./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product48.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_product48.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 baaf7bc14db82105b5843c6fd2fd917eb756a5c6e86ff33e83c3b3f08cca23ae --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:09:35,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:09:35,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:09:35,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:09:35,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:09:35,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:09:35,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:09:35,558 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:09:35,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:09:35,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:09:35,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:09:35,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:09:35,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:09:35,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:09:35,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:09:35,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:09:35,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:09:35,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:09:35,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:09:35,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:09:35,568 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:09:35,569 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:09:35,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:09:35,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:09:35,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:09:35,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:09:35,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:09:35,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:09:35,573 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:09:35,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:09:35,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:09:35,575 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:09:35,575 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:09:35,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:09:35,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:09:35,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:09:35,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:09:35,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:09:35,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:09:35,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:09:35,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:09:35,580 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:09:35,594 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:09:35,594 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:09:35,594 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:09:35,594 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:09:35,595 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:09:35,595 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:09:35,596 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:09:35,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:09:35,596 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:09:35,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:09:35,596 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:09:35,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:09:35,597 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:09:35,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:09:35,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:09:35,597 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:09:35,597 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:09:35,597 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:09:35,597 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:09:35,598 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:09:35,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:09:35,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:09:35,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:09:35,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:09:35,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:09:35,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:09:35,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:09:35,599 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:09:35,599 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:09:35,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:09:35,599 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:09:35,600 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:09:35,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:09:35,600 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:09:35,600 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> baaf7bc14db82105b5843c6fd2fd917eb756a5c6e86ff33e83c3b3f08cca23ae [2021-12-15 11:09:35,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:09:35,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:09:35,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:09:35,821 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:09:35,822 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:09:35,823 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2021-12-15 11:09:35,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d51fc9e2/37852a42b5bd4c829b9a1db43cba95b2/FLAG2a9187c46 [2021-12-15 11:09:36,267 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:09:36,268 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2021-12-15 11:09:36,277 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d51fc9e2/37852a42b5bd4c829b9a1db43cba95b2/FLAG2a9187c46 [2021-12-15 11:09:36,297 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d51fc9e2/37852a42b5bd4c829b9a1db43cba95b2 [2021-12-15 11:09:36,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:09:36,305 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:09:36,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:09:36,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:09:36,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:09:36,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:09:36" (1/1) ... [2021-12-15 11:09:36,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f27666c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:36, skipping insertion in model container [2021-12-15 11:09:36,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:09:36" (1/1) ... [2021-12-15 11:09:36,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:09:36,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:09:36,500 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_product48.cil.c[1605,1618] [2021-12-15 11:09:36,623 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:09:36,633 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:09:36,645 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_product48.cil.c[1605,1618] [2021-12-15 11:09:36,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:09:36,720 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:09:36,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:36 WrapperNode [2021-12-15 11:09:36,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:09:36,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:09:36,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:09:36,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:09:36,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:36" (1/1) ... [2021-12-15 11:09:36,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:36" (1/1) ... [2021-12-15 11:09:36,784 INFO L137 Inliner]: procedures = 56, calls = 159, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 256 [2021-12-15 11:09:36,785 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:09:36,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:09:36,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:09:36,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:09:36,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:36" (1/1) ... [2021-12-15 11:09:36,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:36" (1/1) ... [2021-12-15 11:09:36,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:36" (1/1) ... [2021-12-15 11:09:36,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:36" (1/1) ... [2021-12-15 11:09:36,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:36" (1/1) ... [2021-12-15 11:09:36,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:36" (1/1) ... [2021-12-15 11:09:36,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:36" (1/1) ... [2021-12-15 11:09:36,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:09:36,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:09:36,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:09:36,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:09:36,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:36" (1/1) ... [2021-12-15 11:09:36,832 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:09:36,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:09:36,865 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 11:09:36,887 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 11:09:36,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:09:36,902 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-15 11:09:36,902 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-15 11:09:36,902 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:09:36,903 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:09:36,903 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:09:36,903 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:09:36,903 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-15 11:09:36,903 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-15 11:09:36,903 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-15 11:09:36,903 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-15 11:09:36,903 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-12-15 11:09:36,903 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-12-15 11:09:36,904 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-12-15 11:09:36,904 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-12-15 11:09:36,904 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-15 11:09:36,904 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-15 11:09:36,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:09:36,905 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-15 11:09:36,905 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-15 11:09:36,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:09:36,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:09:36,981 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:09:36,982 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:09:37,218 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:09:37,223 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:09:37,224 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 11:09:37,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:09:37 BoogieIcfgContainer [2021-12-15 11:09:37,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:09:37,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:09:37,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:09:37,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:09:37,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:09:36" (1/3) ... [2021-12-15 11:09:37,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a269d5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:09:37, skipping insertion in model container [2021-12-15 11:09:37,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:36" (2/3) ... [2021-12-15 11:09:37,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a269d5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:09:37, skipping insertion in model container [2021-12-15 11:09:37,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:09:37" (3/3) ... [2021-12-15 11:09:37,231 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product48.cil.c [2021-12-15 11:09:37,235 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:09:37,235 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:09:37,279 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:09:37,284 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 11:09:37,285 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:09:37,300 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 76 states have (on average 1.368421052631579) internal successors, (104), 85 states have internal predecessors, (104), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2021-12-15 11:09:37,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-15 11:09:37,306 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:09:37,307 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 11:09:37,307 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:09:37,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:09:37,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1105602066, now seen corresponding path program 1 times [2021-12-15 11:09:37,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:09:37,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172509528] [2021-12-15 11:09:37,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:09:37,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:09:37,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:09:37,357 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 11:09:37,362 INFO L158 Benchmark]: Toolchain (without parser) took 1056.73ms. Allocated memory is still 136.3MB. Free memory was 107.8MB in the beginning and 71.8MB in the end (delta: 35.9MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. [2021-12-15 11:09:37,363 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 136.3MB. Free memory was 94.3MB in the beginning and 94.2MB in the end (delta: 69.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:09:37,363 INFO L158 Benchmark]: CACSL2BoogieTranslator took 415.20ms. Allocated memory is still 136.3MB. Free memory was 107.6MB in the beginning and 102.7MB in the end (delta: 4.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 11:09:37,364 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.99ms. Allocated memory is still 136.3MB. Free memory was 102.7MB in the beginning and 100.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:09:37,364 INFO L158 Benchmark]: Boogie Preprocessor took 38.86ms. Allocated memory is still 136.3MB. Free memory was 100.6MB in the beginning and 99.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:09:37,364 INFO L158 Benchmark]: RCFGBuilder took 400.07ms. Allocated memory is still 136.3MB. Free memory was 99.1MB in the beginning and 81.8MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-15 11:09:37,365 INFO L158 Benchmark]: TraceAbstraction took 135.04ms. Allocated memory is still 136.3MB. Free memory was 81.4MB in the beginning and 71.8MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 11:09:37,367 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 136.3MB. Free memory was 94.3MB in the beginning and 94.2MB in the end (delta: 69.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 415.20ms. Allocated memory is still 136.3MB. Free memory was 107.6MB in the beginning and 102.7MB in the end (delta: 4.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.99ms. Allocated memory is still 136.3MB. Free memory was 102.7MB in the beginning and 100.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.86ms. Allocated memory is still 136.3MB. Free memory was 100.6MB in the beginning and 99.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 400.07ms. Allocated memory is still 136.3MB. Free memory was 99.1MB in the beginning and 81.8MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 135.04ms. Allocated memory is still 136.3MB. Free memory was 81.4MB in the beginning and 71.8MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 11:09:37,391 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_product48.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 baaf7bc14db82105b5843c6fd2fd917eb756a5c6e86ff33e83c3b3f08cca23ae --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:09:38,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:09:38,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:09:39,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:09:39,018 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:09:39,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:09:39,022 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:09:39,026 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:09:39,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:09:39,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:09:39,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:09:39,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:09:39,033 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:09:39,035 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:09:39,036 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:09:39,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:09:39,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:09:39,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:09:39,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:09:39,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:09:39,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:09:39,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:09:39,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:09:39,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:09:39,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:09:39,065 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:09:39,065 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:09:39,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:09:39,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:09:39,068 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:09:39,068 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:09:39,069 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:09:39,070 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:09:39,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:09:39,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:09:39,072 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:09:39,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:09:39,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:09:39,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:09:39,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:09:39,074 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:09:39,075 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 11:09:39,104 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:09:39,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:09:39,105 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:09:39,105 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:09:39,106 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:09:39,106 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:09:39,107 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:09:39,107 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:09:39,107 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:09:39,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:09:39,108 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:09:39,108 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:09:39,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:09:39,108 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:09:39,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:09:39,109 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:09:39,109 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 11:09:39,109 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 11:09:39,109 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 11:09:39,109 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:09:39,110 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:09:39,110 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:09:39,110 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:09:39,110 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:09:39,110 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:09:39,110 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:09:39,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:09:39,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:09:39,111 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:09:39,111 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:09:39,111 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 11:09:39,111 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 11:09:39,112 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:09:39,112 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:09:39,112 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:09:39,112 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:09:39,112 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 11:09:39,113 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> baaf7bc14db82105b5843c6fd2fd917eb756a5c6e86ff33e83c3b3f08cca23ae [2021-12-15 11:09:39,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:09:39,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:09:39,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:09:39,372 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:09:39,372 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:09:39,373 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2021-12-15 11:09:39,417 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/effabe365/e771fcff7fdc468787a0e070ba54434d/FLAGe90aecd4f [2021-12-15 11:09:39,812 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:09:39,813 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2021-12-15 11:09:39,825 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/effabe365/e771fcff7fdc468787a0e070ba54434d/FLAGe90aecd4f [2021-12-15 11:09:40,218 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/effabe365/e771fcff7fdc468787a0e070ba54434d [2021-12-15 11:09:40,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:09:40,221 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:09:40,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:09:40,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:09:40,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:09:40,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:09:40" (1/1) ... [2021-12-15 11:09:40,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ef9594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:40, skipping insertion in model container [2021-12-15 11:09:40,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:09:40" (1/1) ... [2021-12-15 11:09:40,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:09:40,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:09:40,349 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_product48.cil.c[1605,1618] [2021-12-15 11:09:40,470 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:09:40,487 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 11:09:40,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:09:40,509 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_product48.cil.c[1605,1618] [2021-12-15 11:09:40,560 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:09:40,563 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:09:40,575 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_product48.cil.c[1605,1618] [2021-12-15 11:09:40,629 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:09:40,643 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:09:40,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:40 WrapperNode [2021-12-15 11:09:40,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:09:40,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:09:40,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:09:40,645 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:09:40,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:40" (1/1) ... [2021-12-15 11:09:40,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:40" (1/1) ... [2021-12-15 11:09:40,695 INFO L137 Inliner]: procedures = 58, calls = 159, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 244 [2021-12-15 11:09:40,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:09:40,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:09:40,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:09:40,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:09:40,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:40" (1/1) ... [2021-12-15 11:09:40,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:40" (1/1) ... [2021-12-15 11:09:40,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:40" (1/1) ... [2021-12-15 11:09:40,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:40" (1/1) ... [2021-12-15 11:09:40,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:40" (1/1) ... [2021-12-15 11:09:40,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:40" (1/1) ... [2021-12-15 11:09:40,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:40" (1/1) ... [2021-12-15 11:09:40,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:09:40,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:09:40,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:09:40,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:09:40,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:40" (1/1) ... [2021-12-15 11:09:40,753 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:09:40,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:09:40,783 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 11:09:40,807 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 11:09:40,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:09:40,829 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-15 11:09:40,829 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-15 11:09:40,829 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:09:40,830 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:09:40,830 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:09:40,830 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:09:40,830 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-15 11:09:40,830 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-15 11:09:40,830 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-15 11:09:40,830 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-15 11:09:40,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 11:09:40,831 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-12-15 11:09:40,831 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-12-15 11:09:40,831 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-12-15 11:09:40,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-12-15 11:09:40,831 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-15 11:09:40,852 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-15 11:09:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-15 11:09:40,852 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-15 11:09:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:09:40,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:09:40,926 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:09:40,928 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:09:41,151 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:09:41,162 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:09:41,162 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 11:09:41,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:09:41 BoogieIcfgContainer [2021-12-15 11:09:41,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:09:41,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:09:41,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:09:41,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:09:41,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:09:40" (1/3) ... [2021-12-15 11:09:41,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7888aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:09:41, skipping insertion in model container [2021-12-15 11:09:41,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:40" (2/3) ... [2021-12-15 11:09:41,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7888aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:09:41, skipping insertion in model container [2021-12-15 11:09:41,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:09:41" (3/3) ... [2021-12-15 11:09:41,172 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product48.cil.c [2021-12-15 11:09:41,175 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:09:41,176 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:09:41,209 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:09:41,213 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 11:09:41,214 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:09:41,226 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 76 states have (on average 1.368421052631579) internal successors, (104), 85 states have internal predecessors, (104), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2021-12-15 11:09:41,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-15 11:09:41,231 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:09:41,231 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 11:09:41,232 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:09:41,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:09:41,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1105602066, now seen corresponding path program 1 times [2021-12-15 11:09:41,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 11:09:41,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490913171] [2021-12-15 11:09:41,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:09:41,244 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 11:09:41,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 11:09:41,245 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 11:09:41,246 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 11:09:41,293 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 11:09:41,484 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 11:09:41,484 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 11:09:41,488 INFO L158 Benchmark]: Toolchain (without parser) took 1266.18ms. Allocated memory was 67.1MB in the beginning and 94.4MB in the end (delta: 27.3MB). Free memory was 46.6MB in the beginning and 73.8MB in the end (delta: -27.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-12-15 11:09:41,488 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 67.1MB. Free memory was 47.8MB in the beginning and 47.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:09:41,489 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.13ms. Allocated memory is still 67.1MB. Free memory was 46.5MB in the beginning and 35.4MB in the end (delta: 11.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 11:09:41,489 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.95ms. Allocated memory is still 67.1MB. Free memory was 35.4MB in the beginning and 32.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:09:41,490 INFO L158 Benchmark]: Boogie Preprocessor took 48.53ms. Allocated memory is still 67.1MB. Free memory was 32.8MB in the beginning and 31.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:09:41,490 INFO L158 Benchmark]: RCFGBuilder took 417.46ms. Allocated memory is still 67.1MB. Free memory was 31.2MB in the beginning and 36.2MB in the end (delta: -4.9MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2021-12-15 11:09:41,491 INFO L158 Benchmark]: TraceAbstraction took 322.01ms. Allocated memory was 67.1MB in the beginning and 94.4MB in the end (delta: 27.3MB). Free memory was 35.5MB in the beginning and 73.8MB in the end (delta: -38.2MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2021-12-15 11:09:41,493 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 67.1MB. Free memory was 47.8MB in the beginning and 47.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.13ms. Allocated memory is still 67.1MB. Free memory was 46.5MB in the beginning and 35.4MB in the end (delta: 11.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.95ms. Allocated memory is still 67.1MB. Free memory was 35.4MB in the beginning and 32.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.53ms. Allocated memory is still 67.1MB. Free memory was 32.8MB in the beginning and 31.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 417.46ms. Allocated memory is still 67.1MB. Free memory was 31.2MB in the beginning and 36.2MB in the end (delta: -4.9MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * TraceAbstraction took 322.01ms. Allocated memory was 67.1MB in the beginning and 94.4MB in the end (delta: 27.3MB). Free memory was 35.5MB in the beginning and 73.8MB in the end (delta: -38.2MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 11:09:41,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable