./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-programs/Problem102_label27.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-programs/Problem102_label27.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --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 0a4e4945ca0b28ce5e13b078ff642596e9ea0cdbc548a3c167b0ff68029a77f3 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 13:02:28,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 13:02:28,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 13:02:28,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 13:02:28,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 13:02:28,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 13:02:28,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 13:02:28,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 13:02:28,128 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 13:02:28,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 13:02:28,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 13:02:28,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 13:02:28,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 13:02:28,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 13:02:28,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 13:02:28,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 13:02:28,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 13:02:28,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 13:02:28,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 13:02:28,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 13:02:28,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 13:02:28,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 13:02:28,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 13:02:28,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 13:02:28,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 13:02:28,141 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 13:02:28,142 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 13:02:28,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 13:02:28,143 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 13:02:28,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 13:02:28,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 13:02:28,144 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 13:02:28,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 13:02:28,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 13:02:28,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 13:02:28,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 13:02:28,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 13:02:28,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 13:02:28,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 13:02:28,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 13:02:28,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 13:02:28,149 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 13:02:28,163 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 13:02:28,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 13:02:28,163 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 13:02:28,163 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 13:02:28,164 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 13:02:28,164 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 13:02:28,165 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 13:02:28,165 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 13:02:28,165 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 13:02:28,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 13:02:28,165 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 13:02:28,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 13:02:28,166 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 13:02:28,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 13:02:28,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 13:02:28,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 13:02:28,166 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 13:02:28,166 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 13:02:28,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 13:02:28,167 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 13:02:28,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 13:02:28,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 13:02:28,167 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 13:02:28,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 13:02:28,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 13:02:28,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 13:02:28,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 13:02:28,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 13:02:28,168 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 13:02:28,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 13:02:28,168 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 13:02:28,168 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 13:02:28,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 13:02:28,169 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 13:02:28,169 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a4e4945ca0b28ce5e13b078ff642596e9ea0cdbc548a3c167b0ff68029a77f3 [2021-12-14 13:02:28,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 13:02:28,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 13:02:28,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 13:02:28,336 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 13:02:28,336 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 13:02:28,337 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-programs/Problem102_label27.c [2021-12-14 13:02:28,383 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65bf65f81/9b55bc4e34d145e8a3ac299d53f0ce7e/FLAG12f71194d [2021-12-14 13:02:30,680 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 13:02:30,680 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-programs/Problem102_label27.c [2021-12-14 13:02:30,885 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65bf65f81/9b55bc4e34d145e8a3ac299d53f0ce7e/FLAG12f71194d [2021-12-14 13:02:31,114 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65bf65f81/9b55bc4e34d145e8a3ac299d53f0ce7e [2021-12-14 13:02:31,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 13:02:31,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 13:02:31,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 13:02:31,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 13:02:31,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 13:02:31,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:02:31" (1/1) ... [2021-12-14 13:02:31,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c3c49ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:02:31, skipping insertion in model container [2021-12-14 13:02:31,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:02:31" (1/1) ... [2021-12-14 13:02:31,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 13:02:32,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 13:02:48,541 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-programs/Problem102_label27.c[5714920,5714933] [2021-12-14 13:02:48,615 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 13:02:48,621 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 13:02:56,580 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-programs/Problem102_label27.c[5714920,5714933] [2021-12-14 13:02:56,583 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 13:03:00,095 INFO L208 MainTranslator]: Completed translation [2021-12-14 13:03:00,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:03:00 WrapperNode [2021-12-14 13:03:00,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 13:03:00,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 13:03:00,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 13:03:00,096 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 13:03:00,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:03:00" (1/1) ... [2021-12-14 13:03:01,164 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:03:00" (1/1) ... [2021-12-14 13:03:04,699 INFO L137 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184295 [2021-12-14 13:03:04,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 13:03:04,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 13:03:04,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 13:03:04,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 13:03:04,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:03:00" (1/1) ... [2021-12-14 13:03:04,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:03:00" (1/1) ... [2021-12-14 13:03:05,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:03:00" (1/1) ... [2021-12-14 13:03:05,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:03:00" (1/1) ... [2021-12-14 13:03:07,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:03:00" (1/1) ... [2021-12-14 13:03:08,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:03:00" (1/1) ... [2021-12-14 13:03:08,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:03:00" (1/1) ... [2021-12-14 13:03:09,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 13:03:09,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 13:03:09,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 13:03:09,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 13:03:09,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:03:00" (1/1) ... [2021-12-14 13:03:09,337 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 13:03:09,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 13:03:09,363 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 13:03:09,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 13:03:09,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 13:03:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 13:03:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 13:03:09,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 13:03:09,568 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 13:03:09,569 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation