./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 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_1.5.800.v20200727-1323.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_product55.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 4cb84f4cda4da5ed2f20ac89ec7baabe2dc4055e ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-5485861 [2020-10-25 23:06:42,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 23:06:42,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 23:06:42,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 23:06:42,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 23:06:42,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 23:06:42,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 23:06:42,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 23:06:42,409 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 23:06:42,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 23:06:42,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 23:06:42,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 23:06:42,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 23:06:42,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 23:06:42,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 23:06:42,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 23:06:42,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 23:06:42,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 23:06:42,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 23:06:42,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 23:06:42,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 23:06:42,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 23:06:42,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 23:06:42,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 23:06:42,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 23:06:42,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 23:06:42,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 23:06:42,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 23:06:42,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 23:06:42,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 23:06:42,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 23:06:42,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 23:06:42,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 23:06:42,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 23:06:42,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 23:06:42,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 23:06:42,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 23:06:42,467 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 23:06:42,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 23:06:42,470 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 23:06:42,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 23:06:42,472 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 23:06:42,528 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 23:06:42,528 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 23:06:42,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 23:06:42,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 23:06:42,532 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 23:06:42,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 23:06:42,533 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 23:06:42,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 23:06:42,533 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 23:06:42,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 23:06:42,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 23:06:42,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 23:06:42,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 23:06:42,536 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 23:06:42,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 23:06:42,536 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 23:06:42,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 23:06:42,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 23:06:42,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 23:06:42,537 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 23:06:42,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 23:06:42,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 23:06:42,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 23:06:42,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 23:06:42,538 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 23:06:42,538 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 23:06:42,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 23:06:42,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 23:06:42,539 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 23:06:42,539 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4cb84f4cda4da5ed2f20ac89ec7baabe2dc4055e [2020-10-25 23:06:42,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 23:06:42,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 23:06:42,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 23:06:42,954 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 23:06:42,956 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 23:06:42,957 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c [2020-10-25 23:06:43,027 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30259d8d7/23fa5ab5720349a4aaa7cc053213a175/FLAGee4f54f6d [2020-10-25 23:06:43,684 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 23:06:43,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c [2020-10-25 23:06:43,700 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30259d8d7/23fa5ab5720349a4aaa7cc053213a175/FLAGee4f54f6d [2020-10-25 23:06:43,947 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30259d8d7/23fa5ab5720349a4aaa7cc053213a175 [2020-10-25 23:06:43,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 23:06:43,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 23:06:43,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 23:06:43,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 23:06:43,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 23:06:43,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:06:43" (1/1) ... [2020-10-25 23:06:43,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40836615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:43, skipping insertion in model container [2020-10-25 23:06:43,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:06:43" (1/1) ... [2020-10-25 23:06:43,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 23:06:44,023 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 23:06:44,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:06:44,365 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 23:06:44,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:06:44,524 INFO L208 MainTranslator]: Completed translation [2020-10-25 23:06:44,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:44 WrapperNode [2020-10-25 23:06:44,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 23:06:44,528 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 23:06:44,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 23:06:44,529 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 23:06:44,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:44" (1/1) ... [2020-10-25 23:06:44,580 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:44" (1/1) ... [2020-10-25 23:06:44,636 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 23:06:44,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 23:06:44,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 23:06:44,638 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 23:06:44,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:44" (1/1) ... [2020-10-25 23:06:44,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:44" (1/1) ... [2020-10-25 23:06:44,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:44" (1/1) ... [2020-10-25 23:06:44,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:44" (1/1) ... [2020-10-25 23:06:44,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:44" (1/1) ... [2020-10-25 23:06:44,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:44" (1/1) ... [2020-10-25 23:06:44,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:44" (1/1) ... [2020-10-25 23:06:44,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 23:06:44,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 23:06:44,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 23:06:44,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 23:06:44,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:44" (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 [2020-10-25 23:06:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 23:06:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 23:06:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 23:06:44,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 23:06:45,792 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 23:06:45,792 INFO L298 CfgBuilder]: Removed 292 assume(true) statements. [2020-10-25 23:06:45,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:06:45 BoogieIcfgContainer [2020-10-25 23:06:45,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 23:06:45,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 23:06:45,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 23:06:45,800 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 23:06:45,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 11:06:43" (1/3) ... [2020-10-25 23:06:45,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f841b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:06:45, skipping insertion in model container [2020-10-25 23:06:45,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:44" (2/3) ... [2020-10-25 23:06:45,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f841b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:06:45, skipping insertion in model container [2020-10-25 23:06:45,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:06:45" (3/3) ... [2020-10-25 23:06:45,804 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product55.cil.c [2020-10-25 23:06:45,816 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 23:06:45,822 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-25 23:06:45,835 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-25 23:06:45,864 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 23:06:45,865 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 23:06:45,865 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 23:06:45,865 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 23:06:45,865 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 23:06:45,866 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 23:06:45,866 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 23:06:45,866 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 23:06:45,886 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states. [2020-10-25 23:06:45,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-25 23:06:45,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:45,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:06:45,895 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:45,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:45,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1535445390, now seen corresponding path program 1 times [2020-10-25 23:06:45,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:45,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161880608] [2020-10-25 23:06:45,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:46,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:06:46,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161880608] [2020-10-25 23:06:46,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:46,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:06:46,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889428223] [2020-10-25 23:06:46,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 23:06:46,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:46,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 23:06:46,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 23:06:46,230 INFO L87 Difference]: Start difference. First operand 200 states. Second operand 2 states. [2020-10-25 23:06:46,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:46,314 INFO L93 Difference]: Finished difference Result 391 states and 596 transitions. [2020-10-25 23:06:46,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 23:06:46,316 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-25 23:06:46,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:46,339 INFO L225 Difference]: With dead ends: 391 [2020-10-25 23:06:46,340 INFO L226 Difference]: Without dead ends: 193 [2020-10-25 23:06:46,357 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 [2020-10-25 23:06:46,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-10-25 23:06:46,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2020-10-25 23:06:46,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-10-25 23:06:46,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 288 transitions. [2020-10-25 23:06:46,438 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 288 transitions. Word has length 18 [2020-10-25 23:06:46,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:46,438 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 288 transitions. [2020-10-25 23:06:46,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 23:06:46,439 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 288 transitions. [2020-10-25 23:06:46,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-25 23:06:46,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:46,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:06:46,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 23:06:46,444 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:46,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:46,445 INFO L82 PathProgramCache]: Analyzing trace with hash 624414637, now seen corresponding path program 1 times [2020-10-25 23:06:46,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:46,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344110823] [2020-10-25 23:06:46,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:46,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:06:46,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344110823] [2020-10-25 23:06:46,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:46,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 23:06:46,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261830453] [2020-10-25 23:06:46,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:06:46,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:46,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:06:46,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:06:46,599 INFO L87 Difference]: Start difference. First operand 193 states and 288 transitions. Second operand 3 states. [2020-10-25 23:06:46,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:46,627 INFO L93 Difference]: Finished difference Result 193 states and 288 transitions. [2020-10-25 23:06:46,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:06:46,630 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-25 23:06:46,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:46,631 INFO L225 Difference]: With dead ends: 193 [2020-10-25 23:06:46,632 INFO L226 Difference]: Without dead ends: 75 [2020-10-25 23:06:46,634 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 [2020-10-25 23:06:46,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-25 23:06:46,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-10-25 23:06:46,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-25 23:06:46,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 111 transitions. [2020-10-25 23:06:46,645 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 111 transitions. Word has length 19 [2020-10-25 23:06:46,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:46,645 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 111 transitions. [2020-10-25 23:06:46,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:06:46,646 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 111 transitions. [2020-10-25 23:06:46,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-25 23:06:46,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:46,648 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] [2020-10-25 23:06:46,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 23:06:46,649 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:46,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:46,652 INFO L82 PathProgramCache]: Analyzing trace with hash -521457096, now seen corresponding path program 1 times [2020-10-25 23:06:46,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:46,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068565272] [2020-10-25 23:06:46,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:46,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:46,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:06:46,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068565272] [2020-10-25 23:06:46,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:46,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:06:46,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745386412] [2020-10-25 23:06:46,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 23:06:46,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:46,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 23:06:46,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-25 23:06:46,847 INFO L87 Difference]: Start difference. First operand 75 states and 111 transitions. Second operand 6 states. [2020-10-25 23:06:47,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:47,074 INFO L93 Difference]: Finished difference Result 238 states and 358 transitions. [2020-10-25 23:06:47,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 23:06:47,076 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-10-25 23:06:47,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:47,079 INFO L225 Difference]: With dead ends: 238 [2020-10-25 23:06:47,079 INFO L226 Difference]: Without dead ends: 169 [2020-10-25 23:06:47,080 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 [2020-10-25 23:06:47,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-25 23:06:47,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 96. [2020-10-25 23:06:47,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-25 23:06:47,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 143 transitions. [2020-10-25 23:06:47,104 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 143 transitions. Word has length 24 [2020-10-25 23:06:47,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:47,105 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 143 transitions. [2020-10-25 23:06:47,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 23:06:47,106 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 143 transitions. [2020-10-25 23:06:47,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-25 23:06:47,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:47,108 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] [2020-10-25 23:06:47,108 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 23:06:47,109 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:47,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:47,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1870578463, now seen corresponding path program 1 times [2020-10-25 23:06:47,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:47,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995035920] [2020-10-25 23:06:47,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:47,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:47,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:06:47,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995035920] [2020-10-25 23:06:47,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:47,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:06:47,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897652122] [2020-10-25 23:06:47,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:06:47,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:47,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:06:47,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:06:47,219 INFO L87 Difference]: Start difference. First operand 96 states and 143 transitions. Second operand 3 states. [2020-10-25 23:06:47,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:47,272 INFO L93 Difference]: Finished difference Result 197 states and 295 transitions. [2020-10-25 23:06:47,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:06:47,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-10-25 23:06:47,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:47,273 INFO L225 Difference]: With dead ends: 197 [2020-10-25 23:06:47,274 INFO L226 Difference]: Without dead ends: 107 [2020-10-25 23:06:47,275 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:06:47,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-25 23:06:47,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2020-10-25 23:06:47,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-25 23:06:47,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 150 transitions. [2020-10-25 23:06:47,286 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 150 transitions. Word has length 27 [2020-10-25 23:06:47,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:47,286 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 150 transitions. [2020-10-25 23:06:47,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:06:47,286 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 150 transitions. [2020-10-25 23:06:47,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-25 23:06:47,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:47,287 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] [2020-10-25 23:06:47,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 23:06:47,288 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:47,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:47,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1382032589, now seen corresponding path program 1 times [2020-10-25 23:06:47,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:47,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953000237] [2020-10-25 23:06:47,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:47,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:47,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:06:47,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953000237] [2020-10-25 23:06:47,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:47,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 23:06:47,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590911648] [2020-10-25 23:06:47,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:06:47,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:47,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:06:47,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:06:47,355 INFO L87 Difference]: Start difference. First operand 105 states and 150 transitions. Second operand 5 states. [2020-10-25 23:06:47,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:47,502 INFO L93 Difference]: Finished difference Result 533 states and 778 transitions. [2020-10-25 23:06:47,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 23:06:47,503 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-25 23:06:47,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:47,505 INFO L225 Difference]: With dead ends: 533 [2020-10-25 23:06:47,506 INFO L226 Difference]: Without dead ends: 434 [2020-10-25 23:06:47,507 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 [2020-10-25 23:06:47,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-10-25 23:06:47,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 171. [2020-10-25 23:06:47,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-10-25 23:06:47,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 239 transitions. [2020-10-25 23:06:47,527 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 239 transitions. Word has length 27 [2020-10-25 23:06:47,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:47,529 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 239 transitions. [2020-10-25 23:06:47,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:06:47,529 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 239 transitions. [2020-10-25 23:06:47,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-25 23:06:47,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:47,533 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:06:47,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 23:06:47,534 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:47,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:47,534 INFO L82 PathProgramCache]: Analyzing trace with hash -318231153, now seen corresponding path program 1 times [2020-10-25 23:06:47,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:47,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215807868] [2020-10-25 23:06:47,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:47,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 23:06:47,630 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 23:06:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 23:06:47,705 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 23:06:47,762 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 23:06:47,762 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 23:06:47,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-25 23:06:47,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 11:06:47 BoogieIcfgContainer [2020-10-25 23:06:47,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 23:06:47,907 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 23:06:47,907 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 23:06:47,907 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 23:06:47,908 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:06:45" (3/4) ... [2020-10-25 23:06:47,910 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-25 23:06:48,018 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 23:06:48,018 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 23:06:48,020 INFO L168 Benchmark]: Toolchain (without parser) took 4066.94 ms. Allocated memory was 50.3 MB in the beginning and 92.3 MB in the end (delta: 41.9 MB). Free memory was 32.3 MB in the beginning and 57.1 MB in the end (delta: -24.8 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:48,021 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 35.7 MB. Free memory was 19.9 MB in the beginning and 19.9 MB in the end (delta: 23.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 23:06:48,022 INFO L168 Benchmark]: CACSL2BoogieTranslator took 567.71 ms. Allocated memory is still 50.3 MB. Free memory was 31.6 MB in the beginning and 22.6 MB in the end (delta: 9.0 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:48,022 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.68 ms. Allocated memory is still 50.3 MB. Free memory was 22.6 MB in the beginning and 29.3 MB in the end (delta: -6.7 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:48,023 INFO L168 Benchmark]: Boogie Preprocessor took 63.44 ms. Allocated memory is still 50.3 MB. Free memory was 29.3 MB in the beginning and 25.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:48,024 INFO L168 Benchmark]: RCFGBuilder took 1090.99 ms. Allocated memory was 50.3 MB in the beginning and 73.4 MB in the end (delta: 23.1 MB). Free memory was 25.7 MB in the beginning and 42.4 MB in the end (delta: -16.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:48,025 INFO L168 Benchmark]: TraceAbstraction took 2109.82 ms. Allocated memory was 73.4 MB in the beginning and 92.3 MB in the end (delta: 18.9 MB). Free memory was 42.0 MB in the beginning and 68.5 MB in the end (delta: -26.5 MB). Peak memory consumption was 40.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:48,026 INFO L168 Benchmark]: Witness Printer took 111.25 ms. Allocated memory is still 92.3 MB. Free memory was 68.5 MB in the beginning and 57.1 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:48,030 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 35.7 MB. Free memory was 19.9 MB in the beginning and 19.9 MB in the end (delta: 23.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 567.71 ms. Allocated memory is still 50.3 MB. Free memory was 31.6 MB in the beginning and 22.6 MB in the end (delta: 9.0 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 108.68 ms. Allocated memory is still 50.3 MB. Free memory was 22.6 MB in the beginning and 29.3 MB in the end (delta: -6.7 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 63.44 ms. Allocated memory is still 50.3 MB. Free memory was 29.3 MB in the beginning and 25.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1090.99 ms. Allocated memory was 50.3 MB in the beginning and 73.4 MB in the end (delta: 23.1 MB). Free memory was 25.7 MB in the beginning and 42.4 MB in the end (delta: -16.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2109.82 ms. Allocated memory was 73.4 MB in the beginning and 92.3 MB in the end (delta: 18.9 MB). Free memory was 42.0 MB in the beginning and 68.5 MB in the end (delta: -26.5 MB). Peak memory consumption was 40.1 MB. Max. memory is 16.1 GB. * Witness Printer took 111.25 ms. Allocated memory is still 92.3 MB. Free memory was 68.5 MB in the beginning and 57.1 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 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: [L88] int waterLevel = 1; [L89] int methaneLevelCritical = 0; [L369] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L566] int cleanupTimeShifts = 4; [L669] int pumpRunning = 0; [L670] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L642] int retValue_acc ; [L643] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L649] tmp = valid_product() [L651] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L943] int splverifierCounter ; [L944] int tmp ; [L945] int tmp___0 ; [L946] int tmp___1 ; [L947] int tmp___2 ; [L950] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L952] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L954] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L960] tmp = __VERIFIER_nondet_int() [L962] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L106] COND TRUE waterLevel < 2 [L107] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L970] tmp___0 = __VERIFIER_nondet_int() [L972] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L980] tmp___2 = __VERIFIER_nondet_int() [L982] COND FALSE !(\read(tmp___2)) [L986] tmp___1 = __VERIFIER_nondet_int() [L988] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L896] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L903] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L677] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L684] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L909] int tmp ; [L910] int tmp___0 ; [L911] int tmp___1 ; [L127] int retValue_acc ; [L130] retValue_acc = methaneLevelCritical [L131] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L915] tmp = isMethaneLevelCritical() [L917] COND FALSE !(\read(tmp)) [L159] int retValue_acc ; [L162] retValue_acc = waterLevel [L163] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L921] tmp___0 = getWaterLevel() [L923] COND TRUE tmp___0 == 2 [L810] int retValue_acc ; [L813] retValue_acc = pumpRunning [L814] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L925] tmp___1 = isPumpRunning() [L927] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product55.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 200 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 751 SDtfs, 904 SDslu, 864 SDs, 0 SdLazy, 89 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=200occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 338 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 5641 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...