./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product28.cil.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/product-lines/minepump_spec5_product28.cil.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 27746ab44f558a6ebb6981088914ebe56dec54e6e61aba8484d841196c9545ea --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:10:48,191 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:10:48,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:10:48,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:10:48,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:10:48,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:10:48,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:10:48,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:10:48,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:10:48,258 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:10:48,259 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:10:48,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:10:48,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:10:48,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:10:48,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:10:48,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:10:48,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:10:48,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:10:48,266 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:10:48,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:10:48,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:10:48,270 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:10:48,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:10:48,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:10:48,286 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:10:48,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:10:48,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:10:48,287 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:10:48,288 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:10:48,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:10:48,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:10:48,289 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:10:48,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:10:48,290 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:10:48,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:10:48,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:10:48,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:10:48,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:10:48,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:10:48,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:10:48,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:10:48,294 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:10:48,313 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:10:48,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:10:48,315 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:10:48,316 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:10:48,316 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:10:48,316 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:10:48,317 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:10:48,317 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:10:48,317 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:10:48,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:10:48,318 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:10:48,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:10:48,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:10:48,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:10:48,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:10:48,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:10:48,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:10:48,319 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:10:48,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:10:48,319 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:10:48,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:10:48,319 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:10:48,319 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:10:48,320 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:10:48,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:10:48,320 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:10:48,320 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:10:48,320 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:10:48,320 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:10:48,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:10:48,321 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:10:48,321 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:10:48,321 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:10:48,321 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:10:48,321 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27746ab44f558a6ebb6981088914ebe56dec54e6e61aba8484d841196c9545ea [2021-12-15 11:10:48,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:10:48,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:10:48,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:10:48,532 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:10:48,533 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:10:48,534 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product28.cil.c [2021-12-15 11:10:48,595 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/609230e46/44c1aceb5030475f9967adb89c458014/FLAG3ef2c9b96 [2021-12-15 11:10:49,010 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:10:49,011 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product28.cil.c [2021-12-15 11:10:49,029 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/609230e46/44c1aceb5030475f9967adb89c458014/FLAG3ef2c9b96 [2021-12-15 11:10:49,399 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/609230e46/44c1aceb5030475f9967adb89c458014 [2021-12-15 11:10:49,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:10:49,404 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:10:49,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:10:49,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:10:49,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:10:49,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:10:49" (1/1) ... [2021-12-15 11:10:49,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1908fb32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:49, skipping insertion in model container [2021-12-15 11:10:49,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:10:49" (1/1) ... [2021-12-15 11:10:49,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:10:49,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:10:49,988 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/product-lines/minepump_spec5_product28.cil.c[15131,15144] [2021-12-15 11:10:50,023 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:10:50,034 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:10:50,103 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/product-lines/minepump_spec5_product28.cil.c[15131,15144] [2021-12-15 11:10:50,111 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:10:50,122 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:10:50,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:50 WrapperNode [2021-12-15 11:10:50,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:10:50,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:10:50,123 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:10:50,123 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:10:50,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:50" (1/1) ... [2021-12-15 11:10:50,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:50" (1/1) ... [2021-12-15 11:10:50,163 INFO L137 Inliner]: procedures = 57, calls = 157, calls flagged for inlining = 25, calls inlined = 19, statements flattened = 230 [2021-12-15 11:10:50,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:10:50,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:10:50,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:10:50,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:10:50,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:50" (1/1) ... [2021-12-15 11:10:50,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:50" (1/1) ... [2021-12-15 11:10:50,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:50" (1/1) ... [2021-12-15 11:10:50,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:50" (1/1) ... [2021-12-15 11:10:50,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:50" (1/1) ... [2021-12-15 11:10:50,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:50" (1/1) ... [2021-12-15 11:10:50,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:50" (1/1) ... [2021-12-15 11:10:50,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:10:50,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:10:50,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:10:50,204 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:10:50,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:50" (1/1) ... [2021-12-15 11:10:50,209 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:10:50,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:10:50,262 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 11:10:50,281 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 11:10:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:10:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-15 11:10:50,289 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-15 11:10:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:10:50,290 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:10:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:10:50,290 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:10:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-15 11:10:50,290 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-15 11:10:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-12-15 11:10:50,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-12-15 11:10:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-15 11:10:50,291 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-15 11:10:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:10:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-15 11:10:50,291 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-15 11:10:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:10:50,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:10:50,351 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:10:50,353 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:10:50,521 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:10:50,525 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:10:50,526 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 11:10:50,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:10:50 BoogieIcfgContainer [2021-12-15 11:10:50,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:10:50,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:10:50,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:10:50,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:10:50,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:10:49" (1/3) ... [2021-12-15 11:10:50,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4267bdbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:10:50, skipping insertion in model container [2021-12-15 11:10:50,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:50" (2/3) ... [2021-12-15 11:10:50,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4267bdbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:10:50, skipping insertion in model container [2021-12-15 11:10:50,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:10:50" (3/3) ... [2021-12-15 11:10:50,532 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product28.cil.c [2021-12-15 11:10:50,536 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:10:50,536 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:10:50,564 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:10:50,568 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 11:10:50,569 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:10:50,581 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 66 states have (on average 1.3636363636363635) internal successors, (90), 73 states have internal predecessors, (90), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2021-12-15 11:10:50,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-15 11:10:50,586 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:10:50,587 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 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 11:10:50,587 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:10:50,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:10:50,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1697011403, now seen corresponding path program 1 times [2021-12-15 11:10:50,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:10:50,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578744084] [2021-12-15 11:10:50,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:10:50,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:10:50,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:10:50,639 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 11:10:50,642 INFO L158 Benchmark]: Toolchain (without parser) took 1238.17ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 78.5MB in the end (delta: 26.3MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2021-12-15 11:10:50,643 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 142.6MB. Free memory was 113.8MB in the beginning and 113.8MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:10:50,643 INFO L158 Benchmark]: CACSL2BoogieTranslator took 715.55ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 107.8MB in the end (delta: -3.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 11:10:50,644 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.97ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 105.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:10:50,644 INFO L158 Benchmark]: Boogie Preprocessor took 29.21ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 103.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:10:50,645 INFO L158 Benchmark]: RCFGBuilder took 333.73ms. Allocated memory is still 142.6MB. Free memory was 103.7MB in the beginning and 88.5MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 11:10:50,645 INFO L158 Benchmark]: TraceAbstraction took 113.20ms. Allocated memory is still 142.6MB. Free memory was 87.7MB in the beginning and 78.5MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:10:50,648 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 142.6MB. Free memory was 113.8MB in the beginning and 113.8MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 715.55ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 107.8MB in the end (delta: -3.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.97ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 105.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.21ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 103.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 333.73ms. Allocated memory is still 142.6MB. Free memory was 103.7MB in the beginning and 88.5MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 113.20ms. Allocated memory is still 142.6MB. Free memory was 87.7MB in the beginning and 78.5MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. 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 11:10:50,674 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/product-lines/minepump_spec5_product28.cil.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 27746ab44f558a6ebb6981088914ebe56dec54e6e61aba8484d841196c9545ea --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:10:52,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:10:52,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:10:52,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:10:52,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:10:52,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:10:52,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:10:52,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:10:52,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:10:52,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:10:52,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:10:52,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:10:52,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:10:52,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:10:52,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:10:52,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:10:52,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:10:52,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:10:52,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:10:52,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:10:52,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:10:52,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:10:52,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:10:52,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:10:52,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:10:52,602 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:10:52,602 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:10:52,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:10:52,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:10:52,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:10:52,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:10:52,618 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:10:52,619 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:10:52,619 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:10:52,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:10:52,620 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:10:52,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:10:52,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:10:52,621 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:10:52,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:10:52,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:10:52,623 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 11:10:52,641 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:10:52,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:10:52,643 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:10:52,643 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:10:52,644 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:10:52,644 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:10:52,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:10:52,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:10:52,646 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:10:52,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:10:52,647 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:10:52,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:10:52,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:10:52,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:10:52,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:10:52,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:10:52,648 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 11:10:52,648 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 11:10:52,648 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 11:10:52,648 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:10:52,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:10:52,648 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:10:52,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:10:52,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:10:52,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:10:52,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:10:52,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:10:52,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:10:52,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:10:52,650 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:10:52,650 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 11:10:52,650 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 11:10:52,650 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:10:52,650 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:10:52,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:10:52,651 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:10:52,651 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 11:10:52,651 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27746ab44f558a6ebb6981088914ebe56dec54e6e61aba8484d841196c9545ea [2021-12-15 11:10:52,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:10:52,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:10:52,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:10:52,938 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:10:52,938 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:10:52,939 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product28.cil.c [2021-12-15 11:10:53,029 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7954a110d/4a20d6593dcf4dd6a1bac6560232533d/FLAG5c54f40e7 [2021-12-15 11:10:53,374 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:10:53,375 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product28.cil.c [2021-12-15 11:10:53,398 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7954a110d/4a20d6593dcf4dd6a1bac6560232533d/FLAG5c54f40e7 [2021-12-15 11:10:53,770 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7954a110d/4a20d6593dcf4dd6a1bac6560232533d [2021-12-15 11:10:53,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:10:53,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:10:53,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:10:53,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:10:53,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:10:53,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:10:53" (1/1) ... [2021-12-15 11:10:53,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ebc8a27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:53, skipping insertion in model container [2021-12-15 11:10:53,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:10:53" (1/1) ... [2021-12-15 11:10:53,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:10:53,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:10:53,967 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/product-lines/minepump_spec5_product28.cil.c[15131,15144] [2021-12-15 11:10:53,982 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:10:54,052 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 11:10:54,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:10:54,187 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/product-lines/minepump_spec5_product28.cil.c[15131,15144] [2021-12-15 11:10:54,202 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:10:54,229 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:10:54,334 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/product-lines/minepump_spec5_product28.cil.c[15131,15144] [2021-12-15 11:10:54,346 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:10:54,366 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:10:54,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:54 WrapperNode [2021-12-15 11:10:54,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:10:54,375 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:10:54,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:10:54,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:10:54,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:54" (1/1) ... [2021-12-15 11:10:54,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:54" (1/1) ... [2021-12-15 11:10:54,482 INFO L137 Inliner]: procedures = 59, calls = 157, calls flagged for inlining = 25, calls inlined = 19, statements flattened = 220 [2021-12-15 11:10:54,488 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:10:54,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:10:54,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:10:54,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:10:54,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:54" (1/1) ... [2021-12-15 11:10:54,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:54" (1/1) ... [2021-12-15 11:10:54,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:54" (1/1) ... [2021-12-15 11:10:54,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:54" (1/1) ... [2021-12-15 11:10:54,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:54" (1/1) ... [2021-12-15 11:10:54,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:54" (1/1) ... [2021-12-15 11:10:54,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:54" (1/1) ... [2021-12-15 11:10:54,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:10:54,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:10:54,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:10:54,574 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:10:54,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:54" (1/1) ... [2021-12-15 11:10:54,589 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:10:54,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:10:54,620 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 11:10:54,622 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 11:10:54,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:10:54,651 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-15 11:10:54,651 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-15 11:10:54,652 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:10:54,652 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:10:54,652 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:10:54,652 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:10:54,652 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-15 11:10:54,652 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-15 11:10:54,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 11:10:54,652 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-12-15 11:10:54,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-12-15 11:10:54,653 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-15 11:10:54,653 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-15 11:10:54,653 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-15 11:10:54,653 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-15 11:10:54,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:10:54,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:10:54,728 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:10:54,731 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:10:55,023 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:10:55,029 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:10:55,029 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 11:10:55,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:10:55 BoogieIcfgContainer [2021-12-15 11:10:55,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:10:55,032 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:10:55,032 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:10:55,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:10:55,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:10:53" (1/3) ... [2021-12-15 11:10:55,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ec4488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:10:55, skipping insertion in model container [2021-12-15 11:10:55,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:54" (2/3) ... [2021-12-15 11:10:55,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ec4488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:10:55, skipping insertion in model container [2021-12-15 11:10:55,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:10:55" (3/3) ... [2021-12-15 11:10:55,036 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product28.cil.c [2021-12-15 11:10:55,040 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:10:55,040 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:10:55,084 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:10:55,089 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 11:10:55,090 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:10:55,103 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 66 states have (on average 1.3636363636363635) internal successors, (90), 73 states have internal predecessors, (90), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2021-12-15 11:10:55,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-15 11:10:55,111 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:10:55,111 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 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 11:10:55,112 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:10:55,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:10:55,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1697011403, now seen corresponding path program 1 times [2021-12-15 11:10:55,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 11:10:55,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1970341929] [2021-12-15 11:10:55,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:10:55,128 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 11:10:55,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 11:10:55,130 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 11:10:55,131 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 11:10:55,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-15 11:10:55,361 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 11:10:55,362 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 11:10:55,365 INFO L158 Benchmark]: Toolchain (without parser) took 1590.17ms. Allocated memory is still 65.0MB. Free memory was 47.7MB in the beginning and 40.7MB in the end (delta: 7.0MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2021-12-15 11:10:55,366 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 48.2MB. Free memory was 28.8MB in the beginning and 28.8MB in the end (delta: 51.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:10:55,366 INFO L158 Benchmark]: CACSL2BoogieTranslator took 599.76ms. Allocated memory is still 65.0MB. Free memory was 47.6MB in the beginning and 35.7MB in the end (delta: 11.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-15 11:10:55,367 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.42ms. Allocated memory is still 65.0MB. Free memory was 35.7MB in the beginning and 33.3MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 11:10:55,367 INFO L158 Benchmark]: Boogie Preprocessor took 80.79ms. Allocated memory is still 65.0MB. Free memory was 33.3MB in the beginning and 31.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:10:55,367 INFO L158 Benchmark]: RCFGBuilder took 458.99ms. Allocated memory is still 65.0MB. Free memory was 31.7MB in the beginning and 32.1MB in the end (delta: -442.7kB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2021-12-15 11:10:55,367 INFO L158 Benchmark]: TraceAbstraction took 331.46ms. Allocated memory is still 65.0MB. Free memory was 31.8MB in the beginning and 40.7MB in the end (delta: -8.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:10:55,369 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 48.2MB. Free memory was 28.8MB in the beginning and 28.8MB in the end (delta: 51.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 599.76ms. Allocated memory is still 65.0MB. Free memory was 47.6MB in the beginning and 35.7MB in the end (delta: 11.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.42ms. Allocated memory is still 65.0MB. Free memory was 35.7MB in the beginning and 33.3MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.79ms. Allocated memory is still 65.0MB. Free memory was 33.3MB in the beginning and 31.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 458.99ms. Allocated memory is still 65.0MB. Free memory was 31.7MB in the beginning and 32.1MB in the end (delta: -442.7kB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * TraceAbstraction took 331.46ms. Allocated memory is still 65.0MB. Free memory was 31.8MB in the beginning and 40.7MB in the end (delta: -8.9MB). There was no memory consumed. 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 11:10:55,410 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 Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable