal predecessors, (3196), 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 18:05:23,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-02-07 18:05:23,181 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 18:05:23,182 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, 1, 1, 1, 1, 1, 1, 1, 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 18:05:23,182 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 18:05:23,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 18:05:23,190 INFO L85 PathProgramCache]: Analyzing trace with hash 434147448, now seen corresponding path program 1 times [2025-02-07 18:05:23,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 18:05:23,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157959558] [2025-02-07 18:05:23,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 18:05:23,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 18:05:23,333 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-02-07 18:05:23,360 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-02-07 18:05:23,362 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:05:23,362 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 18:05:23,474 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 18:05:23,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 18:05:23,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157959558] [2025-02-07 18:05:23,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157959558] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 18:05:23,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 18:05:23,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 18:05:23,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573354759] [2025-02-07 18:05:23,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 18:05:23,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 18:05:23,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 18:05:23,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 18:05:23,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 18:05:23,530 INFO L87 Difference]: Start difference. First operand has 1687 states, 1678 states have (on average 1.9046483909415972) internal successors, (3196), 1686 states have internal predecessors, (3196), 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 26.5) internal successors, (53), 2 states have internal predecessors, (53), 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 18:05:23,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 18:05:23,698 INFO L93 Difference]: Finished difference Result 3367 states and 6384 transitions. [2025-02-07 18:05:23,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 18:05:23,703 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 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 53 [2025-02-07 18:05:23,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 18:05:23,712 INFO L225 Difference]: With dead ends: 3367 [2025-02-07 18:05:23,712 INFO L226 Difference]: Without dead ends: 54 [2025-02-07 18:05:23,725 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 18:05:23,728 INFO L435 NwaCegarLoop]: 3133 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, 3133 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 18:05:23,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3133 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-07 18:05:23,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2025-02-07 18:05:23,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2025-02-07 18:05:23,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.0) internal successors, (53), 53 states have internal predecessors, (53), 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 18:05:23,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 53 transitions. [2025-02-07 18:05:23,779 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 53 transitions. Word has length 53 [2025-02-07 18:05:23,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 18:05:23,779 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 53 transitions. [2025-02-07 18:05:23,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 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 18:05:23,779 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 53 transitions. [2025-02-07 18:05:23,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-02-07 18:05:23,783 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 18:05:23,784 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, 1, 1, 1, 1, 1, 1, 1, 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 18:05:23,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 18:05:23,784 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 18:05:23,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 18:05:23,784 INFO L85 PathProgramCache]: Analyzing trace with hash 2020269042, now seen corresponding path program 1 times [2025-02-07 18:05:23,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 18:05:23,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367293336] [2025-02-07 18:05:23,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 18:05:23,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 18:05:23,808 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-02-07 18:05:23,848 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-02-07 18:05:23,849 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:05:23,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 18:05:24,049 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 18:05:24,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 18:05:24,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367293336] [2025-02-07 18:05:24,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367293336] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 18:05:24,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 18:05:24,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 18:05:24,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169971668] [2025-02-07 18:05:24,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 18:05:24,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-07 18:05:24,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 18:05:24,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-07 18:05:24,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 18:05:24,055 INFO L87 Difference]: Start difference. First operand 54 states and 53 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 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 18:05:24,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 18:05:24,203 INFO L93 Difference]: Finished difference Result 54 states and 53 transitions. [2025-02-07 18:05:24,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-07 18:05:24,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 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 53 [2025-02-07 18:05:24,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 18:05:24,206 INFO L225 Difference]: With dead ends: 54 [2025-02-07 18:05:24,206 INFO L226 Difference]: Without dead ends: 0 [2025-02-07 18:05:24,207 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 18:05:24,211 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-07 18:05:24,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-07 18:05:24,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-07 18:05:24,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-07 18:05:24,212 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 18:05:24,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-07 18:05:24,212 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2025-02-07 18:05:24,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 18:05:24,212 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-07 18:05:24,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 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 18:05:24,212 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-07 18:05:24,212 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-07 18:05:24,215 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-07 18:05:24,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-07 18:05:24,221 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-07 18:05:24,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-07 18:05:24,243 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 18:05:24,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 06:05:24 BoogieIcfgContainer [2025-02-07 18:05:24,270 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 18:05:24,271 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 18:05:24,271 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 18:05:24,271 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 18:05:24,273 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:05:23" (3/4) ... [2025-02-07 18:05:24,275 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-07 18:05:24,402 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2025-02-07 18:05:24,420 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-07 18:05:24,435 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-07 18:05:24,447 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-07 18:05:24,795 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-07 18:05:24,795 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-07 18:05:24,796 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 18:05:24,796 INFO L158 Benchmark]: Toolchain (without parser) took 12439.83ms. Allocated memory was 167.8MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 104.0MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 382.4MB. Max. memory is 16.1GB. [2025-02-07 18:05:24,797 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 226.5MB. Free memory is still 148.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:05:24,797 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1737.44ms. Allocated memory was 167.8MB in the beginning and 335.5MB in the end (delta: 167.8MB). Free memory was 104.0MB in the beginning and 198.1MB in the end (delta: -94.1MB). Peak memory consumption was 119.8MB. Max. memory is 16.1GB. [2025-02-07 18:05:24,797 INFO L158 Benchmark]: Boogie Procedure Inliner took 552.25ms. Allocated memory is still 335.5MB. Free memory was 198.1MB in the beginning and 114.1MB in the end (delta: 84.0MB). Peak memory consumption was 130.0MB. Max. memory is 16.1GB. [2025-02-07 18:05:24,797 INFO L158 Benchmark]: Boogie Preprocessor took 1084.64ms. Allocated memory was 335.5MB in the beginning and 704.6MB in the end (delta: 369.1MB). Free memory was 114.1MB in the beginning and 469.1MB in the end (delta: -355.0MB). Peak memory consumption was 155.2MB. Max. memory is 16.1GB. [2025-02-07 18:05:24,797 INFO L158 Benchmark]: IcfgBuilder took 7304.34ms. Allocated memory was 704.6MB in the beginning and 1.7GB in the end (delta: 998.2MB). Free memory was 469.1MB in the beginning and 1.4GB in the end (delta: -967.8MB). Peak memory consumption was 382.7MB. Max. memory is 16.1GB. [2025-02-07 18:05:24,798 INFO L158 Benchmark]: TraceAbstraction took 1228.98ms. Allocated memory is still 1.7GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 71.3MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-02-07 18:05:24,798 INFO L158 Benchmark]: Witness Printer took 524.85ms. Allocated memory is still 1.7GB. Free memory was 1.4GB in the beginning and 1.3GB in the end (delta: 109.1MB). Peak memory consumption was 109.1MB. Max. memory is 16.1GB. [2025-02-07 18:05:24,799 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 226.5MB. Free memory is still 148.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1737.44ms. Allocated memory was 167.8MB in the beginning and 335.5MB in the end (delta: 167.8MB). Free memory was 104.0MB in the beginning and 198.1MB in the end (delta: -94.1MB). Peak memory consumption was 119.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 552.25ms. Allocated memory is still 335.5MB. Free memory was 198.1MB in the beginning and 114.1MB in the end (delta: 84.0MB). Peak memory consumption was 130.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1084.64ms. Allocated memory was 335.5MB in the beginning and 704.6MB in the end (delta: 369.1MB). Free memory was 114.1MB in the beginning and 469.1MB in the end (delta: -355.0MB). Peak memory consumption was 155.2MB. Max. memory is 16.1GB. * IcfgBuilder took 7304.34ms. Allocated memory was 704.6MB in the beginning and 1.7GB in the end (delta: 998.2MB). Free memory was 469.1MB in the beginning and 1.4GB in the end (delta: -967.8MB). Peak memory consumption was 382.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1228.98ms. Allocated memory is still 1.7GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 71.3MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Witness Printer took 524.85ms. Allocated memory is still 1.7GB. Free memory was 1.4GB in the beginning and 1.3GB in the end (delta: 109.1MB). Peak memory consumption was 109.1MB. 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: 188]: 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, 1687 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 3136 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 3136 mSDtfsCounter, 48 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=1687occurred 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, 0.3s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 308 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 1 specifications checked. All of them hold - InvariantResult [Line: 9794]: Location Invariant Derived location invariant: (((long long) a21 + 189) <= 0) RESULT: Ultimate proved your program to be correct! [2025-02-07 18:05:24,816 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