./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2018/Problem14.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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-rers2018/Problem14.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 2963c439916526ffa81953647bf151383045aff7c484e45d358b67c181a267f7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 13:15:15,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 13:15:15,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 13:15:15,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 13:15:15,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 13:15:15,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 13:15:15,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 13:15:15,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 13:15:15,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 13:15:15,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 13:15:15,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 13:15:15,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 13:15:15,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 13:15:15,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 13:15:15,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 13:15:15,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 13:15:15,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 13:15:15,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 13:15:15,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 13:15:15,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 13:15:15,127 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 13:15:15,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 13:15:15,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 13:15:15,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 13:15:15,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 13:15:15,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 13:15:15,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 13:15:15,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 13:15:15,135 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 13:15:15,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 13:15:15,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 13:15:15,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 13:15:15,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 13:15:15,142 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 13:15:15,143 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 13:15:15,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 13:15:15,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 13:15:15,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 13:15:15,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 13:15:15,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 13:15:15,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 13:15:15,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 13:15:15,146 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 13:15:15,168 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 13:15:15,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 13:15:15,169 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 13:15:15,169 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 13:15:15,169 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 13:15:15,169 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 13:15:15,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 13:15:15,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 13:15:15,170 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 13:15:15,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 13:15:15,171 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 13:15:15,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 13:15:15,171 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 13:15:15,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 13:15:15,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 13:15:15,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 13:15:15,172 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 13:15:15,172 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 13:15:15,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 13:15:15,172 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 13:15:15,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 13:15:15,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 13:15:15,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 13:15:15,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 13:15:15,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:15:15,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 13:15:15,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 13:15:15,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 13:15:15,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 13:15:15,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 13:15:15,174 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 13:15:15,174 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 13:15:15,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 13:15:15,174 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2963c439916526ffa81953647bf151383045aff7c484e45d358b67c181a267f7 [2022-07-22 13:15:15,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 13:15:15,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 13:15:15,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 13:15:15,343 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 13:15:15,344 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 13:15:15,345 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2018/Problem14.c [2022-07-22 13:15:15,401 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/807b60181/d0c092e3266f4765932298e7f2934ba1/FLAG0db858975 [2022-07-22 13:15:17,025 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 13:15:17,025 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2018/Problem14.c [2022-07-22 13:15:17,164 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/807b60181/d0c092e3266f4765932298e7f2934ba1/FLAG0db858975 [2022-07-22 13:15:17,420 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/807b60181/d0c092e3266f4765932298e7f2934ba1 [2022-07-22 13:15:17,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 13:15:17,423 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 13:15:17,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 13:15:17,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 13:15:17,427 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 13:15:17,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:15:17" (1/1) ... [2022-07-22 13:15:17,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@612538e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:15:17, skipping insertion in model container [2022-07-22 13:15:17,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:15:17" (1/1) ... [2022-07-22 13:15:17,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 13:15:17,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 13:15:18,288 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-rers2018/Problem14.c[778,791] [2022-07-22 13:15:18,332 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-rers2018/Problem14.c[817,830] [2022-07-22 13:15:44,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:15:44,503 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 13:15:44,510 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-rers2018/Problem14.c[778,791] [2022-07-22 13:15:44,511 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-rers2018/Problem14.c[817,830] [2022-07-22 13:15:46,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:15:47,407 INFO L208 MainTranslator]: Completed translation [2022-07-22 13:15:47,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:15:47 WrapperNode [2022-07-22 13:15:47,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 13:15:47,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 13:15:47,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 13:15:47,408 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 13:15:47,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:15:47" (1/1) ... [2022-07-22 13:15:48,420 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:15:47" (1/1) ... [2022-07-22 13:15:56,567 INFO L137 Inliner]: procedures = 595, calls = 586, calls flagged for inlining = 482, calls inlined = 482, statements flattened = 83248 [2022-07-22 13:15:56,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 13:15:56,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 13:15:56,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 13:15:56,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 13:15:56,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:15:47" (1/1) ... [2022-07-22 13:15:56,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:15:47" (1/1) ... [2022-07-22 13:15:59,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:15:47" (1/1) ... [2022-07-22 13:15:59,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:15:47" (1/1) ... [2022-07-22 13:16:04,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:15:47" (1/1) ... [2022-07-22 13:16:04,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:15:47" (1/1) ... [2022-07-22 13:16:05,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:15:47" (1/1) ... [2022-07-22 13:16:07,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 13:16:07,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 13:16:07,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 13:16:07,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 13:16:07,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:15:47" (1/1) ... [2022-07-22 13:16:07,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:16:07,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 13:16:07,624 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) [2022-07-22 13:16:07,643 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 [2022-07-22 13:16:07,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 13:16:07,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 13:16:07,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 13:16:07,661 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_a [2022-07-22 13:16:07,661 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_a [2022-07-22 13:16:07,661 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_b [2022-07-22 13:16:07,662 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_b [2022-07-22 13:16:07,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 13:16:07,945 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 13:16:07,946 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation