./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product54.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_product54.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 cbcb1e9315abec7fabb6a689d6a1c811fb94154c71589df191460c14d014c3cb --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:09:38,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:09:38,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:09:38,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:09:38,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:09:38,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:09:38,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:09:38,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:09:38,720 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:09:38,724 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:09:38,725 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:09:38,726 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:09:38,726 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:09:38,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:09:38,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:09:38,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:09:38,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:09:38,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:09:38,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:09:38,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:09:38,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:09:38,743 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:09:38,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:09:38,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:09:38,746 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:09:38,748 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:09:38,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:09:38,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:09:38,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:09:38,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:09:38,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:09:38,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:09:38,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:09:38,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:09:38,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:09:38,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:09:38,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:09:38,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:09:38,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:09:38,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:09:38,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:09:38,756 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:09:38,781 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:09:38,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:09:38,784 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:09:38,784 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:09:38,784 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:09:38,784 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:09:38,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:09:38,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:09:38,785 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:09:38,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:09:38,786 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:09:38,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:09:38,786 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:09:38,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:09:38,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:09:38,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:09:38,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:09:38,787 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:09:38,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:09:38,787 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:09:38,787 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:09:38,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:09:38,788 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:09:38,788 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:09:38,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:09:38,788 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:09:38,788 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:09:38,788 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:09:38,788 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:09:38,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:09:38,789 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:09:38,789 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:09:38,789 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:09:38,789 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:09:38,789 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbcb1e9315abec7fabb6a689d6a1c811fb94154c71589df191460c14d014c3cb [2021-12-15 11:09:38,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:09:39,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:09:39,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:09:39,007 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:09:39,007 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:09:39,009 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product54.cil.c [2021-12-15 11:09:39,088 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffc08cf63/7a75f730e9f044dcbfb07da146b0ab38/FLAGea21f37c8 [2021-12-15 11:09:39,638 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:09:39,638 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product54.cil.c [2021-12-15 11:09:39,665 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffc08cf63/7a75f730e9f044dcbfb07da146b0ab38/FLAGea21f37c8 [2021-12-15 11:09:40,012 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffc08cf63/7a75f730e9f044dcbfb07da146b0ab38 [2021-12-15 11:09:40,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:09:40,017 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:09:40,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:09:40,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:09:40,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:09:40,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:09:40" (1/1) ... [2021-12-15 11:09:40,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@585abb08 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 11:09:40,030 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:09:40" (1/1) ... [2021-12-15 11:09:40,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:09:40,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:09:40,251 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_product54.cil.c[4478,4491] [2021-12-15 11:09:40,311 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:09:40,329 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:09:40,365 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_product54.cil.c[4478,4491] [2021-12-15 11:09:40,416 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:09:40,430 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:09:40,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:40 WrapperNode [2021-12-15 11:09:40,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:09:40,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:09:40,432 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:09:40,433 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:09:40,439 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 11:09:40,451 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 11:09:40,486 INFO L137 Inliner]: procedures = 57, calls = 160, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 284 [2021-12-15 11:09:40,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:09:40,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:09:40,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:09:40,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:09:40,495 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 11:09:40,495 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 11:09:40,498 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 11:09:40,498 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 11:09:40,502 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 11:09:40,505 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 11:09:40,506 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 11:09:40,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:09:40,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:09:40,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:09:40,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:09:40,510 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 11:09:40,515 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:09:40,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:09:40,534 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 11:09:40,541 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 11:09:40,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:09:40,576 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-15 11:09:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-15 11:09:40,576 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:09:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:09:40,576 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:09:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:09:40,576 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-15 11:09:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-15 11:09:40,576 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-15 11:09:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-15 11:09:40,576 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-15 11:09:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-15 11:09:40,577 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2021-12-15 11:09:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2021-12-15 11:09:40,577 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-15 11:09:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-15 11:09:40,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:09:40,577 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-15 11:09:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-15 11:09:40,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:09:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:09:40,640 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:09:40,643 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:09:40,892 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:09:40,900 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:09:40,903 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 11:09:40,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:09:40 BoogieIcfgContainer [2021-12-15 11:09:40,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:09:40,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:09:40,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:09:40,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:09:40,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:09:40" (1/3) ... [2021-12-15 11:09:40,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@130ec57a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:09:40, skipping insertion in model container [2021-12-15 11:09:40,910 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 11:09:40,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@130ec57a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:09:40, skipping insertion in model container [2021-12-15 11:09:40,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:09:40" (3/3) ... [2021-12-15 11:09:40,912 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product54.cil.c [2021-12-15 11:09:40,916 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:09:40,916 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:09:40,956 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:09:40,961 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 11:09:40,961 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:09:40,974 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 76 states have (on average 1.381578947368421) internal successors, (105), 86 states have internal predecessors, (105), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2021-12-15 11:09:40,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-15 11:09:40,981 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:09:40,982 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 11:09:40,982 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:09:40,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:09:40,988 INFO L85 PathProgramCache]: Analyzing trace with hash 149329663, now seen corresponding path program 1 times [2021-12-15 11:09:41,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:09:41,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208755606] [2021-12-15 11:09:41,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:09:41,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:09:41,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:09:41,050 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 11:09:41,057 INFO L158 Benchmark]: Toolchain (without parser) took 1039.27ms. Allocated memory is still 132.1MB. Free memory was 95.9MB in the beginning and 67.5MB in the end (delta: 28.4MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2021-12-15 11:09:41,058 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 132.1MB. Free memory was 103.5MB in the beginning and 103.5MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:09:41,059 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.23ms. Allocated memory is still 132.1MB. Free memory was 95.6MB in the beginning and 98.9MB in the end (delta: -3.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 11:09:41,060 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.81ms. Allocated memory is still 132.1MB. Free memory was 98.9MB in the beginning and 96.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:09:41,060 INFO L158 Benchmark]: Boogie Preprocessor took 20.61ms. Allocated memory is still 132.1MB. Free memory was 96.2MB in the beginning and 94.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:09:41,061 INFO L158 Benchmark]: RCFGBuilder took 396.14ms. Allocated memory is still 132.1MB. Free memory was 94.8MB in the beginning and 77.3MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-15 11:09:41,061 INFO L158 Benchmark]: TraceAbstraction took 149.27ms. Allocated memory is still 132.1MB. Free memory was 76.6MB in the beginning and 67.5MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:09:41,070 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 132.1MB. Free memory was 103.5MB in the beginning and 103.5MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 405.23ms. Allocated memory is still 132.1MB. Free memory was 95.6MB in the beginning and 98.9MB in the end (delta: -3.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.81ms. Allocated memory is still 132.1MB. Free memory was 98.9MB in the beginning and 96.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.61ms. Allocated memory is still 132.1MB. Free memory was 96.2MB in the beginning and 94.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 396.14ms. Allocated memory is still 132.1MB. Free memory was 94.8MB in the beginning and 77.3MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 149.27ms. Allocated memory is still 132.1MB. Free memory was 76.6MB in the beginning and 67.5MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 11:09:41,093 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product54.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 cbcb1e9315abec7fabb6a689d6a1c811fb94154c71589df191460c14d014c3cb --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:09:43,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:09:43,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:09:43,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:09:43,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:09:43,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:09:43,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:09:43,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:09:43,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:09:43,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:09:43,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:09:43,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:09:43,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:09:43,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:09:43,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:09:43,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:09:43,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:09:43,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:09:43,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:09:43,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:09:43,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:09:43,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:09:43,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:09:43,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:09:43,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:09:43,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:09:43,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:09:43,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:09:43,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:09:43,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:09:43,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:09:43,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:09:43,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:09:43,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:09:43,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:09:43,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:09:43,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:09:43,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:09:43,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:09:43,203 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:09:43,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:09:43,205 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 11:09:43,242 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:09:43,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:09:43,248 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:09:43,248 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:09:43,249 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:09:43,249 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:09:43,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:09:43,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:09:43,250 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:09:43,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:09:43,251 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:09:43,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:09:43,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:09:43,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:09:43,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:09:43,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:09:43,252 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 11:09:43,252 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 11:09:43,253 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 11:09:43,253 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:09:43,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:09:43,253 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:09:43,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:09:43,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:09:43,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:09:43,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:09:43,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:09:43,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:09:43,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:09:43,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:09:43,255 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 11:09:43,255 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 11:09:43,255 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:09:43,256 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:09:43,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:09:43,256 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:09:43,256 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 11:09:43,256 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbcb1e9315abec7fabb6a689d6a1c811fb94154c71589df191460c14d014c3cb [2021-12-15 11:09:43,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:09:43,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:09:43,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:09:43,594 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:09:43,595 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:09:43,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product54.cil.c [2021-12-15 11:09:43,659 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91c5044a1/d3c95aad29cd41baaa263d86d8f933e8/FLAG190fa4f9e [2021-12-15 11:09:44,338 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:09:44,341 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product54.cil.c [2021-12-15 11:09:44,353 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91c5044a1/d3c95aad29cd41baaa263d86d8f933e8/FLAG190fa4f9e [2021-12-15 11:09:44,591 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91c5044a1/d3c95aad29cd41baaa263d86d8f933e8 [2021-12-15 11:09:44,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:09:44,596 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:09:44,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:09:44,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:09:44,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:09:44,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:09:44" (1/1) ... [2021-12-15 11:09:44,617 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69dabbb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:44, skipping insertion in model container [2021-12-15 11:09:44,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:09:44" (1/1) ... [2021-12-15 11:09:44,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:09:44,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:09:44,941 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_product54.cil.c[4478,4491] [2021-12-15 11:09:44,987 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:09:44,995 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 11:09:45,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:09:45,011 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_product54.cil.c[4478,4491] [2021-12-15 11:09:45,040 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:09:45,044 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:09:45,068 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_product54.cil.c[4478,4491] [2021-12-15 11:09:45,100 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:09:45,112 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:09:45,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:45 WrapperNode [2021-12-15 11:09:45,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:09:45,113 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:09:45,113 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:09:45,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:09:45,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:45" (1/1) ... [2021-12-15 11:09:45,129 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:45" (1/1) ... [2021-12-15 11:09:45,158 INFO L137 Inliner]: procedures = 59, calls = 160, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 270 [2021-12-15 11:09:45,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:09:45,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:09:45,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:09:45,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:09:45,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:45" (1/1) ... [2021-12-15 11:09:45,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:45" (1/1) ... [2021-12-15 11:09:45,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:45" (1/1) ... [2021-12-15 11:09:45,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:45" (1/1) ... [2021-12-15 11:09:45,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:45" (1/1) ... [2021-12-15 11:09:45,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:45" (1/1) ... [2021-12-15 11:09:45,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:45" (1/1) ... [2021-12-15 11:09:45,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:09:45,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:09:45,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:09:45,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:09:45,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:45" (1/1) ... [2021-12-15 11:09:45,216 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:09:45,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:09:45,243 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 11:09:45,263 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 11:09:45,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:09:45,284 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-15 11:09:45,284 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-15 11:09:45,284 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:09:45,284 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:09:45,284 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:09:45,284 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:09:45,284 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-15 11:09:45,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-15 11:09:45,284 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-15 11:09:45,284 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-15 11:09:45,284 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-15 11:09:45,284 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-15 11:09:45,285 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2021-12-15 11:09:45,285 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2021-12-15 11:09:45,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 11:09:45,296 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-15 11:09:45,296 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-15 11:09:45,297 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-15 11:09:45,297 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-15 11:09:45,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:09:45,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:09:45,357 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:09:45,358 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:09:45,595 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:09:45,600 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:09:45,600 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 11:09:45,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:09:45 BoogieIcfgContainer [2021-12-15 11:09:45,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:09:45,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:09:45,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:09:45,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:09:45,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:09:44" (1/3) ... [2021-12-15 11:09:45,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29291cb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:09:45, skipping insertion in model container [2021-12-15 11:09:45,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:09:45" (2/3) ... [2021-12-15 11:09:45,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29291cb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:09:45, skipping insertion in model container [2021-12-15 11:09:45,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:09:45" (3/3) ... [2021-12-15 11:09:45,606 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product54.cil.c [2021-12-15 11:09:45,609 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:09:45,610 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:09:45,637 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:09:45,641 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 11:09:45,642 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:09:45,652 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 76 states have (on average 1.381578947368421) internal successors, (105), 86 states have internal predecessors, (105), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2021-12-15 11:09:45,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-15 11:09:45,659 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:09:45,660 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 11:09:45,661 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:09:45,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:09:45,668 INFO L85 PathProgramCache]: Analyzing trace with hash 149329663, now seen corresponding path program 1 times [2021-12-15 11:09:45,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 11:09:45,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1186151910] [2021-12-15 11:09:45,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:09:45,679 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 11:09:45,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 11:09:45,713 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 11:09:45,714 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 11:09:45,775 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-15 11:09:45,966 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 11:09:45,966 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 11:09:45,970 INFO L158 Benchmark]: Toolchain (without parser) took 1373.71ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 26.2MB in the beginning and 31.7MB in the end (delta: -5.5MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2021-12-15 11:09:45,971 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 50.3MB. Free memory was 31.8MB in the beginning and 31.7MB in the end (delta: 34.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:09:45,971 INFO L158 Benchmark]: CACSL2BoogieTranslator took 505.17ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 26.0MB in the beginning and 28.4MB in the end (delta: -2.4MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2021-12-15 11:09:45,971 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.04ms. Allocated memory is still 60.8MB. Free memory was 28.2MB in the beginning and 42.7MB in the end (delta: -14.5MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2021-12-15 11:09:45,972 INFO L158 Benchmark]: Boogie Preprocessor took 46.27ms. Allocated memory is still 60.8MB. Free memory was 42.7MB in the beginning and 41.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:09:45,972 INFO L158 Benchmark]: RCFGBuilder took 396.20ms. Allocated memory is still 60.8MB. Free memory was 40.9MB in the beginning and 41.1MB in the end (delta: -204.2kB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2021-12-15 11:09:45,973 INFO L158 Benchmark]: TraceAbstraction took 366.22ms. Allocated memory is still 60.8MB. Free memory was 40.5MB in the beginning and 31.7MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:09:45,975 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 50.3MB. Free memory was 31.8MB in the beginning and 31.7MB in the end (delta: 34.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 505.17ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 26.0MB in the beginning and 28.4MB in the end (delta: -2.4MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.04ms. Allocated memory is still 60.8MB. Free memory was 28.2MB in the beginning and 42.7MB in the end (delta: -14.5MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.27ms. Allocated memory is still 60.8MB. Free memory was 42.7MB in the beginning and 41.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 396.20ms. Allocated memory is still 60.8MB. Free memory was 40.9MB in the beginning and 41.1MB in the end (delta: -204.2kB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * TraceAbstraction took 366.22ms. Allocated memory is still 60.8MB. Free memory was 40.5MB in the beginning and 31.7MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 11:09:46,017 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable