./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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_product24.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 168393e8d033cc8a1f93b6836944286e12246452392b8a342ff0210c89948e1e --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 17:38:18,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 17:38:18,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 17:38:18,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 17:38:18,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 17:38:18,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 17:38:18,303 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 17:38:18,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 17:38:18,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 17:38:18,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 17:38:18,324 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 17:38:18,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 17:38:18,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 17:38:18,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 17:38:18,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 17:38:18,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 17:38:18,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 17:38:18,332 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 17:38:18,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 17:38:18,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 17:38:18,339 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 17:38:18,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 17:38:18,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 17:38:18,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 17:38:18,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 17:38:18,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 17:38:18,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 17:38:18,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 17:38:18,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 17:38:18,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 17:38:18,364 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 17:38:18,365 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 17:38:18,366 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 17:38:18,366 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 17:38:18,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 17:38:18,367 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 17:38:18,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 17:38:18,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 17:38:18,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 17:38:18,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 17:38:18,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 17:38:18,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 17:38:18,370 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 17:38:18,411 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 17:38:18,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 17:38:18,411 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 17:38:18,411 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 17:38:18,412 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 17:38:18,412 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 17:38:18,412 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 17:38:18,412 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 17:38:18,412 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 17:38:18,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 17:38:18,412 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 17:38:18,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 17:38:18,413 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 17:38:18,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 17:38:18,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 17:38:18,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 17:38:18,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 17:38:18,413 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 17:38:18,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 17:38:18,413 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 17:38:18,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 17:38:18,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 17:38:18,414 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 17:38:18,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 17:38:18,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 17:38:18,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 17:38:18,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 17:38:18,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 17:38:18,414 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 17:38:18,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 17:38:18,414 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 17:38:18,415 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 17:38:18,415 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 17:38:18,415 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 168393e8d033cc8a1f93b6836944286e12246452392b8a342ff0210c89948e1e [2022-07-22 17:38:18,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 17:38:18,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 17:38:18,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 17:38:18,647 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 17:38:18,648 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 17:38:18,649 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2022-07-22 17:38:18,692 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02edc3131/1024309aaecf414da393745b87b8280a/FLAGf595e8378 [2022-07-22 17:38:19,073 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 17:38:19,073 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2022-07-22 17:38:19,087 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02edc3131/1024309aaecf414da393745b87b8280a/FLAGf595e8378 [2022-07-22 17:38:19,422 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02edc3131/1024309aaecf414da393745b87b8280a [2022-07-22 17:38:19,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 17:38:19,424 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 17:38:19,426 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 17:38:19,426 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 17:38:19,429 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 17:38:19,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 05:38:19" (1/1) ... [2022-07-22 17:38:19,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@345c3d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:19, skipping insertion in model container [2022-07-22 17:38:19,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 05:38:19" (1/1) ... [2022-07-22 17:38:19,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 17:38:19,477 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 17:38:19,572 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_product24.cil.c[1605,1618] [2022-07-22 17:38:19,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 17:38:19,726 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 17:38:19,747 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_product24.cil.c[1605,1618] [2022-07-22 17:38:19,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 17:38:19,830 INFO L208 MainTranslator]: Completed translation [2022-07-22 17:38:19,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:19 WrapperNode [2022-07-22 17:38:19,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 17:38:19,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 17:38:19,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 17:38:19,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 17:38:19,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:19" (1/1) ... [2022-07-22 17:38:19,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:19" (1/1) ... [2022-07-22 17:38:19,887 INFO L137 Inliner]: procedures = 55, calls = 157, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 251 [2022-07-22 17:38:19,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 17:38:19,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 17:38:19,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 17:38:19,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 17:38:19,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:19" (1/1) ... [2022-07-22 17:38:19,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:19" (1/1) ... [2022-07-22 17:38:19,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:19" (1/1) ... [2022-07-22 17:38:19,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:19" (1/1) ... [2022-07-22 17:38:19,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:19" (1/1) ... [2022-07-22 17:38:19,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:19" (1/1) ... [2022-07-22 17:38:19,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:19" (1/1) ... [2022-07-22 17:38:19,928 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 17:38:19,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 17:38:19,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 17:38:19,931 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 17:38:19,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:19" (1/1) ... [2022-07-22 17:38:19,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 17:38:19,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:38:19,962 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) [2022-07-22 17:38:19,978 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 [2022-07-22 17:38:19,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 17:38:19,993 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-22 17:38:19,994 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-22 17:38:19,994 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-22 17:38:19,994 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-22 17:38:19,994 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-22 17:38:19,994 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-22 17:38:19,994 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-22 17:38:19,994 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-22 17:38:19,994 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-22 17:38:19,995 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-22 17:38:19,995 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2022-07-22 17:38:19,995 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2022-07-22 17:38:19,995 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-22 17:38:19,995 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-22 17:38:19,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 17:38:19,995 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-22 17:38:19,995 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-22 17:38:19,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 17:38:19,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 17:38:20,042 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 17:38:20,043 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 17:38:20,330 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 17:38:20,335 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 17:38:20,336 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 17:38:20,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:38:20 BoogieIcfgContainer [2022-07-22 17:38:20,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 17:38:20,338 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 17:38:20,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 17:38:20,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 17:38:20,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 05:38:19" (1/3) ... [2022-07-22 17:38:20,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a8a0b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 05:38:20, skipping insertion in model container [2022-07-22 17:38:20,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:19" (2/3) ... [2022-07-22 17:38:20,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a8a0b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 05:38:20, skipping insertion in model container [2022-07-22 17:38:20,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:38:20" (3/3) ... [2022-07-22 17:38:20,343 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product24.cil.c [2022-07-22 17:38:20,354 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 17:38:20,367 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 17:38:20,413 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 17:38:20,433 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@5cfb5bed, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@9307527 [2022-07-22 17:38:20,434 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 17:38:20,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 69 states have (on average 1.3768115942028984) internal successors, (95), 78 states have internal predecessors, (95), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2022-07-22 17:38:20,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-22 17:38:20,448 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:38:20,448 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] [2022-07-22 17:38:20,449 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:38:20,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:38:20,453 INFO L85 PathProgramCache]: Analyzing trace with hash -986087536, now seen corresponding path program 1 times [2022-07-22 17:38:20,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:38:20,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911023838] [2022-07-22 17:38:20,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:38:20,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:38:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:20,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 17:38:20,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:20,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:38:20,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:38:20,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911023838] [2022-07-22 17:38:20,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911023838] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:38:20,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:38:20,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 17:38:20,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578869933] [2022-07-22 17:38:20,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:38:20,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 17:38:20,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:38:20,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 17:38:20,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 17:38:20,775 INFO L87 Difference]: Start difference. First operand has 94 states, 69 states have (on average 1.3768115942028984) internal successors, (95), 78 states have internal predecessors, (95), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) 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) [2022-07-22 17:38:20,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:38:20,827 INFO L93 Difference]: Finished difference Result 180 states and 245 transitions. [2022-07-22 17:38:20,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 17:38:20,829 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 [2022-07-22 17:38:20,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:38:20,850 INFO L225 Difference]: With dead ends: 180 [2022-07-22 17:38:20,850 INFO L226 Difference]: Without dead ends: 85 [2022-07-22 17:38:20,853 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 [2022-07-22 17:38:20,857 INFO L413 NwaCegarLoop]: 119 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, 119 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 [2022-07-22 17:38:20,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:38:20,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-07-22 17:38:20,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2022-07-22 17:38:20,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 62 states have (on average 1.3064516129032258) internal successors, (81), 70 states have internal predecessors, (81), 15 states have call successors, (15), 8 states have call predecessors, (15), 7 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2022-07-22 17:38:20,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 110 transitions. [2022-07-22 17:38:20,899 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 110 transitions. Word has length 25 [2022-07-22 17:38:20,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:38:20,899 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 110 transitions. [2022-07-22 17:38:20,900 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) [2022-07-22 17:38:20,900 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 110 transitions. [2022-07-22 17:38:20,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-22 17:38:20,903 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:38:20,904 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] [2022-07-22 17:38:20,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 17:38:20,904 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:38:20,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:38:20,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1067862747, now seen corresponding path program 1 times [2022-07-22 17:38:20,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:38:20,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896659608] [2022-07-22 17:38:20,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:38:20,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:38:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:20,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 17:38:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:21,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:38:21,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:38:21,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896659608] [2022-07-22 17:38:21,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896659608] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:38:21,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:38:21,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:38:21,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135865525] [2022-07-22 17:38:21,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:38:21,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:38:21,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:38:21,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:38:21,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:38:21,024 INFO L87 Difference]: Start difference. First operand 85 states and 110 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) [2022-07-22 17:38:21,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:38:21,052 INFO L93 Difference]: Finished difference Result 131 states and 169 transitions. [2022-07-22 17:38:21,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:38:21,054 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 [2022-07-22 17:38:21,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:38:21,055 INFO L225 Difference]: With dead ends: 131 [2022-07-22 17:38:21,055 INFO L226 Difference]: Without dead ends: 76 [2022-07-22 17:38:21,056 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 [2022-07-22 17:38:21,057 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 17 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 172 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 [2022-07-22 17:38:21,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 172 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:38:21,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-07-22 17:38:21,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-07-22 17:38:21,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 56 states have (on average 1.3214285714285714) internal successors, (74), 64 states have internal predecessors, (74), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 8 states have call predecessors, (12), 12 states have call successors, (12) [2022-07-22 17:38:21,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 98 transitions. [2022-07-22 17:38:21,067 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 98 transitions. Word has length 26 [2022-07-22 17:38:21,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:38:21,068 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 98 transitions. [2022-07-22 17:38:21,069 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) [2022-07-22 17:38:21,069 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 98 transitions. [2022-07-22 17:38:21,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-22 17:38:21,070 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:38:21,070 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] [2022-07-22 17:38:21,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 17:38:21,070 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:38:21,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:38:21,071 INFO L85 PathProgramCache]: Analyzing trace with hash 862122564, now seen corresponding path program 1 times [2022-07-22 17:38:21,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:38:21,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145383045] [2022-07-22 17:38:21,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:38:21,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:38:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:21,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 17:38:21,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:21,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:38:21,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:38:21,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145383045] [2022-07-22 17:38:21,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145383045] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:38:21,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:38:21,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:38:21,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669493701] [2022-07-22 17:38:21,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:38:21,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:38:21,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:38:21,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:38:21,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:38:21,110 INFO L87 Difference]: Start difference. First operand 76 states and 98 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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) [2022-07-22 17:38:21,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:38:21,136 INFO L93 Difference]: Finished difference Result 212 states and 279 transitions. [2022-07-22 17:38:21,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:38:21,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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 [2022-07-22 17:38:21,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:38:21,140 INFO L225 Difference]: With dead ends: 212 [2022-07-22 17:38:21,140 INFO L226 Difference]: Without dead ends: 143 [2022-07-22 17:38:21,142 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 [2022-07-22 17:38:21,144 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 90 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:38:21,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 209 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:38:21,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2022-07-22 17:38:21,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 140. [2022-07-22 17:38:21,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 101 states have (on average 1.3465346534653466) internal successors, (136), 116 states have internal predecessors, (136), 24 states have call successors, (24), 14 states have call predecessors, (24), 14 states have return successors, (24), 15 states have call predecessors, (24), 24 states have call successors, (24) [2022-07-22 17:38:21,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 184 transitions. [2022-07-22 17:38:21,161 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 184 transitions. Word has length 31 [2022-07-22 17:38:21,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:38:21,161 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 184 transitions. [2022-07-22 17:38:21,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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) [2022-07-22 17:38:21,162 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 184 transitions. [2022-07-22 17:38:21,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-22 17:38:21,163 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:38:21,163 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] [2022-07-22 17:38:21,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 17:38:21,163 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:38:21,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:38:21,164 INFO L85 PathProgramCache]: Analyzing trace with hash 390614444, now seen corresponding path program 1 times [2022-07-22 17:38:21,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:38:21,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847626363] [2022-07-22 17:38:21,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:38:21,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:38:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:21,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 17:38:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:21,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:38:21,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:38:21,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847626363] [2022-07-22 17:38:21,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847626363] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:38:21,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:38:21,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 17:38:21,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472170738] [2022-07-22 17:38:21,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:38:21,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 17:38:21,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:38:21,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 17:38:21,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:38:21,234 INFO L87 Difference]: Start difference. First operand 140 states and 184 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, (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) [2022-07-22 17:38:21,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:38:21,303 INFO L93 Difference]: Finished difference Result 400 states and 539 transitions. [2022-07-22 17:38:21,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 17:38:21,304 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, (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 34 [2022-07-22 17:38:21,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:38:21,308 INFO L225 Difference]: With dead ends: 400 [2022-07-22 17:38:21,309 INFO L226 Difference]: Without dead ends: 267 [2022-07-22 17:38:21,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:38:21,310 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 68 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:38:21,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 403 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:38:21,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-07-22 17:38:21,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 261. [2022-07-22 17:38:21,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 186 states have (on average 1.3333333333333333) internal successors, (248), 213 states have internal predecessors, (248), 48 states have call successors, (48), 28 states have call predecessors, (48), 26 states have return successors, (50), 28 states have call predecessors, (50), 48 states have call successors, (50) [2022-07-22 17:38:21,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 346 transitions. [2022-07-22 17:38:21,352 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 346 transitions. Word has length 34 [2022-07-22 17:38:21,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:38:21,353 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 346 transitions. [2022-07-22 17:38:21,353 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, (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) [2022-07-22 17:38:21,353 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 346 transitions. [2022-07-22 17:38:21,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-22 17:38:21,355 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:38:21,355 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] [2022-07-22 17:38:21,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 17:38:21,355 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:38:21,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:38:21,356 INFO L85 PathProgramCache]: Analyzing trace with hash 566154770, now seen corresponding path program 1 times [2022-07-22 17:38:21,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:38:21,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707641386] [2022-07-22 17:38:21,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:38:21,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:38:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 17:38:21,384 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 17:38:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 17:38:21,426 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 17:38:21,426 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 17:38:21,427 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 17:38:21,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 17:38:21,432 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-22 17:38:21,437 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 17:38:21,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 05:38:21 BoogieIcfgContainer [2022-07-22 17:38:21,488 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 17:38:21,488 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 17:38:21,488 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 17:38:21,489 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 17:38:21,489 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:38:20" (3/4) ... [2022-07-22 17:38:21,490 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-22 17:38:21,538 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 17:38:21,543 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 17:38:21,544 INFO L158 Benchmark]: Toolchain (without parser) took 2119.83ms. Allocated memory is still 98.6MB. Free memory was 75.5MB in the beginning and 62.0MB in the end (delta: 13.5MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2022-07-22 17:38:21,545 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory was 58.4MB in the beginning and 58.3MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 17:38:21,545 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.42ms. Allocated memory is still 98.6MB. Free memory was 75.3MB in the beginning and 56.6MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-22 17:38:21,545 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.90ms. Allocated memory is still 98.6MB. Free memory was 56.6MB in the beginning and 54.1MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 17:38:21,546 INFO L158 Benchmark]: Boogie Preprocessor took 40.42ms. Allocated memory is still 98.6MB. Free memory was 54.1MB in the beginning and 52.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 17:38:21,546 INFO L158 Benchmark]: RCFGBuilder took 406.35ms. Allocated memory is still 98.6MB. Free memory was 52.5MB in the beginning and 70.1MB in the end (delta: -17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-22 17:38:21,546 INFO L158 Benchmark]: TraceAbstraction took 1149.60ms. Allocated memory is still 98.6MB. Free memory was 69.7MB in the beginning and 66.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2022-07-22 17:38:21,546 INFO L158 Benchmark]: Witness Printer took 55.36ms. Allocated memory is still 98.6MB. Free memory was 66.2MB in the beginning and 62.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 17:38:21,548 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory was 58.4MB in the beginning and 58.3MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 404.42ms. Allocated memory is still 98.6MB. Free memory was 75.3MB in the beginning and 56.6MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.90ms. Allocated memory is still 98.6MB. Free memory was 56.6MB in the beginning and 54.1MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.42ms. Allocated memory is still 98.6MB. Free memory was 54.1MB in the beginning and 52.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 406.35ms. Allocated memory is still 98.6MB. Free memory was 52.5MB in the beginning and 70.1MB in the end (delta: -17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1149.60ms. Allocated memory is still 98.6MB. Free memory was 69.7MB in the beginning and 66.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. * Witness Printer took 55.36ms. Allocated memory is still 98.6MB. Free memory was 66.2MB in the beginning and 62.0MB 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: [L70] int pumpRunning = 0; [L71] int systemActive = 1; [L379] int cleanupTimeShifts = 4; [L647] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L844] int waterLevel = 1; [L845] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L455] int retValue_acc ; [L456] int tmp ; [L460] FCALL select_helpers() [L461] FCALL select_features() [L462] CALL, EXPR valid_product() [L959] int retValue_acc ; [L962] retValue_acc = 1 [L963] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L462] RET, EXPR valid_product() [L462] tmp = valid_product() [L464] COND TRUE \read(tmp) [L466] FCALL setup() [L467] CALL runTest() [L446] CALL test() [L276] int splverifierCounter ; [L277] int tmp ; [L278] int tmp___0 ; [L279] int tmp___1 ; [L280] int tmp___2 ; [L283] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L285] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L287] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L293] tmp = __VERIFIER_nondet_int() [L295] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L297] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L862] COND TRUE waterLevel < 2 [L863] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L297] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L303] tmp___0 = __VERIFIER_nondet_int() [L305] 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] [L313] tmp___2 = __VERIFIER_nondet_int() [L315] COND FALSE !(\read(tmp___2)) [L321] tmp___1 = __VERIFIER_nondet_int() [L323] COND TRUE \read(tmp___1) [L325] CALL stopSystem() [L252] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L259] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L325] RET stopSystem() [L332] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L78] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L85] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L93] CALL __utac_acc__Specification3_spec__1() [L346] int tmp ; [L347] int tmp___0 ; [L348] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L352] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L883] int retValue_acc ; [L886] retValue_acc = methaneLevelCritical [L887] 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=0, waterLevel=2] [L352] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L352] tmp = isMethaneLevelCritical() [L354] COND FALSE !(\read(tmp)) [L358] CALL, EXPR getWaterLevel() [L915] int retValue_acc ; [L918] retValue_acc = waterLevel [L919] 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=0, waterLevel=2] [L358] RET, EXPR getWaterLevel() [L358] tmp___0 = getWaterLevel() [L360] COND TRUE tmp___0 == 2 [L362] CALL, EXPR isPumpRunning() [L185] int retValue_acc ; [L188] retValue_acc = pumpRunning [L189] 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=0, waterLevel=2] [L362] RET, EXPR isPumpRunning() [L362] tmp___1 = isPumpRunning() [L364] COND FALSE !(\read(tmp___1)) [L368] CALL __automaton_fail() [L54] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 94 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 179 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 175 mSDsluCounter, 903 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 457 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30 IncrementalHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 446 mSDtfsCounter, 30 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=261occurred in iteration=4, InterpolantAutomatonStates: 13, 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, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 180 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! [2022-07-22 17:38:21,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE