./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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_spec4_product36.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8094c843e4d897e4501a7b90ca3369f741555e9e ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.25-f470102 [2019-11-28 17:26:54,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 17:26:54,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 17:26:54,180 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 17:26:54,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 17:26:54,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 17:26:54,186 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 17:26:54,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 17:26:54,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 17:26:54,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 17:26:54,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 17:26:54,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 17:26:54,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 17:26:54,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 17:26:54,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 17:26:54,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 17:26:54,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 17:26:54,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 17:26:54,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 17:26:54,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 17:26:54,230 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 17:26:54,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 17:26:54,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 17:26:54,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 17:26:54,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 17:26:54,240 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 17:26:54,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 17:26:54,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 17:26:54,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 17:26:54,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 17:26:54,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 17:26:54,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 17:26:54,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 17:26:54,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 17:26:54,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 17:26:54,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 17:26:54,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 17:26:54,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 17:26:54,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 17:26:54,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 17:26:54,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 17:26:54,255 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 17:26:54,288 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 17:26:54,288 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 17:26:54,289 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 17:26:54,291 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 17:26:54,291 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 17:26:54,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 17:26:54,293 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 17:26:54,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 17:26:54,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 17:26:54,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 17:26:54,294 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 17:26:54,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 17:26:54,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 17:26:54,296 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 17:26:54,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 17:26:54,297 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 17:26:54,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 17:26:54,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 17:26:54,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 17:26:54,298 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 17:26:54,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 17:26:54,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 17:26:54,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 17:26:54,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 17:26:54,299 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 17:26:54,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 17:26:54,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 17:26:54,300 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 17:26:54,300 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 17:26:54,301 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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(__VERIFIER_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 -> 8094c843e4d897e4501a7b90ca3369f741555e9e [2019-11-28 17:26:54,623 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 17:26:54,636 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 17:26:54,639 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 17:26:54,641 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 17:26:54,642 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 17:26:54,642 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2019-11-28 17:26:54,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f46f2fbf/1b2df247b2c24075938683757b3a6b8b/FLAGb0310e493 [2019-11-28 17:26:55,276 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 17:26:55,277 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2019-11-28 17:26:55,287 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f46f2fbf/1b2df247b2c24075938683757b3a6b8b/FLAGb0310e493 [2019-11-28 17:26:55,576 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f46f2fbf/1b2df247b2c24075938683757b3a6b8b [2019-11-28 17:26:55,580 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 17:26:55,582 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 17:26:55,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 17:26:55,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 17:26:55,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 17:26:55,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:26:55" (1/1) ... [2019-11-28 17:26:55,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ee01756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:55, skipping insertion in model container [2019-11-28 17:26:55,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:26:55" (1/1) ... [2019-11-28 17:26:55,601 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 17:26:55,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 17:26:56,105 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:26:56,122 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 17:26:56,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:26:56,258 INFO L208 MainTranslator]: Completed translation [2019-11-28 17:26:56,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:56 WrapperNode [2019-11-28 17:26:56,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 17:26:56,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 17:26:56,260 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 17:26:56,260 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 17:26:56,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:56" (1/1) ... [2019-11-28 17:26:56,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:56" (1/1) ... [2019-11-28 17:26:56,332 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 17:26:56,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 17:26:56,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 17:26:56,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 17:26:56,341 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:56" (1/1) ... [2019-11-28 17:26:56,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:56" (1/1) ... [2019-11-28 17:26:56,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:56" (1/1) ... [2019-11-28 17:26:56,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:56" (1/1) ... [2019-11-28 17:26:56,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:56" (1/1) ... [2019-11-28 17:26:56,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:56" (1/1) ... [2019-11-28 17:26:56,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:56" (1/1) ... [2019-11-28 17:26:56,371 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 17:26:56,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 17:26:56,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 17:26:56,372 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 17:26:56,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 17:26:56,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 17:26:56,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 17:26:56,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 17:26:56,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 17:26:57,191 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 17:26:57,192 INFO L287 CfgBuilder]: Removed 102 assume(true) statements. [2019-11-28 17:26:57,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:26:57 BoogieIcfgContainer [2019-11-28 17:26:57,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 17:26:57,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 17:26:57,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 17:26:57,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 17:26:57,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:26:55" (1/3) ... [2019-11-28 17:26:57,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7119cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:26:57, skipping insertion in model container [2019-11-28 17:26:57,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:56" (2/3) ... [2019-11-28 17:26:57,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7119cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:26:57, skipping insertion in model container [2019-11-28 17:26:57,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:26:57" (3/3) ... [2019-11-28 17:26:57,201 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product36.cil.c [2019-11-28 17:26:57,211 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 17:26:57,218 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-28 17:26:57,232 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-28 17:26:57,255 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 17:26:57,255 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 17:26:57,256 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 17:26:57,256 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 17:26:57,257 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 17:26:57,257 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 17:26:57,257 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 17:26:57,257 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 17:26:57,273 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2019-11-28 17:26:57,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 17:26:57,281 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:26:57,282 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:26:57,282 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:26:57,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:26:57,288 INFO L82 PathProgramCache]: Analyzing trace with hash -502845476, now seen corresponding path program 1 times [2019-11-28 17:26:57,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:26:57,296 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318591669] [2019-11-28 17:26:57,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:26:57,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:26:57,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:26:57,591 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318591669] [2019-11-28 17:26:57,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:26:57,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 17:26:57,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229632403] [2019-11-28 17:26:57,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 17:26:57,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:26:57,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 17:26:57,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 17:26:57,614 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 2 states. [2019-11-28 17:26:57,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:26:57,656 INFO L93 Difference]: Finished difference Result 154 states and 233 transitions. [2019-11-28 17:26:57,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 17:26:57,658 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-11-28 17:26:57,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:26:57,669 INFO L225 Difference]: With dead ends: 154 [2019-11-28 17:26:57,670 INFO L226 Difference]: Without dead ends: 76 [2019-11-28 17:26:57,673 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 17:26:57,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-11-28 17:26:57,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2019-11-28 17:26:57,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-11-28 17:26:57,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 108 transitions. [2019-11-28 17:26:57,727 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 108 transitions. Word has length 16 [2019-11-28 17:26:57,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:26:57,727 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 108 transitions. [2019-11-28 17:26:57,728 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 17:26:57,729 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 108 transitions. [2019-11-28 17:26:57,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 17:26:57,730 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:26:57,731 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:26:57,731 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:26:57,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:26:57,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1549602373, now seen corresponding path program 1 times [2019-11-28 17:26:57,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:26:57,733 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285648043] [2019-11-28 17:26:57,733 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:26:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:26:57,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:26:57,875 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285648043] [2019-11-28 17:26:57,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:26:57,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:26:57,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509046734] [2019-11-28 17:26:57,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:26:57,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:26:57,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:26:57,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:26:57,880 INFO L87 Difference]: Start difference. First operand 76 states and 108 transitions. Second operand 3 states. [2019-11-28 17:26:57,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:26:57,905 INFO L93 Difference]: Finished difference Result 76 states and 108 transitions. [2019-11-28 17:26:57,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:26:57,905 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-28 17:26:57,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:26:57,908 INFO L225 Difference]: With dead ends: 76 [2019-11-28 17:26:57,908 INFO L226 Difference]: Without dead ends: 36 [2019-11-28 17:26:57,910 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:26:57,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-28 17:26:57,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-28 17:26:57,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-28 17:26:57,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2019-11-28 17:26:57,922 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 17 [2019-11-28 17:26:57,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:26:57,923 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2019-11-28 17:26:57,923 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:26:57,923 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2019-11-28 17:26:57,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-28 17:26:57,925 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:26:57,925 INFO L410 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] [2019-11-28 17:26:57,926 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:26:57,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:26:57,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1499295122, now seen corresponding path program 1 times [2019-11-28 17:26:57,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:26:57,928 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401060005] [2019-11-28 17:26:57,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:26:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:26:58,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:26:58,032 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401060005] [2019-11-28 17:26:58,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:26:58,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:26:58,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954008739] [2019-11-28 17:26:58,034 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:26:58,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:26:58,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:26:58,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:26:58,035 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 3 states. [2019-11-28 17:26:58,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:26:58,073 INFO L93 Difference]: Finished difference Result 96 states and 141 transitions. [2019-11-28 17:26:58,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:26:58,074 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-11-28 17:26:58,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:26:58,075 INFO L225 Difference]: With dead ends: 96 [2019-11-28 17:26:58,075 INFO L226 Difference]: Without dead ends: 66 [2019-11-28 17:26:58,076 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:26:58,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-11-28 17:26:58,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2019-11-28 17:26:58,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-11-28 17:26:58,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 91 transitions. [2019-11-28 17:26:58,086 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 91 transitions. Word has length 22 [2019-11-28 17:26:58,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:26:58,088 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 91 transitions. [2019-11-28 17:26:58,088 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:26:58,088 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 91 transitions. [2019-11-28 17:26:58,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-28 17:26:58,089 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:26:58,089 INFO L410 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] [2019-11-28 17:26:58,090 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:26:58,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:26:58,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1870150441, now seen corresponding path program 1 times [2019-11-28 17:26:58,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:26:58,092 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22429067] [2019-11-28 17:26:58,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:26:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:26:58,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:26:58,209 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22429067] [2019-11-28 17:26:58,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:26:58,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 17:26:58,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140009874] [2019-11-28 17:26:58,211 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:26:58,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:26:58,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:26:58,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:26:58,213 INFO L87 Difference]: Start difference. First operand 62 states and 91 transitions. Second operand 3 states. [2019-11-28 17:26:58,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:26:58,283 INFO L93 Difference]: Finished difference Result 159 states and 238 transitions. [2019-11-28 17:26:58,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:26:58,287 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-11-28 17:26:58,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:26:58,290 INFO L225 Difference]: With dead ends: 159 [2019-11-28 17:26:58,290 INFO L226 Difference]: Without dead ends: 103 [2019-11-28 17:26:58,291 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:26:58,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-11-28 17:26:58,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2019-11-28 17:26:58,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-11-28 17:26:58,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 147 transitions. [2019-11-28 17:26:58,319 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 147 transitions. Word has length 23 [2019-11-28 17:26:58,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:26:58,319 INFO L462 AbstractCegarLoop]: Abstraction has 101 states and 147 transitions. [2019-11-28 17:26:58,319 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:26:58,319 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 147 transitions. [2019-11-28 17:26:58,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-28 17:26:58,320 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:26:58,321 INFO L410 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] [2019-11-28 17:26:58,321 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:26:58,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:26:58,321 INFO L82 PathProgramCache]: Analyzing trace with hash 944519591, now seen corresponding path program 1 times [2019-11-28 17:26:58,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:26:58,322 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626008776] [2019-11-28 17:26:58,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:26:58,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:26:58,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:26:58,431 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626008776] [2019-11-28 17:26:58,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:26:58,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 17:26:58,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441936636] [2019-11-28 17:26:58,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:26:58,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:26:58,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:26:58,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:26:58,433 INFO L87 Difference]: Start difference. First operand 101 states and 147 transitions. Second operand 5 states. [2019-11-28 17:26:58,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:26:58,543 INFO L93 Difference]: Finished difference Result 369 states and 545 transitions. [2019-11-28 17:26:58,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 17:26:58,544 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-28 17:26:58,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:26:58,547 INFO L225 Difference]: With dead ends: 369 [2019-11-28 17:26:58,547 INFO L226 Difference]: Without dead ends: 274 [2019-11-28 17:26:58,548 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-28 17:26:58,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2019-11-28 17:26:58,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 182. [2019-11-28 17:26:58,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-11-28 17:26:58,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 256 transitions. [2019-11-28 17:26:58,575 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 256 transitions. Word has length 25 [2019-11-28 17:26:58,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:26:58,575 INFO L462 AbstractCegarLoop]: Abstraction has 182 states and 256 transitions. [2019-11-28 17:26:58,576 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:26:58,576 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 256 transitions. [2019-11-28 17:26:58,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-28 17:26:58,577 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:26:58,577 INFO L410 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] [2019-11-28 17:26:58,578 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:26:58,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:26:58,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1014789399, now seen corresponding path program 1 times [2019-11-28 17:26:58,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:26:58,579 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112219065] [2019-11-28 17:26:58,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:26:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:26:58,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:26:58,649 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112219065] [2019-11-28 17:26:58,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:26:58,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 17:26:58,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233837009] [2019-11-28 17:26:58,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:26:58,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:26:58,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:26:58,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:26:58,653 INFO L87 Difference]: Start difference. First operand 182 states and 256 transitions. Second operand 5 states. [2019-11-28 17:26:58,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:26:58,797 INFO L93 Difference]: Finished difference Result 368 states and 530 transitions. [2019-11-28 17:26:58,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 17:26:58,797 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-11-28 17:26:58,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:26:58,800 INFO L225 Difference]: With dead ends: 368 [2019-11-28 17:26:58,800 INFO L226 Difference]: Without dead ends: 366 [2019-11-28 17:26:58,801 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-28 17:26:58,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2019-11-28 17:26:58,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 182. [2019-11-28 17:26:58,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-11-28 17:26:58,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 254 transitions. [2019-11-28 17:26:58,821 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 254 transitions. Word has length 26 [2019-11-28 17:26:58,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:26:58,821 INFO L462 AbstractCegarLoop]: Abstraction has 182 states and 254 transitions. [2019-11-28 17:26:58,821 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:26:58,822 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 254 transitions. [2019-11-28 17:26:58,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-28 17:26:58,823 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:26:58,824 INFO L410 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, 1, 1, 1] [2019-11-28 17:26:58,824 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:26:58,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:26:58,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1944189962, now seen corresponding path program 1 times [2019-11-28 17:26:58,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:26:58,825 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135478543] [2019-11-28 17:26:58,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:26:58,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:26:58,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:26:58,883 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135478543] [2019-11-28 17:26:58,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:26:58,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 17:26:58,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987020404] [2019-11-28 17:26:58,884 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:26:58,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:26:58,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:26:58,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:26:58,885 INFO L87 Difference]: Start difference. First operand 182 states and 254 transitions. Second operand 5 states. [2019-11-28 17:26:58,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:26:58,955 INFO L93 Difference]: Finished difference Result 505 states and 702 transitions. [2019-11-28 17:26:58,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 17:26:58,956 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-11-28 17:26:58,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:26:58,959 INFO L225 Difference]: With dead ends: 505 [2019-11-28 17:26:58,959 INFO L226 Difference]: Without dead ends: 329 [2019-11-28 17:26:58,960 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-28 17:26:58,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2019-11-28 17:26:58,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 194. [2019-11-28 17:26:58,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2019-11-28 17:26:58,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 266 transitions. [2019-11-28 17:26:58,979 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 266 transitions. Word has length 30 [2019-11-28 17:26:58,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:26:58,979 INFO L462 AbstractCegarLoop]: Abstraction has 194 states and 266 transitions. [2019-11-28 17:26:58,979 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:26:58,980 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 266 transitions. [2019-11-28 17:26:58,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-28 17:26:58,981 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:26:58,981 INFO L410 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, 1, 1, 1] [2019-11-28 17:26:58,982 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:26:58,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:26:58,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1551162952, now seen corresponding path program 1 times [2019-11-28 17:26:58,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:26:58,983 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892497231] [2019-11-28 17:26:58,983 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:26:58,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:26:59,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:26:59,039 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892497231] [2019-11-28 17:26:59,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:26:59,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 17:26:59,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664515465] [2019-11-28 17:26:59,041 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:26:59,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:26:59,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:26:59,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:26:59,042 INFO L87 Difference]: Start difference. First operand 194 states and 266 transitions. Second operand 5 states. [2019-11-28 17:26:59,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:26:59,153 INFO L93 Difference]: Finished difference Result 479 states and 651 transitions. [2019-11-28 17:26:59,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 17:26:59,153 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-11-28 17:26:59,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:26:59,155 INFO L225 Difference]: With dead ends: 479 [2019-11-28 17:26:59,156 INFO L226 Difference]: Without dead ends: 291 [2019-11-28 17:26:59,157 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-28 17:26:59,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2019-11-28 17:26:59,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 159. [2019-11-28 17:26:59,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-11-28 17:26:59,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 214 transitions. [2019-11-28 17:26:59,172 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 214 transitions. Word has length 30 [2019-11-28 17:26:59,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:26:59,173 INFO L462 AbstractCegarLoop]: Abstraction has 159 states and 214 transitions. [2019-11-28 17:26:59,173 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:26:59,173 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 214 transitions. [2019-11-28 17:26:59,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-28 17:26:59,174 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:26:59,174 INFO L410 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, 1, 1, 1] [2019-11-28 17:26:59,175 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:26:59,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:26:59,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1809328390, now seen corresponding path program 1 times [2019-11-28 17:26:59,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:26:59,175 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769506158] [2019-11-28 17:26:59,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:26:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:26:59,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:26:59,229 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769506158] [2019-11-28 17:26:59,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:26:59,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 17:26:59,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784035534] [2019-11-28 17:26:59,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:26:59,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:26:59,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:26:59,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:26:59,231 INFO L87 Difference]: Start difference. First operand 159 states and 214 transitions. Second operand 5 states. [2019-11-28 17:26:59,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:26:59,362 INFO L93 Difference]: Finished difference Result 420 states and 588 transitions. [2019-11-28 17:26:59,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 17:26:59,363 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-11-28 17:26:59,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:26:59,365 INFO L225 Difference]: With dead ends: 420 [2019-11-28 17:26:59,365 INFO L226 Difference]: Without dead ends: 315 [2019-11-28 17:26:59,366 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-28 17:26:59,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2019-11-28 17:26:59,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 236. [2019-11-28 17:26:59,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2019-11-28 17:26:59,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 315 transitions. [2019-11-28 17:26:59,391 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 315 transitions. Word has length 30 [2019-11-28 17:26:59,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:26:59,392 INFO L462 AbstractCegarLoop]: Abstraction has 236 states and 315 transitions. [2019-11-28 17:26:59,392 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:26:59,392 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 315 transitions. [2019-11-28 17:26:59,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-28 17:26:59,398 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:26:59,399 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-28 17:26:59,399 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:26:59,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:26:59,400 INFO L82 PathProgramCache]: Analyzing trace with hash 61594744, now seen corresponding path program 1 times [2019-11-28 17:26:59,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:26:59,400 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465863318] [2019-11-28 17:26:59,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:26:59,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:26:59,511 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:26:59,512 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465863318] [2019-11-28 17:26:59,512 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534003974] [2019-11-28 17:26:59,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:26:59,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:26:59,753 INFO L264 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 17:26:59,762 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:26:59,812 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:26:59,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 17:26:59,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-11-28 17:26:59,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781292485] [2019-11-28 17:26:59,816 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 17:26:59,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:26:59,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 17:26:59,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 17:26:59,818 INFO L87 Difference]: Start difference. First operand 236 states and 315 transitions. Second operand 6 states. [2019-11-28 17:27:00,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:00,062 INFO L93 Difference]: Finished difference Result 699 states and 959 transitions. [2019-11-28 17:27:00,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 17:27:00,063 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2019-11-28 17:27:00,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:00,066 INFO L225 Difference]: With dead ends: 699 [2019-11-28 17:27:00,067 INFO L226 Difference]: Without dead ends: 517 [2019-11-28 17:27:00,068 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2019-11-28 17:27:00,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2019-11-28 17:27:00,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 321. [2019-11-28 17:27:00,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2019-11-28 17:27:00,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 433 transitions. [2019-11-28 17:27:00,102 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 433 transitions. Word has length 45 [2019-11-28 17:27:00,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:00,103 INFO L462 AbstractCegarLoop]: Abstraction has 321 states and 433 transitions. [2019-11-28 17:27:00,103 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 17:27:00,103 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 433 transitions. [2019-11-28 17:27:00,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-11-28 17:27:00,105 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:00,105 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:27:00,312 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:27:00,312 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:00,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:00,312 INFO L82 PathProgramCache]: Analyzing trace with hash -594503994, now seen corresponding path program 2 times [2019-11-28 17:27:00,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:00,314 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18051602] [2019-11-28 17:27:00,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 17:27:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 17:27:00,498 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 17:27:00,498 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 17:27:00,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:27:00 BoogieIcfgContainer [2019-11-28 17:27:00,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 17:27:00,712 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 17:27:00,712 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 17:27:00,713 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 17:27:00,713 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:26:57" (3/4) ... [2019-11-28 17:27:00,716 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 17:27:00,845 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 17:27:00,845 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 17:27:00,847 INFO L168 Benchmark]: Toolchain (without parser) took 5265.12 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 227.5 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -127.7 MB). Peak memory consumption was 99.8 MB. Max. memory is 11.5 GB. [2019-11-28 17:27:00,848 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:27:00,849 INFO L168 Benchmark]: CACSL2BoogieTranslator took 675.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -155.4 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2019-11-28 17:27:00,850 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-28 17:27:00,850 INFO L168 Benchmark]: Boogie Preprocessor took 38.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:27:00,850 INFO L168 Benchmark]: RCFGBuilder took 821.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 58.9 MB). Peak memory consumption was 58.9 MB. Max. memory is 11.5 GB. [2019-11-28 17:27:00,851 INFO L168 Benchmark]: TraceAbstraction took 3517.88 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 98.0 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -62.8 MB). Peak memory consumption was 35.3 MB. Max. memory is 11.5 GB. [2019-11-28 17:27:00,851 INFO L168 Benchmark]: Witness Printer took 132.92 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2019-11-28 17:27:00,854 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 675.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -155.4 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 73.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 821.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 58.9 MB). Peak memory consumption was 58.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3517.88 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 98.0 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -62.8 MB). Peak memory consumption was 35.3 MB. Max. memory is 11.5 GB. * Witness Printer took 132.92 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 437]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L123] int pumpRunning = 0; [L124] int systemActive = 1; [L299] int cleanupTimeShifts = 4; [L611] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L809] int waterLevel = 1; [L810] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L375] int retValue_acc ; [L376] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L424] int retValue_acc ; [L427] retValue_acc = 1 [L428] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L382] tmp = valid_product() [L384] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L47] int splverifierCounter ; [L48] int tmp ; [L49] int tmp___0 ; [L50] int tmp___1 ; [L51] int tmp___2 ; [L54] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L56] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L58] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L64] tmp = __VERIFIER_nondet_int() [L66] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L827] COND TRUE waterLevel < 2 [L828] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) [L294] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L131] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L138] COND TRUE \read(systemActive) [L160] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L163] COND TRUE ! pumpRunning [L257] int retValue_acc ; [L258] int tmp ; [L259] int tmp___0 ; [L889] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L892] COND FALSE !(waterLevel < 2) [L896] retValue_acc = 0 [L897] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L263] tmp = isHighWaterSensorDry() [L265] COND FALSE !(\read(tmp)) [L268] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L270] retValue_acc = tmp___0 [L271] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L165] tmp = isHighWaterLevel() [L167] COND TRUE \read(tmp) [L188] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L904] int tmp ; [L905] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L909] tmp = getWaterLevel() [L911] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L56] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L58] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) [L294] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L131] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L815] COND TRUE waterLevel > 0 [L816] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L138] COND TRUE \read(systemActive) [L160] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L163] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L904] int tmp ; [L905] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L909] tmp = getWaterLevel() [L911] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L56] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L58] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) [L294] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L131] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L815] COND TRUE waterLevel > 0 [L816] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L138] COND TRUE \read(systemActive) [L160] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L163] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L904] int tmp ; [L905] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L909] tmp = getWaterLevel() [L911] COND TRUE tmp == 0 [L212] int retValue_acc ; [L215] retValue_acc = pumpRunning [L216] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L913] tmp___0 = isPumpRunning() [L915] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L437] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 3 error locations. Result: UNSAFE, OverallTime: 3.2s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 794 SDtfs, 1113 SDslu, 1284 SDs, 0 SdLazy, 203 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=321occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 824 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 369 NumberOfCodeBlocks, 369 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 298 ConstructedInterpolants, 0 QuantifiedInterpolants, 17038 SizeOfPredicates, 4 NumberOfNonLiveVariables, 379 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 22/28 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...