./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product35.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_spec2_product35.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 858ae6ce02a6182d965089435301193a306a5587 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:42:25,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:42:25,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:42:25,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:42:25,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:42:25,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:42:25,853 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:42:25,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:42:25,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:42:25,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:42:25,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:42:25,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:42:25,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:42:25,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:42:25,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:42:25,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:42:25,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:42:25,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:42:25,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:42:25,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:42:25,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:42:25,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:42:25,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:42:25,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:42:25,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:42:25,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:42:25,900 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:42:25,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:42:25,903 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:42:25,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:42:25,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:42:25,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:42:25,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:42:25,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:42:25,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:42:25,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:42:25,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:42:25,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:42:25,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:42:25,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:42:25,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:42:25,922 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:42:25,968 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:42:25,970 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:42:25,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:42:25,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:42:25,972 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:42:25,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:42:25,973 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:42:25,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:42:25,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:42:25,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:42:25,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:42:25,975 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:42:25,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:42:25,975 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:42:25,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:42:25,975 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:42:25,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:42:25,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:42:25,976 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:42:25,976 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:42:25,976 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:42:25,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:42:25,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:42:25,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:42:25,977 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:42:25,977 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:42:25,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:42:25,978 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:42:25,978 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:42:25,979 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 -> 858ae6ce02a6182d965089435301193a306a5587 [2020-10-20 01:42:26,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:42:26,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:42:26,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:42:26,215 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:42:26,216 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:42:26,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2020-10-20 01:42:26,280 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f4e978eb/40080f6211664c52a4a4cc0badb9a4dc/FLAGbc489a5f3 [2020-10-20 01:42:26,789 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:42:26,790 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2020-10-20 01:42:26,807 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f4e978eb/40080f6211664c52a4a4cc0badb9a4dc/FLAGbc489a5f3 [2020-10-20 01:42:27,129 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f4e978eb/40080f6211664c52a4a4cc0badb9a4dc [2020-10-20 01:42:27,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:42:27,137 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:42:27,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:42:27,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:42:27,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:42:27,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:42:27" (1/1) ... [2020-10-20 01:42:27,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4debd630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:27, skipping insertion in model container [2020-10-20 01:42:27,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:42:27" (1/1) ... [2020-10-20 01:42:27,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:42:27,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:42:27,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:42:27,608 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:42:27,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:42:27,771 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:42:27,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:27 WrapperNode [2020-10-20 01:42:27,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:42:27,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:42:27,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:42:27,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:42:27,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:27" (1/1) ... [2020-10-20 01:42:27,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:27" (1/1) ... [2020-10-20 01:42:27,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:42:27,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:42:27,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:42:27,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:42:27,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:27" (1/1) ... [2020-10-20 01:42:27,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:27" (1/1) ... [2020-10-20 01:42:27,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:27" (1/1) ... [2020-10-20 01:42:27,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:27" (1/1) ... [2020-10-20 01:42:27,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:27" (1/1) ... [2020-10-20 01:42:27,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:27" (1/1) ... [2020-10-20 01:42:27,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:27" (1/1) ... [2020-10-20 01:42:27,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:42:27,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:42:27,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:42:27,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:42:27,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:27" (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 01:42:27,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:42:27,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:42:27,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:42:27,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:42:28,870 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:42:28,870 INFO L298 CfgBuilder]: Removed 108 assume(true) statements. [2020-10-20 01:42:28,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:42:28 BoogieIcfgContainer [2020-10-20 01:42:28,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:42:28,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:42:28,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:42:28,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:42:28,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:42:27" (1/3) ... [2020-10-20 01:42:28,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43af0395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:42:28, skipping insertion in model container [2020-10-20 01:42:28,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:27" (2/3) ... [2020-10-20 01:42:28,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43af0395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:42:28, skipping insertion in model container [2020-10-20 01:42:28,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:42:28" (3/3) ... [2020-10-20 01:42:28,881 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product35.cil.c [2020-10-20 01:42:28,893 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:42:28,901 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:42:28,915 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:42:28,938 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:42:28,939 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:42:28,939 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:42:28,939 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:42:28,939 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:42:28,940 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:42:28,940 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:42:28,940 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:42:28,968 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2020-10-20 01:42:28,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 01:42:28,974 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:28,975 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 01:42:28,975 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:28,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:28,981 INFO L82 PathProgramCache]: Analyzing trace with hash 339537202, now seen corresponding path program 1 times [2020-10-20 01:42:28,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:28,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278922169] [2020-10-20 01:42:28,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:29,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:29,263 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 01:42:29,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278922169] [2020-10-20 01:42:29,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:29,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:42:29,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527064002] [2020-10-20 01:42:29,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:42:29,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:29,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:42:29,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:42:29,288 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 2 states. [2020-10-20 01:42:29,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:29,321 INFO L93 Difference]: Finished difference Result 164 states and 249 transitions. [2020-10-20 01:42:29,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:42:29,322 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-20 01:42:29,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:29,336 INFO L225 Difference]: With dead ends: 164 [2020-10-20 01:42:29,336 INFO L226 Difference]: Without dead ends: 80 [2020-10-20 01:42:29,341 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 01:42:29,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-20 01:42:29,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-10-20 01:42:29,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-20 01:42:29,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 115 transitions. [2020-10-20 01:42:29,419 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 115 transitions. Word has length 18 [2020-10-20 01:42:29,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:29,419 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 115 transitions. [2020-10-20 01:42:29,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:42:29,420 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2020-10-20 01:42:29,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 01:42:29,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:29,422 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 01:42:29,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:42:29,423 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:29,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:29,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1884723747, now seen corresponding path program 1 times [2020-10-20 01:42:29,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:29,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355380848] [2020-10-20 01:42:29,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:29,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:29,581 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 01:42:29,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355380848] [2020-10-20 01:42:29,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:29,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:42:29,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662800518] [2020-10-20 01:42:29,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:29,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:29,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:29,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:29,586 INFO L87 Difference]: Start difference. First operand 80 states and 115 transitions. Second operand 3 states. [2020-10-20 01:42:29,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:29,598 INFO L93 Difference]: Finished difference Result 80 states and 115 transitions. [2020-10-20 01:42:29,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:29,598 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-20 01:42:29,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:29,599 INFO L225 Difference]: With dead ends: 80 [2020-10-20 01:42:29,600 INFO L226 Difference]: Without dead ends: 38 [2020-10-20 01:42:29,601 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 01:42:29,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-20 01:42:29,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-20 01:42:29,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-20 01:42:29,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2020-10-20 01:42:29,607 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2020-10-20 01:42:29,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:29,607 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2020-10-20 01:42:29,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:29,607 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2020-10-20 01:42:29,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:42:29,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:29,609 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 01:42:29,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:42:29,609 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:29,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:29,610 INFO L82 PathProgramCache]: Analyzing trace with hash -2071848385, now seen corresponding path program 1 times [2020-10-20 01:42:29,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:29,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170935086] [2020-10-20 01:42:29,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:29,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:29,695 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 01:42:29,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170935086] [2020-10-20 01:42:29,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:29,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:42:29,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819935546] [2020-10-20 01:42:29,697 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:29,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:29,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:29,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:29,698 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand 3 states. [2020-10-20 01:42:29,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:29,718 INFO L93 Difference]: Finished difference Result 100 states and 148 transitions. [2020-10-20 01:42:29,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:29,729 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-20 01:42:29,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:29,731 INFO L225 Difference]: With dead ends: 100 [2020-10-20 01:42:29,731 INFO L226 Difference]: Without dead ends: 69 [2020-10-20 01:42:29,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:29,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-20 01:42:29,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2020-10-20 01:42:29,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-20 01:42:29,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 96 transitions. [2020-10-20 01:42:29,752 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 96 transitions. Word has length 24 [2020-10-20 01:42:29,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:29,752 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 96 transitions. [2020-10-20 01:42:29,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:29,753 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 96 transitions. [2020-10-20 01:42:29,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-20 01:42:29,757 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:29,758 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 01:42:29,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:42:29,759 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:29,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:29,759 INFO L82 PathProgramCache]: Analyzing trace with hash 343514617, now seen corresponding path program 1 times [2020-10-20 01:42:29,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:29,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373194839] [2020-10-20 01:42:29,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:29,846 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 01:42:29,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373194839] [2020-10-20 01:42:29,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:29,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:42:29,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137670180] [2020-10-20 01:42:29,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:29,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:29,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:29,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:29,849 INFO L87 Difference]: Start difference. First operand 65 states and 96 transitions. Second operand 3 states. [2020-10-20 01:42:29,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:29,887 INFO L93 Difference]: Finished difference Result 166 states and 251 transitions. [2020-10-20 01:42:29,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:29,888 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-10-20 01:42:29,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:29,890 INFO L225 Difference]: With dead ends: 166 [2020-10-20 01:42:29,890 INFO L226 Difference]: Without dead ends: 108 [2020-10-20 01:42:29,891 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:29,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-20 01:42:29,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 106. [2020-10-20 01:42:29,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-20 01:42:29,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 156 transitions. [2020-10-20 01:42:29,906 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 156 transitions. Word has length 25 [2020-10-20 01:42:29,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:29,906 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 156 transitions. [2020-10-20 01:42:29,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:29,906 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 156 transitions. [2020-10-20 01:42:29,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-20 01:42:29,907 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:29,908 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:29,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:42:29,908 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:29,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:29,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1750340408, now seen corresponding path program 1 times [2020-10-20 01:42:29,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:29,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82256091] [2020-10-20 01:42:29,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:30,024 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 01:42:30,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82256091] [2020-10-20 01:42:30,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:30,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:42:30,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787499709] [2020-10-20 01:42:30,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:30,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:30,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:30,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:30,027 INFO L87 Difference]: Start difference. First operand 106 states and 156 transitions. Second operand 5 states. [2020-10-20 01:42:30,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:30,155 INFO L93 Difference]: Finished difference Result 510 states and 765 transitions. [2020-10-20 01:42:30,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 01:42:30,156 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-20 01:42:30,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:30,160 INFO L225 Difference]: With dead ends: 510 [2020-10-20 01:42:30,160 INFO L226 Difference]: Without dead ends: 411 [2020-10-20 01:42:30,161 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-20 01:42:30,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2020-10-20 01:42:30,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 191. [2020-10-20 01:42:30,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-10-20 01:42:30,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 276 transitions. [2020-10-20 01:42:30,209 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 276 transitions. Word has length 27 [2020-10-20 01:42:30,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:30,210 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 276 transitions. [2020-10-20 01:42:30,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:30,211 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 276 transitions. [2020-10-20 01:42:30,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-20 01:42:30,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:30,218 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:30,218 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:42:30,219 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:30,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:30,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1110481728, now seen corresponding path program 1 times [2020-10-20 01:42:30,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:30,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315306027] [2020-10-20 01:42:30,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:30,343 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 01:42:30,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315306027] [2020-10-20 01:42:30,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:30,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:42:30,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716004722] [2020-10-20 01:42:30,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:30,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:30,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:30,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:30,349 INFO L87 Difference]: Start difference. First operand 191 states and 276 transitions. Second operand 5 states. [2020-10-20 01:42:30,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:30,528 INFO L93 Difference]: Finished difference Result 709 states and 1031 transitions. [2020-10-20 01:42:30,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 01:42:30,530 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-20 01:42:30,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:30,533 INFO L225 Difference]: With dead ends: 709 [2020-10-20 01:42:30,534 INFO L226 Difference]: Without dead ends: 525 [2020-10-20 01:42:30,538 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-20 01:42:30,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2020-10-20 01:42:30,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 189. [2020-10-20 01:42:30,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-20 01:42:30,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 270 transitions. [2020-10-20 01:42:30,583 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 270 transitions. Word has length 28 [2020-10-20 01:42:30,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:30,585 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 270 transitions. [2020-10-20 01:42:30,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:30,590 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 270 transitions. [2020-10-20 01:42:30,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-20 01:42:30,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:30,592 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:30,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 01:42:30,592 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:30,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:30,592 INFO L82 PathProgramCache]: Analyzing trace with hash -2071146496, now seen corresponding path program 1 times [2020-10-20 01:42:30,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:30,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90046977] [2020-10-20 01:42:30,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:30,679 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 01:42:30,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90046977] [2020-10-20 01:42:30,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:30,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:42:30,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972316376] [2020-10-20 01:42:30,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:30,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:30,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:30,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:30,682 INFO L87 Difference]: Start difference. First operand 189 states and 270 transitions. Second operand 5 states. [2020-10-20 01:42:30,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:30,760 INFO L93 Difference]: Finished difference Result 515 states and 728 transitions. [2020-10-20 01:42:30,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:42:30,761 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-10-20 01:42:30,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:30,763 INFO L225 Difference]: With dead ends: 515 [2020-10-20 01:42:30,763 INFO L226 Difference]: Without dead ends: 333 [2020-10-20 01:42:30,764 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 [2020-10-20 01:42:30,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2020-10-20 01:42:30,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 201. [2020-10-20 01:42:30,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-10-20 01:42:30,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 282 transitions. [2020-10-20 01:42:30,783 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 282 transitions. Word has length 32 [2020-10-20 01:42:30,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:30,783 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 282 transitions. [2020-10-20 01:42:30,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:30,784 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 282 transitions. [2020-10-20 01:42:30,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-20 01:42:30,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:30,786 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:30,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 01:42:30,786 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:30,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:30,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1370081918, now seen corresponding path program 1 times [2020-10-20 01:42:30,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:30,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306269460] [2020-10-20 01:42:30,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:30,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:30,847 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 01:42:30,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306269460] [2020-10-20 01:42:30,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:30,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:42:30,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727146440] [2020-10-20 01:42:30,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:30,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:30,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:30,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:30,850 INFO L87 Difference]: Start difference. First operand 201 states and 282 transitions. Second operand 5 states. [2020-10-20 01:42:31,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:31,002 INFO L93 Difference]: Finished difference Result 583 states and 802 transitions. [2020-10-20 01:42:31,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 01:42:31,003 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-10-20 01:42:31,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:31,006 INFO L225 Difference]: With dead ends: 583 [2020-10-20 01:42:31,006 INFO L226 Difference]: Without dead ends: 389 [2020-10-20 01:42:31,007 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-20 01:42:31,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-10-20 01:42:31,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 209. [2020-10-20 01:42:31,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-10-20 01:42:31,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 290 transitions. [2020-10-20 01:42:31,033 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 290 transitions. Word has length 32 [2020-10-20 01:42:31,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:31,033 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 290 transitions. [2020-10-20 01:42:31,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:31,034 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 290 transitions. [2020-10-20 01:42:31,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-20 01:42:31,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:31,035 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:31,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 01:42:31,036 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:31,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:31,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1956887932, now seen corresponding path program 1 times [2020-10-20 01:42:31,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:31,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240360213] [2020-10-20 01:42:31,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:31,113 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 01:42:31,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240360213] [2020-10-20 01:42:31,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:31,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:42:31,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736213466] [2020-10-20 01:42:31,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:31,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:31,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:31,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:31,117 INFO L87 Difference]: Start difference. First operand 209 states and 290 transitions. Second operand 3 states. [2020-10-20 01:42:31,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:31,172 INFO L93 Difference]: Finished difference Result 511 states and 703 transitions. [2020-10-20 01:42:31,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:31,172 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-10-20 01:42:31,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:31,174 INFO L225 Difference]: With dead ends: 511 [2020-10-20 01:42:31,175 INFO L226 Difference]: Without dead ends: 309 [2020-10-20 01:42:31,175 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:31,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-10-20 01:42:31,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2020-10-20 01:42:31,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2020-10-20 01:42:31,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 412 transitions. [2020-10-20 01:42:31,213 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 412 transitions. Word has length 32 [2020-10-20 01:42:31,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:31,214 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 412 transitions. [2020-10-20 01:42:31,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:31,214 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 412 transitions. [2020-10-20 01:42:31,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-20 01:42:31,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:31,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:31,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 01:42:31,217 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:31,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:31,217 INFO L82 PathProgramCache]: Analyzing trace with hash 875175876, now seen corresponding path program 1 times [2020-10-20 01:42:31,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:31,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626116933] [2020-10-20 01:42:31,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:31,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:31,411 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2020-10-20 01:42:31,416 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 01:42:31,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626116933] [2020-10-20 01:42:31,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:31,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:42:31,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525797416] [2020-10-20 01:42:31,419 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:31,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:31,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:31,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:31,421 INFO L87 Difference]: Start difference. First operand 309 states and 412 transitions. Second operand 3 states. [2020-10-20 01:42:31,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:31,488 INFO L93 Difference]: Finished difference Result 447 states and 603 transitions. [2020-10-20 01:42:31,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:31,490 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-10-20 01:42:31,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:31,496 INFO L225 Difference]: With dead ends: 447 [2020-10-20 01:42:31,496 INFO L226 Difference]: Without dead ends: 445 [2020-10-20 01:42:31,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:31,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-10-20 01:42:31,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 370. [2020-10-20 01:42:31,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-10-20 01:42:31,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 504 transitions. [2020-10-20 01:42:31,539 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 504 transitions. Word has length 33 [2020-10-20 01:42:31,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:31,539 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 504 transitions. [2020-10-20 01:42:31,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:31,539 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 504 transitions. [2020-10-20 01:42:31,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-20 01:42:31,541 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:31,541 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:31,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 01:42:31,541 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:31,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:31,542 INFO L82 PathProgramCache]: Analyzing trace with hash 828573398, now seen corresponding path program 1 times [2020-10-20 01:42:31,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:31,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547904420] [2020-10-20 01:42:31,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:31,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:42:31,609 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:42:31,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:42:31,672 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:42:31,727 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 01:42:31,728 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 01:42:31,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-20 01:42:31,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:42:31 BoogieIcfgContainer [2020-10-20 01:42:31,873 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:42:31,873 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:42:31,873 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:42:31,873 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:42:31,874 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:42:28" (3/4) ... [2020-10-20 01:42:31,877 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 01:42:32,033 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:42:32,033 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:42:32,035 INFO L168 Benchmark]: Toolchain (without parser) took 4902.36 ms. Allocated memory was 34.6 MB in the beginning and 79.7 MB in the end (delta: 45.1 MB). Free memory was 10.6 MB in the beginning and 36.4 MB in the end (delta: -25.8 MB). Peak memory consumption was 37.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:32,036 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 33.6 MB. Free memory was 18.7 MB in the beginning and 18.6 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. [2020-10-20 01:42:32,036 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.98 ms. Allocated memory was 34.6 MB in the beginning and 42.5 MB in the end (delta: 7.9 MB). Free memory was 9.7 MB in the beginning and 24.1 MB in the end (delta: -14.5 MB). Peak memory consumption was 8.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:32,037 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.18 ms. Allocated memory is still 42.5 MB. Free memory was 24.1 MB in the beginning and 21.0 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:32,037 INFO L168 Benchmark]: Boogie Preprocessor took 43.90 ms. Allocated memory is still 42.5 MB. Free memory was 21.0 MB in the beginning and 18.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:32,038 INFO L168 Benchmark]: RCFGBuilder took 983.84 ms. Allocated memory was 42.5 MB in the beginning and 47.7 MB in the end (delta: 5.2 MB). Free memory was 18.4 MB in the beginning and 14.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:32,038 INFO L168 Benchmark]: TraceAbstraction took 2999.07 ms. Allocated memory was 47.7 MB in the beginning and 75.5 MB in the end (delta: 27.8 MB). Free memory was 14.5 MB in the beginning and 20.6 MB in the end (delta: -6.1 MB). Peak memory consumption was 21.7 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:32,039 INFO L168 Benchmark]: Witness Printer took 160.35 ms. Allocated memory was 75.5 MB in the beginning and 79.7 MB in the end (delta: 4.2 MB). Free memory was 20.6 MB in the beginning and 36.4 MB in the end (delta: -15.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:32,041 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 33.6 MB. Free memory was 18.7 MB in the beginning and 18.6 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 633.98 ms. Allocated memory was 34.6 MB in the beginning and 42.5 MB in the end (delta: 7.9 MB). Free memory was 9.7 MB in the beginning and 24.1 MB in the end (delta: -14.5 MB). Peak memory consumption was 8.8 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 72.18 ms. Allocated memory is still 42.5 MB. Free memory was 24.1 MB in the beginning and 21.0 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 43.90 ms. Allocated memory is still 42.5 MB. Free memory was 21.0 MB in the beginning and 18.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 983.84 ms. Allocated memory was 42.5 MB in the beginning and 47.7 MB in the end (delta: 5.2 MB). Free memory was 18.4 MB in the beginning and 14.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 14.3 GB. * TraceAbstraction took 2999.07 ms. Allocated memory was 47.7 MB in the beginning and 75.5 MB in the end (delta: 27.8 MB). Free memory was 14.5 MB in the beginning and 20.6 MB in the end (delta: -6.1 MB). Peak memory consumption was 21.7 MB. Max. memory is 14.3 GB. * Witness Printer took 160.35 ms. Allocated memory was 75.5 MB in the beginning and 79.7 MB in the end (delta: 4.2 MB). Free memory was 20.6 MB in the beginning and 36.4 MB in the end (delta: -15.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L418] int pumpRunning = 0; [L419] int systemActive = 1; [L657] int methAndRunningLastTime ; [L743] int cleanupTimeShifts = 4; [L841] int waterLevel = 1; [L842] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L817] int retValue_acc ; [L818] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L725] int retValue_acc ; [L728] retValue_acc = 1 [L729] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L824] tmp = valid_product() [L826] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L662] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L590] int splverifierCounter ; [L591] int tmp ; [L592] int tmp___0 ; [L593] int tmp___1 ; [L594] int tmp___2 ; [L597] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L599] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L601] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L607] tmp = __VERIFIER_nondet_int() [L609] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L859] COND TRUE waterLevel < 2 [L860] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L617] tmp___0 = __VERIFIER_nondet_int() [L619] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L871] COND FALSE !(\read(methaneLevelCritical)) [L874] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L627] tmp___2 = __VERIFIER_nondet_int() [L629] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L426] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L433] COND TRUE \read(systemActive) [L455] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L458] COND TRUE ! pumpRunning [L552] int retValue_acc ; [L553] int tmp ; [L554] int tmp___0 ; [L921] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L924] COND FALSE !(waterLevel < 2) [L928] retValue_acc = 0 [L929] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L558] tmp = isHighWaterSensorDry() [L560] COND FALSE !(\read(tmp)) [L563] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L565] retValue_acc = tmp___0 [L566] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L460] tmp = isHighWaterLevel() [L462] COND TRUE \read(tmp) [L483] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L667] int tmp ; [L668] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = methaneLevelCritical [L884] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L672] tmp = isMethaneLevelCritical() [L674] COND TRUE \read(tmp) [L507] int retValue_acc ; [L510] retValue_acc = pumpRunning [L511] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L676] tmp___0 = isPumpRunning() [L678] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L679] COND FALSE !(\read(methAndRunningLastTime)) [L684] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L599] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L601] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L607] tmp = __VERIFIER_nondet_int() [L609] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L617] tmp___0 = __VERIFIER_nondet_int() [L619] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L627] tmp___2 = __VERIFIER_nondet_int() [L629] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L426] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L847] COND TRUE waterLevel > 0 [L848] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L433] COND TRUE \read(systemActive) [L455] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L458] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L667] int tmp ; [L668] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = methaneLevelCritical [L884] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L672] tmp = isMethaneLevelCritical() [L674] COND TRUE \read(tmp) [L507] int retValue_acc ; [L510] retValue_acc = pumpRunning [L511] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L676] tmp___0 = isPumpRunning() [L678] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L679] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L3] __assert_fail("0", "minepump_spec2_product35.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 87 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.7s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 710 SDtfs, 883 SDslu, 1066 SDs, 0 SdLazy, 124 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=370occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 949 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 321 NumberOfCodeBlocks, 321 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 260 ConstructedInterpolants, 0 QuantifiedInterpolants, 15416 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...