./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product63.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_spec2_product63.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 bff509ff7af2b9788fd6216f7196709183d48c973cf9a066c9793f96467b2abf --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:09:01,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:09:01,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:09:01,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:09:01,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:09:01,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:09:01,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:09:01,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:09:01,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:09:01,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:09:01,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:09:01,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:09:01,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:09:01,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:09:01,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:09:01,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:09:01,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:09:01,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:09:01,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:09:01,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:09:01,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:09:01,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:09:01,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:09:01,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:09:01,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:09:01,181 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:09:01,181 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:09:01,182 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:09:01,182 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:09:01,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:09:01,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:09:01,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:09:01,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:09:01,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:09:01,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:09:01,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:09:01,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:09:01,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:09:01,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:09:01,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:09:01,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:09:01,188 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:09:01,201 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:09:01,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:09:01,202 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:09:01,202 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:09:01,202 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:09:01,203 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:09:01,203 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:09:01,203 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:09:01,203 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:09:01,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:09:01,204 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:09:01,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:09:01,204 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:09:01,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:09:01,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:09:01,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:09:01,205 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:09:01,205 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:09:01,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:09:01,206 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:09:01,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:09:01,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:09:01,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:09:01,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:09:01,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:09:01,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:09:01,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:09:01,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:09:01,207 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:09:01,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:09:01,208 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:09:01,208 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:09:01,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:09:01,208 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:09:01,208 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bff509ff7af2b9788fd6216f7196709183d48c973cf9a066c9793f96467b2abf [2021-12-15 11:09:01,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:09:01,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:09:01,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:09:01,372 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:09:01,373 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:09:01,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2021-12-15 11:09:01,411 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e98b1ccc9/76c18986b9bc4841aac73f34a5284881/FLAGbf60a8b8c [2021-12-15 11:09:01,742 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:09:01,743 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2021-12-15 11:09:01,759 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e98b1ccc9/76c18986b9bc4841aac73f34a5284881/FLAGbf60a8b8c [2021-12-15 11:09:02,143 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e98b1ccc9/76c18986b9bc4841aac73f34a5284881 [2021-12-15 11:09:02,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:09:02,146 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:09:02,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:09:02,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:09:02,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:09:02,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:09:02" (1/1) ... [2021-12-15 11:09:02,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a321b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:02, skipping insertion in model container [2021-12-15 11:09:02,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:09:02" (1/1) ... [2021-12-15 11:09:02,158 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:09:02,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:09:02,330 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_spec2_product63.cil.c[2985,2998] [2021-12-15 11:09:02,388 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:09:02,394 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:09:02,404 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_spec2_product63.cil.c[2985,2998] [2021-12-15 11:09:02,447 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:09:02,458 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:09:02,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:02 WrapperNode [2021-12-15 11:09:02,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:09:02,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:09:02,459 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:09:02,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:09:02,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:02" (1/1) ... [2021-12-15 11:09:02,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:02" (1/1) ... [2021-12-15 11:09:02,498 INFO L137 Inliner]: procedures = 59, calls = 163, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 281 [2021-12-15 11:09:02,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:09:02,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:09:02,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:09:02,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:09:02,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:02" (1/1) ... [2021-12-15 11:09:02,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:02" (1/1) ... [2021-12-15 11:09:02,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:02" (1/1) ... [2021-12-15 11:09:02,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:02" (1/1) ... [2021-12-15 11:09:02,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:02" (1/1) ... [2021-12-15 11:09:02,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:02" (1/1) ... [2021-12-15 11:09:02,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:02" (1/1) ... [2021-12-15 11:09:02,517 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:09:02,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:09:02,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:09:02,518 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:09:02,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:02" (1/1) ... [2021-12-15 11:09:02,524 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:09:02,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:09:02,541 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 11:09:02,548 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 11:09:02,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:09:02,571 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-15 11:09:02,571 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-15 11:09:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-15 11:09:02,572 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-15 11:09:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:09:02,572 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:09:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:09:02,572 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:09:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-15 11:09:02,572 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-15 11:09:02,573 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-15 11:09:02,573 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-15 11:09:02,573 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-12-15 11:09:02,573 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-12-15 11:09:02,573 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-12-15 11:09:02,573 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-12-15 11:09:02,573 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-15 11:09:02,573 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-15 11:09:02,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:09:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-15 11:09:02,574 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-15 11:09:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:09:02,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:09:02,623 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:09:02,625 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:09:02,926 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:09:02,931 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:09:02,934 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 11:09:02,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:09:02 BoogieIcfgContainer [2021-12-15 11:09:02,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:09:02,938 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:09:02,938 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:09:02,942 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:09:02,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:09:02" (1/3) ... [2021-12-15 11:09:02,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33419822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:09:02, skipping insertion in model container [2021-12-15 11:09:02,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:02" (2/3) ... [2021-12-15 11:09:02,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33419822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:09:02, skipping insertion in model container [2021-12-15 11:09:02,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:09:02" (3/3) ... [2021-12-15 11:09:02,945 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product63.cil.c [2021-12-15 11:09:02,949 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:09:02,949 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:09:02,986 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:09:02,991 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 11:09:02,991 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:09:03,006 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 83 states have (on average 1.3734939759036144) internal successors, (114), 94 states have internal predecessors, (114), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2021-12-15 11:09:03,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-15 11:09:03,013 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:09:03,014 INFO L514 BasicCegarLoop]: trace histogram [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 11:09:03,014 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:09:03,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:09:03,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1947167556, now seen corresponding path program 1 times [2021-12-15 11:09:03,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:09:03,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299198783] [2021-12-15 11:09:03,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:09:03,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:09:03,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:09:03,073 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 11:09:03,082 INFO L158 Benchmark]: Toolchain (without parser) took 934.06ms. Allocated memory was 96.5MB in the beginning and 127.9MB in the end (delta: 31.5MB). Free memory was 64.6MB in the beginning and 89.9MB in the end (delta: -25.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 11:09:03,082 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 96.5MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:09:03,083 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.13ms. Allocated memory is still 96.5MB. Free memory was 64.4MB in the beginning and 64.0MB in the end (delta: 397.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:09:03,084 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.33ms. Allocated memory is still 96.5MB. Free memory was 64.0MB in the beginning and 61.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:09:03,084 INFO L158 Benchmark]: Boogie Preprocessor took 18.45ms. Allocated memory is still 96.5MB. Free memory was 61.3MB in the beginning and 59.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:09:03,085 INFO L158 Benchmark]: RCFGBuilder took 418.25ms. Allocated memory was 96.5MB in the beginning and 127.9MB in the end (delta: 31.5MB). Free memory was 59.5MB in the beginning and 100.4MB in the end (delta: -40.9MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2021-12-15 11:09:03,089 INFO L158 Benchmark]: TraceAbstraction took 141.63ms. Allocated memory is still 127.9MB. Free memory was 99.6MB in the beginning and 89.9MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:09:03,094 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 96.5MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 312.13ms. Allocated memory is still 96.5MB. Free memory was 64.4MB in the beginning and 64.0MB in the end (delta: 397.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.33ms. Allocated memory is still 96.5MB. Free memory was 64.0MB in the beginning and 61.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.45ms. Allocated memory is still 96.5MB. Free memory was 61.3MB in the beginning and 59.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 418.25ms. Allocated memory was 96.5MB in the beginning and 127.9MB in the end (delta: 31.5MB). Free memory was 59.5MB in the beginning and 100.4MB in the end (delta: -40.9MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * TraceAbstraction took 141.63ms. Allocated memory is still 127.9MB. Free memory was 99.6MB in the beginning and 89.9MB in the end (delta: 9.7MB). 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 11:09:03,124 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/product-lines/minepump_spec2_product63.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 bff509ff7af2b9788fd6216f7196709183d48c973cf9a066c9793f96467b2abf --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:09:04,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:09:04,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:09:04,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:09:04,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:09:04,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:09:04,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:09:04,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:09:04,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:09:04,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:09:04,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:09:04,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:09:04,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:09:04,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:09:04,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:09:04,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:09:04,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:09:04,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:09:04,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:09:04,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:09:04,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:09:04,833 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:09:04,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:09:04,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:09:04,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:09:04,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:09:04,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:09:04,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:09:04,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:09:04,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:09:04,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:09:04,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:09:04,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:09:04,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:09:04,846 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:09:04,846 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:09:04,846 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:09:04,846 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:09:04,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:09:04,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:09:04,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:09:04,849 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 11:09:04,868 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:09:04,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:09:04,870 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:09:04,870 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:09:04,871 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:09:04,871 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:09:04,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:09:04,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:09:04,872 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:09:04,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:09:04,873 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:09:04,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:09:04,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:09:04,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:09:04,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:09:04,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:09:04,873 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 11:09:04,874 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 11:09:04,874 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 11:09:04,874 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:09:04,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:09:04,874 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:09:04,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:09:04,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:09:04,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:09:04,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:09:04,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:09:04,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:09:04,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:09:04,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:09:04,875 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 11:09:04,876 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 11:09:04,876 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:09:04,876 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:09:04,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:09:04,876 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:09:04,876 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 11:09:04,877 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bff509ff7af2b9788fd6216f7196709183d48c973cf9a066c9793f96467b2abf [2021-12-15 11:09:05,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:09:05,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:09:05,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:09:05,169 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:09:05,169 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:09:05,170 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2021-12-15 11:09:05,217 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68e00fd13/0cf19a47d275463dbc260ffab801ae31/FLAGfcfd2f848 [2021-12-15 11:09:05,639 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:09:05,642 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2021-12-15 11:09:05,653 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68e00fd13/0cf19a47d275463dbc260ffab801ae31/FLAGfcfd2f848 [2021-12-15 11:09:05,666 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68e00fd13/0cf19a47d275463dbc260ffab801ae31 [2021-12-15 11:09:05,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:09:05,670 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:09:05,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:09:05,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:09:05,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:09:05,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:09:05" (1/1) ... [2021-12-15 11:09:05,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed1c5fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:05, skipping insertion in model container [2021-12-15 11:09:05,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:09:05" (1/1) ... [2021-12-15 11:09:05,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:09:05,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:09:05,871 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_spec2_product63.cil.c[2985,2998] [2021-12-15 11:09:06,007 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:09:06,015 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 11:09:06,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:09:06,028 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_spec2_product63.cil.c[2985,2998] [2021-12-15 11:09:06,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:09:06,081 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:09:06,090 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_spec2_product63.cil.c[2985,2998] [2021-12-15 11:09:06,114 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:09:06,126 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:09:06,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:06 WrapperNode [2021-12-15 11:09:06,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:09:06,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:09:06,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:09:06,127 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:09:06,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:06" (1/1) ... [2021-12-15 11:09:06,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:06" (1/1) ... [2021-12-15 11:09:06,177 INFO L137 Inliner]: procedures = 61, calls = 163, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 268 [2021-12-15 11:09:06,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:09:06,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:09:06,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:09:06,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:09:06,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:06" (1/1) ... [2021-12-15 11:09:06,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:06" (1/1) ... [2021-12-15 11:09:06,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:06" (1/1) ... [2021-12-15 11:09:06,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:06" (1/1) ... [2021-12-15 11:09:06,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:06" (1/1) ... [2021-12-15 11:09:06,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:06" (1/1) ... [2021-12-15 11:09:06,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:06" (1/1) ... [2021-12-15 11:09:06,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:09:06,208 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:09:06,208 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:09:06,208 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:09:06,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:06" (1/1) ... [2021-12-15 11:09:06,217 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:09:06,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:09:06,249 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 11:09:06,260 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 11:09:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:09:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-15 11:09:06,288 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-15 11:09:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-15 11:09:06,289 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-15 11:09:06,289 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:09:06,289 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:09:06,289 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:09:06,289 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:09:06,289 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-15 11:09:06,289 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-15 11:09:06,289 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-15 11:09:06,290 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-15 11:09:06,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 11:09:06,290 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-12-15 11:09:06,290 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-12-15 11:09:06,290 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-12-15 11:09:06,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-12-15 11:09:06,290 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-15 11:09:06,290 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-15 11:09:06,291 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-15 11:09:06,291 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-15 11:09:06,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:09:06,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:09:06,372 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:09:06,374 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:09:06,638 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:09:06,644 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:09:06,645 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 11:09:06,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:09:06 BoogieIcfgContainer [2021-12-15 11:09:06,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:09:06,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:09:06,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:09:06,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:09:06,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:09:05" (1/3) ... [2021-12-15 11:09:06,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4566c8f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:09:06, skipping insertion in model container [2021-12-15 11:09:06,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:06" (2/3) ... [2021-12-15 11:09:06,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4566c8f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:09:06, skipping insertion in model container [2021-12-15 11:09:06,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:09:06" (3/3) ... [2021-12-15 11:09:06,653 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product63.cil.c [2021-12-15 11:09:06,657 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:09:06,657 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:09:06,696 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:09:06,701 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 11:09:06,702 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:09:06,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 83 states have (on average 1.3734939759036144) internal successors, (114), 94 states have internal predecessors, (114), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2021-12-15 11:09:06,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-15 11:09:06,730 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:09:06,731 INFO L514 BasicCegarLoop]: trace histogram [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 11:09:06,731 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:09:06,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:09:06,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1947167556, now seen corresponding path program 1 times [2021-12-15 11:09:06,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 11:09:06,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [59119177] [2021-12-15 11:09:06,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:09:06,745 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 11:09:06,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 11:09:06,746 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 11:09:06,747 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 11:09:06,784 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 11:09:06,982 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 11:09:06,982 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 11:09:06,985 INFO L158 Benchmark]: Toolchain (without parser) took 1314.62ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 44.6MB in the beginning and 60.4MB in the end (delta: -15.8MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2021-12-15 11:09:06,986 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 65.0MB. Free memory was 47.6MB in the beginning and 47.6MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:09:06,986 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.05ms. Allocated memory is still 65.0MB. Free memory was 44.5MB in the beginning and 32.8MB in the end (delta: 11.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 11:09:06,987 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.24ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 32.8MB in the beginning and 66.7MB in the end (delta: -33.9MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2021-12-15 11:09:06,988 INFO L158 Benchmark]: Boogie Preprocessor took 29.69ms. Allocated memory is still 83.9MB. Free memory was 66.7MB in the beginning and 65.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:09:06,989 INFO L158 Benchmark]: RCFGBuilder took 438.75ms. Allocated memory is still 83.9MB. Free memory was 65.0MB in the beginning and 47.5MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-15 11:09:06,989 INFO L158 Benchmark]: TraceAbstraction took 336.18ms. Allocated memory is still 83.9MB. Free memory was 46.8MB in the beginning and 60.4MB in the end (delta: -13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:09:06,991 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 65.0MB. Free memory was 47.6MB in the beginning and 47.6MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 454.05ms. Allocated memory is still 65.0MB. Free memory was 44.5MB in the beginning and 32.8MB in the end (delta: 11.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.24ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 32.8MB in the beginning and 66.7MB in the end (delta: -33.9MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.69ms. Allocated memory is still 83.9MB. Free memory was 66.7MB in the beginning and 65.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 438.75ms. Allocated memory is still 83.9MB. Free memory was 65.0MB in the beginning and 47.5MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 336.18ms. Allocated memory is still 83.9MB. Free memory was 46.8MB in the beginning and 60.4MB in the end (delta: -13.6MB). 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 11:09:07,017 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