./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product14.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_product14.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 8369ffe6be6d2c55428400826fc244d656d1bbae .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 23:06:14,317 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 23:06:14,321 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 23:06:14,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 23:06:14,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 23:06:14,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 23:06:14,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 23:06:14,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 23:06:14,387 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 23:06:14,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 23:06:14,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 23:06:14,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 23:06:14,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 23:06:14,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 23:06:14,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 23:06:14,396 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 23:06:14,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 23:06:14,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 23:06:14,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 23:06:14,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 23:06:14,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 23:06:14,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 23:06:14,408 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 23:06:14,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 23:06:14,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 23:06:14,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 23:06:14,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 23:06:14,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 23:06:14,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 23:06:14,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 23:06:14,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 23:06:14,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 23:06:14,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 23:06:14,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 23:06:14,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 23:06:14,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 23:06:14,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 23:06:14,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 23:06:14,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 23:06:14,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 23:06:14,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 23:06:14,440 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 23:06:14,466 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 23:06:14,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 23:06:14,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 23:06:14,469 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 23:06:14,469 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 23:06:14,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 23:06:14,470 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 23:06:14,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 23:06:14,470 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 23:06:14,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 23:06:14,471 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 23:06:14,471 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 23:06:14,471 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 23:06:14,472 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 23:06:14,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 23:06:14,472 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 23:06:14,473 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 23:06:14,473 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 23:06:14,473 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 23:06:14,473 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 23:06:14,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 23:06:14,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 23:06:14,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 23:06:14,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 23:06:14,475 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 23:06:14,475 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 23:06:14,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 23:06:14,475 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 23:06:14,476 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 23:06:14,476 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8369ffe6be6d2c55428400826fc244d656d1bbae [2020-10-25 23:06:14,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 23:06:14,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 23:06:14,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 23:06:14,942 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 23:06:14,945 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 23:06:14,946 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product14.cil.c [2020-10-25 23:06:15,029 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb660cca7/a47ca85c6deb4666a3636f0c8dfe39ef/FLAGb5d2c0ffe [2020-10-25 23:06:15,785 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 23:06:15,788 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product14.cil.c [2020-10-25 23:06:15,809 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb660cca7/a47ca85c6deb4666a3636f0c8dfe39ef/FLAGb5d2c0ffe [2020-10-25 23:06:16,076 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb660cca7/a47ca85c6deb4666a3636f0c8dfe39ef [2020-10-25 23:06:16,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 23:06:16,087 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 23:06:16,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 23:06:16,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 23:06:16,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 23:06:16,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:06:16" (1/1) ... [2020-10-25 23:06:16,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@263609b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:16, skipping insertion in model container [2020-10-25 23:06:16,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:06:16" (1/1) ... [2020-10-25 23:06:16,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 23:06:16,201 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 23:06:16,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:06:16,538 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 23:06:16,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:06:16,718 INFO L208 MainTranslator]: Completed translation [2020-10-25 23:06:16,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:16 WrapperNode [2020-10-25 23:06:16,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 23:06:16,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 23:06:16,720 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 23:06:16,720 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 23:06:16,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:16" (1/1) ... [2020-10-25 23:06:16,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:16" (1/1) ... [2020-10-25 23:06:16,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 23:06:16,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 23:06:16,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 23:06:16,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 23:06:16,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:16" (1/1) ... [2020-10-25 23:06:16,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:16" (1/1) ... [2020-10-25 23:06:16,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:16" (1/1) ... [2020-10-25 23:06:16,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:16" (1/1) ... [2020-10-25 23:06:16,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:16" (1/1) ... [2020-10-25 23:06:16,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:16" (1/1) ... [2020-10-25 23:06:16,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:16" (1/1) ... [2020-10-25 23:06:16,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 23:06:16,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 23:06:16,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 23:06:16,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 23:06:16,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:16" (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 [2020-10-25 23:06:16,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 23:06:16,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 23:06:16,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 23:06:16,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 23:06:17,785 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 23:06:17,786 INFO L298 CfgBuilder]: Removed 110 assume(true) statements. [2020-10-25 23:06:17,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:06:17 BoogieIcfgContainer [2020-10-25 23:06:17,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 23:06:17,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 23:06:17,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 23:06:17,794 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 23:06:17,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 11:06:16" (1/3) ... [2020-10-25 23:06:17,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57599d73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:06:17, skipping insertion in model container [2020-10-25 23:06:17,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:16" (2/3) ... [2020-10-25 23:06:17,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57599d73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:06:17, skipping insertion in model container [2020-10-25 23:06:17,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:06:17" (3/3) ... [2020-10-25 23:06:17,799 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product14.cil.c [2020-10-25 23:06:17,812 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 23:06:17,818 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-25 23:06:17,833 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-25 23:06:17,863 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 23:06:17,863 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 23:06:17,863 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 23:06:17,864 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 23:06:17,864 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 23:06:17,864 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 23:06:17,864 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 23:06:17,865 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 23:06:17,883 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2020-10-25 23:06:17,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-25 23:06:17,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:17,891 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 23:06:17,892 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:17,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:17,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1323954982, now seen corresponding path program 1 times [2020-10-25 23:06:17,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:17,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429470044] [2020-10-25 23:06:17,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:18,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:18,233 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 23:06:18,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429470044] [2020-10-25 23:06:18,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:18,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:06:18,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885143125] [2020-10-25 23:06:18,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 23:06:18,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:18,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 23:06:18,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 23:06:18,259 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2020-10-25 23:06:18,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:18,287 INFO L93 Difference]: Finished difference Result 147 states and 218 transitions. [2020-10-25 23:06:18,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 23:06:18,288 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-25 23:06:18,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:18,300 INFO L225 Difference]: With dead ends: 147 [2020-10-25 23:06:18,300 INFO L226 Difference]: Without dead ends: 71 [2020-10-25 23:06:18,304 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 23:06:18,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-25 23:06:18,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-25 23:06:18,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-25 23:06:18,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 99 transitions. [2020-10-25 23:06:18,352 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 99 transitions. Word has length 18 [2020-10-25 23:06:18,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:18,353 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 99 transitions. [2020-10-25 23:06:18,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 23:06:18,353 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 99 transitions. [2020-10-25 23:06:18,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-25 23:06:18,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:18,355 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 23:06:18,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 23:06:18,355 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:18,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:18,356 INFO L82 PathProgramCache]: Analyzing trace with hash 412924229, now seen corresponding path program 1 times [2020-10-25 23:06:18,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:18,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085977337] [2020-10-25 23:06:18,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:18,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:18,507 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 23:06:18,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085977337] [2020-10-25 23:06:18,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:18,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 23:06:18,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323173616] [2020-10-25 23:06:18,509 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:06:18,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:18,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:06:18,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:06:18,511 INFO L87 Difference]: Start difference. First operand 71 states and 99 transitions. Second operand 3 states. [2020-10-25 23:06:18,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:18,523 INFO L93 Difference]: Finished difference Result 71 states and 99 transitions. [2020-10-25 23:06:18,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:06:18,530 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-25 23:06:18,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:18,531 INFO L225 Difference]: With dead ends: 71 [2020-10-25 23:06:18,531 INFO L226 Difference]: Without dead ends: 33 [2020-10-25 23:06:18,532 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 23:06:18,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-25 23:06:18,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-25 23:06:18,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-25 23:06:18,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 46 transitions. [2020-10-25 23:06:18,538 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 46 transitions. Word has length 19 [2020-10-25 23:06:18,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:18,538 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 46 transitions. [2020-10-25 23:06:18,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:06:18,539 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2020-10-25 23:06:18,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-25 23:06:18,540 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:18,540 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 23:06:18,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 23:06:18,540 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:18,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:18,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1180040056, now seen corresponding path program 1 times [2020-10-25 23:06:18,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:18,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898677499] [2020-10-25 23:06:18,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:18,639 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 23:06:18,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898677499] [2020-10-25 23:06:18,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:18,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:06:18,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694886439] [2020-10-25 23:06:18,641 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:06:18,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:18,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:06:18,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:06:18,643 INFO L87 Difference]: Start difference. First operand 33 states and 46 transitions. Second operand 5 states. [2020-10-25 23:06:18,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:18,721 INFO L93 Difference]: Finished difference Result 60 states and 86 transitions. [2020-10-25 23:06:18,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 23:06:18,722 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-25 23:06:18,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:18,723 INFO L225 Difference]: With dead ends: 60 [2020-10-25 23:06:18,724 INFO L226 Difference]: Without dead ends: 33 [2020-10-25 23:06:18,725 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-25 23:06:18,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-25 23:06:18,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-25 23:06:18,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-25 23:06:18,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 45 transitions. [2020-10-25 23:06:18,731 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 45 transitions. Word has length 24 [2020-10-25 23:06:18,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:18,732 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 45 transitions. [2020-10-25 23:06:18,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:06:18,732 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2020-10-25 23:06:18,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-25 23:06:18,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:18,734 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:06:18,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 23:06:18,734 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:18,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:18,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1819191868, now seen corresponding path program 1 times [2020-10-25 23:06:18,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:18,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866455726] [2020-10-25 23:06:18,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:18,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:18,840 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 23:06:18,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866455726] [2020-10-25 23:06:18,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:18,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 23:06:18,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49338978] [2020-10-25 23:06:18,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:06:18,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:18,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:06:18,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:06:18,843 INFO L87 Difference]: Start difference. First operand 33 states and 45 transitions. Second operand 5 states. [2020-10-25 23:06:18,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:18,945 INFO L93 Difference]: Finished difference Result 158 states and 234 transitions. [2020-10-25 23:06:18,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 23:06:18,946 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-25 23:06:18,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:18,948 INFO L225 Difference]: With dead ends: 158 [2020-10-25 23:06:18,949 INFO L226 Difference]: Without dead ends: 131 [2020-10-25 23:06:18,949 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 23:06:18,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-10-25 23:06:18,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 56. [2020-10-25 23:06:18,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-25 23:06:18,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2020-10-25 23:06:18,963 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 25 [2020-10-25 23:06:18,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:18,964 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2020-10-25 23:06:18,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:06:18,964 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2020-10-25 23:06:18,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-25 23:06:18,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:18,966 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] [2020-10-25 23:06:18,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 23:06:18,966 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:18,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:18,967 INFO L82 PathProgramCache]: Analyzing trace with hash 516466438, now seen corresponding path program 1 times [2020-10-25 23:06:18,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:18,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684907949] [2020-10-25 23:06:18,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:19,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 23:06:19,094 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 23:06:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 23:06:19,198 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 23:06:19,258 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 23:06:19,258 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 23:06:19,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 23:06:19,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 11:06:19 BoogieIcfgContainer [2020-10-25 23:06:19,375 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 23:06:19,375 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 23:06:19,376 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 23:06:19,376 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 23:06:19,376 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:06:17" (3/4) ... [2020-10-25 23:06:19,379 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-25 23:06:19,474 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 23:06:19,474 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 23:06:19,477 INFO L168 Benchmark]: Toolchain (without parser) took 3394.30 ms. Allocated memory was 41.9 MB in the beginning and 73.4 MB in the end (delta: 31.5 MB). Free memory was 19.1 MB in the beginning and 51.2 MB in the end (delta: -32.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:19,477 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 41.9 MB. Free memory was 22.4 MB in the beginning and 22.4 MB in the end (delta: 28.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 23:06:19,478 INFO L168 Benchmark]: CACSL2BoogieTranslator took 627.36 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 18.5 MB in the beginning and 26.8 MB in the end (delta: -8.3 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:19,479 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.36 ms. Allocated memory is still 50.3 MB. Free memory was 26.8 MB in the beginning and 23.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:19,480 INFO L168 Benchmark]: Boogie Preprocessor took 53.15 ms. Allocated memory is still 50.3 MB. Free memory was 23.8 MB in the beginning and 33.5 MB in the end (delta: -9.7 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:19,480 INFO L168 Benchmark]: RCFGBuilder took 944.87 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 33.5 MB in the beginning and 31.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:19,483 INFO L168 Benchmark]: TraceAbstraction took 1584.75 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 30.5 MB in the beginning and 32.8 MB in the end (delta: -2.3 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:19,484 INFO L168 Benchmark]: Witness Printer took 98.68 ms. Allocated memory is still 73.4 MB. Free memory was 32.8 MB in the beginning and 51.2 MB in the end (delta: -18.4 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:19,495 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 41.9 MB. Free memory was 22.4 MB in the beginning and 22.4 MB in the end (delta: 28.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 627.36 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 18.5 MB in the beginning and 26.8 MB in the end (delta: -8.3 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.36 ms. Allocated memory is still 50.3 MB. Free memory was 26.8 MB in the beginning and 23.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.15 ms. Allocated memory is still 50.3 MB. Free memory was 23.8 MB in the beginning and 33.5 MB in the end (delta: -9.7 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 944.87 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 33.5 MB in the beginning and 31.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1584.75 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 30.5 MB in the beginning and 32.8 MB in the end (delta: -2.3 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. * Witness Printer took 98.68 ms. Allocated memory is still 73.4 MB. Free memory was 32.8 MB in the beginning and 51.2 MB in the end (delta: -18.4 MB). Peak memory consumption was 11.9 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: [L133] int pumpRunning = 0; [L134] int systemActive = 1; [L460] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L727] int cleanupTimeShifts = 4; [L823] int waterLevel = 1; [L824] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L800] int retValue_acc ; [L801] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L807] tmp = valid_product() [L809] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L661] int splverifierCounter ; [L662] int tmp ; [L663] int tmp___0 ; [L664] int tmp___1 ; [L665] int tmp___2 ; [L668] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L670] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L672] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L678] tmp = __VERIFIER_nondet_int() [L680] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L841] COND TRUE waterLevel < 2 [L842] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L688] tmp___0 = __VERIFIER_nondet_int() [L690] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L698] tmp___2 = __VERIFIER_nondet_int() [L700] COND TRUE \read(tmp___2) [L286] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L140] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L147] COND TRUE \read(systemActive) [L169] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L172] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L93] int tmp ; [L94] int tmp___0 ; [L95] int tmp___1 ; [L862] int retValue_acc ; [L865] retValue_acc = methaneLevelCritical [L866] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L99] tmp = isMethaneLevelCritical() [L101] COND FALSE !(\read(tmp)) [L894] int retValue_acc ; [L897] retValue_acc = waterLevel [L898] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L105] tmp___0 = getWaterLevel() [L107] COND TRUE tmp___0 == 2 [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L109] tmp___1 = isPumpRunning() [L111] 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_product14.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 260 SDtfs, 334 SDslu, 177 SDs, 0 SdLazy, 39 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 75 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 3028 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...