./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/AllInterval-006.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/xcsp/AllInterval-006.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 5db620ad631bbb2b4f2f184a6694f3d470d0214c96a5cb4b6c65ad330c77841f --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:43:21,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:43:21,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:43:21,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:43:21,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:43:21,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:43:21,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:43:21,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:43:21,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:43:21,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:43:21,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:43:21,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:43:21,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:43:21,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:43:21,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:43:21,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:43:21,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:43:21,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:43:21,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:43:21,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:43:21,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:43:21,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:43:21,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:43:21,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:43:21,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:43:21,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:43:21,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:43:21,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:43:21,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:43:21,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:43:21,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:43:21,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:43:21,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:43:21,892 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:43:21,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:43:21,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:43:21,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:43:21,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:43:21,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:43:21,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:43:21,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:43:21,897 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:43:21,916 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:43:21,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:43:21,918 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:43:21,918 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:43:21,919 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:43:21,919 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:43:21,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:43:21,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:43:21,920 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:43:21,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:43:21,921 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:43:21,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:43:21,921 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:43:21,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:43:21,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:43:21,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:43:21,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:43:21,922 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:43:21,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:43:21,922 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:43:21,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:43:21,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:43:21,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:43:21,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:43:21,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:43:21,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:43:21,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:43:21,923 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:43:21,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:43:21,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:43:21,924 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:43:21,924 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:43:21,924 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:43:21,924 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:43:21,924 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db620ad631bbb2b4f2f184a6694f3d470d0214c96a5cb4b6c65ad330c77841f [2021-12-15 11:43:22,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:43:22,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:43:22,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:43:22,132 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:43:22,132 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:43:22,133 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/AllInterval-006.c [2021-12-15 11:43:22,185 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4603acd54/4434daaa04484dae8dda68deeca07b1f/FLAG6a5242f49 [2021-12-15 11:43:22,653 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:43:22,671 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/AllInterval-006.c [2021-12-15 11:43:22,679 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4603acd54/4434daaa04484dae8dda68deeca07b1f/FLAG6a5242f49 [2021-12-15 11:43:23,027 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4603acd54/4434daaa04484dae8dda68deeca07b1f [2021-12-15 11:43:23,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:43:23,030 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:43:23,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:43:23,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:43:23,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:43:23,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:43:23" (1/1) ... [2021-12-15 11:43:23,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d4fd71f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:23, skipping insertion in model container [2021-12-15 11:43:23,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:43:23" (1/1) ... [2021-12-15 11:43:23,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:43:23,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:43:23,196 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/xcsp/AllInterval-006.c[3098,3111] [2021-12-15 11:43:23,203 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:43:23,208 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:43:23,224 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/xcsp/AllInterval-006.c[3098,3111] [2021-12-15 11:43:23,225 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:43:23,234 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:43:23,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:23 WrapperNode [2021-12-15 11:43:23,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:43:23,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:43:23,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:43:23,236 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:43:23,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:23" (1/1) ... [2021-12-15 11:43:23,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:23" (1/1) ... [2021-12-15 11:43:23,260 INFO L137 Inliner]: procedures = 13, calls = 59, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 144 [2021-12-15 11:43:23,261 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:43:23,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:43:23,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:43:23,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:43:23,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:23" (1/1) ... [2021-12-15 11:43:23,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:23" (1/1) ... [2021-12-15 11:43:23,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:23" (1/1) ... [2021-12-15 11:43:23,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:23" (1/1) ... [2021-12-15 11:43:23,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:23" (1/1) ... [2021-12-15 11:43:23,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:23" (1/1) ... [2021-12-15 11:43:23,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:23" (1/1) ... [2021-12-15 11:43:23,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:43:23,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:43:23,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:43:23,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:43:23,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:23" (1/1) ... [2021-12-15 11:43:23,294 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:43:23,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:43:23,313 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 11:43:23,316 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 11:43:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:43:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:43:23,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:43:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:43:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2021-12-15 11:43:23,349 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2021-12-15 11:43:23,395 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:43:23,396 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:43:23,517 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:43:23,523 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:43:23,523 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 11:43:23,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:43:23 BoogieIcfgContainer [2021-12-15 11:43:23,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:43:23,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:43:23,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:43:23,528 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:43:23,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:43:23" (1/3) ... [2021-12-15 11:43:23,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500f95cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:43:23, skipping insertion in model container [2021-12-15 11:43:23,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:23" (2/3) ... [2021-12-15 11:43:23,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500f95cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:43:23, skipping insertion in model container [2021-12-15 11:43:23,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:43:23" (3/3) ... [2021-12-15 11:43:23,530 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-006.c [2021-12-15 11:43:23,533 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:43:23,533 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:43:23,562 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:43:23,567 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 11:43:23,567 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:43:23,581 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 35 states have internal predecessors, (41), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2021-12-15 11:43:23,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2021-12-15 11:43:23,608 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:43:23,608 INFO L514 BasicCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:43:23,609 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:43:23,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:43:23,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1899664910, now seen corresponding path program 1 times [2021-12-15 11:43:23,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:43:23,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670044213] [2021-12-15 11:43:23,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:43:23,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:43:23,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:43:23,659 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 11:43:23,662 INFO L158 Benchmark]: Toolchain (without parser) took 631.94ms. Allocated memory is still 90.2MB. Free memory was 57.5MB in the beginning and 37.6MB in the end (delta: 19.9MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2021-12-15 11:43:23,663 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory is still 32.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:43:23,663 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.52ms. Allocated memory is still 90.2MB. Free memory was 57.3MB in the beginning and 64.7MB in the end (delta: -7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:43:23,664 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.44ms. Allocated memory is still 90.2MB. Free memory was 64.7MB in the beginning and 62.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:43:23,664 INFO L158 Benchmark]: Boogie Preprocessor took 14.79ms. Allocated memory is still 90.2MB. Free memory was 62.8MB in the beginning and 61.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:43:23,664 INFO L158 Benchmark]: RCFGBuilder took 247.86ms. Allocated memory is still 90.2MB. Free memory was 61.6MB in the beginning and 48.8MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 11:43:23,665 INFO L158 Benchmark]: TraceAbstraction took 135.94ms. Allocated memory is still 90.2MB. Free memory was 48.5MB in the beginning and 37.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 11:43:23,667 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory is still 32.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 202.52ms. Allocated memory is still 90.2MB. Free memory was 57.3MB in the beginning and 64.7MB in the end (delta: -7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.44ms. Allocated memory is still 90.2MB. Free memory was 64.7MB in the beginning and 62.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.79ms. Allocated memory is still 90.2MB. Free memory was 62.8MB in the beginning and 61.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 247.86ms. Allocated memory is still 90.2MB. Free memory was 61.6MB in the beginning and 48.8MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 135.94ms. Allocated memory is still 90.2MB. Free memory was 48.5MB in the beginning and 37.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. 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 11:43:23,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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/xcsp/AllInterval-006.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 5db620ad631bbb2b4f2f184a6694f3d470d0214c96a5cb4b6c65ad330c77841f --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:43:25,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:43:25,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:43:25,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:43:25,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:43:25,850 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:43:25,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:43:25,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:43:25,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:43:25,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:43:25,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:43:25,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:43:25,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:43:25,864 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:43:25,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:43:25,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:43:25,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:43:25,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:43:25,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:43:25,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:43:25,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:43:25,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:43:25,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:43:25,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:43:25,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:43:25,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:43:25,882 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:43:25,883 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:43:25,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:43:25,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:43:25,885 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:43:25,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:43:25,886 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:43:25,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:43:25,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:43:25,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:43:25,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:43:25,889 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:43:25,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:43:25,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:43:25,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:43:25,892 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 11:43:25,920 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:43:25,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:43:25,921 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:43:25,922 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:43:25,922 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:43:25,922 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:43:25,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:43:25,924 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:43:25,924 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:43:25,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:43:25,925 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:43:25,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:43:25,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:43:25,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:43:25,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:43:25,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:43:25,926 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 11:43:25,926 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 11:43:25,926 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 11:43:25,926 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:43:25,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:43:25,926 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:43:25,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:43:25,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:43:25,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:43:25,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:43:25,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:43:25,932 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:43:25,932 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:43:25,933 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:43:25,933 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 11:43:25,933 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 11:43:25,933 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:43:25,933 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:43:25,933 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:43:25,934 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:43:25,934 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 11:43:25,934 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db620ad631bbb2b4f2f184a6694f3d470d0214c96a5cb4b6c65ad330c77841f [2021-12-15 11:43:26,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:43:26,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:43:26,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:43:26,232 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:43:26,233 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:43:26,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/AllInterval-006.c [2021-12-15 11:43:26,299 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f979dfe88/c56edd7971bd45a982168c40d593c3ab/FLAG3ee254012 [2021-12-15 11:43:26,688 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:43:26,688 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/AllInterval-006.c [2021-12-15 11:43:26,695 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f979dfe88/c56edd7971bd45a982168c40d593c3ab/FLAG3ee254012 [2021-12-15 11:43:26,705 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f979dfe88/c56edd7971bd45a982168c40d593c3ab [2021-12-15 11:43:26,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:43:26,708 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:43:26,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:43:26,709 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:43:26,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:43:26,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:43:26" (1/1) ... [2021-12-15 11:43:26,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a99a209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:26, skipping insertion in model container [2021-12-15 11:43:26,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:43:26" (1/1) ... [2021-12-15 11:43:26,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:43:26,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:43:26,880 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/xcsp/AllInterval-006.c[3098,3111] [2021-12-15 11:43:26,888 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:43:26,899 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:43:26,931 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/xcsp/AllInterval-006.c[3098,3111] [2021-12-15 11:43:26,938 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:43:26,956 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:43:26,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:26 WrapperNode [2021-12-15 11:43:26,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:43:26,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:43:26,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:43:26,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:43:26,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:26" (1/1) ... [2021-12-15 11:43:26,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:26" (1/1) ... [2021-12-15 11:43:27,037 INFO L137 Inliner]: procedures = 13, calls = 59, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 133 [2021-12-15 11:43:27,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:43:27,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:43:27,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:43:27,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:43:27,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:26" (1/1) ... [2021-12-15 11:43:27,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:26" (1/1) ... [2021-12-15 11:43:27,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:26" (1/1) ... [2021-12-15 11:43:27,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:26" (1/1) ... [2021-12-15 11:43:27,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:26" (1/1) ... [2021-12-15 11:43:27,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:26" (1/1) ... [2021-12-15 11:43:27,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:26" (1/1) ... [2021-12-15 11:43:27,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:43:27,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:43:27,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:43:27,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:43:27,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:26" (1/1) ... [2021-12-15 11:43:27,108 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:43:27,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:43:27,125 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 11:43:27,144 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 11:43:27,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:43:27,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:43:27,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:43:27,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 11:43:27,162 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2021-12-15 11:43:27,162 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2021-12-15 11:43:27,206 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:43:27,208 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:43:27,341 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:43:27,357 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:43:27,358 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 11:43:27,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:43:27 BoogieIcfgContainer [2021-12-15 11:43:27,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:43:27,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:43:27,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:43:27,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:43:27,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:43:26" (1/3) ... [2021-12-15 11:43:27,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29980b0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:43:27, skipping insertion in model container [2021-12-15 11:43:27,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:43:26" (2/3) ... [2021-12-15 11:43:27,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29980b0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:43:27, skipping insertion in model container [2021-12-15 11:43:27,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:43:27" (3/3) ... [2021-12-15 11:43:27,380 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-006.c [2021-12-15 11:43:27,384 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:43:27,384 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:43:27,431 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:43:27,438 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 11:43:27,439 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:43:27,459 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 35 states have internal predecessors, (41), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2021-12-15 11:43:27,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2021-12-15 11:43:27,481 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:43:27,482 INFO L514 BasicCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:43:27,482 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:43:27,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:43:27,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1899664910, now seen corresponding path program 1 times [2021-12-15 11:43:27,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 11:43:27,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1119102360] [2021-12-15 11:43:27,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:43:27,498 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 11:43:27,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 11:43:27,516 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 11:43:27,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 11:43:27,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 11:43:27,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 11:43:27,766 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.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.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 11:43:27,771 INFO L158 Benchmark]: Toolchain (without parser) took 1061.80ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 23.9MB in the beginning and 29.3MB in the end (delta: -5.3MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2021-12-15 11:43:27,772 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 48.2MB. Free memory was 30.4MB in the beginning and 30.4MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:43:27,772 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.00ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 23.7MB in the beginning and 42.5MB in the end (delta: -18.8MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2021-12-15 11:43:27,773 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.35ms. Allocated memory is still 58.7MB. Free memory was 42.3MB in the beginning and 40.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:43:27,774 INFO L158 Benchmark]: Boogie Preprocessor took 52.50ms. Allocated memory is still 58.7MB. Free memory was 40.5MB in the beginning and 39.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:43:27,775 INFO L158 Benchmark]: RCFGBuilder took 268.47ms. Allocated memory is still 58.7MB. Free memory was 39.2MB in the beginning and 39.7MB in the end (delta: -531.2kB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2021-12-15 11:43:27,776 INFO L158 Benchmark]: TraceAbstraction took 408.66ms. Allocated memory is still 58.7MB. Free memory was 39.3MB in the beginning and 29.3MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 11:43:27,779 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 48.2MB. Free memory was 30.4MB in the beginning and 30.4MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.00ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 23.7MB in the beginning and 42.5MB in the end (delta: -18.8MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.35ms. Allocated memory is still 58.7MB. Free memory was 42.3MB in the beginning and 40.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.50ms. Allocated memory is still 58.7MB. Free memory was 40.5MB in the beginning and 39.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 268.47ms. Allocated memory is still 58.7MB. Free memory was 39.2MB in the beginning and 39.7MB in the end (delta: -531.2kB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * TraceAbstraction took 408.66ms. Allocated memory is still 58.7MB. Free memory was 39.3MB in the beginning and 29.3MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. 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 11:43:27,810 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable