./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem08_label18.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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-rers2012/Problem08_label18.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 fb696ee403e162ffc39f4b517646ecc006a80a9fd619ff91a6fec980fa390bc3 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 10:48:48,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 10:48:48,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 10:48:48,507 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 10:48:48,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 10:48:48,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 10:48:48,513 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 10:48:48,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 10:48:48,518 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 10:48:48,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 10:48:48,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 10:48:48,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 10:48:48,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 10:48:48,532 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 10:48:48,534 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 10:48:48,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 10:48:48,538 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 10:48:48,539 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 10:48:48,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 10:48:48,543 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 10:48:48,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 10:48:48,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 10:48:48,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 10:48:48,550 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 10:48:48,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 10:48:48,555 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 10:48:48,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 10:48:48,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 10:48:48,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 10:48:48,558 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 10:48:48,558 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 10:48:48,559 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 10:48:48,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 10:48:48,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 10:48:48,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 10:48:48,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 10:48:48,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 10:48:48,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 10:48:48,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 10:48:48,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 10:48:48,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 10:48:48,566 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 10:48:48,596 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 10:48:48,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 10:48:48,599 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 10:48:48,599 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 10:48:48,600 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 10:48:48,600 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 10:48:48,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 10:48:48,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 10:48:48,601 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 10:48:48,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 10:48:48,602 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 10:48:48,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 10:48:48,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 10:48:48,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 10:48:48,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 10:48:48,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 10:48:48,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 10:48:48,604 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 10:48:48,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 10:48:48,604 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 10:48:48,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 10:48:48,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 10:48:48,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 10:48:48,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 10:48:48,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 10:48:48,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 10:48:48,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 10:48:48,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 10:48:48,607 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 10:48:48,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 10:48:48,607 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 10:48:48,607 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 10:48:48,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 10:48:48,608 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 10:48:48,608 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb696ee403e162ffc39f4b517646ecc006a80a9fd619ff91a6fec980fa390bc3 [2021-12-21 10:48:48,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 10:48:48,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 10:48:48,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 10:48:48,889 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 10:48:48,890 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 10:48:48,891 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem08_label18.c [2021-12-21 10:48:48,959 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02530b0ee/009792700e324385bd4fcaf9f3941ab9/FLAG09331d3ad [2021-12-21 10:48:51,893 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 10:48:51,893 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem08_label18.c [2021-12-21 10:48:52,088 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02530b0ee/009792700e324385bd4fcaf9f3941ab9/FLAG09331d3ad [2021-12-21 10:48:52,292 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02530b0ee/009792700e324385bd4fcaf9f3941ab9 [2021-12-21 10:48:52,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 10:48:52,296 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 10:48:52,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 10:48:52,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 10:48:52,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 10:48:52,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:48:52" (1/1) ... [2021-12-21 10:48:52,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425ada48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:48:52, skipping insertion in model container [2021-12-21 10:48:52,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:48:52" (1/1) ... [2021-12-21 10:48:52,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 10:48:53,480 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 10:49:09,773 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-rers2012/Problem08_label18.c[5715574,5715587] [2021-12-21 10:49:09,867 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 10:49:09,874 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 10:49:18,231 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-rers2012/Problem08_label18.c[5715574,5715587] [2021-12-21 10:49:18,235 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 10:49:21,544 INFO L208 MainTranslator]: Completed translation [2021-12-21 10:49:21,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:49:21 WrapperNode [2021-12-21 10:49:21,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 10:49:21,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 10:49:21,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 10:49:21,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 10:49:21,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:49:21" (1/1) ... [2021-12-21 10:49:22,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:49:21" (1/1) ... [2021-12-21 10:49:26,498 INFO L137 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184288 [2021-12-21 10:49:26,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 10:49:26,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 10:49:26,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 10:49:26,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 10:49:26,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:49:21" (1/1) ... [2021-12-21 10:49:26,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:49:21" (1/1) ... [2021-12-21 10:49:27,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:49:21" (1/1) ... [2021-12-21 10:49:27,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:49:21" (1/1) ... [2021-12-21 10:49:29,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:49:21" (1/1) ... [2021-12-21 10:49:29,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:49:21" (1/1) ... [2021-12-21 10:49:30,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:49:21" (1/1) ... [2021-12-21 10:49:30,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 10:49:30,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 10:49:30,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 10:49:30,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 10:49:31,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:49:21" (1/1) ... [2021-12-21 10:49:31,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 10:49:31,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 10:49:31,043 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) [2021-12-21 10:49:31,064 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 [2021-12-21 10:49:31,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 10:49:31,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 10:49:31,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 10:49:31,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 10:49:31,264 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 10:49:31,265 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation