./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product36.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_spec1_product36.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 dae9a870dcbd894d53325794bcd1e36e0da0523a0c6f117be41bebebda51818a --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:08:01,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:08:01,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:08:01,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:08:01,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:08:01,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:08:01,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:08:01,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:08:01,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:08:01,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:08:01,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:08:01,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:08:01,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:08:01,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:08:01,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:08:01,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:08:01,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:08:01,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:08:01,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:08:01,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:08:01,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:08:01,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:08:01,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:08:01,131 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:08:01,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:08:01,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:08:01,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:08:01,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:08:01,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:08:01,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:08:01,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:08:01,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:08:01,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:08:01,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:08:01,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:08:01,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:08:01,138 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:08:01,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:08:01,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:08:01,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:08:01,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:08:01,140 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:08:01,154 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:08:01,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:08:01,155 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:08:01,155 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:08:01,155 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:08:01,156 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:08:01,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:08:01,156 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:08:01,156 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:08:01,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:08:01,157 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:08:01,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:08:01,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:08:01,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:08:01,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:08:01,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:08:01,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:08:01,158 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:08:01,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:08:01,158 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:08:01,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:08:01,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:08:01,159 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:08:01,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:08:01,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:08:01,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:08:01,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:08:01,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:08:01,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:08:01,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:08:01,160 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:08:01,160 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:08:01,161 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:08:01,161 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:08:01,161 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dae9a870dcbd894d53325794bcd1e36e0da0523a0c6f117be41bebebda51818a [2021-12-15 11:08:01,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:08:01,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:08:01,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:08:01,553 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:08:01,571 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:08:01,573 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2021-12-15 11:08:01,664 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fadf3c69/7363a2fb9669491f91494195309695e8/FLAGac2047d31 [2021-12-15 11:08:02,085 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:08:02,086 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2021-12-15 11:08:02,096 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fadf3c69/7363a2fb9669491f91494195309695e8/FLAGac2047d31 [2021-12-15 11:08:02,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fadf3c69/7363a2fb9669491f91494195309695e8 [2021-12-15 11:08:02,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:08:02,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:08:02,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:08:02,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:08:02,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:08:02,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:08:02" (1/1) ... [2021-12-15 11:08:02,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a0aadd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:02, skipping insertion in model container [2021-12-15 11:08:02,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:08:02" (1/1) ... [2021-12-15 11:08:02,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:08:02,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:08:02,611 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_spec1_product36.cil.c[1605,1618] [2021-12-15 11:08:02,708 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:08:02,714 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:08:02,727 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_spec1_product36.cil.c[1605,1618] [2021-12-15 11:08:02,771 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:08:02,783 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:08:02,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:02 WrapperNode [2021-12-15 11:08:02,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:08:02,784 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:08:02,784 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:08:02,784 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:08:02,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:02" (1/1) ... [2021-12-15 11:08:02,798 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:02" (1/1) ... [2021-12-15 11:08:02,814 INFO L137 Inliner]: procedures = 54, calls = 152, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 227 [2021-12-15 11:08:02,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:08:02,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:08:02,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:08:02,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:08:02,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:02" (1/1) ... [2021-12-15 11:08:02,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:02" (1/1) ... [2021-12-15 11:08:02,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:02" (1/1) ... [2021-12-15 11:08:02,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:02" (1/1) ... [2021-12-15 11:08:02,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:02" (1/1) ... [2021-12-15 11:08:02,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:02" (1/1) ... [2021-12-15 11:08:02,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:02" (1/1) ... [2021-12-15 11:08:02,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:08:02,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:08:02,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:08:02,836 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:08:02,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:02" (1/1) ... [2021-12-15 11:08:02,847 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:08:02,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:08:02,867 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 11:08:02,878 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 11:08:02,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:08:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-15 11:08:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-15 11:08:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:08:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:08:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-15 11:08:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-15 11:08:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:08:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:08:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-15 11:08:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-15 11:08:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:08:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-15 11:08:02,919 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-15 11:08:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:08:02,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:08:03,033 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:08:03,034 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:08:03,336 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:08:03,341 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:08:03,341 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 11:08:03,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:08:03 BoogieIcfgContainer [2021-12-15 11:08:03,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:08:03,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:08:03,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:08:03,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:08:03,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:08:02" (1/3) ... [2021-12-15 11:08:03,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f57e583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:08:03, skipping insertion in model container [2021-12-15 11:08:03,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:02" (2/3) ... [2021-12-15 11:08:03,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f57e583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:08:03, skipping insertion in model container [2021-12-15 11:08:03,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:08:03" (3/3) ... [2021-12-15 11:08:03,352 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product36.cil.c [2021-12-15 11:08:03,355 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:08:03,356 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:08:03,419 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:08:03,440 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 11:08:03,440 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:08:03,480 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 68 states have internal predecessors, (86), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-15 11:08:03,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-15 11:08:03,486 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:08:03,486 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] [2021-12-15 11:08:03,487 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:08:03,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:08:03,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1839487273, now seen corresponding path program 1 times [2021-12-15 11:08:03,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:08:03,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788599612] [2021-12-15 11:08:03,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:08:03,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:08:03,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:08:03,643 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 11:08:03,650 INFO L158 Benchmark]: Toolchain (without parser) took 1208.37ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 51.8MB in the beginning and 86.5MB in the end (delta: -34.7MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2021-12-15 11:08:03,650 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 92.3MB. Free memory is still 68.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:08:03,651 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.27ms. Allocated memory is still 92.3MB. Free memory was 51.6MB in the beginning and 60.6MB in the end (delta: -9.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 11:08:03,651 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.14ms. Allocated memory is still 92.3MB. Free memory was 60.6MB in the beginning and 58.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:08:03,652 INFO L158 Benchmark]: Boogie Preprocessor took 20.56ms. Allocated memory is still 92.3MB. Free memory was 58.3MB in the beginning and 56.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:08:03,653 INFO L158 Benchmark]: RCFGBuilder took 506.05ms. Allocated memory is still 92.3MB. Free memory was 56.7MB in the beginning and 41.6MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 11:08:03,656 INFO L158 Benchmark]: TraceAbstraction took 304.79ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 41.0MB in the beginning and 86.5MB in the end (delta: -45.5MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2021-12-15 11:08:03,660 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 92.3MB. Free memory is still 68.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.27ms. Allocated memory is still 92.3MB. Free memory was 51.6MB in the beginning and 60.6MB in the end (delta: -9.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.14ms. Allocated memory is still 92.3MB. Free memory was 60.6MB in the beginning and 58.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.56ms. Allocated memory is still 92.3MB. Free memory was 58.3MB in the beginning and 56.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 506.05ms. Allocated memory is still 92.3MB. Free memory was 56.7MB in the beginning and 41.6MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 304.79ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 41.0MB in the beginning and 86.5MB in the end (delta: -45.5MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 11:08:03,721 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_spec1_product36.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 dae9a870dcbd894d53325794bcd1e36e0da0523a0c6f117be41bebebda51818a --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:08:06,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:08:06,684 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:08:06,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:08:06,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:08:06,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:08:06,743 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:08:06,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:08:06,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:08:06,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:08:06,770 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:08:06,771 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:08:06,771 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:08:06,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:08:06,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:08:06,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:08:06,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:08:06,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:08:06,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:08:06,796 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:08:06,797 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:08:06,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:08:06,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:08:06,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:08:06,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:08:06,822 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:08:06,823 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:08:06,824 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:08:06,826 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:08:06,827 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:08:06,827 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:08:06,828 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:08:06,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:08:06,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:08:06,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:08:06,832 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:08:06,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:08:06,833 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:08:06,833 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:08:06,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:08:06,834 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:08:06,837 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 11:08:06,881 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:08:06,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:08:06,882 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:08:06,883 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:08:06,883 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:08:06,883 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:08:06,884 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:08:06,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:08:06,885 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:08:06,885 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:08:06,886 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:08:06,886 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:08:06,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:08:06,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:08:06,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:08:06,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:08:06,887 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 11:08:06,887 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 11:08:06,887 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 11:08:06,887 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:08:06,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:08:06,888 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:08:06,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:08:06,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:08:06,888 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:08:06,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:08:06,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:08:06,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:08:06,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:08:06,889 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:08:06,889 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 11:08:06,891 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 11:08:06,891 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:08:06,891 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:08:06,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:08:06,892 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:08:06,892 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 11:08:06,892 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dae9a870dcbd894d53325794bcd1e36e0da0523a0c6f117be41bebebda51818a [2021-12-15 11:08:07,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:08:07,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:08:07,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:08:07,460 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:08:07,461 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:08:07,462 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2021-12-15 11:08:07,550 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92bd6a816/ca897a5dd4df442c86d9042a8fbd6de7/FLAG3e99ce4f8 [2021-12-15 11:08:08,302 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:08:08,304 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2021-12-15 11:08:08,317 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92bd6a816/ca897a5dd4df442c86d9042a8fbd6de7/FLAG3e99ce4f8 [2021-12-15 11:08:08,343 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92bd6a816/ca897a5dd4df442c86d9042a8fbd6de7 [2021-12-15 11:08:08,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:08:08,347 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:08:08,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:08:08,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:08:08,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:08:08,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:08:08" (1/1) ... [2021-12-15 11:08:08,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cbd4621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:08, skipping insertion in model container [2021-12-15 11:08:08,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:08:08" (1/1) ... [2021-12-15 11:08:08,366 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:08:08,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:08:08,682 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_spec1_product36.cil.c[1605,1618] [2021-12-15 11:08:08,821 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:08:08,839 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 11:08:08,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:08:08,854 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_spec1_product36.cil.c[1605,1618] [2021-12-15 11:08:08,906 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:08:08,923 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:08:08,936 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_spec1_product36.cil.c[1605,1618] [2021-12-15 11:08:08,993 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:08:09,005 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:08:09,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:09 WrapperNode [2021-12-15 11:08:09,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:08:09,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:08:09,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:08:09,021 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:08:09,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:09" (1/1) ... [2021-12-15 11:08:09,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:09" (1/1) ... [2021-12-15 11:08:09,091 INFO L137 Inliner]: procedures = 56, calls = 152, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 218 [2021-12-15 11:08:09,110 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:08:09,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:08:09,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:08:09,111 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:08:09,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:09" (1/1) ... [2021-12-15 11:08:09,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:09" (1/1) ... [2021-12-15 11:08:09,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:09" (1/1) ... [2021-12-15 11:08:09,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:09" (1/1) ... [2021-12-15 11:08:09,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:09" (1/1) ... [2021-12-15 11:08:09,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:09" (1/1) ... [2021-12-15 11:08:09,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:09" (1/1) ... [2021-12-15 11:08:09,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:08:09,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:08:09,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:08:09,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:08:09,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:09" (1/1) ... [2021-12-15 11:08:09,195 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:08:09,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:08:09,251 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 11:08:09,272 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 11:08:09,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:08:09,314 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-15 11:08:09,315 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-15 11:08:09,315 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:08:09,315 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:08:09,316 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-15 11:08:09,316 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-15 11:08:09,316 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:08:09,316 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:08:09,316 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-15 11:08:09,316 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-15 11:08:09,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 11:08:09,316 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-15 11:08:09,317 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-15 11:08:09,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:08:09,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:08:09,413 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:08:09,426 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:08:09,844 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:08:09,848 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:08:09,849 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 11:08:09,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:08:09 BoogieIcfgContainer [2021-12-15 11:08:09,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:08:09,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:08:09,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:08:09,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:08:09,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:08:08" (1/3) ... [2021-12-15 11:08:09,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56405461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:08:09, skipping insertion in model container [2021-12-15 11:08:09,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:09" (2/3) ... [2021-12-15 11:08:09,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56405461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:08:09, skipping insertion in model container [2021-12-15 11:08:09,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:08:09" (3/3) ... [2021-12-15 11:08:09,878 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product36.cil.c [2021-12-15 11:08:09,882 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:08:09,882 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:08:09,962 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:08:09,986 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 11:08:09,986 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:08:10,020 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 68 states have internal predecessors, (86), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-15 11:08:10,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-15 11:08:10,025 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:08:10,026 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] [2021-12-15 11:08:10,026 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:08:10,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:08:10,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1839487273, now seen corresponding path program 1 times [2021-12-15 11:08:10,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 11:08:10,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1926051822] [2021-12-15 11:08:10,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:08:10,050 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 11:08:10,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 11:08:10,071 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 11:08:10,072 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 11:08:10,198 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 11:08:10,379 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 11:08:10,380 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 11:08:10,383 INFO L158 Benchmark]: Toolchain (without parser) took 2035.93ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 38.4MB in the beginning and 41.9MB in the end (delta: -3.6MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2021-12-15 11:08:10,384 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 44.0MB. Free memory was 26.2MB in the beginning and 26.1MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:08:10,384 INFO L158 Benchmark]: CACSL2BoogieTranslator took 664.12ms. Allocated memory is still 54.5MB. Free memory was 38.2MB in the beginning and 34.0MB in the end (delta: 4.2MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2021-12-15 11:08:10,384 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.81ms. Allocated memory is still 54.5MB. Free memory was 34.0MB in the beginning and 31.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:08:10,385 INFO L158 Benchmark]: Boogie Preprocessor took 73.85ms. Allocated memory is still 54.5MB. Free memory was 31.7MB in the beginning and 30.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:08:10,385 INFO L158 Benchmark]: RCFGBuilder took 672.01ms. Allocated memory is still 54.5MB. Free memory was 30.1MB in the beginning and 26.6MB in the end (delta: 3.4MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2021-12-15 11:08:10,385 INFO L158 Benchmark]: TraceAbstraction took 523.49ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 26.2MB in the beginning and 41.9MB in the end (delta: -15.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:08:10,391 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 44.0MB. Free memory was 26.2MB in the beginning and 26.1MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 664.12ms. Allocated memory is still 54.5MB. Free memory was 38.2MB in the beginning and 34.0MB in the end (delta: 4.2MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.81ms. Allocated memory is still 54.5MB. Free memory was 34.0MB in the beginning and 31.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.85ms. Allocated memory is still 54.5MB. Free memory was 31.7MB in the beginning and 30.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 672.01ms. Allocated memory is still 54.5MB. Free memory was 30.1MB in the beginning and 26.6MB in the end (delta: 3.4MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * TraceAbstraction took 523.49ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 26.2MB in the beginning and 41.9MB in the end (delta: -15.7MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 11:08:10,431 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