./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product18.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 e775674397a9c2f1915fc4aeec4057e4316f59fc ......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 01:43:06,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:43:06,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:43:06,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:43:06,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:43:06,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:43:06,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:43:06,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:43:06,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:43:06,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:43:06,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:43:06,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:43:06,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:43:06,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:43:06,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:43:06,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:43:06,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:43:06,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:43:06,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:43:06,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:43:06,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:43:06,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:43:06,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:43:06,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:43:06,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:43:06,948 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:43:06,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:43:06,955 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:43:06,956 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:43:06,958 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:43:06,959 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:43:06,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:43:06,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:43:06,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:43:06,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:43:06,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:43:06,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:43:06,966 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:43:06,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:43:06,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:43:06,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:43:06,969 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:43:07,004 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:43:07,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:43:07,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:43:07,006 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:43:07,006 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:43:07,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:43:07,007 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:43:07,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:43:07,007 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:43:07,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:43:07,009 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:43:07,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:43:07,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:43:07,010 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:43:07,010 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:43:07,010 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:43:07,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:43:07,011 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:43:07,011 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:43:07,011 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:43:07,011 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:43:07,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:43:07,012 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:43:07,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:43:07,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:43:07,013 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:43:07,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:43:07,013 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:43:07,013 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:43:07,013 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e775674397a9c2f1915fc4aeec4057e4316f59fc [2020-10-20 01:43:07,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:43:07,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:43:07,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:43:07,227 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:43:07,228 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:43:07,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c [2020-10-20 01:43:07,296 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48c0d403f/6dbd20482e724f078891c07510f9c046/FLAGaa4dff1d5 [2020-10-20 01:43:07,907 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:43:07,908 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c [2020-10-20 01:43:07,922 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48c0d403f/6dbd20482e724f078891c07510f9c046/FLAGaa4dff1d5 [2020-10-20 01:43:08,166 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48c0d403f/6dbd20482e724f078891c07510f9c046 [2020-10-20 01:43:08,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:43:08,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:43:08,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:08,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:43:08,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:43:08,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:08" (1/1) ... [2020-10-20 01:43:08,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e941eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:08, skipping insertion in model container [2020-10-20 01:43:08,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:08" (1/1) ... [2020-10-20 01:43:08,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:43:08,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:43:08,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:08,607 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:43:08,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:08,759 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:43:08,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:08 WrapperNode [2020-10-20 01:43:08,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:08,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:08,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:43:08,761 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:43:08,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:08" (1/1) ... [2020-10-20 01:43:08,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:08" (1/1) ... [2020-10-20 01:43:08,841 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:08,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:43:08,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:43:08,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:43:08,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:08" (1/1) ... [2020-10-20 01:43:08,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:08" (1/1) ... [2020-10-20 01:43:08,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:08" (1/1) ... [2020-10-20 01:43:08,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:08" (1/1) ... [2020-10-20 01:43:08,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:08" (1/1) ... [2020-10-20 01:43:08,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:08" (1/1) ... [2020-10-20 01:43:08,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:08" (1/1) ... [2020-10-20 01:43:08,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:43:08,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:43:08,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:43:08,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:43:08,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:43:08,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:43:08,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:43:08,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:43:08,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:43:09,792 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:43:09,793 INFO L298 CfgBuilder]: Removed 110 assume(true) statements. [2020-10-20 01:43:09,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:09 BoogieIcfgContainer [2020-10-20 01:43:09,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:43:09,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:43:09,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:43:09,800 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:43:09,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:43:08" (1/3) ... [2020-10-20 01:43:09,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b1c7cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:09, skipping insertion in model container [2020-10-20 01:43:09,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:08" (2/3) ... [2020-10-20 01:43:09,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b1c7cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:09, skipping insertion in model container [2020-10-20 01:43:09,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:09" (3/3) ... [2020-10-20 01:43:09,804 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product18.cil.c [2020-10-20 01:43:09,815 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:43:09,822 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:43:09,836 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:43:09,857 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:43:09,858 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:43:09,858 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:43:09,858 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:43:09,859 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:43:09,859 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:43:09,859 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:43:09,859 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:43:09,874 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2020-10-20 01:43:09,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 01:43:09,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:09,880 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:09,881 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:09,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:09,885 INFO L82 PathProgramCache]: Analyzing trace with hash -696096940, now seen corresponding path program 1 times [2020-10-20 01:43:09,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:09,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428607477] [2020-10-20 01:43:09,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:10,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:10,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428607477] [2020-10-20 01:43:10,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:10,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:43:10,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081731242] [2020-10-20 01:43:10,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:43:10,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:10,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:43:10,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:43:10,190 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 2 states. [2020-10-20 01:43:10,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:10,220 INFO L93 Difference]: Finished difference Result 159 states and 236 transitions. [2020-10-20 01:43:10,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:43:10,221 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-20 01:43:10,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:10,233 INFO L225 Difference]: With dead ends: 159 [2020-10-20 01:43:10,233 INFO L226 Difference]: Without dead ends: 77 [2020-10-20 01:43:10,237 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:43:10,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-20 01:43:10,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-10-20 01:43:10,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-20 01:43:10,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2020-10-20 01:43:10,274 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 108 transitions. Word has length 18 [2020-10-20 01:43:10,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:10,275 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 108 transitions. [2020-10-20 01:43:10,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:43:10,275 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 108 transitions. [2020-10-20 01:43:10,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 01:43:10,276 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:10,276 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:10,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:43:10,277 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:10,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:10,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1607127693, now seen corresponding path program 1 times [2020-10-20 01:43:10,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:10,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143236969] [2020-10-20 01:43:10,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:10,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:10,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:10,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143236969] [2020-10-20 01:43:10,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:10,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:43:10,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330089961] [2020-10-20 01:43:10,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:10,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:10,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:10,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:10,390 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. Second operand 3 states. [2020-10-20 01:43:10,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:10,402 INFO L93 Difference]: Finished difference Result 77 states and 108 transitions. [2020-10-20 01:43:10,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:10,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-20 01:43:10,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:10,403 INFO L225 Difference]: With dead ends: 77 [2020-10-20 01:43:10,404 INFO L226 Difference]: Without dead ends: 35 [2020-10-20 01:43:10,405 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:10,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-20 01:43:10,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-20 01:43:10,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-20 01:43:10,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2020-10-20 01:43:10,410 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 19 [2020-10-20 01:43:10,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:10,411 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2020-10-20 01:43:10,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:10,411 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2020-10-20 01:43:10,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:43:10,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:10,412 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:10,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:43:10,413 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:10,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:10,413 INFO L82 PathProgramCache]: Analyzing trace with hash 492093711, now seen corresponding path program 1 times [2020-10-20 01:43:10,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:10,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187187161] [2020-10-20 01:43:10,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:10,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:10,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187187161] [2020-10-20 01:43:10,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:10,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:43:10,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876297166] [2020-10-20 01:43:10,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:10,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:10,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:10,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:10,559 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 3 states. [2020-10-20 01:43:10,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:10,584 INFO L93 Difference]: Finished difference Result 64 states and 92 transitions. [2020-10-20 01:43:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:10,585 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-20 01:43:10,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:10,586 INFO L225 Difference]: With dead ends: 64 [2020-10-20 01:43:10,586 INFO L226 Difference]: Without dead ends: 35 [2020-10-20 01:43:10,587 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:10,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-20 01:43:10,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-20 01:43:10,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-20 01:43:10,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2020-10-20 01:43:10,593 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 24 [2020-10-20 01:43:10,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:10,593 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 48 transitions. [2020-10-20 01:43:10,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:10,594 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2020-10-20 01:43:10,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-20 01:43:10,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:10,596 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:10,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:43:10,596 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:10,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:10,597 INFO L82 PathProgramCache]: Analyzing trace with hash -147058101, now seen corresponding path program 1 times [2020-10-20 01:43:10,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:10,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886040204] [2020-10-20 01:43:10,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:10,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:10,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886040204] [2020-10-20 01:43:10,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:10,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:43:10,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377332281] [2020-10-20 01:43:10,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:43:10,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:10,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:43:10,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:43:10,668 INFO L87 Difference]: Start difference. First operand 35 states and 48 transitions. Second operand 5 states. [2020-10-20 01:43:10,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:10,782 INFO L93 Difference]: Finished difference Result 172 states and 255 transitions. [2020-10-20 01:43:10,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 01:43:10,782 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-20 01:43:10,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:10,784 INFO L225 Difference]: With dead ends: 172 [2020-10-20 01:43:10,784 INFO L226 Difference]: Without dead ends: 143 [2020-10-20 01:43:10,785 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:43:10,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-10-20 01:43:10,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 60. [2020-10-20 01:43:10,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-20 01:43:10,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 83 transitions. [2020-10-20 01:43:10,798 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 83 transitions. Word has length 25 [2020-10-20 01:43:10,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:10,798 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 83 transitions. [2020-10-20 01:43:10,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:43:10,798 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 83 transitions. [2020-10-20 01:43:10,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 01:43:10,799 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:10,800 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:10,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:43:10,800 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:10,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:10,801 INFO L82 PathProgramCache]: Analyzing trace with hash -2106367091, now seen corresponding path program 1 times [2020-10-20 01:43:10,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:10,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344693604] [2020-10-20 01:43:10,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:43:10,879 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:43:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:43:10,969 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:43:11,008 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 01:43:11,008 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 01:43:11,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:43:11,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:43:11 BoogieIcfgContainer [2020-10-20 01:43:11,102 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:43:11,102 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:43:11,103 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:43:11,103 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:43:11,103 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:09" (3/4) ... [2020-10-20 01:43:11,105 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 01:43:11,209 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:43:11,209 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:43:11,211 INFO L168 Benchmark]: Toolchain (without parser) took 3039.53 ms. Allocated memory was 40.9 MB in the beginning and 56.1 MB in the end (delta: 15.2 MB). Free memory was 18.3 MB in the beginning and 26.2 MB in the end (delta: -7.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:11,212 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 31.5 MB. Free memory was 7.8 MB in the beginning and 7.8 MB in the end (delta: 43.6 kB). Peak memory consumption was 43.6 kB. Max. memory is 14.3 GB. [2020-10-20 01:43:11,213 INFO L168 Benchmark]: CACSL2BoogieTranslator took 582.91 ms. Allocated memory was 40.9 MB in the beginning and 43.0 MB in the end (delta: 2.1 MB). Free memory was 17.4 MB in the beginning and 20.2 MB in the end (delta: -2.8 MB). Peak memory consumption was 8.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:11,213 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.44 ms. Allocated memory is still 43.0 MB. Free memory was 20.2 MB in the beginning and 16.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:11,214 INFO L168 Benchmark]: Boogie Preprocessor took 40.18 ms. Allocated memory is still 43.0 MB. Free memory was 16.9 MB in the beginning and 14.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:11,214 INFO L168 Benchmark]: RCFGBuilder took 909.38 ms. Allocated memory was 43.0 MB in the beginning and 48.8 MB in the end (delta: 5.8 MB). Free memory was 14.3 MB in the beginning and 29.7 MB in the end (delta: -15.4 MB). Peak memory consumption was 6.9 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:11,215 INFO L168 Benchmark]: TraceAbstraction took 1306.17 ms. Allocated memory was 48.8 MB in the beginning and 56.1 MB in the end (delta: 7.3 MB). Free memory was 28.9 MB in the beginning and 14.1 MB in the end (delta: 14.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:11,216 INFO L168 Benchmark]: Witness Printer took 106.49 ms. Allocated memory is still 56.1 MB. Free memory was 14.1 MB in the beginning and 26.2 MB in the end (delta: -12.1 MB). Peak memory consumption was 3.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:11,219 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 31.5 MB. Free memory was 7.8 MB in the beginning and 7.8 MB in the end (delta: 43.6 kB). Peak memory consumption was 43.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 582.91 ms. Allocated memory was 40.9 MB in the beginning and 43.0 MB in the end (delta: 2.1 MB). Free memory was 17.4 MB in the beginning and 20.2 MB in the end (delta: -2.8 MB). Peak memory consumption was 8.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 80.44 ms. Allocated memory is still 43.0 MB. Free memory was 20.2 MB in the beginning and 16.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 40.18 ms. Allocated memory is still 43.0 MB. Free memory was 16.9 MB in the beginning and 14.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 909.38 ms. Allocated memory was 43.0 MB in the beginning and 48.8 MB in the end (delta: 5.8 MB). Free memory was 14.3 MB in the beginning and 29.7 MB in the end (delta: -15.4 MB). Peak memory consumption was 6.9 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1306.17 ms. Allocated memory was 48.8 MB in the beginning and 56.1 MB in the end (delta: 7.3 MB). Free memory was 28.9 MB in the beginning and 14.1 MB in the end (delta: 14.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 14.3 GB. * Witness Printer took 106.49 ms. Allocated memory is still 56.1 MB. Free memory was 14.1 MB in the beginning and 26.2 MB in the end (delta: -12.1 MB). Peak memory consumption was 3.8 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L151] int waterLevel = 1; [L152] int methaneLevelCritical = 0; [L409] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L610] int pumpRunning = 0; [L611] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] int retValue_acc ; [L124] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L864] int retValue_acc ; [L867] retValue_acc = 1 [L868] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L772] int splverifierCounter ; [L773] int tmp ; [L774] int tmp___0 ; [L775] int tmp___1 ; [L776] int tmp___2 ; [L779] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L781] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L783] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L789] tmp = __VERIFIER_nondet_int() [L791] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L169] COND TRUE waterLevel < 2 [L170] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L799] tmp___0 = __VERIFIER_nondet_int() [L801] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L809] tmp___2 = __VERIFIER_nondet_int() [L811] COND TRUE \read(tmp___2) [L766] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L618] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L625] COND TRUE \read(systemActive) [L647] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L650] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L875] int tmp ; [L876] int tmp___0 ; [L877] int tmp___1 ; [L190] int retValue_acc ; [L193] retValue_acc = methaneLevelCritical [L194] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L881] tmp = isMethaneLevelCritical() [L883] COND FALSE !(\read(tmp)) [L222] int retValue_acc ; [L225] retValue_acc = waterLevel [L226] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L887] tmp___0 = getWaterLevel() [L889] COND TRUE tmp___0 == 2 [L699] int retValue_acc ; [L702] retValue_acc = pumpRunning [L703] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L891] tmp___1 = isPumpRunning() [L893] 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_product18.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, 84 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 281 SDtfs, 278 SDslu, 183 SDs, 0 SdLazy, 43 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred 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, 83 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 2890 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...