./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product32.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_product32.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 41828788c86d3b4773495bb168c9dac21937a6b5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 01:43:14,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:43:14,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:43:14,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:43:14,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:43:14,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:43:14,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:43:14,363 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:43:14,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:43:14,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:43:14,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:43:14,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:43:14,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:43:14,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:43:14,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:43:14,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:43:14,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:43:14,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:43:14,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:43:14,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:43:14,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:43:14,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:43:14,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:43:14,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:43:14,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:43:14,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:43:14,417 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:43:14,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:43:14,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:43:14,422 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:43:14,422 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:43:14,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:43:14,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:43:14,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:43:14,426 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:43:14,426 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:43:14,427 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:43:14,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:43:14,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:43:14,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:43:14,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:43:14,430 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:43:14,468 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:43:14,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:43:14,470 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:43:14,470 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:43:14,470 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:43:14,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:43:14,471 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:43:14,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:43:14,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:43:14,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:43:14,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:43:14,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:43:14,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:43:14,473 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:43:14,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:43:14,473 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:43:14,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:43:14,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:43:14,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:43:14,474 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:43:14,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:43:14,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:43:14,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:43:14,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:43:14,475 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:43:14,475 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:43:14,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:43:14,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:43:14,476 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:43:14,476 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 -> 41828788c86d3b4773495bb168c9dac21937a6b5 [2020-10-20 01:43:14,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:43:14,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:43:14,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:43:14,761 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:43:14,762 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:43:14,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c [2020-10-20 01:43:14,815 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9515ec83/7db33b34bf1b4a638b4eff31ee5f7473/FLAGc536136ce [2020-10-20 01:43:15,356 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:43:15,357 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c [2020-10-20 01:43:15,370 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9515ec83/7db33b34bf1b4a638b4eff31ee5f7473/FLAGc536136ce [2020-10-20 01:43:15,637 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9515ec83/7db33b34bf1b4a638b4eff31ee5f7473 [2020-10-20 01:43:15,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:43:15,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:43:15,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:15,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:43:15,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:43:15,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:15" (1/1) ... [2020-10-20 01:43:15,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27fd54d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:15, skipping insertion in model container [2020-10-20 01:43:15,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:15" (1/1) ... [2020-10-20 01:43:15,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:43:15,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:43:16,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:16,158 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:43:16,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:16,288 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:43:16,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:16 WrapperNode [2020-10-20 01:43:16,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:16,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:16,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:43:16,292 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:43:16,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:16" (1/1) ... [2020-10-20 01:43:16,324 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:16" (1/1) ... [2020-10-20 01:43:16,380 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:16,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:43:16,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:43:16,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:43:16,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:16" (1/1) ... [2020-10-20 01:43:16,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:16" (1/1) ... [2020-10-20 01:43:16,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:16" (1/1) ... [2020-10-20 01:43:16,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:16" (1/1) ... [2020-10-20 01:43:16,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:16" (1/1) ... [2020-10-20 01:43:16,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:16" (1/1) ... [2020-10-20 01:43:16,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:16" (1/1) ... [2020-10-20 01:43:16,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:43:16,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:43:16,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:43:16,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:43:16,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:16" (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 01:43:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:43:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:43:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:43:16,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:43:17,405 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:43:17,405 INFO L298 CfgBuilder]: Removed 174 assume(true) statements. [2020-10-20 01:43:17,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:17 BoogieIcfgContainer [2020-10-20 01:43:17,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:43:17,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:43:17,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:43:17,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:43:17,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:43:15" (1/3) ... [2020-10-20 01:43:17,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c12d5e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:17, skipping insertion in model container [2020-10-20 01:43:17,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:16" (2/3) ... [2020-10-20 01:43:17,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c12d5e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:17, skipping insertion in model container [2020-10-20 01:43:17,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:17" (3/3) ... [2020-10-20 01:43:17,417 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product32.cil.c [2020-10-20 01:43:17,430 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:43:17,438 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:43:17,451 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:43:17,486 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:43:17,486 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:43:17,486 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:43:17,487 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:43:17,487 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:43:17,487 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:43:17,487 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:43:17,488 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:43:17,505 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states. [2020-10-20 01:43:17,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 01:43:17,511 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:17,512 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 01:43:17,513 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:17,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:17,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1818462071, now seen corresponding path program 1 times [2020-10-20 01:43:17,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:17,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963152680] [2020-10-20 01:43:17,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:17,820 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 01:43:17,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963152680] [2020-10-20 01:43:17,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:17,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:43:17,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916123502] [2020-10-20 01:43:17,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:43:17,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:17,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:43:17,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:43:17,850 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 2 states. [2020-10-20 01:43:17,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:17,911 INFO L93 Difference]: Finished difference Result 223 states and 332 transitions. [2020-10-20 01:43:17,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:43:17,913 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-20 01:43:17,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:17,948 INFO L225 Difference]: With dead ends: 223 [2020-10-20 01:43:17,948 INFO L226 Difference]: Without dead ends: 109 [2020-10-20 01:43:17,953 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 01:43:17,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-20 01:43:18,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-20 01:43:18,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-20 01:43:18,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 156 transitions. [2020-10-20 01:43:18,020 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 156 transitions. Word has length 18 [2020-10-20 01:43:18,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:18,021 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 156 transitions. [2020-10-20 01:43:18,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:43:18,022 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 156 transitions. [2020-10-20 01:43:18,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 01:43:18,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:18,026 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 01:43:18,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:43:18,027 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:18,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:18,027 INFO L82 PathProgramCache]: Analyzing trace with hash 907431318, now seen corresponding path program 1 times [2020-10-20 01:43:18,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:18,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124511856] [2020-10-20 01:43:18,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:18,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:18,153 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 01:43:18,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124511856] [2020-10-20 01:43:18,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:18,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:43:18,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027547398] [2020-10-20 01:43:18,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:18,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:18,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:18,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:18,158 INFO L87 Difference]: Start difference. First operand 109 states and 156 transitions. Second operand 3 states. [2020-10-20 01:43:18,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:18,170 INFO L93 Difference]: Finished difference Result 109 states and 156 transitions. [2020-10-20 01:43:18,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:18,171 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-20 01:43:18,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:18,172 INFO L225 Difference]: With dead ends: 109 [2020-10-20 01:43:18,172 INFO L226 Difference]: Without dead ends: 47 [2020-10-20 01:43:18,174 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 01:43:18,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-20 01:43:18,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-20 01:43:18,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-20 01:43:18,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2020-10-20 01:43:18,180 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 19 [2020-10-20 01:43:18,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:18,180 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2020-10-20 01:43:18,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:18,181 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2020-10-20 01:43:18,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:43:18,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:18,182 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 01:43:18,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:43:18,183 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:18,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:18,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1805721692, now seen corresponding path program 1 times [2020-10-20 01:43:18,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:18,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503071651] [2020-10-20 01:43:18,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:18,284 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 01:43:18,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503071651] [2020-10-20 01:43:18,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:18,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:43:18,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500021723] [2020-10-20 01:43:18,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:18,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:18,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:18,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:18,288 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 3 states. [2020-10-20 01:43:18,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:18,335 INFO L93 Difference]: Finished difference Result 129 states and 189 transitions. [2020-10-20 01:43:18,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:18,336 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-20 01:43:18,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:18,337 INFO L225 Difference]: With dead ends: 129 [2020-10-20 01:43:18,339 INFO L226 Difference]: Without dead ends: 88 [2020-10-20 01:43:18,341 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 01:43:18,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-20 01:43:18,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2020-10-20 01:43:18,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-20 01:43:18,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 123 transitions. [2020-10-20 01:43:18,359 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 123 transitions. Word has length 24 [2020-10-20 01:43:18,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:18,360 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 123 transitions. [2020-10-20 01:43:18,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:18,360 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 123 transitions. [2020-10-20 01:43:18,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 01:43:18,362 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:18,362 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 01:43:18,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:43:18,363 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:18,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:18,363 INFO L82 PathProgramCache]: Analyzing trace with hash -820987702, now seen corresponding path program 1 times [2020-10-20 01:43:18,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:18,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553330721] [2020-10-20 01:43:18,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:18,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:18,460 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 01:43:18,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553330721] [2020-10-20 01:43:18,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:18,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:43:18,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455928938] [2020-10-20 01:43:18,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:43:18,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:18,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:43:18,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:43:18,463 INFO L87 Difference]: Start difference. First operand 84 states and 123 transitions. Second operand 5 states. [2020-10-20 01:43:18,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:18,601 INFO L93 Difference]: Finished difference Result 488 states and 740 transitions. [2020-10-20 01:43:18,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 01:43:18,601 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-10-20 01:43:18,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:18,605 INFO L225 Difference]: With dead ends: 488 [2020-10-20 01:43:18,605 INFO L226 Difference]: Without dead ends: 410 [2020-10-20 01:43:18,607 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 01:43:18,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2020-10-20 01:43:18,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 156. [2020-10-20 01:43:18,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-10-20 01:43:18,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 227 transitions. [2020-10-20 01:43:18,628 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 227 transitions. Word has length 26 [2020-10-20 01:43:18,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:18,629 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 227 transitions. [2020-10-20 01:43:18,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:43:18,629 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 227 transitions. [2020-10-20 01:43:18,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-20 01:43:18,631 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:18,631 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 01:43:18,632 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:43:18,632 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:18,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:18,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1430024248, now seen corresponding path program 1 times [2020-10-20 01:43:18,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:18,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151859343] [2020-10-20 01:43:18,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:43:18,730 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:43:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:43:18,812 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:43:18,875 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 01:43:18,876 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 01:43:18,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:43:19,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:43:19 BoogieIcfgContainer [2020-10-20 01:43:19,001 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:43:19,002 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:43:19,002 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:43:19,002 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:43:19,003 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:17" (3/4) ... [2020-10-20 01:43:19,011 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 01:43:19,150 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:43:19,150 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:43:19,155 INFO L168 Benchmark]: Toolchain (without parser) took 3509.91 ms. Allocated memory was 34.6 MB in the beginning and 61.9 MB in the end (delta: 27.3 MB). Free memory was 10.6 MB in the beginning and 23.0 MB in the end (delta: -12.5 MB). Peak memory consumption was 14.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:19,156 INFO L168 Benchmark]: CDTParser took 0.66 ms. Allocated memory is still 33.0 MB. Free memory is still 18.2 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 01:43:19,157 INFO L168 Benchmark]: CACSL2BoogieTranslator took 641.41 ms. Allocated memory was 34.6 MB in the beginning and 46.1 MB in the end (delta: 11.5 MB). Free memory was 9.8 MB in the beginning and 21.5 MB in the end (delta: -11.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:19,157 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.84 ms. Allocated memory is still 46.1 MB. Free memory was 21.5 MB in the beginning and 17.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:19,157 INFO L168 Benchmark]: Boogie Preprocessor took 63.58 ms. Allocated memory is still 46.1 MB. Free memory was 17.4 MB in the beginning and 14.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:19,158 INFO L168 Benchmark]: RCFGBuilder took 963.27 ms. Allocated memory was 46.1 MB in the beginning and 50.3 MB in the end (delta: 4.2 MB). Free memory was 14.6 MB in the beginning and 14.9 MB in the end (delta: -246.0 kB). Peak memory consumption was 5.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:19,159 INFO L168 Benchmark]: TraceAbstraction took 1592.51 ms. Allocated memory was 50.3 MB in the beginning and 61.9 MB in the end (delta: 11.5 MB). Free memory was 14.5 MB in the beginning and 36.1 MB in the end (delta: -21.6 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:19,159 INFO L168 Benchmark]: Witness Printer took 148.14 ms. Allocated memory is still 61.9 MB. Free memory was 36.1 MB in the beginning and 23.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:19,162 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66 ms. Allocated memory is still 33.0 MB. Free memory is still 18.2 MB. There was no memory consumed. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 641.41 ms. Allocated memory was 34.6 MB in the beginning and 46.1 MB in the end (delta: 11.5 MB). Free memory was 9.8 MB in the beginning and 21.5 MB in the end (delta: -11.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 88.84 ms. Allocated memory is still 46.1 MB. Free memory was 21.5 MB in the beginning and 17.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 63.58 ms. Allocated memory is still 46.1 MB. Free memory was 17.4 MB in the beginning and 14.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 14.3 GB. * RCFGBuilder took 963.27 ms. Allocated memory was 46.1 MB in the beginning and 50.3 MB in the end (delta: 4.2 MB). Free memory was 14.6 MB in the beginning and 14.9 MB in the end (delta: -246.0 kB). Peak memory consumption was 5.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1592.51 ms. Allocated memory was 50.3 MB in the beginning and 61.9 MB in the end (delta: 11.5 MB). Free memory was 14.5 MB in the beginning and 36.1 MB in the end (delta: -21.6 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. * Witness Printer took 148.14 ms. Allocated memory is still 61.9 MB. Free memory was 36.1 MB in the beginning and 23.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 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: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L491] int pumpRunning = 0; [L492] int systemActive = 1; [L719] int cleanupTimeShifts = 4; [L888] int waterLevel = 1; [L889] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L795] int retValue_acc ; [L796] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L879] int retValue_acc ; [L882] retValue_acc = 1 [L883] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L802] tmp = valid_product() [L804] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L415] int splverifierCounter ; [L416] int tmp ; [L417] int tmp___0 ; [L418] int tmp___1 ; [L419] int tmp___2 ; [L422] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L424] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L426] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L432] tmp = __VERIFIER_nondet_int() [L434] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L906] COND TRUE waterLevel < 2 [L907] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L442] tmp___0 = __VERIFIER_nondet_int() [L444] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L452] tmp___2 = __VERIFIER_nondet_int() [L454] COND TRUE \read(tmp___2) [L705] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L499] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L506] COND TRUE \read(systemActive) [L554] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L557] COND FALSE !(\read(pumpRunning)) [L528] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L531] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L820] int tmp ; [L821] int tmp___0 ; [L822] int tmp___1 ; [L927] int retValue_acc ; [L930] retValue_acc = methaneLevelCritical [L931] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L826] tmp = isMethaneLevelCritical() [L828] COND FALSE !(\read(tmp)) [L959] int retValue_acc ; [L962] retValue_acc = waterLevel [L963] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L832] tmp___0 = getWaterLevel() [L834] COND TRUE tmp___0 == 2 [L623] int retValue_acc ; [L626] retValue_acc = pumpRunning [L627] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L836] tmp___1 = isPumpRunning() [L838] 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_product32.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, 116 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 402 SDtfs, 445 SDslu, 330 SDs, 0 SdLazy, 53 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156occurred in iteration=4, 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, 258 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 3031 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...