./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2018/Problem11.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-rers2018/Problem11.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 940624650400628fbc547d76c7cce642a9063fb1576962b71733623b165f113e --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:10:14,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:10:14,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:10:14,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:10:14,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:10:14,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:10:14,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:10:14,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:10:14,561 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:10:14,565 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:10:14,566 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:10:14,567 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:10:14,567 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:10:14,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:10:14,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:10:14,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:10:14,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:10:14,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:10:14,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:10:14,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:10:14,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:10:14,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:10:14,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:10:14,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:10:14,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:10:14,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:10:14,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:10:14,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:10:14,594 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:10:14,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:10:14,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:10:14,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:10:14,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:10:14,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:10:14,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:10:14,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:10:14,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:10:14,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:10:14,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:10:14,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:10:14,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:10:14,600 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 10:10:14,626 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:10:14,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:10:14,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:10:14,627 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:10:14,628 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:10:14,628 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:10:14,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:10:14,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:10:14,629 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:10:14,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:10:14,630 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:10:14,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 10:10:14,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:10:14,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:10:14,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:10:14,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:10:14,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:10:14,631 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:10:14,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:10:14,631 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:10:14,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:10:14,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:10:14,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:10:14,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:10:14,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:10:14,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:10:14,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:10:14,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:10:14,633 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 10:10:14,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 10:10:14,634 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:10:14,634 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:10:14,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:10:14,634 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:10:14,634 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 940624650400628fbc547d76c7cce642a9063fb1576962b71733623b165f113e [2021-12-15 10:10:14,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:10:14,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:10:14,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:10:14,872 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:10:14,872 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:10:14,873 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2018/Problem11.c [2021-12-15 10:10:14,923 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ce193d10/5dd4d6816b3e4971a697bd1022c1147b/FLAG36f49c59b [2021-12-15 10:10:15,440 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:10:15,441 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2018/Problem11.c [2021-12-15 10:10:15,466 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ce193d10/5dd4d6816b3e4971a697bd1022c1147b/FLAG36f49c59b [2021-12-15 10:10:15,691 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ce193d10/5dd4d6816b3e4971a697bd1022c1147b [2021-12-15 10:10:15,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:10:15,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:10:15,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:10:15,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:10:15,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:10:15,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:10:15" (1/1) ... [2021-12-15 10:10:15,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d7f914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:10:15, skipping insertion in model container [2021-12-15 10:10:15,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:10:15" (1/1) ... [2021-12-15 10:10:15,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:10:15,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:10:15,889 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/Problem11.c[778,791] [2021-12-15 10:10:15,893 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/Problem11.c[817,830] [2021-12-15 10:10:16,400 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:10:16,411 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:10:16,419 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/Problem11.c[778,791] [2021-12-15 10:10:16,419 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/Problem11.c[817,830] [2021-12-15 10:10:16,539 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:10:16,585 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:10:16,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:10:16 WrapperNode [2021-12-15 10:10:16,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:10:16,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:10:16,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:10:16,586 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:10:16,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:10:16" (1/1) ... [2021-12-15 10:10:16,627 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:10:16" (1/1) ... [2021-12-15 10:10:16,764 INFO L137 Inliner]: procedures = 286, calls = 252, calls flagged for inlining = 148, calls inlined = 148, statements flattened = 2260 [2021-12-15 10:10:16,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:10:16,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:10:16,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:10:16,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:10:16,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:10:16" (1/1) ... [2021-12-15 10:10:16,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:10:16" (1/1) ... [2021-12-15 10:10:16,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:10:16" (1/1) ... [2021-12-15 10:10:16,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:10:16" (1/1) ... [2021-12-15 10:10:16,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:10:16" (1/1) ... [2021-12-15 10:10:16,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:10:16" (1/1) ... [2021-12-15 10:10:16,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:10:16" (1/1) ... [2021-12-15 10:10:16,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:10:16,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:10:16,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:10:16,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:10:16,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:10:16" (1/1) ... [2021-12-15 10:10:16,954 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:10:16,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:10:16,969 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 10:10:16,974 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 10:10:16,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:10:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_a [2021-12-15 10:10:16,995 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_a [2021-12-15 10:10:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_b [2021-12-15 10:10:16,995 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_b [2021-12-15 10:10:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 10:10:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:10:16,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:10:17,191 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:10:17,192 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:11:02,735 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 10:11:02,752 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 10:11:02,752 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 10:11:02,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:11:02 BoogieIcfgContainer [2021-12-15 10:11:02,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 10:11:02,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 10:11:02,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 10:11:02,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 10:11:02,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:10:15" (1/3) ... [2021-12-15 10:11:02,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9473fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:11:02, skipping insertion in model container [2021-12-15 10:11:02,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:10:16" (2/3) ... [2021-12-15 10:11:02,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9473fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:11:02, skipping insertion in model container [2021-12-15 10:11:02,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:11:02" (3/3) ... [2021-12-15 10:11:02,762 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11.c [2021-12-15 10:11:02,766 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 10:11:02,766 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-15 10:11:02,815 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 10:11:02,819 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 10:11:02,820 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-15 10:11:02,843 INFO L276 IsEmpty]: Start isEmpty. Operand has 705 states, 600 states have (on average 1.5866666666666667) internal successors, (952), 602 states have internal predecessors, (952), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2021-12-15 10:11:02,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-15 10:11:02,848 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:11:02,849 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:11:02,849 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting reach_error_bErr0ASSERT_VIOLATIONERROR_FUNCTION === [reach_error_aErr0ASSERT_VIOLATIONERROR_FUNCTION, reach_error_bErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:11:02,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:11:02,853 INFO L85 PathProgramCache]: Analyzing trace with hash -295136918, now seen corresponding path program 1 times [2021-12-15 10:11:02,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:11:02,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733253482] [2021-12-15 10:11:02,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:11:02,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:11:02,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 10:11:02,903 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 10:11:02,906 INFO L158 Benchmark]: Toolchain (without parser) took 47212.43ms. Allocated memory was 94.4MB in the beginning and 188.7MB in the end (delta: 94.4MB). Free memory was 57.3MB in the beginning and 80.9MB in the end (delta: -23.6MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB. [2021-12-15 10:11:02,907 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 94.4MB. Free memory was 51.6MB in the beginning and 51.5MB in the end (delta: 39.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:11:02,907 INFO L158 Benchmark]: CACSL2BoogieTranslator took 891.04ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 57.3MB in the beginning and 53.6MB in the end (delta: 3.7MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. [2021-12-15 10:11:02,908 INFO L158 Benchmark]: Boogie Procedure Inliner took 178.64ms. Allocated memory is still 117.4MB. Free memory was 53.6MB in the beginning and 50.0MB in the end (delta: 3.6MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2021-12-15 10:11:02,908 INFO L158 Benchmark]: Boogie Preprocessor took 181.70ms. Allocated memory is still 117.4MB. Free memory was 50.0MB in the beginning and 50.0MB in the end (delta: -31.5kB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2021-12-15 10:11:02,909 INFO L158 Benchmark]: RCFGBuilder took 45808.17ms. Allocated memory was 117.4MB in the beginning and 188.7MB in the end (delta: 71.3MB). Free memory was 50.0MB in the beginning and 94.4MB in the end (delta: -44.4MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. [2021-12-15 10:11:02,909 INFO L158 Benchmark]: TraceAbstraction took 148.01ms. Allocated memory is still 188.7MB. Free memory was 94.4MB in the beginning and 80.9MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 10:11:02,911 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 94.4MB. Free memory was 51.6MB in the beginning and 51.5MB in the end (delta: 39.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 891.04ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 57.3MB in the beginning and 53.6MB in the end (delta: 3.7MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 178.64ms. Allocated memory is still 117.4MB. Free memory was 53.6MB in the beginning and 50.0MB in the end (delta: 3.6MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 181.70ms. Allocated memory is still 117.4MB. Free memory was 50.0MB in the beginning and 50.0MB in the end (delta: -31.5kB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. * RCFGBuilder took 45808.17ms. Allocated memory was 117.4MB in the beginning and 188.7MB in the end (delta: 71.3MB). Free memory was 50.0MB in the beginning and 94.4MB in the end (delta: -44.4MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. * TraceAbstraction took 148.01ms. Allocated memory is still 188.7MB. Free memory was 94.4MB in the beginning and 80.9MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 10:11:02,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/Problem11.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 940624650400628fbc547d76c7cce642a9063fb1576962b71733623b165f113e --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:11:04,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:11:04,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:11:04,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:11:04,545 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:11:04,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:11:04,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:11:04,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:11:04,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:11:04,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:11:04,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:11:04,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:11:04,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:11:04,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:11:04,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:11:04,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:11:04,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:11:04,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:11:04,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:11:04,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:11:04,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:11:04,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:11:04,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:11:04,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:11:04,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:11:04,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:11:04,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:11:04,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:11:04,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:11:04,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:11:04,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:11:04,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:11:04,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:11:04,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:11:04,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:11:04,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:11:04,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:11:04,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:11:04,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:11:04,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:11:04,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:11:04,589 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 10:11:04,613 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:11:04,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:11:04,613 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:11:04,613 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:11:04,614 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:11:04,614 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:11:04,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:11:04,615 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:11:04,615 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:11:04,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:11:04,615 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:11:04,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:11:04,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:11:04,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:11:04,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:11:04,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:11:04,616 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 10:11:04,616 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 10:11:04,617 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 10:11:04,617 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:11:04,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:11:04,617 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:11:04,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:11:04,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:11:04,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:11:04,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:11:04,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:11:04,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:11:04,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:11:04,618 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:11:04,618 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 10:11:04,619 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 10:11:04,619 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:11:04,620 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:11:04,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:11:04,620 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:11:04,621 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 10:11:04,621 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 940624650400628fbc547d76c7cce642a9063fb1576962b71733623b165f113e [2021-12-15 10:11:04,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:11:04,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:11:04,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:11:04,892 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:11:04,893 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:11:04,894 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2018/Problem11.c [2021-12-15 10:11:04,937 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b878f47da/03817c71963641b28c2e9364bdac274a/FLAGab91a5cb3 [2021-12-15 10:11:05,463 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:11:05,464 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2018/Problem11.c [2021-12-15 10:11:05,488 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b878f47da/03817c71963641b28c2e9364bdac274a/FLAGab91a5cb3 [2021-12-15 10:11:05,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b878f47da/03817c71963641b28c2e9364bdac274a [2021-12-15 10:11:05,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:11:05,972 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:11:05,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:11:05,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:11:05,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:11:05,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:11:05" (1/1) ... [2021-12-15 10:11:05,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@277ac2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:11:05, skipping insertion in model container [2021-12-15 10:11:05,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:11:05" (1/1) ... [2021-12-15 10:11:05,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:11:06,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:11:06,210 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/Problem11.c[778,791] [2021-12-15 10:11:06,232 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/Problem11.c[817,830] [2021-12-15 10:11:06,759 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:11:06,779 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:11:06,789 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/Problem11.c[778,791] [2021-12-15 10:11:06,789 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/Problem11.c[817,830] [2021-12-15 10:11:06,929 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:11:06,987 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:11:06,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:11:06 WrapperNode [2021-12-15 10:11:06,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:11:06,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:11:06,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:11:06,990 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:11:06,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:11:06" (1/1) ... [2021-12-15 10:11:07,052 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:11:06" (1/1) ... [2021-12-15 10:11:07,138 INFO L137 Inliner]: procedures = 286, calls = 252, calls flagged for inlining = 148, calls inlined = 148, statements flattened = 2259 [2021-12-15 10:11:07,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:11:07,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:11:07,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:11:07,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:11:07,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:11:06" (1/1) ... [2021-12-15 10:11:07,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:11:06" (1/1) ... [2021-12-15 10:11:07,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:11:06" (1/1) ... [2021-12-15 10:11:07,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:11:06" (1/1) ... [2021-12-15 10:11:07,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:11:06" (1/1) ... [2021-12-15 10:11:07,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:11:06" (1/1) ... [2021-12-15 10:11:07,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:11:06" (1/1) ... [2021-12-15 10:11:07,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:11:07,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:11:07,251 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:11:07,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:11:07,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:11:06" (1/1) ... [2021-12-15 10:11:07,256 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:11:07,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:11:07,274 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 10:11:07,299 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 10:11:07,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 10:11:07,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:11:07,319 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_a [2021-12-15 10:11:07,320 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_a [2021-12-15 10:11:07,320 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_b [2021-12-15 10:11:07,320 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_b [2021-12-15 10:11:07,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:11:07,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:11:07,473 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:11:07,474 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation