./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem08_label56.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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_label56.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 f94374cdf982c55cd2ef07cc4943674d0e4099ebab6e954311b9f3560c14fc97 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 15:16:03,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 15:16:03,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 15:16:03,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 15:16:03,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 15:16:03,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 15:16:03,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 15:16:03,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 15:16:03,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 15:16:03,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 15:16:03,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 15:16:03,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 15:16:03,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 15:16:03,115 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 15:16:03,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 15:16:03,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 15:16:03,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 15:16:03,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 15:16:03,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 15:16:03,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 15:16:03,133 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 15:16:03,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 15:16:03,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 15:16:03,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 15:16:03,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 15:16:03,141 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 15:16:03,141 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 15:16:03,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 15:16:03,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 15:16:03,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 15:16:03,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 15:16:03,146 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 15:16:03,147 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 15:16:03,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 15:16:03,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 15:16:03,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 15:16:03,150 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 15:16:03,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 15:16:03,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 15:16:03,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 15:16:03,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 15:16:03,153 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 15:16:03,192 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 15:16:03,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 15:16:03,193 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 15:16:03,193 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 15:16:03,194 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 15:16:03,195 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 15:16:03,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 15:16:03,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 15:16:03,196 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 15:16:03,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 15:16:03,197 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 15:16:03,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 15:16:03,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 15:16:03,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 15:16:03,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 15:16:03,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 15:16:03,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 15:16:03,198 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 15:16:03,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 15:16:03,199 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 15:16:03,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 15:16:03,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 15:16:03,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 15:16:03,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 15:16:03,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 15:16:03,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 15:16:03,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 15:16:03,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 15:16:03,202 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 15:16:03,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 15:16:03,202 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 15:16:03,202 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 15:16:03,203 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 15:16:03,203 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f94374cdf982c55cd2ef07cc4943674d0e4099ebab6e954311b9f3560c14fc97 [2022-02-20 15:16:03,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 15:16:03,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 15:16:03,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 15:16:03,434 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 15:16:03,435 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 15:16:03,436 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem08_label56.c [2022-02-20 15:16:03,507 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31e3367d5/c9e304497e98497bbfde6293eadeb226/FLAGb8c295473 [2022-02-20 15:16:06,027 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 15:16:06,028 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem08_label56.c [2022-02-20 15:16:06,233 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31e3367d5/c9e304497e98497bbfde6293eadeb226/FLAGb8c295473 [2022-02-20 15:16:06,738 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31e3367d5/c9e304497e98497bbfde6293eadeb226 [2022-02-20 15:16:06,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 15:16:06,741 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 15:16:06,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 15:16:06,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 15:16:06,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 15:16:06,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 03:16:06" (1/1) ... [2022-02-20 15:16:06,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aae94d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:16:06, skipping insertion in model container [2022-02-20 15:16:06,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 03:16:06" (1/1) ... [2022-02-20 15:16:06,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 15:16:08,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 15:16:25,093 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_label56.c[5716079,5716092] [2022-02-20 15:16:25,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 15:16:25,197 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 15:16:34,122 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_label56.c[5716079,5716092] [2022-02-20 15:16:34,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 15:16:37,325 INFO L208 MainTranslator]: Completed translation [2022-02-20 15:16:37,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:16:37 WrapperNode [2022-02-20 15:16:37,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 15:16:37,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 15:16:37,327 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 15:16:37,327 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 15:16:37,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:16:37" (1/1) ... [2022-02-20 15:16:38,348 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:16:37" (1/1) ... [2022-02-20 15:16:43,839 INFO L137 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184288 [2022-02-20 15:16:43,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 15:16:43,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 15:16:43,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 15:16:43,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 15:16:43,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:16:37" (1/1) ... [2022-02-20 15:16:43,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:16:37" (1/1) ... [2022-02-20 15:16:44,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:16:37" (1/1) ... [2022-02-20 15:16:44,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:16:37" (1/1) ... [2022-02-20 15:16:46,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:16:37" (1/1) ... [2022-02-20 15:16:47,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:16:37" (1/1) ... [2022-02-20 15:16:47,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:16:37" (1/1) ... [2022-02-20 15:16:48,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 15:16:48,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 15:16:48,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 15:16:48,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 15:16:48,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:16:37" (1/1) ... [2022-02-20 15:16:48,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 15:16:48,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 15:16:48,921 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) [2022-02-20 15:16:48,943 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 [2022-02-20 15:16:48,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 15:16:48,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 15:16:48,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 15:16:48,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 15:16:49,141 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 15:16:49,143 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation