./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product58.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 db9cad3d4bb6f197e1ca94da7e6c4fb3038f74aed96fd168a277cfa6f57caad2 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:11:07,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:11:07,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:11:07,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:11:07,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:11:07,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:11:07,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:11:07,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:11:07,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:11:07,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:11:07,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:11:07,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:11:07,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:11:07,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:11:07,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:11:07,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:11:07,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:11:07,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:11:07,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:11:07,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:11:07,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:11:07,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:11:07,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:11:07,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:11:07,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:11:07,752 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:11:07,752 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:11:07,753 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:11:07,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:11:07,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:11:07,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:11:07,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:11:07,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:11:07,756 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:11:07,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:11:07,757 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:11:07,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:11:07,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:11:07,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:11:07,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:11:07,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:11:07,765 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:11:07,790 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:11:07,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:11:07,794 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:11:07,795 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:11:07,796 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:11:07,796 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:11:07,797 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:11:07,797 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:11:07,797 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:11:07,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:11:07,798 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:11:07,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:11:07,798 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:11:07,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:11:07,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:11:07,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:11:07,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:11:07,799 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:11:07,799 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:11:07,799 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:11:07,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:11:07,800 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:11:07,800 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:11:07,800 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:11:07,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:11:07,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:11:07,801 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:11:07,801 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:11:07,801 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:11:07,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:11:07,802 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:11:07,802 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:11:07,802 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:11:07,802 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:11:07,802 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db9cad3d4bb6f197e1ca94da7e6c4fb3038f74aed96fd168a277cfa6f57caad2 [2021-12-15 11:11:08,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:11:08,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:11:08,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:11:08,056 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:11:08,056 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:11:08,057 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c [2021-12-15 11:11:08,114 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95069e822/b8d3cd1f5b6148f5835da67c66a2e902/FLAGd7eb3e100 [2021-12-15 11:11:08,575 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:11:08,577 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c [2021-12-15 11:11:08,589 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95069e822/b8d3cd1f5b6148f5835da67c66a2e902/FLAGd7eb3e100 [2021-12-15 11:11:08,607 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95069e822/b8d3cd1f5b6148f5835da67c66a2e902 [2021-12-15 11:11:08,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:11:08,611 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:11:08,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:11:08,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:11:08,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:11:08,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:11:08" (1/1) ... [2021-12-15 11:11:08,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d6d33cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:08, skipping insertion in model container [2021-12-15 11:11:08,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:11:08" (1/1) ... [2021-12-15 11:11:08,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:11:08,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:11:08,876 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c[14935,14948] [2021-12-15 11:11:08,890 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:11:08,910 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:11:08,948 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c[14935,14948] [2021-12-15 11:11:08,958 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:11:08,969 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:11:08,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:08 WrapperNode [2021-12-15 11:11:08,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:11:08,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:11:08,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:11:08,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:11:08,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:08" (1/1) ... [2021-12-15 11:11:08,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:08" (1/1) ... [2021-12-15 11:11:09,002 INFO L137 Inliner]: procedures = 59, calls = 160, calls flagged for inlining = 28, calls inlined = 25, statements flattened = 288 [2021-12-15 11:11:09,003 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:11:09,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:11:09,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:11:09,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:11:09,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:08" (1/1) ... [2021-12-15 11:11:09,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:08" (1/1) ... [2021-12-15 11:11:09,023 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:08" (1/1) ... [2021-12-15 11:11:09,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:08" (1/1) ... [2021-12-15 11:11:09,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:08" (1/1) ... [2021-12-15 11:11:09,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:08" (1/1) ... [2021-12-15 11:11:09,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:08" (1/1) ... [2021-12-15 11:11:09,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:11:09,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:11:09,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:11:09,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:11:09,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:08" (1/1) ... [2021-12-15 11:11:09,055 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:11:09,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:11:09,090 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 11:11:09,098 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 11:11:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:11:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-15 11:11:09,121 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-15 11:11:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:11:09,121 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:11:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:11:09,121 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:11:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-15 11:11:09,121 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-15 11:11:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-15 11:11:09,121 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-15 11:11:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-12-15 11:11:09,121 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-12-15 11:11:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:11:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-15 11:11:09,121 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-15 11:11:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:11:09,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:11:09,170 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:11:09,171 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:11:09,441 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:11:09,448 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:11:09,448 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 11:11:09,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:11:09 BoogieIcfgContainer [2021-12-15 11:11:09,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:11:09,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:11:09,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:11:09,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:11:09,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:11:08" (1/3) ... [2021-12-15 11:11:09,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc20442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:11:09, skipping insertion in model container [2021-12-15 11:11:09,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:08" (2/3) ... [2021-12-15 11:11:09,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc20442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:11:09, skipping insertion in model container [2021-12-15 11:11:09,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:11:09" (3/3) ... [2021-12-15 11:11:09,456 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product58.cil.c [2021-12-15 11:11:09,460 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:11:09,460 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:11:09,506 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:11:09,514 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 11:11:09,514 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:11:09,544 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 76 states have (on average 1.368421052631579) internal successors, (104), 84 states have internal predecessors, (104), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2021-12-15 11:11:09,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-15 11:11:09,552 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:11:09,553 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:11:09,554 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:11:09,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:11:09,560 INFO L85 PathProgramCache]: Analyzing trace with hash -716350399, now seen corresponding path program 1 times [2021-12-15 11:11:09,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:11:09,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104925568] [2021-12-15 11:11:09,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:11:09,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:11:09,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:11:09,620 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 11:11:09,627 INFO L158 Benchmark]: Toolchain (without parser) took 1014.86ms. Allocated memory was 92.3MB in the beginning and 136.3MB in the end (delta: 44.0MB). Free memory was 62.5MB in the beginning and 99.6MB in the end (delta: -37.1MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2021-12-15 11:11:09,628 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 92.3MB. Free memory was 52.0MB in the beginning and 52.0MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:11:09,629 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.53ms. Allocated memory is still 92.3MB. Free memory was 62.3MB in the beginning and 60.6MB in the end (delta: 1.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 11:11:09,629 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.91ms. Allocated memory is still 92.3MB. Free memory was 60.6MB in the beginning and 58.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:11:09,630 INFO L158 Benchmark]: Boogie Preprocessor took 32.78ms. Allocated memory is still 92.3MB. Free memory was 58.1MB in the beginning and 56.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:11:09,632 INFO L158 Benchmark]: RCFGBuilder took 413.31ms. Allocated memory was 92.3MB in the beginning and 136.3MB in the end (delta: 44.0MB). Free memory was 56.4MB in the beginning and 110.2MB in the end (delta: -53.8MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2021-12-15 11:11:09,635 INFO L158 Benchmark]: TraceAbstraction took 173.95ms. Allocated memory is still 136.3MB. Free memory was 109.6MB in the beginning and 99.6MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 11:11:09,640 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 92.3MB. Free memory was 52.0MB in the beginning and 52.0MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.53ms. Allocated memory is still 92.3MB. Free memory was 62.3MB in the beginning and 60.6MB in the end (delta: 1.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.91ms. Allocated memory is still 92.3MB. Free memory was 60.6MB in the beginning and 58.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.78ms. Allocated memory is still 92.3MB. Free memory was 58.1MB in the beginning and 56.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 413.31ms. Allocated memory was 92.3MB in the beginning and 136.3MB in the end (delta: 44.0MB). Free memory was 56.4MB in the beginning and 110.2MB in the end (delta: -53.8MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * TraceAbstraction took 173.95ms. Allocated memory is still 136.3MB. Free memory was 109.6MB in the beginning and 99.6MB in the end (delta: 10.0MB). 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 11:11:09,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product58.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 db9cad3d4bb6f197e1ca94da7e6c4fb3038f74aed96fd168a277cfa6f57caad2 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:11:11,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:11:11,489 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:11:11,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:11:11,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:11:11,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:11:11,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:11:11,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:11:11,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:11:11,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:11:11,551 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:11:11,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:11:11,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:11:11,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:11:11,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:11:11,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:11:11,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:11:11,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:11:11,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:11:11,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:11:11,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:11:11,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:11:11,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:11:11,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:11:11,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:11:11,563 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:11:11,563 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:11:11,564 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:11:11,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:11:11,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:11:11,565 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:11:11,566 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:11:11,566 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:11:11,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:11:11,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:11:11,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:11:11,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:11:11,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:11:11,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:11:11,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:11:11,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:11:11,575 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 11:11:11,605 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:11:11,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:11:11,605 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:11:11,606 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:11:11,606 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:11:11,606 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:11:11,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:11:11,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:11:11,607 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:11:11,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:11:11,607 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:11:11,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:11:11,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:11:11,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:11:11,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:11:11,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:11:11,608 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 11:11:11,608 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 11:11:11,608 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 11:11:11,608 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:11:11,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:11:11,608 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:11:11,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:11:11,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:11:11,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:11:11,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:11:11,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:11:11,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:11:11,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:11:11,609 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:11:11,610 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 11:11:11,610 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 11:11:11,610 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:11:11,610 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:11:11,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:11:11,610 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:11:11,610 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 11:11:11,610 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db9cad3d4bb6f197e1ca94da7e6c4fb3038f74aed96fd168a277cfa6f57caad2 [2021-12-15 11:11:11,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:11:11,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:11:11,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:11:11,894 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:11:11,894 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:11:11,895 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c [2021-12-15 11:11:11,955 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf87478e4/3316d5ce934c453e9810a3cc46931dab/FLAGda380eda7 [2021-12-15 11:11:12,361 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:11:12,362 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c [2021-12-15 11:11:12,372 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf87478e4/3316d5ce934c453e9810a3cc46931dab/FLAGda380eda7 [2021-12-15 11:11:12,385 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf87478e4/3316d5ce934c453e9810a3cc46931dab [2021-12-15 11:11:12,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:11:12,388 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:11:12,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:11:12,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:11:12,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:11:12,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:11:12" (1/1) ... [2021-12-15 11:11:12,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21097953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:12, skipping insertion in model container [2021-12-15 11:11:12,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:11:12" (1/1) ... [2021-12-15 11:11:12,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:11:12,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:11:12,697 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c[14935,14948] [2021-12-15 11:11:12,729 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:11:12,740 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 11:11:12,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:11:12,801 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c[14935,14948] [2021-12-15 11:11:12,816 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:11:12,820 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:11:12,856 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c[14935,14948] [2021-12-15 11:11:12,862 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:11:12,875 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:11:12,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:12 WrapperNode [2021-12-15 11:11:12,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:11:12,877 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:11:12,877 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:11:12,877 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:11:12,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:12" (1/1) ... [2021-12-15 11:11:12,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:12" (1/1) ... [2021-12-15 11:11:12,953 INFO L137 Inliner]: procedures = 61, calls = 160, calls flagged for inlining = 28, calls inlined = 25, statements flattened = 274 [2021-12-15 11:11:12,954 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:11:12,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:11:12,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:11:12,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:11:12,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:12" (1/1) ... [2021-12-15 11:11:12,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:12" (1/1) ... [2021-12-15 11:11:12,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:12" (1/1) ... [2021-12-15 11:11:12,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:12" (1/1) ... [2021-12-15 11:11:12,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:12" (1/1) ... [2021-12-15 11:11:13,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:12" (1/1) ... [2021-12-15 11:11:13,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:12" (1/1) ... [2021-12-15 11:11:13,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:11:13,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:11:13,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:11:13,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:11:13,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:12" (1/1) ... [2021-12-15 11:11:13,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:11:13,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:11:13,040 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 11:11:13,078 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 11:11:13,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:11:13,102 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-15 11:11:13,102 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-15 11:11:13,102 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:11:13,102 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:11:13,102 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:11:13,102 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:11:13,102 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-15 11:11:13,102 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-15 11:11:13,102 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-15 11:11:13,102 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-15 11:11:13,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 11:11:13,102 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-12-15 11:11:13,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-12-15 11:11:13,103 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-15 11:11:13,103 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-15 11:11:13,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:11:13,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:11:13,152 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:11:13,153 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:11:13,320 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:11:13,325 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:11:13,325 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 11:11:13,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:11:13 BoogieIcfgContainer [2021-12-15 11:11:13,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:11:13,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:11:13,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:11:13,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:11:13,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:11:12" (1/3) ... [2021-12-15 11:11:13,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@321793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:11:13, skipping insertion in model container [2021-12-15 11:11:13,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:12" (2/3) ... [2021-12-15 11:11:13,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@321793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:11:13, skipping insertion in model container [2021-12-15 11:11:13,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:11:13" (3/3) ... [2021-12-15 11:11:13,331 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product58.cil.c [2021-12-15 11:11:13,334 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:11:13,334 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:11:13,366 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:11:13,371 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 11:11:13,371 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:11:13,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 76 states have (on average 1.368421052631579) internal successors, (104), 84 states have internal predecessors, (104), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2021-12-15 11:11:13,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-15 11:11:13,388 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:11:13,388 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:11:13,388 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:11:13,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:11:13,394 INFO L85 PathProgramCache]: Analyzing trace with hash -716350399, now seen corresponding path program 1 times [2021-12-15 11:11:13,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 11:11:13,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385569504] [2021-12-15 11:11:13,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:11:13,403 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 11:11:13,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 11:11:13,405 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 11:11:13,406 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 11:11:13,454 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 11:11:13,655 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 11:11:13,656 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 11:11:13,659 INFO L158 Benchmark]: Toolchain (without parser) took 1270.20ms. Allocated memory was 65.0MB in the beginning and 98.6MB in the end (delta: 33.6MB). Free memory was 44.9MB in the beginning and 52.5MB in the end (delta: -7.6MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2021-12-15 11:11:13,659 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 65.0MB. Free memory was 47.5MB in the beginning and 47.5MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:11:13,660 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.09ms. Allocated memory is still 65.0MB. Free memory was 44.8MB in the beginning and 32.3MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 11:11:13,661 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.30ms. Allocated memory was 65.0MB in the beginning and 98.6MB in the end (delta: 33.6MB). Free memory was 32.1MB in the beginning and 80.7MB in the end (delta: -48.6MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2021-12-15 11:11:13,661 INFO L158 Benchmark]: Boogie Preprocessor took 48.48ms. Allocated memory is still 98.6MB. Free memory was 80.7MB in the beginning and 79.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:11:13,666 INFO L158 Benchmark]: RCFGBuilder took 322.46ms. Allocated memory is still 98.6MB. Free memory was 79.1MB in the beginning and 62.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-15 11:11:13,666 INFO L158 Benchmark]: TraceAbstraction took 330.56ms. Allocated memory is still 98.6MB. Free memory was 61.9MB in the beginning and 52.5MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 11:11:13,670 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 65.0MB. Free memory was 47.5MB in the beginning and 47.5MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 487.09ms. Allocated memory is still 65.0MB. Free memory was 44.8MB in the beginning and 32.3MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.30ms. Allocated memory was 65.0MB in the beginning and 98.6MB in the end (delta: 33.6MB). Free memory was 32.1MB in the beginning and 80.7MB in the end (delta: -48.6MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.48ms. Allocated memory is still 98.6MB. Free memory was 80.7MB in the beginning and 79.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 322.46ms. Allocated memory is still 98.6MB. Free memory was 79.1MB in the beginning and 62.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 330.56ms. Allocated memory is still 98.6MB. Free memory was 61.9MB in the beginning and 52.5MB in the end (delta: 9.3MB). 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 11:11:13,701 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