./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-programs/Problem103_label50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 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/Problem103_label50.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 bccc4c8de413c9dd734be1e3ed9d72294c012c56a7e84ec0d648e66e97e0339d --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:18:38,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:18:38,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:18:38,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:18:38,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:18:38,301 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:18:38,303 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:18:38,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:18:38,310 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:18:38,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:18:38,312 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:18:38,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:18:38,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:18:38,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:18:38,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:18:38,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:18:38,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:18:38,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:18:38,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:18:38,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:18:38,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:18:38,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:18:38,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:18:38,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:18:38,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:18:38,337 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:18:38,337 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:18:38,338 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:18:38,338 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:18:38,339 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:18:38,339 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:18:38,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:18:38,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:18:38,341 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:18:38,342 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:18:38,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:18:38,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:18:38,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:18:38,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:18:38,344 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:18:38,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:18:38,352 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 10:18:38,379 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:18:38,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:18:38,382 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:18:38,382 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:18:38,383 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:18:38,383 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:18:38,384 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:18:38,384 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:18:38,384 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:18:38,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:18:38,386 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:18:38,386 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 10:18:38,386 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:18:38,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:18:38,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:18:38,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:18:38,387 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:18:38,387 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:18:38,387 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:18:38,387 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:18:38,387 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:18:38,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:18:38,388 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:18:38,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:18:38,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:18:38,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:18:38,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:18:38,389 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:18:38,389 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 10:18:38,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 10:18:38,389 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:18:38,389 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:18:38,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:18:38,390 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:18:38,390 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bccc4c8de413c9dd734be1e3ed9d72294c012c56a7e84ec0d648e66e97e0339d [2021-12-15 10:18:38,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:18:38,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:18:38,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:18:38,649 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:18:38,650 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:18:38,651 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-programs/Problem103_label50.c [2021-12-15 10:18:38,719 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac55ac7d7/bfe67729dafa4678a7450e0859128e56/FLAGdc195ffd0 [2021-12-15 10:18:41,622 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:18:41,623 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-programs/Problem103_label50.c [2021-12-15 10:18:41,873 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac55ac7d7/bfe67729dafa4678a7450e0859128e56/FLAGdc195ffd0 [2021-12-15 10:18:42,034 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac55ac7d7/bfe67729dafa4678a7450e0859128e56 [2021-12-15 10:18:42,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:18:42,037 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:18:42,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:18:42,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:18:42,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:18:42,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:18:42" (1/1) ... [2021-12-15 10:18:42,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7db095eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:18:42, skipping insertion in model container [2021-12-15 10:18:42,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:18:42" (1/1) ... [2021-12-15 10:18:42,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:18:43,349 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:19:00,851 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/Problem103_label50.c[6307260,6307273] [2021-12-15 10:19:00,943 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:19:00,950 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:19:10,266 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/Problem103_label50.c[6307260,6307273] [2021-12-15 10:19:10,272 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:19:13,407 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:19:13,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:19:13 WrapperNode [2021-12-15 10:19:13,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:19:13,409 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:19:13,409 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:19:13,409 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:19:13,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:19:13" (1/1) ... [2021-12-15 10:19:14,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:19:13" (1/1) ... [2021-12-15 10:19:18,576 INFO L137 Inliner]: procedures = 88, calls = 82, calls flagged for inlining = 77, calls inlined = 77, statements flattened = 197824 [2021-12-15 10:19:18,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:19:18,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:19:18,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:19:18,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:19:18,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:19:13" (1/1) ... [2021-12-15 10:19:18,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:19:13" (1/1) ... [2021-12-15 10:19:20,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:19:13" (1/1) ... [2021-12-15 10:19:20,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:19:13" (1/1) ... [2021-12-15 10:19:22,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:19:13" (1/1) ... [2021-12-15 10:19:22,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:19:13" (1/1) ... [2021-12-15 10:19:22,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:19:13" (1/1) ... [2021-12-15 10:19:23,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:19:23,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:19:23,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:19:23,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:19:23,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:19:13" (1/1) ... [2021-12-15 10:19:23,623 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:19:23,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:19:23,652 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) [2021-12-15 10:19:23,674 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 [2021-12-15 10:19:23,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:19:23,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 10:19:23,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:19:23,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:19:23,914 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:19:23,916 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation