./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d 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_1.3.100.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_spec2_product33.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 b5076d679b37839f733750e31fc3798a3b068ae0 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-9a8b2e8 [2020-10-20 01:42:25,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:42:25,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:42:25,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:42:25,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:42:25,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:42:25,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:42:25,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:42:25,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:42:25,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:42:25,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:42:25,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:42:25,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:42:25,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:42:25,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:42:25,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:42:25,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:42:25,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:42:25,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:42:25,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:42:25,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:42:25,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:42:25,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:42:25,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:42:25,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:42:25,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:42:25,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:42:25,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:42:25,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:42:25,290 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:42:25,290 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:42:25,291 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:42:25,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:42:25,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:42:25,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:42:25,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:42:25,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:42:25,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:42:25,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:42:25,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:42:25,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:42:25,297 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:42:25,322 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:42:25,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:42:25,324 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:42:25,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:42:25,324 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:42:25,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:42:25,325 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:42:25,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:42:25,325 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:42:25,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:42:25,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:42:25,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:42:25,326 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:42:25,326 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:42:25,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:42:25,326 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:42:25,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:42:25,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:42:25,327 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:42:25,327 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:42:25,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:42:25,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:42:25,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:42:25,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:42:25,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:42:25,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:42:25,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:42:25,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:42:25,329 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:42:25,329 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(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 -> b5076d679b37839f733750e31fc3798a3b068ae0 [2020-10-20 01:42:25,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:42:25,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:42:25,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:42:25,578 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:42:25,580 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:42:25,581 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2020-10-20 01:42:25,660 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5b1cfae0/a8d235b876d64fa6b4f0444ce5bee0ae/FLAG82cc71965 [2020-10-20 01:42:26,172 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:42:26,172 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2020-10-20 01:42:26,185 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5b1cfae0/a8d235b876d64fa6b4f0444ce5bee0ae/FLAG82cc71965 [2020-10-20 01:42:26,471 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5b1cfae0/a8d235b876d64fa6b4f0444ce5bee0ae [2020-10-20 01:42:26,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:42:26,480 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:42:26,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:42:26,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:42:26,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:42:26,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:42:26" (1/1) ... [2020-10-20 01:42:26,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e037be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:26, skipping insertion in model container [2020-10-20 01:42:26,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:42:26" (1/1) ... [2020-10-20 01:42:26,497 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:42:26,539 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:42:27,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:42:27,018 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:42:27,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:42:27,144 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:42:27,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:27 WrapperNode [2020-10-20 01:42:27,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:42:27,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:42:27,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:42:27,146 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:42:27,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:27" (1/1) ... [2020-10-20 01:42:27,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:27" (1/1) ... [2020-10-20 01:42:27,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:42:27,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:42:27,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:42:27,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:42:27,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:27" (1/1) ... [2020-10-20 01:42:27,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:27" (1/1) ... [2020-10-20 01:42:27,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:27" (1/1) ... [2020-10-20 01:42:27,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:27" (1/1) ... [2020-10-20 01:42:27,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:27" (1/1) ... [2020-10-20 01:42:27,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:27" (1/1) ... [2020-10-20 01:42:27,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:27" (1/1) ... [2020-10-20 01:42:27,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:42:27,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:42:27,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:42:27,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:42:27,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:27" (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 [2020-10-20 01:42:27,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:42:27,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:42:27,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:42:27,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:42:28,242 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:42:28,242 INFO L298 CfgBuilder]: Removed 104 assume(true) statements. [2020-10-20 01:42:28,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:42:28 BoogieIcfgContainer [2020-10-20 01:42:28,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:42:28,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:42:28,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:42:28,249 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:42:28,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:42:26" (1/3) ... [2020-10-20 01:42:28,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c79e31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:42:28, skipping insertion in model container [2020-10-20 01:42:28,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:27" (2/3) ... [2020-10-20 01:42:28,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c79e31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:42:28, skipping insertion in model container [2020-10-20 01:42:28,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:42:28" (3/3) ... [2020-10-20 01:42:28,253 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product33.cil.c [2020-10-20 01:42:28,265 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:42:28,272 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:42:28,299 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:42:28,321 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:42:28,321 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:42:28,321 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:42:28,322 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:42:28,322 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:42:28,322 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:42:28,322 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:42:28,323 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:42:28,339 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2020-10-20 01:42:28,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 01:42:28,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:28,346 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:28,346 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:28,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:28,351 INFO L82 PathProgramCache]: Analyzing trace with hash 495161476, now seen corresponding path program 1 times [2020-10-20 01:42:28,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:28,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001945016] [2020-10-20 01:42:28,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:28,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:28,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001945016] [2020-10-20 01:42:28,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:28,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:42:28,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352390588] [2020-10-20 01:42:28,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:42:28,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:28,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:42:28,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:42:28,688 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 2 states. [2020-10-20 01:42:28,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:28,737 INFO L93 Difference]: Finished difference Result 160 states and 243 transitions. [2020-10-20 01:42:28,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:42:28,738 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-20 01:42:28,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:28,758 INFO L225 Difference]: With dead ends: 160 [2020-10-20 01:42:28,758 INFO L226 Difference]: Without dead ends: 78 [2020-10-20 01:42:28,764 INFO L677 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 [2020-10-20 01:42:28,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-20 01:42:28,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-10-20 01:42:28,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-20 01:42:28,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 112 transitions. [2020-10-20 01:42:28,845 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 112 transitions. Word has length 18 [2020-10-20 01:42:28,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:28,845 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 112 transitions. [2020-10-20 01:42:28,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:42:28,847 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 112 transitions. [2020-10-20 01:42:28,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 01:42:28,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:28,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:28,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:42:28,849 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:28,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:28,850 INFO L82 PathProgramCache]: Analyzing trace with hash 276325507, now seen corresponding path program 1 times [2020-10-20 01:42:28,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:28,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050798604] [2020-10-20 01:42:28,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:28,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:28,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050798604] [2020-10-20 01:42:28,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:28,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:42:28,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977651153] [2020-10-20 01:42:28,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:28,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:28,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:28,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:28,985 INFO L87 Difference]: Start difference. First operand 78 states and 112 transitions. Second operand 3 states. [2020-10-20 01:42:28,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:28,996 INFO L93 Difference]: Finished difference Result 78 states and 112 transitions. [2020-10-20 01:42:28,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:28,997 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-20 01:42:28,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:28,998 INFO L225 Difference]: With dead ends: 78 [2020-10-20 01:42:28,998 INFO L226 Difference]: Without dead ends: 36 [2020-10-20 01:42:28,999 INFO L677 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 [2020-10-20 01:42:29,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-20 01:42:29,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-20 01:42:29,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-20 01:42:29,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2020-10-20 01:42:29,005 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 19 [2020-10-20 01:42:29,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:29,005 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2020-10-20 01:42:29,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:29,005 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2020-10-20 01:42:29,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:42:29,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:29,007 INFO L422 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] [2020-10-20 01:42:29,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:42:29,007 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:29,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:29,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1153900874, now seen corresponding path program 1 times [2020-10-20 01:42:29,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:29,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596584163] [2020-10-20 01:42:29,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:29,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:29,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596584163] [2020-10-20 01:42:29,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:29,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:42:29,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189034924] [2020-10-20 01:42:29,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:42:29,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:29,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:42:29,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:42:29,164 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 6 states. [2020-10-20 01:42:29,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:29,378 INFO L93 Difference]: Finished difference Result 65 states and 95 transitions. [2020-10-20 01:42:29,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:42:29,379 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-10-20 01:42:29,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:29,380 INFO L225 Difference]: With dead ends: 65 [2020-10-20 01:42:29,382 INFO L226 Difference]: Without dead ends: 36 [2020-10-20 01:42:29,383 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:42:29,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-20 01:42:29,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-20 01:42:29,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-20 01:42:29,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 50 transitions. [2020-10-20 01:42:29,388 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 50 transitions. Word has length 24 [2020-10-20 01:42:29,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:29,389 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 50 transitions. [2020-10-20 01:42:29,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:42:29,389 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2020-10-20 01:42:29,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-20 01:42:29,390 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:29,390 INFO L422 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] [2020-10-20 01:42:29,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:42:29,390 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:29,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:29,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1264883623, now seen corresponding path program 1 times [2020-10-20 01:42:29,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:29,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205117514] [2020-10-20 01:42:29,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:29,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:29,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:29,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205117514] [2020-10-20 01:42:29,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:29,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:42:29,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11446849] [2020-10-20 01:42:29,451 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:29,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:29,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:29,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:29,452 INFO L87 Difference]: Start difference. First operand 36 states and 50 transitions. Second operand 3 states. [2020-10-20 01:42:29,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:29,498 INFO L93 Difference]: Finished difference Result 87 states and 125 transitions. [2020-10-20 01:42:29,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:29,499 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-10-20 01:42:29,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:29,500 INFO L225 Difference]: With dead ends: 87 [2020-10-20 01:42:29,500 INFO L226 Difference]: Without dead ends: 58 [2020-10-20 01:42:29,501 INFO L677 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 [2020-10-20 01:42:29,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-20 01:42:29,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2020-10-20 01:42:29,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-20 01:42:29,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 79 transitions. [2020-10-20 01:42:29,510 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 79 transitions. Word has length 25 [2020-10-20 01:42:29,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:29,511 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 79 transitions. [2020-10-20 01:42:29,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:29,511 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 79 transitions. [2020-10-20 01:42:29,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-20 01:42:29,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:29,512 INFO L422 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, 1] [2020-10-20 01:42:29,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:42:29,513 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:29,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:29,513 INFO L82 PathProgramCache]: Analyzing trace with hash -703728504, now seen corresponding path program 1 times [2020-10-20 01:42:29,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:29,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907754863] [2020-10-20 01:42:29,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:29,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:29,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907754863] [2020-10-20 01:42:29,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:29,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:42:29,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938665290] [2020-10-20 01:42:29,592 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:29,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:29,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:29,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:29,593 INFO L87 Difference]: Start difference. First operand 56 states and 79 transitions. Second operand 5 states. [2020-10-20 01:42:29,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:29,649 INFO L93 Difference]: Finished difference Result 145 states and 205 transitions. [2020-10-20 01:42:29,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:42:29,650 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-10-20 01:42:29,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:29,651 INFO L225 Difference]: With dead ends: 145 [2020-10-20 01:42:29,652 INFO L226 Difference]: Without dead ends: 96 [2020-10-20 01:42:29,652 INFO L677 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 [2020-10-20 01:42:29,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-10-20 01:42:29,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 59. [2020-10-20 01:42:29,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-20 01:42:29,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 82 transitions. [2020-10-20 01:42:29,662 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 82 transitions. Word has length 31 [2020-10-20 01:42:29,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:29,663 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 82 transitions. [2020-10-20 01:42:29,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:29,663 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 82 transitions. [2020-10-20 01:42:29,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-20 01:42:29,664 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:29,664 INFO L422 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, 1] [2020-10-20 01:42:29,664 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:42:29,665 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:29,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:29,665 INFO L82 PathProgramCache]: Analyzing trace with hash 229735205, now seen corresponding path program 1 times [2020-10-20 01:42:29,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:29,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671591283] [2020-10-20 01:42:29,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:29,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:29,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671591283] [2020-10-20 01:42:29,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:29,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:42:29,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852738027] [2020-10-20 01:42:29,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:29,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:29,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:29,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:29,800 INFO L87 Difference]: Start difference. First operand 59 states and 82 transitions. Second operand 5 states. [2020-10-20 01:42:29,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:29,898 INFO L93 Difference]: Finished difference Result 275 states and 393 transitions. [2020-10-20 01:42:29,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 01:42:29,899 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-10-20 01:42:29,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:29,901 INFO L225 Difference]: With dead ends: 275 [2020-10-20 01:42:29,901 INFO L226 Difference]: Without dead ends: 223 [2020-10-20 01:42:29,902 INFO L677 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 [2020-10-20 01:42:29,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2020-10-20 01:42:29,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 103. [2020-10-20 01:42:29,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-10-20 01:42:29,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 142 transitions. [2020-10-20 01:42:29,932 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 142 transitions. Word has length 31 [2020-10-20 01:42:29,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:29,932 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 142 transitions. [2020-10-20 01:42:29,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:29,932 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 142 transitions. [2020-10-20 01:42:29,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-20 01:42:29,934 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:29,934 INFO L422 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, 1, 1] [2020-10-20 01:42:29,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 01:42:29,934 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:29,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:29,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1892298141, now seen corresponding path program 1 times [2020-10-20 01:42:29,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:29,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711330864] [2020-10-20 01:42:29,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:29,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:29,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711330864] [2020-10-20 01:42:29,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:29,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:42:29,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847460144] [2020-10-20 01:42:29,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:29,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:29,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:29,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:29,995 INFO L87 Difference]: Start difference. First operand 103 states and 142 transitions. Second operand 5 states. [2020-10-20 01:42:30,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:30,115 INFO L93 Difference]: Finished difference Result 376 states and 523 transitions. [2020-10-20 01:42:30,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 01:42:30,116 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-10-20 01:42:30,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:30,118 INFO L225 Difference]: With dead ends: 376 [2020-10-20 01:42:30,118 INFO L226 Difference]: Without dead ends: 280 [2020-10-20 01:42:30,119 INFO L677 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 [2020-10-20 01:42:30,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-10-20 01:42:30,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 102. [2020-10-20 01:42:30,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-20 01:42:30,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 139 transitions. [2020-10-20 01:42:30,135 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 139 transitions. Word has length 32 [2020-10-20 01:42:30,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:30,135 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 139 transitions. [2020-10-20 01:42:30,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:30,136 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 139 transitions. [2020-10-20 01:42:30,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-20 01:42:30,137 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:30,137 INFO L422 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, 1, 1] [2020-10-20 01:42:30,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 01:42:30,138 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:30,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:30,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1659899010, now seen corresponding path program 1 times [2020-10-20 01:42:30,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:30,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245201126] [2020-10-20 01:42:30,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:30,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:30,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245201126] [2020-10-20 01:42:30,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:30,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:42:30,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985215253] [2020-10-20 01:42:30,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:42:30,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:30,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:42:30,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:42:30,188 INFO L87 Difference]: Start difference. First operand 102 states and 139 transitions. Second operand 4 states. [2020-10-20 01:42:30,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:30,236 INFO L93 Difference]: Finished difference Result 243 states and 331 transitions. [2020-10-20 01:42:30,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:42:30,237 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-10-20 01:42:30,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:30,238 INFO L225 Difference]: With dead ends: 243 [2020-10-20 01:42:30,238 INFO L226 Difference]: Without dead ends: 148 [2020-10-20 01:42:30,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:30,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-20 01:42:30,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 106. [2020-10-20 01:42:30,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-20 01:42:30,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 143 transitions. [2020-10-20 01:42:30,252 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 143 transitions. Word has length 32 [2020-10-20 01:42:30,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:30,253 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 143 transitions. [2020-10-20 01:42:30,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:42:30,253 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 143 transitions. [2020-10-20 01:42:30,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-20 01:42:30,254 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:30,254 INFO L422 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, 1, 1] [2020-10-20 01:42:30,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 01:42:30,255 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:30,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:30,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1073092996, now seen corresponding path program 1 times [2020-10-20 01:42:30,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:30,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217951778] [2020-10-20 01:42:30,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:30,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:30,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217951778] [2020-10-20 01:42:30,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:30,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:42:30,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537180855] [2020-10-20 01:42:30,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:30,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:30,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:30,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:30,339 INFO L87 Difference]: Start difference. First operand 106 states and 143 transitions. Second operand 3 states. [2020-10-20 01:42:30,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:30,373 INFO L93 Difference]: Finished difference Result 253 states and 341 transitions. [2020-10-20 01:42:30,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:30,374 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-10-20 01:42:30,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:30,375 INFO L225 Difference]: With dead ends: 253 [2020-10-20 01:42:30,375 INFO L226 Difference]: Without dead ends: 154 [2020-10-20 01:42:30,376 INFO L677 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 [2020-10-20 01:42:30,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-20 01:42:30,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-10-20 01:42:30,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-20 01:42:30,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 201 transitions. [2020-10-20 01:42:30,398 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 201 transitions. Word has length 32 [2020-10-20 01:42:30,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:30,398 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 201 transitions. [2020-10-20 01:42:30,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:30,398 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 201 transitions. [2020-10-20 01:42:30,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-20 01:42:30,404 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:30,404 INFO L422 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, 1, 1, 1] [2020-10-20 01:42:30,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 01:42:30,406 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:30,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:30,406 INFO L82 PathProgramCache]: Analyzing trace with hash -389810492, now seen corresponding path program 1 times [2020-10-20 01:42:30,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:30,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193453485] [2020-10-20 01:42:30,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:30,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:30,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:30,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193453485] [2020-10-20 01:42:30,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:30,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:42:30,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099163188] [2020-10-20 01:42:30,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:30,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:30,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:30,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:30,503 INFO L87 Difference]: Start difference. First operand 154 states and 201 transitions. Second operand 3 states. [2020-10-20 01:42:30,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:30,542 INFO L93 Difference]: Finished difference Result 221 states and 291 transitions. [2020-10-20 01:42:30,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:30,545 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-10-20 01:42:30,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:30,547 INFO L225 Difference]: With dead ends: 221 [2020-10-20 01:42:30,547 INFO L226 Difference]: Without dead ends: 219 [2020-10-20 01:42:30,548 INFO L677 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 [2020-10-20 01:42:30,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-10-20 01:42:30,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 183. [2020-10-20 01:42:30,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-10-20 01:42:30,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 244 transitions. [2020-10-20 01:42:30,574 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 244 transitions. Word has length 33 [2020-10-20 01:42:30,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:30,574 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 244 transitions. [2020-10-20 01:42:30,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:30,575 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 244 transitions. [2020-10-20 01:42:30,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-20 01:42:30,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:30,577 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1] [2020-10-20 01:42:30,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 01:42:30,578 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:30,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:30,578 INFO L82 PathProgramCache]: Analyzing trace with hash 149557046, now seen corresponding path program 1 times [2020-10-20 01:42:30,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:30,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559642112] [2020-10-20 01:42:30,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:42:30,661 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:42:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:42:30,719 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:42:30,893 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 01:42:30,893 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 01:42:30,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-20 01:42:31,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:42:31 BoogieIcfgContainer [2020-10-20 01:42:31,055 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:42:31,055 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:42:31,055 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:42:31,055 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:42:31,056 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:42:28" (3/4) ... [2020-10-20 01:42:31,058 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 01:42:31,233 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:42:31,233 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:42:31,236 INFO L168 Benchmark]: Toolchain (without parser) took 4759.94 ms. Allocated memory was 35.1 MB in the beginning and 79.2 MB in the end (delta: 44.0 MB). Free memory was 11.4 MB in the beginning and 41.1 MB in the end (delta: -29.8 MB). Peak memory consumption was 34.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:31,236 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 33.0 MB. Free memory was 18.0 MB in the beginning and 17.9 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. [2020-10-20 01:42:31,237 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.93 ms. Allocated memory was 35.1 MB in the beginning and 46.1 MB in the end (delta: 11.0 MB). Free memory was 10.5 MB in the beginning and 23.3 MB in the end (delta: -12.8 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:31,237 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.29 ms. Allocated memory is still 46.1 MB. Free memory was 23.3 MB in the beginning and 20.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:31,238 INFO L168 Benchmark]: Boogie Preprocessor took 60.02 ms. Allocated memory is still 46.1 MB. Free memory was 20.0 MB in the beginning and 17.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:31,238 INFO L168 Benchmark]: RCFGBuilder took 964.64 ms. Allocated memory was 46.1 MB in the beginning and 48.8 MB in the end (delta: 2.6 MB). Free memory was 17.4 MB in the beginning and 13.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:31,239 INFO L168 Benchmark]: TraceAbstraction took 2809.01 ms. Allocated memory was 48.8 MB in the beginning and 74.4 MB in the end (delta: 25.7 MB). Free memory was 13.3 MB in the beginning and 30.4 MB in the end (delta: -17.1 MB). Peak memory consumption was 25.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:31,239 INFO L168 Benchmark]: Witness Printer took 178.52 ms. Allocated memory was 74.4 MB in the beginning and 79.2 MB in the end (delta: 4.7 MB). Free memory was 30.4 MB in the beginning and 41.1 MB in the end (delta: -10.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:31,242 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 33.0 MB. Free memory was 18.0 MB in the beginning and 17.9 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 663.93 ms. Allocated memory was 35.1 MB in the beginning and 46.1 MB in the end (delta: 11.0 MB). Free memory was 10.5 MB in the beginning and 23.3 MB in the end (delta: -12.8 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 73.29 ms. Allocated memory is still 46.1 MB. Free memory was 23.3 MB in the beginning and 20.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 60.02 ms. Allocated memory is still 46.1 MB. Free memory was 20.0 MB in the beginning and 17.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 964.64 ms. Allocated memory was 46.1 MB in the beginning and 48.8 MB in the end (delta: 2.6 MB). Free memory was 17.4 MB in the beginning and 13.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 14.3 GB. * TraceAbstraction took 2809.01 ms. Allocated memory was 48.8 MB in the beginning and 74.4 MB in the end (delta: 25.7 MB). Free memory was 13.3 MB in the beginning and 30.4 MB in the end (delta: -17.1 MB). Peak memory consumption was 25.5 MB. Max. memory is 14.3 GB. * Witness Printer took 178.52 ms. Allocated memory was 74.4 MB in the beginning and 79.2 MB in the end (delta: 4.7 MB). Free memory was 30.4 MB in the beginning and 41.1 MB in the end (delta: -10.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L87] int waterLevel = 1; [L88] int methaneLevelCritical = 0; [L181] int cleanupTimeShifts = 4; [L294] int pumpRunning = 0; [L295] int systemActive = 1; [L681] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L878] int methAndRunningLastTime ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L259] int retValue_acc ; [L260] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L266] tmp = valid_product() [L268] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L883] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L448] int splverifierCounter ; [L449] int tmp ; [L450] int tmp___0 ; [L451] int tmp___1 ; [L452] int tmp___2 ; [L455] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L457] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L459] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L465] tmp = __VERIFIER_nondet_int() [L467] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L105] COND TRUE waterLevel < 2 [L106] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L475] tmp___0 = __VERIFIER_nondet_int() [L477] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L117] COND FALSE !(\read(methaneLevelCritical)) [L120] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L485] tmp___2 = __VERIFIER_nondet_int() [L487] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L302] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L309] COND TRUE \read(systemActive) [L331] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L334] COND TRUE ! pumpRunning [L428] int retValue_acc ; [L429] int tmp ; [L430] int tmp___0 ; [L167] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L170] COND FALSE !(waterLevel < 2) [L174] retValue_acc = 0 [L175] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L434] tmp = isHighWaterSensorDry() [L436] COND FALSE !(\read(tmp)) [L439] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L441] retValue_acc = tmp___0 [L442] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L336] tmp = isHighWaterLevel() [L338] COND TRUE \read(tmp) [L359] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L888] int tmp ; [L889] int tmp___0 ; [L126] int retValue_acc ; [L129] retValue_acc = methaneLevelCritical [L130] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L893] tmp = isMethaneLevelCritical() [L895] COND TRUE \read(tmp) [L383] int retValue_acc ; [L386] retValue_acc = pumpRunning [L387] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L897] tmp___0 = isPumpRunning() [L899] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L900] COND FALSE !(\read(methAndRunningLastTime)) [L905] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L457] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L459] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L465] tmp = __VERIFIER_nondet_int() [L467] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L475] tmp___0 = __VERIFIER_nondet_int() [L477] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L485] tmp___2 = __VERIFIER_nondet_int() [L487] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L302] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L93] COND TRUE waterLevel > 0 [L94] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L309] COND TRUE \read(systemActive) [L331] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L334] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L888] int tmp ; [L889] int tmp___0 ; [L126] int retValue_acc ; [L129] retValue_acc = methaneLevelCritical [L130] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L893] tmp = isMethaneLevelCritical() [L895] COND TRUE \read(tmp) [L383] int retValue_acc ; [L386] retValue_acc = pumpRunning [L387] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L897] tmp___0 = isPumpRunning() [L899] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L900] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L3] __assert_fail("0", "minepump_spec2_product33.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.5s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 659 SDtfs, 742 SDslu, 854 SDs, 0 SdLazy, 108 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=183occurred 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: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 415 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 328 NumberOfCodeBlocks, 328 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 267 ConstructedInterpolants, 0 QuantifiedInterpolants, 15829 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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! Received shutdown request...