./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product14.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 9f40985114caeb048340f647c2568d018899bc3d78f19b72dfc5765d669ba2a6 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 06:19:08,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 06:19:08,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 06:19:08,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 06:19:08,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 06:19:08,219 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 06:19:08,221 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 06:19:08,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 06:19:08,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 06:19:08,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 06:19:08,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 06:19:08,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 06:19:08,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 06:19:08,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 06:19:08,234 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 06:19:08,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 06:19:08,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 06:19:08,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 06:19:08,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 06:19:08,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 06:19:08,260 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 06:19:08,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 06:19:08,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 06:19:08,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 06:19:08,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 06:19:08,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 06:19:08,269 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 06:19:08,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 06:19:08,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 06:19:08,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 06:19:08,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 06:19:08,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 06:19:08,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 06:19:08,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 06:19:08,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 06:19:08,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 06:19:08,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 06:19:08,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 06:19:08,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 06:19:08,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 06:19:08,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 06:19:08,278 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 06:19:08,279 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 06:19:08,319 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 06:19:08,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 06:19:08,320 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 06:19:08,320 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 06:19:08,321 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 06:19:08,321 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 06:19:08,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 06:19:08,322 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 06:19:08,322 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 06:19:08,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 06:19:08,323 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 06:19:08,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 06:19:08,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 06:19:08,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 06:19:08,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 06:19:08,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 06:19:08,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 06:19:08,323 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 06:19:08,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 06:19:08,324 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 06:19:08,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 06:19:08,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 06:19:08,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 06:19:08,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 06:19:08,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:19:08,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 06:19:08,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 06:19:08,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 06:19:08,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 06:19:08,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 06:19:08,325 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 06:19:08,326 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 06:19:08,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 06:19:08,326 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f40985114caeb048340f647c2568d018899bc3d78f19b72dfc5765d669ba2a6 [2022-07-12 06:19:08,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 06:19:08,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 06:19:08,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 06:19:08,745 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 06:19:08,746 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 06:19:08,747 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product14.cil.c [2022-07-12 06:19:08,828 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eae54990d/e7ad6ff39ab340f88a11f4592aca3e7f/FLAG86be5cce5 [2022-07-12 06:19:09,533 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 06:19:09,533 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product14.cil.c [2022-07-12 06:19:09,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eae54990d/e7ad6ff39ab340f88a11f4592aca3e7f/FLAG86be5cce5 [2022-07-12 06:19:09,592 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eae54990d/e7ad6ff39ab340f88a11f4592aca3e7f [2022-07-12 06:19:09,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 06:19:09,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 06:19:09,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 06:19:09,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 06:19:09,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 06:19:09,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:19:09" (1/1) ... [2022-07-12 06:19:09,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1183ff1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:09, skipping insertion in model container [2022-07-12 06:19:09,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:19:09" (1/1) ... [2022-07-12 06:19:09,618 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 06:19:09,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 06:19:09,921 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product14.cil.c[1605,1618] [2022-07-12 06:19:10,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:19:10,131 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 06:19:10,158 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product14.cil.c[1605,1618] [2022-07-12 06:19:10,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:19:10,280 INFO L208 MainTranslator]: Completed translation [2022-07-12 06:19:10,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:10 WrapperNode [2022-07-12 06:19:10,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 06:19:10,282 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 06:19:10,282 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 06:19:10,282 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 06:19:10,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:10" (1/1) ... [2022-07-12 06:19:10,332 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:10" (1/1) ... [2022-07-12 06:19:10,381 INFO L137 Inliner]: procedures = 52, calls = 152, calls flagged for inlining = 20, calls inlined = 16, statements flattened = 207 [2022-07-12 06:19:10,382 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 06:19:10,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 06:19:10,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 06:19:10,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 06:19:10,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:10" (1/1) ... [2022-07-12 06:19:10,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:10" (1/1) ... [2022-07-12 06:19:10,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:10" (1/1) ... [2022-07-12 06:19:10,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:10" (1/1) ... [2022-07-12 06:19:10,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:10" (1/1) ... [2022-07-12 06:19:10,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:10" (1/1) ... [2022-07-12 06:19:10,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:10" (1/1) ... [2022-07-12 06:19:10,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 06:19:10,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 06:19:10,459 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 06:19:10,459 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 06:19:10,460 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:10" (1/1) ... [2022-07-12 06:19:10,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:19:10,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:19:10,521 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) [2022-07-12 06:19:10,565 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 [2022-07-12 06:19:10,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 06:19:10,594 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-12 06:19:10,594 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-12 06:19:10,594 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-12 06:19:10,594 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-12 06:19:10,595 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-12 06:19:10,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-12 06:19:10,595 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-12 06:19:10,595 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-12 06:19:10,595 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-07-12 06:19:10,595 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-07-12 06:19:10,595 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-07-12 06:19:10,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-07-12 06:19:10,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 06:19:10,596 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-12 06:19:10,596 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-12 06:19:10,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 06:19:10,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 06:19:10,704 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 06:19:10,705 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 06:19:11,101 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 06:19:11,108 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 06:19:11,110 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-12 06:19:11,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:19:11 BoogieIcfgContainer [2022-07-12 06:19:11,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 06:19:11,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 06:19:11,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 06:19:11,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 06:19:11,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 06:19:09" (1/3) ... [2022-07-12 06:19:11,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19dcfb87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:19:11, skipping insertion in model container [2022-07-12 06:19:11,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:10" (2/3) ... [2022-07-12 06:19:11,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19dcfb87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:19:11, skipping insertion in model container [2022-07-12 06:19:11,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:19:11" (3/3) ... [2022-07-12 06:19:11,119 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product14.cil.c [2022-07-12 06:19:11,148 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 06:19:11,148 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 06:19:11,215 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 06:19:11,238 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@20b446bc, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1e100c4f [2022-07-12 06:19:11,239 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 06:19:11,253 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 65 states have internal predecessors, (81), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2022-07-12 06:19:11,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-12 06:19:11,273 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:19:11,274 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:19:11,275 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:19:11,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:19:11,281 INFO L85 PathProgramCache]: Analyzing trace with hash -258694758, now seen corresponding path program 1 times [2022-07-12 06:19:11,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:19:11,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035408590] [2022-07-12 06:19:11,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:19:11,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:19:11,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:11,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 06:19:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:11,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:19:11,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:19:11,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035408590] [2022-07-12 06:19:11,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035408590] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:19:11,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:19:11,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 06:19:11,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625057012] [2022-07-12 06:19:11,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:19:11,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 06:19:11,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:19:11,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 06:19:11,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 06:19:11,728 INFO L87 Difference]: Start difference. First operand has 79 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 65 states have internal predecessors, (81), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:19:11,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:19:11,784 INFO L93 Difference]: Finished difference Result 150 states and 201 transitions. [2022-07-12 06:19:11,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 06:19:11,786 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-07-12 06:19:11,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:19:11,807 INFO L225 Difference]: With dead ends: 150 [2022-07-12 06:19:11,808 INFO L226 Difference]: Without dead ends: 70 [2022-07-12 06:19:11,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 06:19:11,814 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:19:11,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:19:11,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-07-12 06:19:11,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-07-12 06:19:11,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 57 states have internal predecessors, (67), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-07-12 06:19:11,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 88 transitions. [2022-07-12 06:19:11,906 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 88 transitions. Word has length 25 [2022-07-12 06:19:11,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:19:11,906 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 88 transitions. [2022-07-12 06:19:11,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:19:11,907 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 88 transitions. [2022-07-12 06:19:11,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-12 06:19:11,910 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:19:11,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:19:11,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 06:19:11,911 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:19:11,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:19:11,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1537183331, now seen corresponding path program 1 times [2022-07-12 06:19:11,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:19:11,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360182638] [2022-07-12 06:19:11,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:19:11,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:19:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:12,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 06:19:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:12,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:19:12,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:19:12,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360182638] [2022-07-12 06:19:12,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360182638] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:19:12,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:19:12,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 06:19:12,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595578595] [2022-07-12 