./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-programs/Problem102_label06.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/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-programs/Problem102_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())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '9af135c72685086c60c5dc79516b2d3aff3f38ab7f7eb97bbe7d7334d5f78c48'] 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-programs/Problem102_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 9af135c72685086c60c5dc79516b2d3aff3f38ab7f7eb97bbe7d7334d5f78c48 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 20:25:44,862 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 20:25:44,933 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 20:25:44,938 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 20:25:44,939 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 20:25:44,965 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 20:25:44,967 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 20:25:44,967 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 20:25:44,968 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 20:25:44,968 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 20:25:44,969 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 20:25:44,969 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 20:25:44,970 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 20:25:44,970 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 20:25:44,970 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 20:25:44,970 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 20:25:44,970 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 20:25:44,971 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 20:25:44,971 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 20:25:44,971 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 20:25:44,971 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 20:25:44,971 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 20:25:44,971 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 20:25:44,971 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 20:25:44,971 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 20:25:44,971 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 20:25:44,972 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 20:25:44,972 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 20:25:44,972 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 20:25:44,972 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 20:25:44,972 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 20:25:44,973 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 20:25:44,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 20:25:44,973 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 20:25:44,973 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 20:25:44,973 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 20:25:44,974 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 20:25:44,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 20:25:44,974 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 20:25:44,974 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 20:25:44,974 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 20:25:44,974 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 20:25:44,974 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 -> 9af135c72685086c60c5dc79516b2d3aff3f38ab7f7eb97bbe7d7334d5f78c48 [2024-11-06 20:25:45,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 20:25:45,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 20:25:45,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 20:25:45,277 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 20:25:45,278 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 20:25:45,279 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-programs/Problem102_label06.c [2024-11-06 20:25:46,572 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 20:25:48,528 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 20:25:48,528 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-programs/Problem102_label06.c [2024-11-06 20:25:48,742 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/12968fb3a/5d751f7cf8674c238c36fd2514f71abd/FLAG21ab4f898 [2024-11-06 20:25:49,134 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/12968fb3a/5d751f7cf8674c238c36fd2514f71abd [2024-11-06 20:25:49,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 20:25:49,137 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 20:25:49,138 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 20:25:49,139 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 20:25:49,142 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 20:25:49,143 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:25:49" (1/1) ... [2024-11-06 20:25:49,143 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56c87039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:25:49, skipping insertion in model container [2024-11-06 20:25:49,144 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:25:49" (1/1) ... [2024-11-06 20:25:49,975 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 20:26:04,766 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-programs/Problem102_label06.c[5709692,5709705] [2024-11-06 20:26:04,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 20:26:04,870 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 20:26:12,214 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-programs/Problem102_label06.c[5709692,5709705] [2024-11-06 20:26:12,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 20:26:16,411 INFO L204 MainTranslator]: Completed translation [2024-11-06 20:26:16,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:16 WrapperNode [2024-11-06 20:26:16,413 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 20:26:16,414 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 20:26:16,415 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 20:26:16,415 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 20:26:16,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:16" (1/1) ... [2024-11-06 20:26:17,309 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:16" (1/1) ... [2024-11-06 20:26:20,630 INFO L138 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184377 [2024-11-06 20:26:20,630 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 20:26:20,631 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 20:26:20,631 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 20:26:20,631 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 20:26:20,637 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:16" (1/1) ... [2024-11-06 20:26:20,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:16" (1/1) ... [2024-11-06 20:26:21,230 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:16" (1/1) ... [2024-11-06 20:26:22,120 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]. [2024-11-06 20:26:22,121 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:16" (1/1) ... [2024-11-06 20:26:22,121 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:16" (1/1) ... [2024-11-06 20:26:23,666 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:16" (1/1) ... [2024-11-06 20:26:23,957 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:16" (1/1) ... [2024-11-06 20:26:24,178 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:16" (1/1) ... [2024-11-06 20:26:24,349 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:16" (1/1) ... [2024-11-06 20:26:24,952 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 20:26:24,955 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 20:26:24,955 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 20:26:24,955 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 20:26:24,956 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:16" (1/1) ... [2024-11-06 20:26:24,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 20:26:24,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:26:24,989 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) [2024-11-06 20:26:24,992 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 [2024-11-06 20:26:25,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 20:26:25,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 20:26:25,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 20:26:25,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 20:26:25,254 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 20:26:25,255 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation