./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product43.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_product43.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 a285a3ca3b1510caf096d0e38f1e6e56ffc456f4 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:42:30,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:42:30,231 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:42:30,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:42:30,270 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:42:30,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:42:30,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:42:30,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:42:30,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:42:30,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:42:30,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:42:30,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:42:30,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:42:30,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:42:30,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:42:30,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:42:30,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:42:30,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:42:30,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:42:30,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:42:30,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:42:30,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:42:30,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:42:30,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:42:30,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:42:30,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:42:30,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:42:30,340 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:42:30,341 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:42:30,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:42:30,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:42:30,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:42:30,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:42:30,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:42:30,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:42:30,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:42:30,345 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:42:30,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:42:30,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:42:30,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:42:30,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:42:30,348 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:42:30,370 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:42:30,371 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:42:30,372 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:42:30,372 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:42:30,372 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:42:30,372 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:42:30,373 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:42:30,373 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:42:30,373 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:42:30,373 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:42:30,373 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:42:30,373 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:42:30,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:42:30,374 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:42:30,374 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:42:30,374 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:42:30,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:42:30,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:42:30,375 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:42:30,375 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:42:30,375 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:42:30,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:42:30,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:42:30,376 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:42:30,376 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:42:30,376 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:42:30,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:42:30,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:42:30,377 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:42:30,377 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 -> a285a3ca3b1510caf096d0e38f1e6e56ffc456f4 [2020-10-20 01:42:30,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:42:30,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:42:30,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:42:30,611 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:42:30,613 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:42:30,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2020-10-20 01:42:30,693 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31b9db437/224863b506d94556911395975d749b4a/FLAG14177f03c [2020-10-20 01:42:31,259 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:42:31,260 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2020-10-20 01:42:31,285 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31b9db437/224863b506d94556911395975d749b4a/FLAG14177f03c [2020-10-20 01:42:31,522 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31b9db437/224863b506d94556911395975d749b4a [2020-10-20 01:42:31,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:42:31,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:42:31,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:42:31,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:42:31,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:42:31,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:42:31" (1/1) ... [2020-10-20 01:42:31,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ff30fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:31, skipping insertion in model container [2020-10-20 01:42:31,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:42:31" (1/1) ... [2020-10-20 01:42:31,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:42:31,620 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:42:32,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:42:32,042 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:42:32,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:42:32,206 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:42:32,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:32 WrapperNode [2020-10-20 01:42:32,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:42:32,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:42:32,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:42:32,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:42:32,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:32" (1/1) ... [2020-10-20 01:42:32,244 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:32" (1/1) ... [2020-10-20 01:42:32,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:42:32,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:42:32,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:42:32,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:42:32,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:32" (1/1) ... [2020-10-20 01:42:32,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:32" (1/1) ... [2020-10-20 01:42:32,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:32" (1/1) ... [2020-10-20 01:42:32,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:32" (1/1) ... [2020-10-20 01:42:32,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:32" (1/1) ... [2020-10-20 01:42:32,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:32" (1/1) ... [2020-10-20 01:42:32,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:32" (1/1) ... [2020-10-20 01:42:32,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:42:32,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:42:32,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:42:32,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:42:32,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:32" (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 01:42:32,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:42:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:42:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:42:32,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:42:33,429 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:42:33,429 INFO L298 CfgBuilder]: Removed 126 assume(true) statements. [2020-10-20 01:42:33,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:42:33 BoogieIcfgContainer [2020-10-20 01:42:33,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:42:33,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:42:33,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:42:33,436 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:42:33,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:42:31" (1/3) ... [2020-10-20 01:42:33,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f3602c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:42:33, skipping insertion in model container [2020-10-20 01:42:33,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:32" (2/3) ... [2020-10-20 01:42:33,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f3602c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:42:33, skipping insertion in model container [2020-10-20 01:42:33,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:42:33" (3/3) ... [2020-10-20 01:42:33,440 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product43.cil.c [2020-10-20 01:42:33,453 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:42:33,461 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:42:33,476 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:42:33,502 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:42:33,502 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:42:33,502 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:42:33,503 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:42:33,503 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:42:33,503 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:42:33,503 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:42:33,504 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:42:33,520 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states. [2020-10-20 01:42:33,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 01:42:33,526 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:33,527 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 01:42:33,527 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:33,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:33,534 INFO L82 PathProgramCache]: Analyzing trace with hash -77049212, now seen corresponding path program 1 times [2020-10-20 01:42:33,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:33,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538578560] [2020-10-20 01:42:33,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:33,846 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 01:42:33,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538578560] [2020-10-20 01:42:33,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:33,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:42:33,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823363285] [2020-10-20 01:42:33,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:42:33,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:33,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:42:33,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:42:33,873 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 2 states. [2020-10-20 01:42:33,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:33,907 INFO L93 Difference]: Finished difference Result 182 states and 273 transitions. [2020-10-20 01:42:33,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:42:33,908 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-20 01:42:33,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:33,922 INFO L225 Difference]: With dead ends: 182 [2020-10-20 01:42:33,922 INFO L226 Difference]: Without dead ends: 89 [2020-10-20 01:42:33,926 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 01:42:33,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-10-20 01:42:33,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2020-10-20 01:42:33,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-10-20 01:42:33,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 127 transitions. [2020-10-20 01:42:33,974 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 127 transitions. Word has length 18 [2020-10-20 01:42:33,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:33,975 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 127 transitions. [2020-10-20 01:42:33,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:42:33,975 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions. [2020-10-20 01:42:33,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 01:42:33,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:33,977 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 01:42:33,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:42:33,978 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:33,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:33,978 INFO L82 PathProgramCache]: Analyzing trace with hash -295885181, now seen corresponding path program 1 times [2020-10-20 01:42:33,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:33,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532043254] [2020-10-20 01:42:33,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:34,092 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 01:42:34,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532043254] [2020-10-20 01:42:34,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:34,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:42:34,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357891672] [2020-10-20 01:42:34,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:34,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:34,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:34,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:34,096 INFO L87 Difference]: Start difference. First operand 89 states and 127 transitions. Second operand 3 states. [2020-10-20 01:42:34,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:34,123 INFO L93 Difference]: Finished difference Result 89 states and 127 transitions. [2020-10-20 01:42:34,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:34,125 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-20 01:42:34,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:34,126 INFO L225 Difference]: With dead ends: 89 [2020-10-20 01:42:34,127 INFO L226 Difference]: Without dead ends: 41 [2020-10-20 01:42:34,129 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 01:42:34,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-20 01:42:34,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-20 01:42:34,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-20 01:42:34,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2020-10-20 01:42:34,140 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 19 [2020-10-20 01:42:34,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:34,141 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2020-10-20 01:42:34,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:34,141 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2020-10-20 01:42:34,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:42:34,142 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:34,142 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 01:42:34,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:42:34,143 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:34,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:34,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1417220031, now seen corresponding path program 1 times [2020-10-20 01:42:34,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:34,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120251130] [2020-10-20 01:42:34,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:34,238 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 01:42:34,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120251130] [2020-10-20 01:42:34,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:34,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:42:34,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520215401] [2020-10-20 01:42:34,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:34,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:34,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:34,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:34,242 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand 3 states. [2020-10-20 01:42:34,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:34,296 INFO L93 Difference]: Finished difference Result 109 states and 160 transitions. [2020-10-20 01:42:34,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:34,301 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-20 01:42:34,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:34,302 INFO L225 Difference]: With dead ends: 109 [2020-10-20 01:42:34,302 INFO L226 Difference]: Without dead ends: 75 [2020-10-20 01:42:34,303 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 01:42:34,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-20 01:42:34,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 71. [2020-10-20 01:42:34,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-20 01:42:34,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 104 transitions. [2020-10-20 01:42:34,319 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 104 transitions. Word has length 24 [2020-10-20 01:42:34,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:34,320 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 104 transitions. [2020-10-20 01:42:34,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:34,320 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 104 transitions. [2020-10-20 01:42:34,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-20 01:42:34,322 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:34,322 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 01:42:34,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:42:34,322 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:34,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:34,323 INFO L82 PathProgramCache]: Analyzing trace with hash -462384263, now seen corresponding path program 1 times [2020-10-20 01:42:34,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:34,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253528190] [2020-10-20 01:42:34,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:34,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:34,388 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 01:42:34,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253528190] [2020-10-20 01:42:34,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:34,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:42:34,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548059451] [2020-10-20 01:42:34,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:34,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:34,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:34,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:34,404 INFO L87 Difference]: Start difference. First operand 71 states and 104 transitions. Second operand 3 states. [2020-10-20 01:42:34,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:34,500 INFO L93 Difference]: Finished difference Result 178 states and 267 transitions. [2020-10-20 01:42:34,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:34,501 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-10-20 01:42:34,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:34,505 INFO L225 Difference]: With dead ends: 178 [2020-10-20 01:42:34,506 INFO L226 Difference]: Without dead ends: 114 [2020-10-20 01:42:34,507 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 01:42:34,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-10-20 01:42:34,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 112. [2020-10-20 01:42:34,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-20 01:42:34,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 164 transitions. [2020-10-20 01:42:34,535 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 164 transitions. Word has length 25 [2020-10-20 01:42:34,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:34,538 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 164 transitions. [2020-10-20 01:42:34,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:34,538 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 164 transitions. [2020-10-20 01:42:34,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-20 01:42:34,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:34,539 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] [2020-10-20 01:42:34,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:42:34,542 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:34,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:34,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1738728008, now seen corresponding path program 1 times [2020-10-20 01:42:34,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:34,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772881725] [2020-10-20 01:42:34,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:34,686 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 01:42:34,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772881725] [2020-10-20 01:42:34,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:34,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:42:34,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233611362] [2020-10-20 01:42:34,687 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:34,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:34,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:34,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:34,689 INFO L87 Difference]: Start difference. First operand 112 states and 164 transitions. Second operand 5 states. [2020-10-20 01:42:34,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:34,907 INFO L93 Difference]: Finished difference Result 544 states and 809 transitions. [2020-10-20 01:42:34,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 01:42:34,910 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-20 01:42:34,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:34,915 INFO L225 Difference]: With dead ends: 544 [2020-10-20 01:42:34,915 INFO L226 Difference]: Without dead ends: 439 [2020-10-20 01:42:34,919 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 01:42:34,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-10-20 01:42:34,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 203. [2020-10-20 01:42:34,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-20 01:42:34,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 292 transitions. [2020-10-20 01:42:34,966 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 292 transitions. Word has length 27 [2020-10-20 01:42:34,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:34,967 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 292 transitions. [2020-10-20 01:42:34,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:34,967 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 292 transitions. [2020-10-20 01:42:34,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-20 01:42:34,970 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:34,971 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] [2020-10-20 01:42:34,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:42:34,971 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:34,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:34,971 INFO L82 PathProgramCache]: Analyzing trace with hash 304582848, now seen corresponding path program 1 times [2020-10-20 01:42:34,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:34,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211317651] [2020-10-20 01:42:34,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:35,082 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 01:42:35,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211317651] [2020-10-20 01:42:35,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:35,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:42:35,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968157271] [2020-10-20 01:42:35,084 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:35,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:35,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:35,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:35,089 INFO L87 Difference]: Start difference. First operand 203 states and 292 transitions. Second operand 5 states. [2020-10-20 01:42:35,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:35,245 INFO L93 Difference]: Finished difference Result 769 states and 1111 transitions. [2020-10-20 01:42:35,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 01:42:35,246 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-20 01:42:35,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:35,249 INFO L225 Difference]: With dead ends: 769 [2020-10-20 01:42:35,250 INFO L226 Difference]: Without dead ends: 573 [2020-10-20 01:42:35,252 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 01:42:35,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2020-10-20 01:42:35,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 201. [2020-10-20 01:42:35,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-10-20 01:42:35,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 286 transitions. [2020-10-20 01:42:35,282 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 286 transitions. Word has length 28 [2020-10-20 01:42:35,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:35,286 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 286 transitions. [2020-10-20 01:42:35,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:35,286 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 286 transitions. [2020-10-20 01:42:35,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-20 01:42:35,293 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:35,293 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, 1, 1] [2020-10-20 01:42:35,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 01:42:35,294 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:35,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:35,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1643402821, now seen corresponding path program 1 times [2020-10-20 01:42:35,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:35,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199242332] [2020-10-20 01:42:35,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:35,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:35,393 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 01:42:35,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199242332] [2020-10-20 01:42:35,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:35,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:42:35,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801731341] [2020-10-20 01:42:35,395 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:35,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:35,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:35,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:35,396 INFO L87 Difference]: Start difference. First operand 201 states and 286 transitions. Second operand 5 states. [2020-10-20 01:42:35,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:35,461 INFO L93 Difference]: Finished difference Result 555 states and 781 transitions. [2020-10-20 01:42:35,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:42:35,462 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-10-20 01:42:35,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:35,466 INFO L225 Difference]: With dead ends: 555 [2020-10-20 01:42:35,466 INFO L226 Difference]: Without dead ends: 361 [2020-10-20 01:42:35,468 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 01:42:35,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2020-10-20 01:42:35,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 213. [2020-10-20 01:42:35,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-10-20 01:42:35,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 298 transitions. [2020-10-20 01:42:35,488 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 298 transitions. Word has length 35 [2020-10-20 01:42:35,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:35,488 INFO L481 AbstractCegarLoop]: Abstraction has 213 states and 298 transitions. [2020-10-20 01:42:35,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:35,488 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 298 transitions. [2020-10-20 01:42:35,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-20 01:42:35,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:35,489 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, 1, 1] [2020-10-20 01:42:35,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 01:42:35,490 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:35,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:35,490 INFO L82 PathProgramCache]: Analyzing trace with hash 632285571, now seen corresponding path program 1 times [2020-10-20 01:42:35,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:35,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403351813] [2020-10-20 01:42:35,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:35,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:35,554 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 01:42:35,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403351813] [2020-10-20 01:42:35,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:35,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:42:35,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057328968] [2020-10-20 01:42:35,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:42:35,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:35,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:42:35,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:42:35,556 INFO L87 Difference]: Start difference. First operand 213 states and 298 transitions. Second operand 4 states. [2020-10-20 01:42:35,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:35,609 INFO L93 Difference]: Finished difference Result 515 states and 715 transitions. [2020-10-20 01:42:35,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:42:35,610 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-10-20 01:42:35,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:35,612 INFO L225 Difference]: With dead ends: 515 [2020-10-20 01:42:35,613 INFO L226 Difference]: Without dead ends: 309 [2020-10-20 01:42:35,613 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 01:42:35,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-10-20 01:42:35,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 221. [2020-10-20 01:42:35,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-10-20 01:42:35,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 306 transitions. [2020-10-20 01:42:35,635 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 306 transitions. Word has length 35 [2020-10-20 01:42:35,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:35,636 INFO L481 AbstractCegarLoop]: Abstraction has 221 states and 306 transitions. [2020-10-20 01:42:35,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:42:35,636 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 306 transitions. [2020-10-20 01:42:35,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-20 01:42:35,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:35,637 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, 1, 1] [2020-10-20 01:42:35,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 01:42:35,638 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:35,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:35,639 INFO L82 PathProgramCache]: Analyzing trace with hash -388782783, now seen corresponding path program 1 times [2020-10-20 01:42:35,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:35,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502787012] [2020-10-20 01:42:35,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:35,698 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 01:42:35,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502787012] [2020-10-20 01:42:35,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:35,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:42:35,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350511321] [2020-10-20 01:42:35,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:35,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:35,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:35,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:35,700 INFO L87 Difference]: Start difference. First operand 221 states and 306 transitions. Second operand 3 states. [2020-10-20 01:42:35,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:35,755 INFO L93 Difference]: Finished difference Result 535 states and 735 transitions. [2020-10-20 01:42:35,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:35,756 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-10-20 01:42:35,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:35,758 INFO L225 Difference]: With dead ends: 535 [2020-10-20 01:42:35,758 INFO L226 Difference]: Without dead ends: 321 [2020-10-20 01:42:35,759 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 01:42:35,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-10-20 01:42:35,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2020-10-20 01:42:35,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-10-20 01:42:35,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 428 transitions. [2020-10-20 01:42:35,786 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 428 transitions. Word has length 35 [2020-10-20 01:42:35,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:35,787 INFO L481 AbstractCegarLoop]: Abstraction has 321 states and 428 transitions. [2020-10-20 01:42:35,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:35,787 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 428 transitions. [2020-10-20 01:42:35,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-20 01:42:35,789 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:35,790 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, 1, 1, 1] [2020-10-20 01:42:35,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 01:42:35,790 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:35,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:35,791 INFO L82 PathProgramCache]: Analyzing trace with hash -713441279, now seen corresponding path program 1 times [2020-10-20 01:42:35,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:35,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316392960] [2020-10-20 01:42:35,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:35,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:35,936 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 01:42:35,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316392960] [2020-10-20 01:42:35,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:35,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 01:42:35,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102129406] [2020-10-20 01:42:35,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 01:42:35,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:35,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 01:42:35,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:42:35,938 INFO L87 Difference]: Start difference. First operand 321 states and 428 transitions. Second operand 8 states. [2020-10-20 01:42:36,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:36,673 INFO L93 Difference]: Finished difference Result 1231 states and 1624 transitions. [2020-10-20 01:42:36,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-20 01:42:36,673 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2020-10-20 01:42:36,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:36,678 INFO L225 Difference]: With dead ends: 1231 [2020-10-20 01:42:36,678 INFO L226 Difference]: Without dead ends: 917 [2020-10-20 01:42:36,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=201, Invalid=611, Unknown=0, NotChecked=0, Total=812 [2020-10-20 01:42:36,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2020-10-20 01:42:36,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 321. [2020-10-20 01:42:36,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-10-20 01:42:36,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 420 transitions. [2020-10-20 01:42:36,711 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 420 transitions. Word has length 36 [2020-10-20 01:42:36,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:36,712 INFO L481 AbstractCegarLoop]: Abstraction has 321 states and 420 transitions. [2020-10-20 01:42:36,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 01:42:36,712 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 420 transitions. [2020-10-20 01:42:36,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-20 01:42:36,713 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:36,713 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:36,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 01:42:36,714 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:36,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:36,714 INFO L82 PathProgramCache]: Analyzing trace with hash -415358832, now seen corresponding path program 1 times [2020-10-20 01:42:36,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:36,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392017195] [2020-10-20 01:42:36,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:36,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:36,775 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:36,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392017195] [2020-10-20 01:42:36,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:36,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:42:36,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785080023] [2020-10-20 01:42:36,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:36,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:36,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:36,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:36,777 INFO L87 Difference]: Start difference. First operand 321 states and 420 transitions. Second operand 3 states. [2020-10-20 01:42:36,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:36,834 INFO L93 Difference]: Finished difference Result 471 states and 623 transitions. [2020-10-20 01:42:36,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:36,834 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-10-20 01:42:36,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:36,837 INFO L225 Difference]: With dead ends: 471 [2020-10-20 01:42:36,837 INFO L226 Difference]: Without dead ends: 469 [2020-10-20 01:42:36,838 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 01:42:36,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-10-20 01:42:36,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 361. [2020-10-20 01:42:36,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-10-20 01:42:36,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 481 transitions. [2020-10-20 01:42:36,873 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 481 transitions. Word has length 51 [2020-10-20 01:42:36,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:36,873 INFO L481 AbstractCegarLoop]: Abstraction has 361 states and 481 transitions. [2020-10-20 01:42:36,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:36,873 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 481 transitions. [2020-10-20 01:42:36,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-20 01:42:36,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:36,875 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-20 01:42:36,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-20 01:42:36,875 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:36,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:36,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1528713513, now seen corresponding path program 1 times [2020-10-20 01:42:36,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:36,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132211440] [2020-10-20 01:42:36,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:42:36,952 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:42:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:42:37,039 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:42:37,109 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 01:42:37,109 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 01:42:37,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-20 01:42:37,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:42:37 BoogieIcfgContainer [2020-10-20 01:42:37,302 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:42:37,302 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:42:37,302 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:42:37,303 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:42:37,303 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:42:33" (3/4) ... [2020-10-20 01:42:37,306 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 01:42:37,523 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:42:37,524 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:42:37,527 INFO L168 Benchmark]: Toolchain (without parser) took 5999.12 ms. Allocated memory was 36.7 MB in the beginning and 84.9 MB in the end (delta: 48.2 MB). Free memory was 19.4 MB in the beginning and 37.6 MB in the end (delta: -18.3 MB). Peak memory consumption was 62.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:37,527 INFO L168 Benchmark]: CDTParser took 0.76 ms. Allocated memory is still 33.6 MB. Free memory was 11.9 MB in the beginning and 11.9 MB in the end (delta: 47.6 kB). Peak memory consumption was 47.6 kB. Max. memory is 14.3 GB. [2020-10-20 01:42:37,528 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.46 ms. Allocated memory was 36.7 MB in the beginning and 44.6 MB in the end (delta: 7.9 MB). Free memory was 18.6 MB in the beginning and 14.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 17.9 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:37,528 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.42 ms. Allocated memory is still 45.6 MB. Free memory was 28.3 MB in the beginning and 24.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:37,529 INFO L168 Benchmark]: Boogie Preprocessor took 43.67 ms. Allocated memory is still 45.6 MB. Free memory was 24.8 MB in the beginning and 22.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:37,529 INFO L168 Benchmark]: RCFGBuilder took 1070.35 ms. Allocated memory was 45.6 MB in the beginning and 49.3 MB in the end (delta: 3.7 MB). Free memory was 22.1 MB in the beginning and 22.1 MB in the end (delta: -41.2 kB). Peak memory consumption was 16.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:37,529 INFO L168 Benchmark]: TraceAbstraction took 3869.28 ms. Allocated memory was 49.3 MB in the beginning and 84.9 MB in the end (delta: 35.7 MB). Free memory was 21.7 MB in the beginning and 20.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 37.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:37,530 INFO L168 Benchmark]: Witness Printer took 221.76 ms. Allocated memory is still 84.9 MB. Free memory was 20.0 MB in the beginning and 37.6 MB in the end (delta: -17.6 MB). Peak memory consumption was 14.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:37,533 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76 ms. Allocated memory is still 33.6 MB. Free memory was 11.9 MB in the beginning and 11.9 MB in the end (delta: 47.6 kB). Peak memory consumption was 47.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 673.46 ms. Allocated memory was 36.7 MB in the beginning and 44.6 MB in the end (delta: 7.9 MB). Free memory was 18.6 MB in the beginning and 14.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 17.9 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 98.42 ms. Allocated memory is still 45.6 MB. Free memory was 28.3 MB in the beginning and 24.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 43.67 ms. Allocated memory is still 45.6 MB. Free memory was 24.8 MB in the beginning and 22.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1070.35 ms. Allocated memory was 45.6 MB in the beginning and 49.3 MB in the end (delta: 3.7 MB). Free memory was 22.1 MB in the beginning and 22.1 MB in the end (delta: -41.2 kB). Peak memory consumption was 16.4 MB. Max. memory is 14.3 GB. * TraceAbstraction took 3869.28 ms. Allocated memory was 49.3 MB in the beginning and 84.9 MB in the end (delta: 35.7 MB). Free memory was 21.7 MB in the beginning and 20.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 37.4 MB. Max. memory is 14.3 GB. * Witness Printer took 221.76 ms. Allocated memory is still 84.9 MB. Free memory was 20.0 MB in the beginning and 37.6 MB in the end (delta: -17.6 MB). Peak memory consumption was 14.5 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: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L312] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L509] int cleanupTimeShifts = 4; [L650] int methAndRunningLastTime ; [L759] int pumpRunning = 0; [L760] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L590] int retValue_acc ; [L591] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L639] int retValue_acc ; [L642] retValue_acc = 1 [L643] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L597] tmp = valid_product() [L599] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L655] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L691] int splverifierCounter ; [L692] int tmp ; [L693] int tmp___0 ; [L694] int tmp___1 ; [L695] int tmp___2 ; [L698] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L700] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L702] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L708] tmp = __VERIFIER_nondet_int() [L710] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L718] tmp___0 = __VERIFIER_nondet_int() [L720] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L728] tmp___2 = __VERIFIER_nondet_int() [L730] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L766] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L773] COND TRUE \read(systemActive) [L795] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L798] COND TRUE ! pumpRunning [L910] int retValue_acc ; [L911] int tmp ; [L912] int tmp___0 ; [L129] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L132] COND FALSE !(waterLevel < 2) [L136] retValue_acc = 0 [L137] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L916] tmp = isHighWaterSensorDry() [L918] COND FALSE !(\read(tmp)) [L921] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L923] retValue_acc = tmp___0 [L924] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L800] tmp = isHighWaterLevel() [L802] COND TRUE \read(tmp) [L829] int tmp ; [L854] int retValue_acc ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L858] retValue_acc = isMethaneLevelCritical() [L860] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L833] tmp = isMethaneAlarm() [L835] COND FALSE !(\read(tmp)) [L823] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L660] int tmp ; [L661] int tmp___0 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L665] tmp = isMethaneLevelCritical() [L667] COND FALSE !(\read(tmp)) [L683] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L700] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L702] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L708] tmp = __VERIFIER_nondet_int() [L710] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L718] tmp___0 = __VERIFIER_nondet_int() [L720] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L79] COND FALSE !(\read(methaneLevelCritical)) [L82] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L728] tmp___2 = __VERIFIER_nondet_int() [L730] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L766] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L55] COND TRUE waterLevel > 0 [L56] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L773] COND TRUE \read(systemActive) [L795] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L798] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L660] int tmp ; [L661] int tmp___0 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L665] tmp = isMethaneLevelCritical() [L667] COND TRUE \read(tmp) [L865] int retValue_acc ; [L868] retValue_acc = pumpRunning [L869] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L669] tmp___0 = isPumpRunning() [L671] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L672] COND FALSE !(\read(methAndRunningLastTime)) [L677] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L700] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L702] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L708] tmp = __VERIFIER_nondet_int() [L710] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L718] tmp___0 = __VERIFIER_nondet_int() [L720] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L728] tmp___2 = __VERIFIER_nondet_int() [L730] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L766] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L55] COND TRUE waterLevel > 0 [L56] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L773] COND TRUE \read(systemActive) [L795] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L798] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L660] int tmp ; [L661] int tmp___0 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L665] tmp = isMethaneLevelCritical() [L667] COND TRUE \read(tmp) [L865] int retValue_acc ; [L868] retValue_acc = pumpRunning [L869] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L669] tmp___0 = isPumpRunning() [L671] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L672] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L3] __assert_fail("0", "minepump_spec2_product43.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 96 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.6s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 980 SDtfs, 1218 SDslu, 2166 SDs, 0 SdLazy, 315 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=361occurred in iteration=11, 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, 11 MinimizatonAttempts, 1554 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 402 NumberOfCodeBlocks, 402 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 322 ConstructedInterpolants, 0 QuantifiedInterpolants, 20276 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 14/14 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...