./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product25.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_product25.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 5af7a19aabc47c6ad0d023db96d81a1e5e3db737faffc67c3935346aa9890fbf --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 06:19:14,170 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 06:19:14,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 06:19:14,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 06:19:14,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 06:19:14,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 06:19:14,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 06:19:14,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 06:19:14,217 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 06:19:14,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 06:19:14,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 06:19:14,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 06:19:14,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 06:19:14,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 06:19:14,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 06:19:14,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 06:19:14,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 06:19:14,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 06:19:14,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 06:19:14,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 06:19:14,237 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 06:19:14,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 06:19:14,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 06:19:14,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 06:19:14,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 06:19:14,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 06:19:14,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 06:19:14,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 06:19:14,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 06:19:14,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 06:19:14,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 06:19:14,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 06:19:14,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 06:19:14,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 06:19:14,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 06:19:14,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 06:19:14,252 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 06:19:14,253 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 06:19:14,253 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 06:19:14,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 06:19:14,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 06:19:14,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 06:19:14,257 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 06:19:14,280 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 06:19:14,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 06:19:14,281 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 06:19:14,281 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 06:19:14,282 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 06:19:14,282 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 06:19:14,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 06:19:14,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 06:19:14,283 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 06:19:14,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 06:19:14,284 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 06:19:14,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 06:19:14,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 06:19:14,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 06:19:14,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 06:19:14,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 06:19:14,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 06:19:14,285 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 06:19:14,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 06:19:14,286 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 06:19:14,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 06:19:14,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 06:19:14,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 06:19:14,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 06:19:14,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:19:14,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 06:19:14,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 06:19:14,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 06:19:14,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 06:19:14,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 06:19:14,288 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 06:19:14,288 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 06:19:14,288 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 06:19:14,288 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5af7a19aabc47c6ad0d023db96d81a1e5e3db737faffc67c3935346aa9890fbf [2022-07-12 06:19:14,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 06:19:14,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 06:19:14,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 06:19:14,522 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 06:19:14,523 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 06:19:14,524 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c [2022-07-12 06:19:14,577 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3908615bb/e6d68550ebbf44169785623c77bdf257/FLAG68cd78122 [2022-07-12 06:19:15,003 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 06:19:15,003 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c [2022-07-12 06:19:15,015 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3908615bb/e6d68550ebbf44169785623c77bdf257/FLAG68cd78122 [2022-07-12 06:19:15,031 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3908615bb/e6d68550ebbf44169785623c77bdf257 [2022-07-12 06:19:15,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 06:19:15,034 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 06:19:15,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 06:19:15,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 06:19:15,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 06:19:15,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:19:15" (1/1) ... [2022-07-12 06:19:15,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b3cc739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:15, skipping insertion in model container [2022-07-12 06:19:15,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:19:15" (1/1) ... [2022-07-12 06:19:15,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 06:19:15,084 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 06:19:15,277 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_product25.cil.c[2191,2204] [2022-07-12 06:19:15,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:19:15,392 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 06:19:15,410 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_product25.cil.c[2191,2204] [2022-07-12 06:19:15,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:19:15,480 INFO L208 MainTranslator]: Completed translation [2022-07-12 06:19:15,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:15 WrapperNode [2022-07-12 06:19:15,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 06:19:15,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 06:19:15,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 06:19:15,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 06:19:15,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:15" (1/1) ... [2022-07-12 06:19:15,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:15" (1/1) ... [2022-07-12 06:19:15,538 INFO L137 Inliner]: procedures = 53, calls = 152, calls flagged for inlining = 22, calls inlined = 17, statements flattened = 225 [2022-07-12 06:19:15,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 06:19:15,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 06:19:15,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 06:19:15,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 06:19:15,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:15" (1/1) ... [2022-07-12 06:19:15,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:15" (1/1) ... [2022-07-12 06:19:15,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:15" (1/1) ... [2022-07-12 06:19:15,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:15" (1/1) ... [2022-07-12 06:19:15,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:15" (1/1) ... [2022-07-12 06:19:15,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:15" (1/1) ... [2022-07-12 06:19:15,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:15" (1/1) ... [2022-07-12 06:19:15,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 06:19:15,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 06:19:15,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 06:19:15,592 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 06:19:15,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:15" (1/1) ... [2022-07-12 06:19:15,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:19:15,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:19:15,617 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 06:19:15,635 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 06:19:15,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 06:19:15,663 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-12 06:19:15,663 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-12 06:19:15,663 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-12 06:19:15,663 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-12 06:19:15,663 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-12 06:19:15,664 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-12 06:19:15,664 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-12 06:19:15,664 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-12 06:19:15,664 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-12 06:19:15,664 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-12 06:19:15,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 06:19:15,664 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-12 06:19:15,664 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-12 06:19:15,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 06:19:15,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 06:19:15,749 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 06:19:15,751 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 06:19:15,965 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 06:19:15,971 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 06:19:15,971 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-12 06:19:15,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:19:15 BoogieIcfgContainer [2022-07-12 06:19:15,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 06:19:15,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 06:19:15,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 06:19:15,976 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 06:19:15,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 06:19:15" (1/3) ... [2022-07-12 06:19:15,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e98750 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:19:15, skipping insertion in model container [2022-07-12 06:19:15,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:15" (2/3) ... [2022-07-12 06:19:15,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e98750 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:19:15, skipping insertion in model container [2022-07-12 06:19:15,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:19:15" (3/3) ... [2022-07-12 06:19:15,978 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product25.cil.c [2022-07-12 06:19:15,988 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 06:19:15,989 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 06:19:16,036 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 06:19:16,041 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@48ab300f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5b9ad22d [2022-07-12 06:19:16,042 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 06:19:16,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 58 states have (on average 1.396551724137931) internal successors, (81), 64 states have internal predecessors, (81), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-07-12 06:19:16,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-12 06:19:16,054 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:19:16,054 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 06:19:16,055 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:19:16,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:19:16,061 INFO L85 PathProgramCache]: Analyzing trace with hash 234388957, now seen corresponding path program 1 times [2022-07-12 06:19:16,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:19:16,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394408176] [2022-07-12 06:19:16,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:19:16,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:19:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:16,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 06:19:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:16,319 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 06:19:16,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:19:16,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394408176] [2022-07-12 06:19:16,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394408176] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:19:16,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:19:16,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 06:19:16,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488281053] [2022-07-12 06:19:16,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:19:16,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 06:19:16,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:19:16,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 06:19:16,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 06:19:16,354 INFO L87 Difference]: Start difference. First operand has 75 states, 58 states have (on average 1.396551724137931) internal successors, (81), 64 states have internal predecessors, (81), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) 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 06:19:16,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:19:16,386 INFO L93 Difference]: Finished difference Result 142 states and 193 transitions. [2022-07-12 06:19:16,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 06:19:16,389 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 06:19:16,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:19:16,396 INFO L225 Difference]: With dead ends: 142 [2022-07-12 06:19:16,396 INFO L226 Difference]: Without dead ends: 66 [2022-07-12 06:19:16,402 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 06:19:16,405 INFO L413 NwaCegarLoop]: 93 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, 93 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 06:19:16,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:19:16,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-07-12 06:19:16,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-07-12 06:19:16,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 56 states have internal predecessors, (67), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-12 06:19:16,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 84 transitions. [2022-07-12 06:19:16,448 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 84 transitions. Word has length 25 [2022-07-12 06:19:16,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:19:16,448 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 84 transitions. [2022-07-12 06:19:16,449 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 06:19:16,449 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 84 transitions. [2022-07-12 06:19:16,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-12 06:19:16,452 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:19:16,452 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 06:19:16,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 06:19:16,452 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:19:16,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:19:16,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1566921044, now seen corresponding path program 1 times [2022-07-12 06:19:16,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:19:16,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871405370] [2022-07-12 06:19:16,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:19:16,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:19:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:16,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 06:19:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:16,522 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 06:19:16,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:19:16,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871405370] [2022-07-12 06:19:16,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871405370] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:19:16,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:19:16,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 06:19:16,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714742046] [2022-07-12 06:19:16,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:19:16,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 06:19:16,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:19:16,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 06:19:16,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 06:19:16,528 INFO L87 Difference]: Start difference. First operand 66 states and 84 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 06:19:16,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:19:16,544 INFO L93 Difference]: Finished difference Result 98 states and 124 transitions. [2022-07-12 06:19:16,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 06:19:16,544 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 06:19:16,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:19:16,545 INFO L225 Difference]: With dead ends: 98 [2022-07-12 06:19:16,545 INFO L226 Difference]: Without dead ends: 57 [2022-07-12 06:19:16,546 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 06:19:16,547 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 12 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 126 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 06:19:16,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 126 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:19:16,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-07-12 06:19:16,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-07-12 06:19:16,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 50 states have internal predecessors, (60), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-12 06:19:16,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2022-07-12 06:19:16,560 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 26 [2022-07-12 06:19:16,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:19:16,563 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2022-07-12 06:19:16,564 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 06:19:16,564 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2022-07-12 06:19:16,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-12 06:19:16,565 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:19:16,565 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] [2022-07-12 06:19:16,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 06:19:16,566 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:19:16,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:19:16,566 INFO L85 PathProgramCache]: Analyzing trace with hash 979553586, now seen corresponding path program 1 times [2022-07-12 06:19:16,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:19:16,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398193048] [2022-07-12 06:19:16,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:19:16,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:19:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:16,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 06:19:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:16,643 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 06:19:16,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:19:16,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398193048] [2022-07-12 06:19:16,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398193048] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:19:16,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:19:16,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:19:16,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47359646] [2022-07-12 06:19:16,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:19:16,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:19:16,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:19:16,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:19:16,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:19:16,652 INFO L87 Difference]: Start difference. First operand 57 states and 72 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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 06:19:16,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:19:16,740 INFO L93 Difference]: Finished difference Result 107 states and 138 transitions. [2022-07-12 06:19:16,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 06:19:16,744 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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 30 [2022-07-12 06:19:16,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:19:16,745 INFO L225 Difference]: With dead ends: 107 [2022-07-12 06:19:16,745 INFO L226 Difference]: Without dead ends: 57 [2022-07-12 06:19:16,745 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 06:19:16,746 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 98 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:19:16,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 145 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:19:16,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-07-12 06:19:16,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-07-12 06:19:16,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 50 states have internal predecessors, (59), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-12 06:19:16,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 71 transitions. [2022-07-12 06:19:16,751 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 71 transitions. Word has length 30 [2022-07-12 06:19:16,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:19:16,752 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 71 transitions. [2022-07-12 06:19:16,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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 06:19:16,752 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 71 transitions. [2022-07-12 06:19:16,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-12 06:19:16,753 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:19:16,753 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] [2022-07-12 06:19:16,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 06:19:16,753 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:19:16,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:19:16,754 INFO L85 PathProgramCache]: Analyzing trace with hash 185331922, now seen corresponding path program 1 times [2022-07-12 06:19:16,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:19:16,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36613523] [2022-07-12 06:19:16,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:19:16,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:19:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:16,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 06:19:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:16,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 06:19:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:16,799 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 06:19:16,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:19:16,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36613523] [2022-07-12 06:19:16,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36613523] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:19:16,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:19:16,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 06:19:16,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584294112] [2022-07-12 06:19:16,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:19:16,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 06:19:16,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:19:16,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 06:19:16,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 06:19:16,802 INFO L87 Difference]: Start difference. First operand 57 states and 71 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 06:19:16,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:19:16,847 INFO L93 Difference]: Finished difference Result 153 states and 199 transitions. [2022-07-12 06:19:16,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 06:19:16,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 35 [2022-07-12 06:19:16,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:19:16,849 INFO L225 Difference]: With dead ends: 153 [2022-07-12 06:19:16,849 INFO L226 Difference]: Without dead ends: 103 [2022-07-12 06:19:16,849 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 06:19:16,850 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 42 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 277 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 [2022-07-12 06:19:16,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 277 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:19:16,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-07-12 06:19:16,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 100. [2022-07-12 06:19:16,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 78 states have (on average 1.3076923076923077) internal successors, (102), 86 states have internal predecessors, (102), 12 states have call successors, (12), 10 states have call predecessors, (12), 9 states have return successors, (13), 9 states have call predecessors, (13), 12 states have call successors, (13) [2022-07-12 06:19:16,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 127 transitions. [2022-07-12 06:19:16,861 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 127 transitions. Word has length 35 [2022-07-12 06:19:16,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:19:16,862 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 127 transitions. [2022-07-12 06:19:16,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 06:19:16,862 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 127 transitions. [2022-07-12 06:19:16,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-12 06:19:16,863 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:19:16,863 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] [2022-07-12 06:19:16,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 06:19:16,863 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:19:16,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:19:16,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1701903188, now seen corresponding path program 1 times [2022-07-12 06:19:16,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:19:16,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71581064] [2022-07-12 06:19:16,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:19:16,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:19:16,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 06:19:16,879 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 06:19:16,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 06:19:16,926 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 06:19:16,926 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 06:19:16,927 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 06:19:16,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 06:19:16,932 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-12 06:19:16,934 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 06:19:16,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 06:19:16 BoogieIcfgContainer [2022-07-12 06:19:16,961 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 06:19:16,962 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 06:19:16,962 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 06:19:16,962 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 06:19:16,962 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:19:15" (3/4) ... [2022-07-12 06:19:16,964 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-12 06:19:17,025 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 06:19:17,026 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 06:19:17,027 INFO L158 Benchmark]: Toolchain (without parser) took 1992.29ms. Allocated memory was 100.7MB in the beginning and 123.7MB in the end (delta: 23.1MB). Free memory was 67.5MB in the beginning and 60.4MB in the end (delta: 7.1MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2022-07-12 06:19:17,029 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 100.7MB. Free memory is still 55.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 06:19:17,029 INFO L158 Benchmark]: CACSL2BoogieTranslator took 445.22ms. Allocated memory is still 100.7MB. Free memory was 67.3MB in the beginning and 65.8MB in the end (delta: 1.5MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-07-12 06:19:17,029 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.26ms. Allocated memory is still 100.7MB. Free memory was 65.8MB in the beginning and 63.4MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-12 06:19:17,031 INFO L158 Benchmark]: Boogie Preprocessor took 38.76ms. Allocated memory is still 100.7MB. Free memory was 63.4MB in the beginning and 62.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 06:19:17,032 INFO L158 Benchmark]: RCFGBuilder took 382.06ms. Allocated memory was 100.7MB in the beginning and 123.7MB in the end (delta: 23.1MB). Free memory was 61.6MB in the beginning and 99.1MB in the end (delta: -37.5MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2022-07-12 06:19:17,032 INFO L158 Benchmark]: TraceAbstraction took 987.35ms. Allocated memory is still 123.7MB. Free memory was 98.4MB in the beginning and 63.6MB in the end (delta: 34.9MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. [2022-07-12 06:19:17,032 INFO L158 Benchmark]: Witness Printer took 64.36ms. Allocated memory is still 123.7MB. Free memory was 63.6MB in the beginning and 60.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-12 06:19:17,034 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 100.7MB. Free memory is still 55.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 445.22ms. Allocated memory is still 100.7MB. Free memory was 67.3MB in the beginning and 65.8MB in the end (delta: 1.5MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.26ms. Allocated memory is still 100.7MB. Free memory was 65.8MB in the beginning and 63.4MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.76ms. Allocated memory is still 100.7MB. Free memory was 63.4MB in the beginning and 62.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 382.06ms. Allocated memory was 100.7MB in the beginning and 123.7MB in the end (delta: 23.1MB). Free memory was 61.6MB in the beginning and 99.1MB in the end (delta: -37.5MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * TraceAbstraction took 987.35ms. Allocated memory is still 123.7MB. Free memory was 98.4MB in the beginning and 63.6MB in the end (delta: 34.9MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. * Witness Printer took 64.36ms. Allocated memory is still 123.7MB. Free memory was 63.6MB in the beginning and 60.4MB in the end (delta: 3.2MB). 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: 92]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L266] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L468] int waterLevel = 1; [L469] int methaneLevelCritical = 0; [L595] int cleanupTimeShifts = 4; [L696] int pumpRunning = 0; [L697] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L671] int retValue_acc ; [L672] int tmp ; [L676] FCALL select_helpers() [L677] FCALL select_features() [L678] CALL, EXPR valid_product() [L586] int retValue_acc ; [L589] retValue_acc = 1 [L590] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L678] RET, EXPR valid_product() [L678] tmp = valid_product() [L680] COND TRUE \read(tmp) [L682] FCALL setup() [L683] CALL runTest() [L665] CALL test() [L867] int splverifierCounter ; [L868] int tmp ; [L869] int tmp___0 ; [L870] int tmp___1 ; [L871] int tmp___2 ; [L874] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L876] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L878] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L884] tmp = __VERIFIER_nondet_int() [L886] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L888] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L486] COND TRUE waterLevel < 2 [L487] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L888] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L894] tmp___0 = __VERIFIER_nondet_int() [L896] 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] [L904] tmp___2 = __VERIFIER_nondet_int() [L906] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=-2, waterLevel=2] [L919] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L703] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L710] COND TRUE \read(systemActive) [L712] CALL processEnvironment() [L732] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L735] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L750] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L712] RET processEnvironment() [L718] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L61] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L507] int retValue_acc ; [L510] retValue_acc = methaneLevelCritical [L511] 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] [L61] 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] [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L539] int retValue_acc ; [L542] retValue_acc = waterLevel [L543] 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] [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND TRUE tmp___0 == 2 [L71] CALL, EXPR isPumpRunning() [L802] int retValue_acc ; [L805] retValue_acc = pumpRunning [L806] 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] [L71] RET, EXPR isPumpRunning() [L71] tmp___1 = isPumpRunning() [L73] COND FALSE !(\read(tmp___1)) [L77] CALL __automaton_fail() [L92] 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 7 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 155 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 152 mSDsluCounter, 641 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 338 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 55 IncrementalHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 303 mSDtfsCounter, 55 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=100occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 214 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 06:19:17,077 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