./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product13.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_spec3_product13.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 860ff1846e87757b91c6aac79a03ba005ad35e34 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 01:43:03,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:43:03,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:43:03,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:43:03,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:43:03,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:43:03,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:43:03,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:43:03,384 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:43:03,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:43:03,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:43:03,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:43:03,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:43:03,388 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:43:03,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:43:03,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:43:03,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:43:03,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:43:03,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:43:03,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:43:03,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:43:03,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:43:03,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:43:03,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:43:03,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:43:03,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:43:03,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:43:03,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:43:03,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:43:03,422 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:43:03,422 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:43:03,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:43:03,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:43:03,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:43:03,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:43:03,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:43:03,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:43:03,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:43:03,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:43:03,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:43:03,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:43:03,434 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:43:03,486 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:43:03,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:43:03,487 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:43:03,488 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:43:03,488 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:43:03,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:43:03,491 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:43:03,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:43:03,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:43:03,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:43:03,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:43:03,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:43:03,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:43:03,492 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:43:03,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:43:03,493 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:43:03,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:43:03,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:43:03,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:43:03,494 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:43:03,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:43:03,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:43:03,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:43:03,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:43:03,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:43:03,497 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:43:03,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:43:03,497 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:43:03,497 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:43:03,498 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 -> 860ff1846e87757b91c6aac79a03ba005ad35e34 [2020-10-20 01:43:03,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:43:03,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:43:03,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:43:03,792 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:43:03,793 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:43:03,794 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c [2020-10-20 01:43:03,870 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64bf7f932/c4941c042c6a4e908fa6043c833c36c9/FLAG632e53f93 [2020-10-20 01:43:04,363 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:43:04,363 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c [2020-10-20 01:43:04,376 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64bf7f932/c4941c042c6a4e908fa6043c833c36c9/FLAG632e53f93 [2020-10-20 01:43:04,739 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64bf7f932/c4941c042c6a4e908fa6043c833c36c9 [2020-10-20 01:43:04,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:43:04,749 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:43:04,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:04,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:43:04,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:43:04,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:04" (1/1) ... [2020-10-20 01:43:04,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4debd630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:04, skipping insertion in model container [2020-10-20 01:43:04,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:04" (1/1) ... [2020-10-20 01:43:04,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:43:04,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:43:05,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:05,170 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:43:05,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:05,288 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:43:05,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:05 WrapperNode [2020-10-20 01:43:05,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:05,290 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:05,290 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:43:05,290 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:43:05,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:05" (1/1) ... [2020-10-20 01:43:05,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:05" (1/1) ... [2020-10-20 01:43:05,360 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:05,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:43:05,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:43:05,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:43:05,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:05" (1/1) ... [2020-10-20 01:43:05,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:05" (1/1) ... [2020-10-20 01:43:05,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:05" (1/1) ... [2020-10-20 01:43:05,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:05" (1/1) ... [2020-10-20 01:43:05,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:05" (1/1) ... [2020-10-20 01:43:05,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:05" (1/1) ... [2020-10-20 01:43:05,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:05" (1/1) ... [2020-10-20 01:43:05,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:43:05,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:43:05,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:43:05,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:43:05,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:05" (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 01:43:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:43:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:43:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:43:05,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:43:06,385 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:43:06,385 INFO L298 CfgBuilder]: Removed 108 assume(true) statements. [2020-10-20 01:43:06,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:06 BoogieIcfgContainer [2020-10-20 01:43:06,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:43:06,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:43:06,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:43:06,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:43:06,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:43:04" (1/3) ... [2020-10-20 01:43:06,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d291f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:06, skipping insertion in model container [2020-10-20 01:43:06,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:05" (2/3) ... [2020-10-20 01:43:06,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d291f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:06, skipping insertion in model container [2020-10-20 01:43:06,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:06" (3/3) ... [2020-10-20 01:43:06,396 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product13.cil.c [2020-10-20 01:43:06,409 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:43:06,416 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:43:06,431 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:43:06,458 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:43:06,458 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:43:06,458 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:43:06,459 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:43:06,460 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:43:06,461 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:43:06,461 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:43:06,461 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:43:06,489 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2020-10-20 01:43:06,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 01:43:06,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:06,495 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 01:43:06,496 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:06,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:06,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1829990459, now seen corresponding path program 1 times [2020-10-20 01:43:06,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:06,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003879543] [2020-10-20 01:43:06,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:06,788 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 01:43:06,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003879543] [2020-10-20 01:43:06,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:06,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:43:06,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97153085] [2020-10-20 01:43:06,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:43:06,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:06,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:43:06,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:43:06,816 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2020-10-20 01:43:06,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:06,845 INFO L93 Difference]: Finished difference Result 147 states and 218 transitions. [2020-10-20 01:43:06,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:43:06,847 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-20 01:43:06,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:06,860 INFO L225 Difference]: With dead ends: 147 [2020-10-20 01:43:06,860 INFO L226 Difference]: Without dead ends: 71 [2020-10-20 01:43:06,864 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 01:43:06,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-20 01:43:06,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-20 01:43:06,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-20 01:43:06,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 99 transitions. [2020-10-20 01:43:06,908 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 99 transitions. Word has length 18 [2020-10-20 01:43:06,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:06,908 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 99 transitions. [2020-10-20 01:43:06,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:43:06,909 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 99 transitions. [2020-10-20 01:43:06,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 01:43:06,924 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:06,925 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 01:43:06,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:43:06,926 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:06,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:06,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1553946084, now seen corresponding path program 1 times [2020-10-20 01:43:06,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:06,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121396432] [2020-10-20 01:43:06,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:07,027 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 01:43:07,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121396432] [2020-10-20 01:43:07,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:07,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:43:07,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961914645] [2020-10-20 01:43:07,029 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:07,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:07,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:07,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:07,032 INFO L87 Difference]: Start difference. First operand 71 states and 99 transitions. Second operand 3 states. [2020-10-20 01:43:07,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:07,056 INFO L93 Difference]: Finished difference Result 71 states and 99 transitions. [2020-10-20 01:43:07,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:07,058 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-20 01:43:07,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:07,059 INFO L225 Difference]: With dead ends: 71 [2020-10-20 01:43:07,060 INFO L226 Difference]: Without dead ends: 33 [2020-10-20 01:43:07,061 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 01:43:07,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-20 01:43:07,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-20 01:43:07,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-20 01:43:07,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 46 transitions. [2020-10-20 01:43:07,072 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 46 transitions. Word has length 19 [2020-10-20 01:43:07,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:07,072 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 46 transitions. [2020-10-20 01:43:07,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:07,073 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2020-10-20 01:43:07,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:43:07,075 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:07,075 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 01:43:07,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:43:07,076 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:07,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:07,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1835969560, now seen corresponding path program 1 times [2020-10-20 01:43:07,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:07,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112235841] [2020-10-20 01:43:07,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:07,205 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 01:43:07,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112235841] [2020-10-20 01:43:07,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:07,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:43:07,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823484150] [2020-10-20 01:43:07,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:43:07,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:07,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:43:07,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:43:07,208 INFO L87 Difference]: Start difference. First operand 33 states and 46 transitions. Second operand 6 states. [2020-10-20 01:43:07,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:07,382 INFO L93 Difference]: Finished difference Result 60 states and 86 transitions. [2020-10-20 01:43:07,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:43:07,383 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-10-20 01:43:07,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:07,384 INFO L225 Difference]: With dead ends: 60 [2020-10-20 01:43:07,385 INFO L226 Difference]: Without dead ends: 33 [2020-10-20 01:43:07,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:43:07,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-20 01:43:07,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-20 01:43:07,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-20 01:43:07,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 45 transitions. [2020-10-20 01:43:07,392 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 45 transitions. Word has length 24 [2020-10-20 01:43:07,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:07,392 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 45 transitions. [2020-10-20 01:43:07,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:43:07,393 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2020-10-20 01:43:07,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-20 01:43:07,394 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:07,394 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 01:43:07,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:43:07,395 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:07,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:07,395 INFO L82 PathProgramCache]: Analyzing trace with hash -678170013, now seen corresponding path program 1 times [2020-10-20 01:43:07,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:07,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044780369] [2020-10-20 01:43:07,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:07,478 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 01:43:07,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044780369] [2020-10-20 01:43:07,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:07,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:43:07,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297765833] [2020-10-20 01:43:07,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:43:07,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:07,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:43:07,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:43:07,481 INFO L87 Difference]: Start difference. First operand 33 states and 45 transitions. Second operand 5 states. [2020-10-20 01:43:07,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:07,596 INFO L93 Difference]: Finished difference Result 158 states and 234 transitions. [2020-10-20 01:43:07,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 01:43:07,597 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-20 01:43:07,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:07,599 INFO L225 Difference]: With dead ends: 158 [2020-10-20 01:43:07,599 INFO L226 Difference]: Without dead ends: 131 [2020-10-20 01:43:07,600 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:43:07,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-10-20 01:43:07,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 56. [2020-10-20 01:43:07,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-20 01:43:07,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2020-10-20 01:43:07,612 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 25 [2020-10-20 01:43:07,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:07,612 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2020-10-20 01:43:07,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:43:07,613 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2020-10-20 01:43:07,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 01:43:07,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:07,614 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] [2020-10-20 01:43:07,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:43:07,615 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:07,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:07,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1657488293, now seen corresponding path program 1 times [2020-10-20 01:43:07,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:07,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572190608] [2020-10-20 01:43:07,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:43:07,721 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:43:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:43:07,830 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:43:07,875 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 01:43:07,875 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 01:43:07,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:43:07,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:43:07 BoogieIcfgContainer [2020-10-20 01:43:07,994 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:43:07,995 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:43:07,995 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:43:07,997 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:43:07,998 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:06" (3/4) ... [2020-10-20 01:43:08,000 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 01:43:08,122 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:43:08,123 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:43:08,125 INFO L168 Benchmark]: Toolchain (without parser) took 3380.53 ms. Allocated memory was 36.7 MB in the beginning and 57.1 MB in the end (delta: 20.4 MB). Free memory was 11.1 MB in the beginning and 29.1 MB in the end (delta: -18.0 MB). Peak memory consumption was 21.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:08,126 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 34.1 MB. Free memory was 15.7 MB in the beginning and 15.6 MB in the end (delta: 67.1 kB). Peak memory consumption was 33.6 kB. Max. memory is 14.3 GB. [2020-10-20 01:43:08,127 INFO L168 Benchmark]: CACSL2BoogieTranslator took 539.07 ms. Allocated memory was 36.7 MB in the beginning and 48.2 MB in the end (delta: 11.5 MB). Free memory was 10.2 MB in the beginning and 22.2 MB in the end (delta: -12.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:08,128 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.67 ms. Allocated memory is still 48.2 MB. Free memory was 22.2 MB in the beginning and 18.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:08,128 INFO L168 Benchmark]: Boogie Preprocessor took 41.15 ms. Allocated memory is still 48.2 MB. Free memory was 18.9 MB in the beginning and 16.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:08,129 INFO L168 Benchmark]: RCFGBuilder took 984.93 ms. Allocated memory was 48.2 MB in the beginning and 49.8 MB in the end (delta: 1.6 MB). Free memory was 16.6 MB in the beginning and 17.0 MB in the end (delta: -430.8 kB). Peak memory consumption was 6.7 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:08,130 INFO L168 Benchmark]: TraceAbstraction took 1606.29 ms. Allocated memory was 49.8 MB in the beginning and 56.6 MB in the end (delta: 6.8 MB). Free memory was 16.6 MB in the beginning and 16.6 MB in the end (delta: 65.3 kB). Peak memory consumption was 11.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:08,131 INFO L168 Benchmark]: Witness Printer took 127.96 ms. Allocated memory was 56.6 MB in the beginning and 57.1 MB in the end (delta: 524.3 kB). Free memory was 16.6 MB in the beginning and 29.1 MB in the end (delta: -12.5 MB). Peak memory consumption was 7.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:08,135 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 34.1 MB. Free memory was 15.7 MB in the beginning and 15.6 MB in the end (delta: 67.1 kB). Peak memory consumption was 33.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 539.07 ms. Allocated memory was 36.7 MB in the beginning and 48.2 MB in the end (delta: 11.5 MB). Free memory was 10.2 MB in the beginning and 22.2 MB in the end (delta: -12.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 70.67 ms. Allocated memory is still 48.2 MB. Free memory was 22.2 MB in the beginning and 18.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 41.15 ms. Allocated memory is still 48.2 MB. Free memory was 18.9 MB in the beginning and 16.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 984.93 ms. Allocated memory was 48.2 MB in the beginning and 49.8 MB in the end (delta: 1.6 MB). Free memory was 16.6 MB in the beginning and 17.0 MB in the end (delta: -430.8 kB). Peak memory consumption was 6.7 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1606.29 ms. Allocated memory was 49.8 MB in the beginning and 56.6 MB in the end (delta: 6.8 MB). Free memory was 16.6 MB in the beginning and 16.6 MB in the end (delta: 65.3 kB). Peak memory consumption was 11.8 MB. Max. memory is 14.3 GB. * Witness Printer took 127.96 ms. Allocated memory was 56.6 MB in the beginning and 57.1 MB in the end (delta: 524.3 kB). Free memory was 16.6 MB in the beginning and 29.1 MB in the end (delta: -12.5 MB). Peak memory consumption was 7.1 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: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L175] int cleanupTimeShifts = 4; [L277] int pumpRunning = 0; [L278] int systemActive = 1; [L696] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L251] int retValue_acc ; [L252] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L157] int retValue_acc ; [L160] retValue_acc = 1 [L161] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L258] tmp = valid_product() [L260] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L463] int splverifierCounter ; [L464] int tmp ; [L465] int tmp___0 ; [L466] int tmp___1 ; [L467] int tmp___2 ; [L470] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L472] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L474] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L480] tmp = __VERIFIER_nondet_int() [L482] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L490] tmp___0 = __VERIFIER_nondet_int() [L492] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L500] tmp___2 = __VERIFIER_nondet_int() [L502] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L285] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L292] COND TRUE \read(systemActive) [L314] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L317] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L429] int tmp ; [L430] int tmp___0 ; [L431] int tmp___1 ; [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L435] tmp = isMethaneLevelCritical() [L437] COND FALSE !(\read(tmp)) [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L441] tmp___0 = getWaterLevel() [L443] COND TRUE tmp___0 == 2 [L383] int retValue_acc ; [L386] retValue_acc = pumpRunning [L387] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L445] tmp___1 = isPumpRunning() [L447] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product13.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 260 SDtfs, 336 SDslu, 175 SDs, 0 SdLazy, 41 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 75 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 3741 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...