06:19:12,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:19:12,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 06:19:12,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:19:12,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 06:19:12,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 06:19:12,062 INFO L87 Difference]: Start difference. First operand 70 states and 88 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:19:12,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:19:12,103 INFO L93 Difference]: Finished difference Result 105 states and 131 transitions. [2022-07-12 06:19:12,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 06:19:12,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-07-12 06:19:12,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:19:12,112 INFO L225 Difference]: With dead ends: 105 [2022-07-12 06:19:12,113 INFO L226 Difference]: Without dead ends: 61 [2022-07-12 06:19:12,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 06:19:12,115 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 13 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:19:12,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 133 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:19:12,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-07-12 06:19:12,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-07-12 06:19:12,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 51 states have internal predecessors, (60), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-12 06:19:12,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 76 transitions. [2022-07-12 06:19:12,124 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 76 transitions. Word has length 26 [2022-07-12 06:19:12,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:19:12,125 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 76 transitions. [2022-07-12 06:19:12,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:19:12,125 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 76 transitions. [2022-07-12 06:19:12,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-12 06:19:12,126 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:19:12,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:19:12,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 06:19:12,127 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:19:12,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:19:12,128 INFO L85 PathProgramCache]: Analyzing trace with hash 2103069017, now seen corresponding path program 1 times [2022-07-12 06:19:12,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:19:12,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926245976] [2022-07-12 06:19:12,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:19:12,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:19:12,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:12,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:19:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:12,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:19:12,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:19:12,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926245976] [2022-07-12 06:19:12,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926245976] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:19:12,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:19:12,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:19:12,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272110200] [2022-07-12 06:19:12,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:19:12,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:19:12,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:19:12,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:19:12,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:19:12,285 INFO L87 Difference]: Start difference. First operand 61 states and 76 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:19:12,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:19:12,427 INFO L93 Difference]: Finished difference Result 115 states and 146 transitions. [2022-07-12 06:19:12,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 06:19:12,428 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-07-12 06:19:12,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:19:12,428 INFO L225 Difference]: With dead ends: 115 [2022-07-12 06:19:12,429 INFO L226 Difference]: Without dead ends: 61 [2022-07-12 06:19:12,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 06:19:12,432 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 144 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:19:12,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 147 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 06:19:12,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-07-12 06:19:12,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-07-12 06:19:12,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 46 states have (on average 1.2826086956521738) internal successors, (59), 51 states have internal predecessors, (59), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-12 06:19:12,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 75 transitions. [2022-07-12 06:19:12,443 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 75 transitions. Word has length 31 [2022-07-12 06:19:12,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:19:12,443 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 75 transitions. [2022-07-12 06:19:12,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:19:12,444 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 75 transitions. [2022-07-12 06:19:12,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-12 06:19:12,447 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:19:12,447 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:19:12,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 06:19:12,464 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:19:12,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:19:12,464 INFO L85 PathProgramCache]: Analyzing trace with hash -472294854, now seen corresponding path program 1 times [2022-07-12 06:19:12,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:19:12,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217383462] [2022-07-12 06:19:12,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:19:12,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:19:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:12,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:19:12,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:12,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:19:12,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:12,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:19:12,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:19:12,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217383462] [2022-07-12 06:19:12,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217383462] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:19:12,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:19:12,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 06:19:12,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689874015] [2022-07-12 06:19:12,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:19:12,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 06:19:12,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:19:12,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 06:19:12,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 06:19:12,578 INFO L87 Difference]: Start difference. First operand 61 states and 75 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 06:19:12,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:19:12,662 INFO L93 Difference]: Finished difference Result 165 states and 211 transitions. [2022-07-12 06:19:12,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 06:19:12,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2022-07-12 06:19:12,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:19:12,679 INFO L225 Difference]: With dead ends: 165 [2022-07-12 06:19:12,679 INFO L226 Difference]: Without dead ends: 111 [2022-07-12 06:19:12,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:19:12,687 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 45 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:19:12,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 303 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:19:12,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-07-12 06:19:12,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 108. [2022-07-12 06:19:12,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 80 states have (on average 1.275) internal successors, (102), 88 states have internal predecessors, (102), 16 states have call successors, (16), 12 states have call predecessors, (16), 11 states have return successors, (17), 13 states have call predecessors, (17), 16 states have call successors, (17) [2022-07-12 06:19:12,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 135 transitions. [2022-07-12 06:19:12,717 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 135 transitions. Word has length 36 [2022-07-12 06:19:12,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:19:12,717 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 135 transitions. [2022-07-12 06:19:12,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 06:19:12,718 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 135 transitions. [2022-07-12 06:19:12,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-12 06:19:12,722 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:19:12,722 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:19:12,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 06:19:12,723 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:19:12,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:19:12,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1249014784, now seen corresponding path program 1 times [2022-07-12 06:19:12,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:19:12,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977382152] [2022-07-12 06:19:12,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:19:12,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:19:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 06:19:12,767 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 06:19:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 06:19:12,857 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 06:19:12,858 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 06:19:12,858 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 06:19:12,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 06:19:12,864 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-12 06:19:12,868 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 06:19:12,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 06:19:12 BoogieIcfgContainer [2022-07-12 06:19:12,945 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 06:19:12,946 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 06:19:12,946 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 06:19:12,947 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 06:19:12,959 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:19:11" (3/4) ... [2022-07-12 06:19:12,961 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-12 06:19:13,032 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 06:19:13,035 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 06:19:13,036 INFO L158 Benchmark]: Toolchain (without parser) took 3440.83ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 50.9MB in the beginning and 69.8MB in the end (delta: -18.9MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2022-07-12 06:19:13,036 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 92.3MB. Free memory is still 68.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 06:19:13,037 INFO L158 Benchmark]: CACSL2BoogieTranslator took 671.37ms. Allocated memory is still 92.3MB. Free memory was 50.7MB in the beginning and 59.3MB in the end (delta: -8.5MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-07-12 06:19:13,037 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.29ms. Allocated memory is still 92.3MB. Free memory was 59.3MB in the beginning and 57.0MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-12 06:19:13,037 INFO L158 Benchmark]: Boogie Preprocessor took 62.88ms. Allocated memory is still 92.3MB. Free memory was 57.0MB in the beginning and 55.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 06:19:13,037 INFO L158 Benchmark]: RCFGBuilder took 665.88ms. Allocated memory is still 92.3MB. Free memory was 55.4MB in the beginning and 39.9MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-12 06:19:13,037 INFO L158 Benchmark]: TraceAbstraction took 1832.23ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 39.4MB in the beginning and 74.0MB in the end (delta: -34.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 06:19:13,038 INFO L158 Benchmark]: Witness Printer took 89.17ms. Allocated memory is still 113.2MB. Free memory was 74.0MB in the beginning and 69.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-12 06:19:13,039 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 92.3MB. Free memory is still 68.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 671.37ms. Allocated memory is still 92.3MB. Free memory was 50.7MB in the beginning and 59.3MB in the end (delta: -8.5MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.29ms. Allocated memory is still 92.3MB. Free memory was 59.3MB in the beginning and 57.0MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.88ms. Allocated memory is still 92.3MB. Free memory was 57.0MB in the beginning and 55.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 665.88ms. Allocated memory is still 92.3MB. Free memory was 55.4MB in the beginning and 39.9MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1832.23ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 39.4MB in the beginning and 74.0MB in the end (delta: -34.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 89.17ms. Allocated memory is still 113.2MB. Free memory was 74.0MB in the beginning and 69.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L141] int pumpRunning = 0; [L142] int systemActive = 1; [L468] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L735] int cleanupTimeShifts = 4; [L831] int waterLevel = 1; [L832] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L808] int retValue_acc ; [L809] int tmp ; [L813] FCALL select_helpers() [L814] FCALL select_features() [L815] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L815] RET, EXPR valid_product() [L815] tmp = valid_product() [L817] COND TRUE \read(tmp) [L819] FCALL setup() [L820] CALL runTest() [L802] CALL test() [L669] int splverifierCounter ; [L670] int tmp ; [L671] int tmp___0 ; [L672] int tmp___1 ; [L673] int tmp___2 ; [L676] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L678] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L680] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L686] tmp = __VERIFIER_nondet_int() [L688] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L690] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L849] COND TRUE waterLevel < 2 [L850] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L690] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L696] tmp___0 = __VERIFIER_nondet_int() [L698] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L706] tmp___2 = __VERIFIER_nondet_int() [L708] COND FALSE !(\read(tmp___2)) [L714] tmp___1 = __VERIFIER_nondet_int() [L716] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L723] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L148] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L155] COND TRUE \read(systemActive) [L157] CALL processEnvironment() [L177] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L180] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L195] FCALL processEnvironment__wrappee__methaneQuery() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L157] RET processEnvironment() [L163] CALL __utac_acc__Specification3_spec__1() [L101] int tmp ; [L102] int tmp___0 ; [L103] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L107] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L870] int retValue_acc ; [L873] retValue_acc = methaneLevelCritical [L874] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L107] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L107] tmp = isMethaneLevelCritical() [L109] COND FALSE !(\read(tmp)) [L113] CALL, EXPR getWaterLevel() [L902] int retValue_acc ; [L905] retValue_acc = waterLevel [L906] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L113] RET, EXPR getWaterLevel() [L113] tmp___0 = getWaterLevel() [L115] COND TRUE tmp___0 == 2 [L117] CALL, EXPR isPumpRunning() [L246] int retValue_acc ; [L249] retValue_acc = pumpRunning [L250] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L117] RET, EXPR isPumpRunning() [L117] tmp___1 = isPumpRunning() [L119] COND FALSE !(\read(tmp___1)) [L123] CALL __automaton_fail() [L54] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 205 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 202 mSDsluCounter, 680 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 358 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 59 IncrementalHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 322 mSDtfsCounter, 59 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=4, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 158 NumberOfCodeBlocks, 158 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 221 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-12 06:19:13,098 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE