./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product02.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_spec3_product02.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 5d126ee18ecb92c3c690e8a34ad047b6b98e7a02d578302f03541b84dbf3857a --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:09:03,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:09:03,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:09:03,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:09:03,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:09:03,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:09:03,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:09:03,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:09:03,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:09:03,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:09:03,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:09:03,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:09:03,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:09:03,665 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:09:03,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:09:03,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:09:03,667 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:09:03,668 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:09:03,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:09:03,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:09:03,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:09:03,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:09:03,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:09:03,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:09:03,685 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:09:03,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:09:03,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:09:03,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:09:03,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:09:03,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:09:03,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:09:03,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:09:03,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:09:03,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:09:03,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:09:03,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:09:03,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:09:03,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:09:03,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:09:03,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:09:03,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:09:03,703 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:09:03,734 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:09:03,734 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:09:03,735 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:09:03,735 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:09:03,736 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:09:03,736 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:09:03,737 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:09:03,737 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:09:03,737 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:09:03,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:09:03,738 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:09:03,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:09:03,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:09:03,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:09:03,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:09:03,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:09:03,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:09:03,739 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:09:03,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:09:03,739 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:09:03,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:09:03,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:09:03,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:09:03,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:09:03,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:09:03,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:09:03,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:09:03,741 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:09:03,741 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:09:03,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:09:03,741 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:09:03,741 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:09:03,742 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:09:03,742 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:09:03,742 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d126ee18ecb92c3c690e8a34ad047b6b98e7a02d578302f03541b84dbf3857a [2021-12-15 11:09:03,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:09:03,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:09:03,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:09:03,969 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:09:03,970 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:09:03,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c [2021-12-15 11:09:04,044 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22d2ef2f1/c92a5574c56f4b75abb8f6aceb9b732d/FLAG55e6d5358 [2021-12-15 11:09:04,382 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:09:04,382 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c [2021-12-15 11:09:04,389 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22d2ef2f1/c92a5574c56f4b75abb8f6aceb9b732d/FLAG55e6d5358 [2021-12-15 11:09:04,803 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22d2ef2f1/c92a5574c56f4b75abb8f6aceb9b732d [2021-12-15 11:09:04,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:09:04,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:09:04,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:09:04,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:09:04,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:09:04,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:09:04" (1/1) ... [2021-12-15 11:09:04,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142287e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:04, skipping insertion in model container [2021-12-15 11:09:04,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:09:04" (1/1) ... [2021-12-15 11:09:04,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:09:04,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:09:04,995 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_spec3_product02.cil.c[2141,2154] [2021-12-15 11:09:05,085 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:09:05,094 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:09:05,106 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_spec3_product02.cil.c[2141,2154] [2021-12-15 11:09:05,153 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:09:05,172 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:09:05,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:05 WrapperNode [2021-12-15 11:09:05,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:09:05,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:09:05,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:09:05,173 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:09:05,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:05" (1/1) ... [2021-12-15 11:09:05,197 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:05" (1/1) ... [2021-12-15 11:09:05,218 INFO L137 Inliner]: procedures = 50, calls = 146, calls flagged for inlining = 18, calls inlined = 15, statements flattened = 195 [2021-12-15 11:09:05,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:09:05,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:09:05,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:09:05,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:09:05,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:05" (1/1) ... [2021-12-15 11:09:05,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:05" (1/1) ... [2021-12-15 11:09:05,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:05" (1/1) ... [2021-12-15 11:09:05,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:05" (1/1) ... [2021-12-15 11:09:05,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:05" (1/1) ... [2021-12-15 11:09:05,236 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:05" (1/1) ... [2021-12-15 11:09:05,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:05" (1/1) ... [2021-12-15 11:09:05,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:09:05,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:09:05,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:09:05,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:09:05,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:05" (1/1) ... [2021-12-15 11:09:05,255 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:09:05,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:09:05,307 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 11:09:05,309 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 11:09:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:09:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:09:05,335 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:09:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-15 11:09:05,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-15 11:09:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:09:05,335 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:09:05,336 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-15 11:09:05,337 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-15 11:09:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:09:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-15 11:09:05,337 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-15 11:09:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:09:05,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:09:05,403 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:09:05,405 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:09:05,578 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:09:05,583 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:09:05,584 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 11:09:05,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:09:05 BoogieIcfgContainer [2021-12-15 11:09:05,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:09:05,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:09:05,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:09:05,592 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:09:05,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:09:04" (1/3) ... [2021-12-15 11:09:05,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f90c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:09:05, skipping insertion in model container [2021-12-15 11:09:05,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:05" (2/3) ... [2021-12-15 11:09:05,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f90c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:09:05, skipping insertion in model container [2021-12-15 11:09:05,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:09:05" (3/3) ... [2021-12-15 11:09:05,595 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product02.cil.c [2021-12-15 11:09:05,600 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:09:05,600 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:09:05,637 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:09:05,643 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 11:09:05,645 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:09:05,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 51 states have (on average 1.392156862745098) internal successors, (71), 55 states have internal predecessors, (71), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-15 11:09:05,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-15 11:09:05,687 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:09:05,688 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 11:09:05,688 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:09:05,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:09:05,698 INFO L85 PathProgramCache]: Analyzing trace with hash -2124368460, now seen corresponding path program 1 times [2021-12-15 11:09:05,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:09:05,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316946493] [2021-12-15 11:09:05,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:09:05,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:09:05,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:09:05,769 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 11:09:05,778 INFO L158 Benchmark]: Toolchain (without parser) took 970.03ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 60.0MB in the beginning and 88.0MB in the end (delta: -28.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2021-12-15 11:09:05,778 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 92.3MB. Free memory was 48.4MB in the beginning and 48.4MB in the end (delta: 39.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:09:05,779 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.26ms. Allocated memory is still 92.3MB. Free memory was 59.7MB in the beginning and 62.1MB in the end (delta: -2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:09:05,780 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.90ms. Allocated memory is still 92.3MB. Free memory was 62.1MB in the beginning and 60.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:09:05,781 INFO L158 Benchmark]: Boogie Preprocessor took 19.53ms. Allocated memory is still 92.3MB. Free memory was 60.0MB in the beginning and 58.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:09:05,781 INFO L158 Benchmark]: RCFGBuilder took 345.63ms. Allocated memory is still 92.3MB. Free memory was 58.4MB in the beginning and 44.4MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 11:09:05,786 INFO L158 Benchmark]: TraceAbstraction took 189.17ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 44.0MB in the beginning and 88.0MB in the end (delta: -44.0MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2021-12-15 11:09:05,791 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 92.3MB. Free memory was 48.4MB in the beginning and 48.4MB in the end (delta: 39.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.26ms. Allocated memory is still 92.3MB. Free memory was 59.7MB in the beginning and 62.1MB in the end (delta: -2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.90ms. Allocated memory is still 92.3MB. Free memory was 62.1MB in the beginning and 60.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.53ms. Allocated memory is still 92.3MB. Free memory was 60.0MB in the beginning and 58.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 345.63ms. Allocated memory is still 92.3MB. Free memory was 58.4MB in the beginning and 44.4MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 189.17ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 44.0MB in the beginning and 88.0MB in the end (delta: -44.0MB). Peak memory consumption was 15.3MB. 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 11:09:05,848 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_spec3_product02.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 5d126ee18ecb92c3c690e8a34ad047b6b98e7a02d578302f03541b84dbf3857a --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:09:07,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:09:07,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:09:07,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:09:07,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:09:07,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:09:07,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:09:07,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:09:07,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:09:07,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:09:07,450 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:09:07,454 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:09:07,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:09:07,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:09:07,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:09:07,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:09:07,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:09:07,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:09:07,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:09:07,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:09:07,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:09:07,464 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:09:07,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:09:07,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:09:07,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:09:07,468 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:09:07,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:09:07,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:09:07,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:09:07,470 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:09:07,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:09:07,470 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:09:07,471 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:09:07,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:09:07,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:09:07,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:09:07,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:09:07,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:09:07,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:09:07,477 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:09:07,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:09:07,479 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 11:09:07,496 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:09:07,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:09:07,496 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:09:07,497 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:09:07,497 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:09:07,497 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:09:07,497 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:09:07,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:09:07,498 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:09:07,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:09:07,498 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:09:07,498 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:09:07,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:09:07,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:09:07,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:09:07,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:09:07,498 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 11:09:07,499 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 11:09:07,499 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 11:09:07,499 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:09:07,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:09:07,499 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:09:07,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:09:07,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:09:07,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:09:07,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:09:07,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:09:07,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:09:07,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:09:07,500 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:09:07,500 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 11:09:07,500 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 11:09:07,500 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:09:07,500 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:09:07,500 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:09:07,500 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:09:07,501 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 11:09:07,501 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d126ee18ecb92c3c690e8a34ad047b6b98e7a02d578302f03541b84dbf3857a [2021-12-15 11:09:07,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:09:07,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:09:07,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:09:07,794 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:09:07,795 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:09:07,796 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c [2021-12-15 11:09:07,842 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cfb1932b/4f91908c9f6a4371bb6c71c556c04328/FLAGc7120610e [2021-12-15 11:09:08,240 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:09:08,241 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c [2021-12-15 11:09:08,252 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cfb1932b/4f91908c9f6a4371bb6c71c556c04328/FLAGc7120610e [2021-12-15 11:09:08,641 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cfb1932b/4f91908c9f6a4371bb6c71c556c04328 [2021-12-15 11:09:08,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:09:08,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:09:08,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:09:08,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:09:08,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:09:08,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:09:08" (1/1) ... [2021-12-15 11:09:08,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1703139e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:08, skipping insertion in model container [2021-12-15 11:09:08,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:09:08" (1/1) ... [2021-12-15 11:09:08,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:09:08,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:09:08,852 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_spec3_product02.cil.c[2141,2154] [2021-12-15 11:09:08,994 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:09:09,006 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 11:09:09,016 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:09:09,020 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_spec3_product02.cil.c[2141,2154] [2021-12-15 11:09:09,055 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:09:09,081 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:09:09,099 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_spec3_product02.cil.c[2141,2154] [2021-12-15 11:09:09,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:09:09,143 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:09:09,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:09 WrapperNode [2021-12-15 11:09:09,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:09:09,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:09:09,145 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:09:09,145 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:09:09,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:09" (1/1) ... [2021-12-15 11:09:09,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:09" (1/1) ... [2021-12-15 11:09:09,188 INFO L137 Inliner]: procedures = 52, calls = 146, calls flagged for inlining = 18, calls inlined = 15, statements flattened = 187 [2021-12-15 11:09:09,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:09:09,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:09:09,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:09:09,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:09:09,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:09" (1/1) ... [2021-12-15 11:09:09,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:09" (1/1) ... [2021-12-15 11:09:09,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:09" (1/1) ... [2021-12-15 11:09:09,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:09" (1/1) ... [2021-12-15 11:09:09,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:09" (1/1) ... [2021-12-15 11:09:09,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:09" (1/1) ... [2021-12-15 11:09:09,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:09" (1/1) ... [2021-12-15 11:09:09,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:09:09,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:09:09,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:09:09,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:09:09,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:09" (1/1) ... [2021-12-15 11:09:09,226 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:09:09,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:09:09,257 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 11:09:09,262 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 11:09:09,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:09:09,289 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:09:09,289 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:09:09,289 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-15 11:09:09,289 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-15 11:09:09,289 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:09:09,289 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:09:09,289 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-15 11:09:09,290 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-15 11:09:09,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 11:09:09,290 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-15 11:09:09,290 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-15 11:09:09,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:09:09,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:09:09,368 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:09:09,370 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:09:09,579 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:09:09,583 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:09:09,583 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 11:09:09,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:09:09 BoogieIcfgContainer [2021-12-15 11:09:09,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:09:09,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:09:09,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:09:09,587 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:09:09,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:09:08" (1/3) ... [2021-12-15 11:09:09,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434ae96d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:09:09, skipping insertion in model container [2021-12-15 11:09:09,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:09" (2/3) ... [2021-12-15 11:09:09,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434ae96d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:09:09, skipping insertion in model container [2021-12-15 11:09:09,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:09:09" (3/3) ... [2021-12-15 11:09:09,589 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product02.cil.c [2021-12-15 11:09:09,593 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:09:09,593 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:09:09,623 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:09:09,627 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 11:09:09,627 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:09:09,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 51 states have (on average 1.392156862745098) internal successors, (71), 55 states have internal predecessors, (71), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-15 11:09:09,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-15 11:09:09,658 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:09:09,659 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 11:09:09,659 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:09:09,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:09:09,665 INFO L85 PathProgramCache]: Analyzing trace with hash -2124368460, now seen corresponding path program 1 times [2021-12-15 11:09:09,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 11:09:09,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [238564968] [2021-12-15 11:09:09,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:09:09,677 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 11:09:09,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 11:09:09,691 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 11:09:09,703 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 11:09:09,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 11:09:09,935 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 11:09:09,935 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 11:09:09,939 INFO L158 Benchmark]: Toolchain (without parser) took 1293.31ms. Allocated memory was 48.2MB in the beginning and 60.8MB in the end (delta: 12.6MB). Free memory was 23.3MB in the beginning and 39.0MB in the end (delta: -15.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:09:09,939 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 48.2MB. Free memory was 30.8MB in the beginning and 30.7MB in the end (delta: 78.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:09:09,940 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.21ms. Allocated memory was 48.2MB in the beginning and 60.8MB in the end (delta: 12.6MB). Free memory was 23.1MB in the beginning and 30.4MB in the end (delta: -7.3MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2021-12-15 11:09:09,940 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.07ms. Allocated memory is still 60.8MB. Free memory was 30.4MB in the beginning and 44.2MB in the end (delta: -13.8MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2021-12-15 11:09:09,940 INFO L158 Benchmark]: Boogie Preprocessor took 28.95ms. Allocated memory is still 60.8MB. Free memory was 43.9MB in the beginning and 42.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:09:09,941 INFO L158 Benchmark]: RCFGBuilder took 365.44ms. Allocated memory is still 60.8MB. Free memory was 42.4MB in the beginning and 28.2MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 11:09:09,941 INFO L158 Benchmark]: TraceAbstraction took 351.60ms. Allocated memory is still 60.8MB. Free memory was 27.8MB in the beginning and 39.0MB in the end (delta: -11.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:09:09,944 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 48.2MB. Free memory was 30.8MB in the beginning and 30.7MB in the end (delta: 78.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 497.21ms. Allocated memory was 48.2MB in the beginning and 60.8MB in the end (delta: 12.6MB). Free memory was 23.1MB in the beginning and 30.4MB in the end (delta: -7.3MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.07ms. Allocated memory is still 60.8MB. Free memory was 30.4MB in the beginning and 44.2MB in the end (delta: -13.8MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.95ms. Allocated memory is still 60.8MB. Free memory was 43.9MB in the beginning and 42.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 365.44ms. Allocated memory is still 60.8MB. Free memory was 42.4MB in the beginning and 28.2MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 351.60ms. Allocated memory is still 60.8MB. Free memory was 27.8MB in the beginning and 39.0MB in the end (delta: -11.1MB). 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 11:09:09,973 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