./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8d31f386 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_product23.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 3fe7406d6de8fdb6131e88150aaf8ea7b61928bc .............................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-05 09:54:36,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 09:54:36,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 09:54:36,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 09:54:36,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 09:54:36,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 09:54:36,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 09:54:36,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 09:54:36,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 09:54:36,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 09:54:36,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 09:54:36,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 09:54:36,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 09:54:36,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 09:54:36,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 09:54:36,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 09:54:36,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 09:54:36,212 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 09:54:36,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 09:54:36,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 09:54:36,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 09:54:36,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 09:54:36,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 09:54:36,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 09:54:36,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 09:54:36,225 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 09:54:36,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 09:54:36,226 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 09:54:36,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 09:54:36,227 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 09:54:36,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 09:54:36,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 09:54:36,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 09:54:36,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 09:54:36,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 09:54:36,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 09:54:36,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 09:54:36,231 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 09:54:36,231 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 09:54:36,232 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 09:54:36,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 09:54:36,233 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-05 09:54:36,260 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 09:54:36,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 09:54:36,263 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 09:54:36,264 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 09:54:36,264 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 09:54:36,264 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 09:54:36,264 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 09:54:36,264 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-05 09:54:36,265 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 09:54:36,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 09:54:36,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 09:54:36,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 09:54:36,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 09:54:36,266 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 09:54:36,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 09:54:36,266 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 09:54:36,266 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 09:54:36,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 09:54:36,267 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 09:54:36,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 09:54:36,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 09:54:36,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 09:54:36,267 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 09:54:36,267 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 09:54:36,268 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-05 09:54:36,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-05 09:54:36,268 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 09:54:36,268 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 09:54:36,268 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fe7406d6de8fdb6131e88150aaf8ea7b61928bc [2021-07-05 09:54:36,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 09:54:36,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 09:54:36,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 09:54:36,536 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 09:54:36,537 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 09:54:36,537 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2021-07-05 09:54:36,589 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20a718f09/7a50edd1d58a4103b1e4024344a2d1a7/FLAGffc512118 [2021-07-05 09:54:36,994 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 09:54:36,997 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2021-07-05 09:54:37,009 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20a718f09/7a50edd1d58a4103b1e4024344a2d1a7/FLAGffc512118 [2021-07-05 09:54:37,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20a718f09/7a50edd1d58a4103b1e4024344a2d1a7 [2021-07-05 09:54:37,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 09:54:37,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 09:54:37,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 09:54:37,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 09:54:37,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 09:54:37,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 09:54:37" (1/1) ... [2021-07-05 09:54:37,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ff04bea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:37, skipping insertion in model container [2021-07-05 09:54:37,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 09:54:37" (1/1) ... [2021-07-05 09:54:37,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 09:54:37,068 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 09:54:37,273 WARN L224 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_product23.cil.c[7763,7776] [2021-07-05 09:54:37,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 09:54:37,338 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 09:54:37,373 WARN L224 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_product23.cil.c[7763,7776] [2021-07-05 09:54:37,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 09:54:37,418 INFO L208 MainTranslator]: Completed translation [2021-07-05 09:54:37,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:37 WrapperNode [2021-07-05 09:54:37,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 09:54:37,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 09:54:37,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 09:54:37,421 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 09:54:37,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:37" (1/1) ... [2021-07-05 09:54:37,449 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:37" (1/1) ... [2021-07-05 09:54:37,492 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 09:54:37,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 09:54:37,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 09:54:37,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 09:54:37,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:37" (1/1) ... [2021-07-05 09:54:37,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:37" (1/1) ... [2021-07-05 09:54:37,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:37" (1/1) ... [2021-07-05 09:54:37,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:37" (1/1) ... [2021-07-05 09:54:37,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:37" (1/1) ... [2021-07-05 09:54:37,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:37" (1/1) ... [2021-07-05 09:54:37,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:37" (1/1) ... [2021-07-05 09:54:37,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 09:54:37,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 09:54:37,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 09:54:37,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 09:54:37,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:37" (1/1) ... [2021-07-05 09:54:37,546 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 09:54:37,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 09:54:37,625 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-07-05 09:54:37,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-07-05 09:54:37,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 09:54:37,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-05 09:54:37,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 09:54:37,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 09:54:38,347 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 09:54:38,347 INFO L299 CfgBuilder]: Removed 166 assume(true) statements. [2021-07-05 09:54:38,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 09:54:38 BoogieIcfgContainer [2021-07-05 09:54:38,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 09:54:38,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 09:54:38,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 09:54:38,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 09:54:38,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 09:54:37" (1/3) ... [2021-07-05 09:54:38,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666106af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 09:54:38, skipping insertion in model container [2021-07-05 09:54:38,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:37" (2/3) ... [2021-07-05 09:54:38,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666106af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 09:54:38, skipping insertion in model container [2021-07-05 09:54:38,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 09:54:38" (3/3) ... [2021-07-05 09:54:38,353 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product23.cil.c [2021-07-05 09:54:38,357 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 09:54:38,358 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-07-05 09:54:38,384 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 09:54:38,387 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 09:54:38,388 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 09:54:38,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 109 states have (on average 1.5412844036697249) internal successors, (168), 112 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:38,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-07-05 09:54:38,402 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 09:54:38,403 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 09:54:38,403 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 09:54:38,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 09:54:38,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1149792188, now seen corresponding path program 1 times [2021-07-05 09:54:38,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 09:54:38,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242310850] [2021-07-05 09:54:38,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 09:54:38,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 09:54:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 09:54:38,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:38,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 09:54:38,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:38,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 09:54:38,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:38,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 09:54:38,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:38,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 09:54:38,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:38,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 09:54:38,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 09:54:38,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 09:54:38,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242310850] [2021-07-05 09:54:38,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242310850] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 09:54:38,612 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 09:54:38,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-05 09:54:38,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037888791] [2021-07-05 09:54:38,616 INFO L425 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-05 09:54:38,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 09:54:38,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-05 09:54:38,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-07-05 09:54:38,632 INFO L87 Difference]: Start difference. First operand has 113 states, 109 states have (on average 1.5412844036697249) internal successors, (168), 112 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:38,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 09:54:38,801 INFO L93 Difference]: Finished difference Result 386 states and 579 transitions. [2021-07-05 09:54:38,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-05 09:54:38,802 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-07-05 09:54:38,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 09:54:38,808 INFO L225 Difference]: With dead ends: 386 [2021-07-05 09:54:38,809 INFO L226 Difference]: Without dead ends: 113 [2021-07-05 09:54:38,811 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.2ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-05 09:54:38,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-07-05 09:54:38,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 68. [2021-07-05 09:54:38,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.4776119402985075) internal successors, (99), 67 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:38,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2021-07-05 09:54:38,838 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 24 [2021-07-05 09:54:38,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 09:54:38,839 INFO L442 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2021-07-05 09:54:38,839 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:38,839 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2021-07-05 09:54:38,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-07-05 09:54:38,840 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 09:54:38,840 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 09:54:38,840 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-05 09:54:38,841 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 09:54:38,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 09:54:38,841 INFO L82 PathProgramCache]: Analyzing trace with hash 190951434, now seen corresponding path program 1 times [2021-07-05 09:54:38,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 09:54:38,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405814371] [2021-07-05 09:54:38,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 09:54:38,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 09:54:38,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 09:54:38,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:38,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 09:54:38,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:38,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 09:54:38,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:38,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 09:54:38,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:38,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 09:54:38,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 09:54:38,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 09:54:38,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405814371] [2021-07-05 09:54:38,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405814371] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 09:54:38,927 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 09:54:38,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-05 09:54:38,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266845832] [2021-07-05 09:54:38,929 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-05 09:54:38,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 09:54:38,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-05 09:54:38,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-05 09:54:38,929 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:39,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 09:54:39,045 INFO L93 Difference]: Finished difference Result 376 states and 572 transitions. [2021-07-05 09:54:39,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-05 09:54:39,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-07-05 09:54:39,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 09:54:39,049 INFO L225 Difference]: With dead ends: 376 [2021-07-05 09:54:39,051 INFO L226 Difference]: Without dead ends: 314 [2021-07-05 09:54:39,052 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 36.7ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-05 09:54:39,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2021-07-05 09:54:39,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 124. [2021-07-05 09:54:39,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 123 states have (on average 1.4552845528455285) internal successors, (179), 123 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:39,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 179 transitions. [2021-07-05 09:54:39,074 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 179 transitions. Word has length 26 [2021-07-05 09:54:39,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 09:54:39,075 INFO L442 AbstractCegarLoop]: Abstraction has 124 states and 179 transitions. [2021-07-05 09:54:39,075 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:39,076 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 179 transitions. [2021-07-05 09:54:39,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-07-05 09:54:39,082 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 09:54:39,082 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 09:54:39,082 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-05 09:54:39,082 INFO L374 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 09:54:39,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 09:54:39,084 INFO L82 PathProgramCache]: Analyzing trace with hash -418085112, now seen corresponding path program 1 times [2021-07-05 09:54:39,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 09:54:39,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638333577] [2021-07-05 09:54:39,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 09:54:39,089 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 09:54:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-05 09:54:39,173 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-05 09:54:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-05 09:54:39,239 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-05 09:54:39,268 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-05 09:54:39,268 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-05 09:54:39,270 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-05 09:54:39,270 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 09:54:39,272 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was UNSAFE (1/3) [2021-07-05 09:54:39,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.07 09:54:39 BoogieIcfgContainer [2021-07-05 09:54:39,336 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-05 09:54:39,336 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-05 09:54:39,336 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-05 09:54:39,336 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-05 09:54:39,336 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 09:54:38" (3/4) ... [2021-07-05 09:54:39,338 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-07-05 09:54:39,407 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-05 09:54:39,408 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-05 09:54:39,409 INFO L168 Benchmark]: Toolchain (without parser) took 2383.22 ms. Allocated memory was 54.5 MB in the beginning and 96.5 MB in the end (delta: 41.9 MB). Free memory was 30.5 MB in the beginning and 46.6 MB in the end (delta: -16.1 MB). Peak memory consumption was 25.4 MB. Max. memory is 16.1 GB. [2021-07-05 09:54:39,409 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 54.5 MB. Free memory is still 35.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 09:54:39,409 INFO L168 Benchmark]: CACSL2BoogieTranslator took 391.47 ms. Allocated memory was 54.5 MB in the beginning and 79.7 MB in the end (delta: 25.2 MB). Free memory was 30.3 MB in the beginning and 51.9 MB in the end (delta: -21.6 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2021-07-05 09:54:39,409 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.25 ms. Allocated memory is still 79.7 MB. Free memory was 51.9 MB in the beginning and 48.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-05 09:54:39,410 INFO L168 Benchmark]: Boogie Preprocessor took 42.41 ms. Allocated memory is still 79.7 MB. Free memory was 48.2 MB in the beginning and 45.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 09:54:39,410 INFO L168 Benchmark]: RCFGBuilder took 806.97 ms. Allocated memory is still 79.7 MB. Free memory was 45.4 MB in the beginning and 55.1 MB in the end (delta: -9.7 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. [2021-07-05 09:54:39,410 INFO L168 Benchmark]: TraceAbstraction took 986.35 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 54.4 MB in the beginning and 57.9 MB in the end (delta: -3.5 MB). Peak memory consumption was 33.8 MB. Max. memory is 16.1 GB. [2021-07-05 09:54:39,410 INFO L168 Benchmark]: Witness Printer took 71.84 ms. Allocated memory is still 96.5 MB. Free memory was 57.9 MB in the beginning and 46.6 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-07-05 09:54:39,412 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 54.5 MB. Free memory is still 35.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 391.47 ms. Allocated memory was 54.5 MB in the beginning and 79.7 MB in the end (delta: 25.2 MB). Free memory was 30.3 MB in the beginning and 51.9 MB in the end (delta: -21.6 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.25 ms. Allocated memory is still 79.7 MB. Free memory was 51.9 MB in the beginning and 48.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.41 ms. Allocated memory is still 79.7 MB. Free memory was 48.2 MB in the beginning and 45.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 806.97 ms. Allocated memory is still 79.7 MB. Free memory was 45.4 MB in the beginning and 55.1 MB in the end (delta: -9.7 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 986.35 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 54.4 MB in the beginning and 57.9 MB in the end (delta: -3.5 MB). Peak memory consumption was 33.8 MB. Max. memory is 16.1 GB. * Witness Printer took 71.84 ms. Allocated memory is still 96.5 MB. Free memory was 57.9 MB in the beginning and 46.6 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 543]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L179] int pumpRunning = 0; [L180] int systemActive = 1; [L440] int cleanupTimeShifts = 4; [L717] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L516] int retValue_acc ; [L517] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L940] int retValue_acc ; [L943] retValue_acc = 1 [L944] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L523] tmp = valid_product() [L525] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L374] int splverifierCounter ; [L375] int tmp ; [L376] int tmp___0 ; [L377] int tmp___1 ; [L378] int tmp___2 ; [L381] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L383] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L385] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L391] tmp = __VERIFIER_nondet_int() [L393] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L401] tmp___0 = __VERIFIER_nondet_int() [L403] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L411] tmp___2 = __VERIFIER_nondet_int() [L413] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L186] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L193] COND TRUE \read(systemActive) [L241] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L244] COND FALSE !(\read(pumpRunning)) [L215] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L218] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L141] int tmp ; [L142] int tmp___0 ; [L143] int tmp___1 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L147] tmp = isMethaneLevelCritical() [L149] COND FALSE !(\read(tmp)) [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L153] tmp___0 = getWaterLevel() [L155] COND TRUE tmp___0 == 2 [L293] int retValue_acc ; [L296] retValue_acc = pumpRunning [L297] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L157] tmp___1 = isPumpRunning() [L159] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L543] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 113 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 890.1ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 13.2ms, AutomataDifference: 316.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 264 SDtfs, 921 SDslu, 1011 SDs, 0 SdLazy, 90 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 129.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 64.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=2, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 39.0ms AutomataMinimizationTime, 2 MinimizatonAttempts, 235 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 17.8ms SsaConstructionTime, 163.6ms SatisfiabilityAnalysisTime, 136.7ms InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 133 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2021-07-05 09:54:39,443 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...