./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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_product43.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d3ef47dc64404f2fae365adb4fa9379fd10f9c50 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-19 21:22:27,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 21:22:27,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 21:22:27,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 21:22:27,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 21:22:27,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 21:22:27,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 21:22:27,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 21:22:27,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 21:22:27,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 21:22:27,884 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 21:22:27,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 21:22:27,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 21:22:27,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 21:22:27,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 21:22:27,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 21:22:27,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 21:22:27,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 21:22:27,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 21:22:27,896 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 21:22:27,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 21:22:27,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 21:22:27,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 21:22:27,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 21:22:27,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 21:22:27,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 21:22:27,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 21:22:27,906 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 21:22:27,906 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 21:22:27,907 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 21:22:27,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 21:22:27,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 21:22:27,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 21:22:27,910 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 21:22:27,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 21:22:27,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 21:22:27,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 21:22:27,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 21:22:27,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 21:22:27,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 21:22:27,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 21:22:27,916 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 21:22:27,932 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 21:22:27,932 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 21:22:27,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 21:22:27,934 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 21:22:27,934 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 21:22:27,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 21:22:27,935 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 21:22:27,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 21:22:27,935 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 21:22:27,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 21:22:27,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 21:22:27,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 21:22:27,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 21:22:27,936 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 21:22:27,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 21:22:27,937 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 21:22:27,937 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 21:22:27,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 21:22:27,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 21:22:27,938 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 21:22:27,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 21:22:27,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 21:22:27,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 21:22:27,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 21:22:27,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 21:22:27,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 21:22:27,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 21:22:27,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 21:22:27,941 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(__VERIFIER_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 -> d3ef47dc64404f2fae365adb4fa9379fd10f9c50 [2019-11-19 21:22:28,253 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 21:22:28,275 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 21:22:28,281 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 21:22:28,286 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 21:22:28,286 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 21:22:28,287 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2019-11-19 21:22:28,357 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f4fbed73/daaa0055d6f44214bd1f9b6ed6685b29/FLAGfb12e09b7 [2019-11-19 21:22:28,874 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 21:22:28,875 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2019-11-19 21:22:28,891 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f4fbed73/daaa0055d6f44214bd1f9b6ed6685b29/FLAGfb12e09b7 [2019-11-19 21:22:29,138 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f4fbed73/daaa0055d6f44214bd1f9b6ed6685b29 [2019-11-19 21:22:29,141 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 21:22:29,143 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 21:22:29,144 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 21:22:29,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 21:22:29,150 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 21:22:29,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:22:29" (1/1) ... [2019-11-19 21:22:29,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5989fe69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:29, skipping insertion in model container [2019-11-19 21:22:29,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:22:29" (1/1) ... [2019-11-19 21:22:29,163 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 21:22:29,216 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 21:22:29,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:22:29,635 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 21:22:29,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:22:29,833 INFO L192 MainTranslator]: Completed translation [2019-11-19 21:22:29,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:29 WrapperNode [2019-11-19 21:22:29,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 21:22:29,834 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 21:22:29,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 21:22:29,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 21:22:29,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:29" (1/1) ... [2019-11-19 21:22:29,881 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:29" (1/1) ... [2019-11-19 21:22:29,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 21:22:29,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 21:22:29,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 21:22:29,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 21:22:29,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:29" (1/1) ... [2019-11-19 21:22:29,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:29" (1/1) ... [2019-11-19 21:22:29,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:29" (1/1) ... [2019-11-19 21:22:29,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:29" (1/1) ... [2019-11-19 21:22:29,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:29" (1/1) ... [2019-11-19 21:22:29,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:29" (1/1) ... [2019-11-19 21:22:29,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:29" (1/1) ... [2019-11-19 21:22:29,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 21:22:29,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 21:22:29,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 21:22:29,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 21:22:29,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:29" (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 [2019-11-19 21:22:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 21:22:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-19 21:22:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 21:22:30,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 21:22:30,983 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 21:22:30,984 INFO L285 CfgBuilder]: Removed 120 assume(true) statements. [2019-11-19 21:22:30,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:22:30 BoogieIcfgContainer [2019-11-19 21:22:30,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 21:22:30,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 21:22:30,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 21:22:30,990 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 21:22:30,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:22:29" (1/3) ... [2019-11-19 21:22:30,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e88596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:22:30, skipping insertion in model container [2019-11-19 21:22:30,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:29" (2/3) ... [2019-11-19 21:22:30,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e88596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:22:30, skipping insertion in model container [2019-11-19 21:22:30,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:22:30" (3/3) ... [2019-11-19 21:22:30,995 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product43.cil.c [2019-11-19 21:22:31,005 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 21:22:31,013 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-19 21:22:31,025 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-19 21:22:31,052 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 21:22:31,053 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 21:22:31,053 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 21:22:31,054 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 21:22:31,054 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 21:22:31,054 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 21:22:31,054 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 21:22:31,055 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 21:22:31,085 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states. [2019-11-19 21:22:31,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-19 21:22:31,095 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:22:31,097 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:22:31,097 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:22:31,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:22:31,103 INFO L82 PathProgramCache]: Analyzing trace with hash -1388908220, now seen corresponding path program 1 times [2019-11-19 21:22:31,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:22:31,112 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305820133] [2019-11-19 21:22:31,113 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:22:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:22:31,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:22:31,386 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305820133] [2019-11-19 21:22:31,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:22:31,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 21:22:31,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806408291] [2019-11-19 21:22:31,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 21:22:31,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 21:22:31,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 21:22:31,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 21:22:31,407 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 2 states. [2019-11-19 21:22:31,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:22:31,437 INFO L93 Difference]: Finished difference Result 179 states and 270 transitions. [2019-11-19 21:22:31,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 21:22:31,438 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-19 21:22:31,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:22:31,452 INFO L225 Difference]: With dead ends: 179 [2019-11-19 21:22:31,453 INFO L226 Difference]: Without dead ends: 89 [2019-11-19 21:22:31,457 INFO L630 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 [2019-11-19 21:22:31,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-11-19 21:22:31,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2019-11-19 21:22:31,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-11-19 21:22:31,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 127 transitions. [2019-11-19 21:22:31,507 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 127 transitions. Word has length 18 [2019-11-19 21:22:31,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:22:31,508 INFO L462 AbstractCegarLoop]: Abstraction has 89 states and 127 transitions. [2019-11-19 21:22:31,508 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 21:22:31,508 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions. [2019-11-19 21:22:31,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-19 21:22:31,510 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:22:31,510 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:22:31,510 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:22:31,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:22:31,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1607744189, now seen corresponding path program 1 times [2019-11-19 21:22:31,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:22:31,511 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917682669] [2019-11-19 21:22:31,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:22:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:22:31,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:22:31,674 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917682669] [2019-11-19 21:22:31,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:22:31,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 21:22:31,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935565388] [2019-11-19 21:22:31,679 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 21:22:31,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 21:22:31,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 21:22:31,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 21:22:31,681 INFO L87 Difference]: Start difference. First operand 89 states and 127 transitions. Second operand 3 states. [2019-11-19 21:22:31,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:22:31,699 INFO L93 Difference]: Finished difference Result 89 states and 127 transitions. [2019-11-19 21:22:31,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 21:22:31,700 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-19 21:22:31,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:22:31,701 INFO L225 Difference]: With dead ends: 89 [2019-11-19 21:22:31,701 INFO L226 Difference]: Without dead ends: 41 [2019-11-19 21:22:31,703 INFO L630 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 [2019-11-19 21:22:31,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-19 21:22:31,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-11-19 21:22:31,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-11-19 21:22:31,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2019-11-19 21:22:31,713 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 19 [2019-11-19 21:22:31,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:22:31,714 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2019-11-19 21:22:31,714 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 21:22:31,714 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2019-11-19 21:22:31,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-19 21:22:31,716 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:22:31,716 INFO L410 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] [2019-11-19 21:22:31,717 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:22:31,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:22:31,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1417220031, now seen corresponding path program 1 times [2019-11-19 21:22:31,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:22:31,719 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130342966] [2019-11-19 21:22:31,719 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:22:31,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:22:31,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:22:31,918 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130342966] [2019-11-19 21:22:31,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:22:31,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 21:22:31,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052198862] [2019-11-19 21:22:31,919 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-19 21:22:31,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 21:22:31,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 21:22:31,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-19 21:22:31,922 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand 6 states. [2019-11-19 21:22:32,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:22:32,077 INFO L93 Difference]: Finished difference Result 133 states and 196 transitions. [2019-11-19 21:22:32,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 21:22:32,077 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-19 21:22:32,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:22:32,079 INFO L225 Difference]: With dead ends: 133 [2019-11-19 21:22:32,079 INFO L226 Difference]: Without dead ends: 99 [2019-11-19 21:22:32,080 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-19 21:22:32,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-11-19 21:22:32,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 61. [2019-11-19 21:22:32,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-11-19 21:22:32,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 89 transitions. [2019-11-19 21:22:32,094 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 89 transitions. Word has length 24 [2019-11-19 21:22:32,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:22:32,095 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 89 transitions. [2019-11-19 21:22:32,095 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-19 21:22:32,095 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 89 transitions. [2019-11-19 21:22:32,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-19 21:22:32,096 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:22:32,097 INFO L410 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] [2019-11-19 21:22:32,097 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:22:32,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:22:32,097 INFO L82 PathProgramCache]: Analyzing trace with hash -462384263, now seen corresponding path program 1 times [2019-11-19 21:22:32,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:22:32,098 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682709202] [2019-11-19 21:22:32,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:22:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:22:32,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:22:32,173 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682709202] [2019-11-19 21:22:32,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:22:32,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 21:22:32,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897036917] [2019-11-19 21:22:32,175 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 21:22:32,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 21:22:32,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 21:22:32,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 21:22:32,177 INFO L87 Difference]: Start difference. First operand 61 states and 89 transitions. Second operand 3 states. [2019-11-19 21:22:32,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:22:32,210 INFO L93 Difference]: Finished difference Result 137 states and 203 transitions. [2019-11-19 21:22:32,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 21:22:32,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-11-19 21:22:32,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:22:32,213 INFO L225 Difference]: With dead ends: 137 [2019-11-19 21:22:32,213 INFO L226 Difference]: Without dead ends: 83 [2019-11-19 21:22:32,214 INFO L630 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 [2019-11-19 21:22:32,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-11-19 21:22:32,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2019-11-19 21:22:32,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-11-19 21:22:32,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 116 transitions. [2019-11-19 21:22:32,227 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 116 transitions. Word has length 25 [2019-11-19 21:22:32,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:22:32,227 INFO L462 AbstractCegarLoop]: Abstraction has 81 states and 116 transitions. [2019-11-19 21:22:32,228 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 21:22:32,228 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 116 transitions. [2019-11-19 21:22:32,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-19 21:22:32,229 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:22:32,229 INFO L410 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] [2019-11-19 21:22:32,230 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:22:32,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:22:32,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1738728008, now seen corresponding path program 1 times [2019-11-19 21:22:32,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:22:32,231 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093513072] [2019-11-19 21:22:32,231 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:22:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:22:32,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:22:32,335 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093513072] [2019-11-19 21:22:32,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:22:32,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 21:22:32,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766651848] [2019-11-19 21:22:32,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 21:22:32,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 21:22:32,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 21:22:32,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 21:22:32,337 INFO L87 Difference]: Start difference. First operand 81 states and 116 transitions. Second operand 5 states. [2019-11-19 21:22:32,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:22:32,613 INFO L93 Difference]: Finished difference Result 378 states and 552 transitions. [2019-11-19 21:22:32,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-19 21:22:32,614 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-19 21:22:32,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:22:32,617 INFO L225 Difference]: With dead ends: 378 [2019-11-19 21:22:32,617 INFO L226 Difference]: Without dead ends: 304 [2019-11-19 21:22:32,618 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-19 21:22:32,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2019-11-19 21:22:32,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 144. [2019-11-19 21:22:32,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-11-19 21:22:32,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 203 transitions. [2019-11-19 21:22:32,673 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 203 transitions. Word has length 27 [2019-11-19 21:22:32,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:22:32,675 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 203 transitions. [2019-11-19 21:22:32,675 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 21:22:32,675 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 203 transitions. [2019-11-19 21:22:32,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-19 21:22:32,679 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:22:32,680 INFO L410 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] [2019-11-19 21:22:32,680 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:22:32,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:22:32,681 INFO L82 PathProgramCache]: Analyzing trace with hash 304582848, now seen corresponding path program 1 times [2019-11-19 21:22:32,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:22:32,681 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865879673] [2019-11-19 21:22:32,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:22:32,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:22:32,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:22:32,791 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865879673] [2019-11-19 21:22:32,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:22:32,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 21:22:32,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620635814] [2019-11-19 21:22:32,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 21:22:32,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 21:22:32,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 21:22:32,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 21:22:32,793 INFO L87 Difference]: Start difference. First operand 144 states and 203 transitions. Second operand 5 states. [2019-11-19 21:22:32,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:22:32,940 INFO L93 Difference]: Finished difference Result 529 states and 751 transitions. [2019-11-19 21:22:32,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-19 21:22:32,940 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2019-11-19 21:22:32,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:22:32,943 INFO L225 Difference]: With dead ends: 529 [2019-11-19 21:22:32,943 INFO L226 Difference]: Without dead ends: 392 [2019-11-19 21:22:32,945 INFO L630 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 [2019-11-19 21:22:32,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2019-11-19 21:22:32,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 142. [2019-11-19 21:22:32,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-11-19 21:22:32,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 197 transitions. [2019-11-19 21:22:32,969 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 197 transitions. Word has length 28 [2019-11-19 21:22:32,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:22:32,970 INFO L462 AbstractCegarLoop]: Abstraction has 142 states and 197 transitions. [2019-11-19 21:22:32,970 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 21:22:32,970 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 197 transitions. [2019-11-19 21:22:32,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-19 21:22:32,971 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:22:32,972 INFO L410 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, 1, 1] [2019-11-19 21:22:32,972 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:22:32,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:22:32,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1643402821, now seen corresponding path program 1 times [2019-11-19 21:22:32,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:22:32,973 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911116046] [2019-11-19 21:22:32,973 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:22:32,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:22:33,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:22:33,051 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911116046] [2019-11-19 21:22:33,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:22:33,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 21:22:33,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11378517] [2019-11-19 21:22:33,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 21:22:33,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 21:22:33,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 21:22:33,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 21:22:33,059 INFO L87 Difference]: Start difference. First operand 142 states and 197 transitions. Second operand 5 states. [2019-11-19 21:22:33,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:22:33,132 INFO L93 Difference]: Finished difference Result 429 states and 593 transitions. [2019-11-19 21:22:33,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 21:22:33,133 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2019-11-19 21:22:33,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:22:33,137 INFO L225 Difference]: With dead ends: 429 [2019-11-19 21:22:33,137 INFO L226 Difference]: Without dead ends: 294 [2019-11-19 21:22:33,139 INFO L630 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 [2019-11-19 21:22:33,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2019-11-19 21:22:33,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 148. [2019-11-19 21:22:33,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-11-19 21:22:33,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 203 transitions. [2019-11-19 21:22:33,169 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 203 transitions. Word has length 35 [2019-11-19 21:22:33,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:22:33,169 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 203 transitions. [2019-11-19 21:22:33,170 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 21:22:33,170 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 203 transitions. [2019-11-19 21:22:33,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-19 21:22:33,174 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:22:33,174 INFO L410 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, 1, 1] [2019-11-19 21:22:33,175 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:22:33,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:22:33,175 INFO L82 PathProgramCache]: Analyzing trace with hash 632285571, now seen corresponding path program 1 times [2019-11-19 21:22:33,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:22:33,176 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608839762] [2019-11-19 21:22:33,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:22:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:22:33,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:22:33,235 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608839762] [2019-11-19 21:22:33,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:22:33,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 21:22:33,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215040735] [2019-11-19 21:22:33,237 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 21:22:33,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 21:22:33,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 21:22:33,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 21:22:33,238 INFO L87 Difference]: Start difference. First operand 148 states and 203 transitions. Second operand 4 states. [2019-11-19 21:22:33,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:22:33,290 INFO L93 Difference]: Finished difference Result 373 states and 511 transitions. [2019-11-19 21:22:33,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 21:22:33,291 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2019-11-19 21:22:33,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:22:33,293 INFO L225 Difference]: With dead ends: 373 [2019-11-19 21:22:33,293 INFO L226 Difference]: Without dead ends: 232 [2019-11-19 21:22:33,295 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-19 21:22:33,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2019-11-19 21:22:33,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 152. [2019-11-19 21:22:33,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-11-19 21:22:33,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 207 transitions. [2019-11-19 21:22:33,316 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 207 transitions. Word has length 35 [2019-11-19 21:22:33,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:22:33,316 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 207 transitions. [2019-11-19 21:22:33,316 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 21:22:33,316 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 207 transitions. [2019-11-19 21:22:33,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-19 21:22:33,320 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:22:33,320 INFO L410 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, 1, 1] [2019-11-19 21:22:33,320 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:22:33,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:22:33,321 INFO L82 PathProgramCache]: Analyzing trace with hash -388782783, now seen corresponding path program 1 times [2019-11-19 21:22:33,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:22:33,323 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761340860] [2019-11-19 21:22:33,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:22:33,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:22:33,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:22:33,376 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761340860] [2019-11-19 21:22:33,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:22:33,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 21:22:33,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307427372] [2019-11-19 21:22:33,377 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 21:22:33,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 21:22:33,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 21:22:33,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 21:22:33,380 INFO L87 Difference]: Start difference. First operand 152 states and 207 transitions. Second operand 3 states. [2019-11-19 21:22:33,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:22:33,426 INFO L93 Difference]: Finished difference Result 383 states and 521 transitions. [2019-11-19 21:22:33,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 21:22:33,427 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2019-11-19 21:22:33,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:22:33,428 INFO L225 Difference]: With dead ends: 383 [2019-11-19 21:22:33,429 INFO L226 Difference]: Without dead ends: 238 [2019-11-19 21:22:33,429 INFO L630 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 [2019-11-19 21:22:33,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2019-11-19 21:22:33,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2019-11-19 21:22:33,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2019-11-19 21:22:33,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 315 transitions. [2019-11-19 21:22:33,461 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 315 transitions. Word has length 35 [2019-11-19 21:22:33,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:22:33,461 INFO L462 AbstractCegarLoop]: Abstraction has 238 states and 315 transitions. [2019-11-19 21:22:33,461 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 21:22:33,462 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 315 transitions. [2019-11-19 21:22:33,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-19 21:22:33,463 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:22:33,464 INFO L410 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, 1, 1, 1] [2019-11-19 21:22:33,464 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:22:33,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:22:33,464 INFO L82 PathProgramCache]: Analyzing trace with hash -713441279, now seen corresponding path program 1 times [2019-11-19 21:22:33,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:22:33,465 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505624707] [2019-11-19 21:22:33,466 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:22:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:22:33,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:22:33,619 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505624707] [2019-11-19 21:22:33,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:22:33,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-19 21:22:33,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795390689] [2019-11-19 21:22:33,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-19 21:22:33,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 21:22:33,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 21:22:33,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-19 21:22:33,623 INFO L87 Difference]: Start difference. First operand 238 states and 315 transitions. Second operand 8 states. [2019-11-19 21:22:34,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:22:34,043 INFO L93 Difference]: Finished difference Result 877 states and 1165 transitions. [2019-11-19 21:22:34,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-19 21:22:34,044 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2019-11-19 21:22:34,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:22:34,049 INFO L225 Difference]: With dead ends: 877 [2019-11-19 21:22:34,050 INFO L226 Difference]: Without dead ends: 646 [2019-11-19 21:22:34,051 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2019-11-19 21:22:34,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2019-11-19 21:22:34,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 238. [2019-11-19 21:22:34,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2019-11-19 21:22:34,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 309 transitions. [2019-11-19 21:22:34,089 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 309 transitions. Word has length 36 [2019-11-19 21:22:34,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:22:34,089 INFO L462 AbstractCegarLoop]: Abstraction has 238 states and 309 transitions. [2019-11-19 21:22:34,090 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-19 21:22:34,090 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 309 transitions. [2019-11-19 21:22:34,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-19 21:22:34,091 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:22:34,091 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2019-11-19 21:22:34,091 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:22:34,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:22:34,092 INFO L82 PathProgramCache]: Analyzing trace with hash -838060658, now seen corresponding path program 1 times [2019-11-19 21:22:34,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:22:34,092 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012774977] [2019-11-19 21:22:34,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:22:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:22:34,145 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:22:34,145 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012774977] [2019-11-19 21:22:34,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:22:34,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 21:22:34,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271186615] [2019-11-19 21:22:34,146 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 21:22:34,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 21:22:34,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 21:22:34,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 21:22:34,147 INFO L87 Difference]: Start difference. First operand 238 states and 309 transitions. Second operand 3 states. [2019-11-19 21:22:34,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:22:34,206 INFO L93 Difference]: Finished difference Result 327 states and 426 transitions. [2019-11-19 21:22:34,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 21:22:34,206 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-11-19 21:22:34,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:22:34,209 INFO L225 Difference]: With dead ends: 327 [2019-11-19 21:22:34,210 INFO L226 Difference]: Without dead ends: 325 [2019-11-19 21:22:34,211 INFO L630 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 [2019-11-19 21:22:34,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2019-11-19 21:22:34,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 258. [2019-11-19 21:22:34,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2019-11-19 21:22:34,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 339 transitions. [2019-11-19 21:22:34,241 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 339 transitions. Word has length 51 [2019-11-19 21:22:34,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:22:34,242 INFO L462 AbstractCegarLoop]: Abstraction has 258 states and 339 transitions. [2019-11-19 21:22:34,242 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 21:22:34,242 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 339 transitions. [2019-11-19 21:22:34,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-11-19 21:22:34,243 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:22:34,243 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-11-19 21:22:34,244 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:22:34,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:22:34,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1134302103, now seen corresponding path program 1 times [2019-11-19 21:22:34,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:22:34,246 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184747157] [2019-11-19 21:22:34,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:22:34,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 21:22:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 21:22:34,496 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 21:22:34,496 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 21:22:34,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:22:34 BoogieIcfgContainer [2019-11-19 21:22:34,670 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 21:22:34,670 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 21:22:34,671 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 21:22:34,671 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 21:22:34,671 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:22:30" (3/4) ... [2019-11-19 21:22:34,675 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-19 21:22:34,870 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 21:22:34,871 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 21:22:34,873 INFO L168 Benchmark]: Toolchain (without parser) took 5729.82 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 224.4 MB). Free memory was 961.7 MB in the beginning and 1.0 GB in the end (delta: -51.7 MB). Peak memory consumption was 172.7 MB. Max. memory is 11.5 GB. [2019-11-19 21:22:34,874 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:22:34,874 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -167.5 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2019-11-19 21:22:34,875 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-19 21:22:34,875 INFO L168 Benchmark]: Boogie Preprocessor took 52.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:22:34,876 INFO L168 Benchmark]: RCFGBuilder took 1009.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 64.2 MB). Peak memory consumption was 64.2 MB. Max. memory is 11.5 GB. [2019-11-19 21:22:34,876 INFO L168 Benchmark]: TraceAbstraction took 3683.62 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 77.1 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 14.1 MB). Peak memory consumption was 91.1 MB. Max. memory is 11.5 GB. [2019-11-19 21:22:34,877 INFO L168 Benchmark]: Witness Printer took 200.47 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 11.5 GB. [2019-11-19 21:22:34,879 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 689.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -167.5 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 89.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1009.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 64.2 MB). Peak memory consumption was 64.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3683.62 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 77.1 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 14.1 MB). Peak memory consumption was 91.1 MB. Max. memory is 11.5 GB. * Witness Printer took 200.47 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 946]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L310] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L507] int cleanupTimeShifts = 4; [L648] int methAndRunningLastTime ; [L757] int pumpRunning = 0; [L758] int systemActive = 1; [L588] int retValue_acc ; [L589] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L637] int retValue_acc ; [L640] retValue_acc = 1 [L641] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L595] tmp = valid_product() [L597] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L653] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L689] int splverifierCounter ; [L690] int tmp ; [L691] int tmp___0 ; [L692] int tmp___1 ; [L693] int tmp___2 ; [L696] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L698] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L700] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L706] tmp = __VERIFIER_nondet_int() [L708] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L716] tmp___0 = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L726] tmp___2 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L764] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L771] COND TRUE \read(systemActive) [L793] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L796] COND TRUE ! pumpRunning [L908] int retValue_acc ; [L909] int tmp ; [L910] int tmp___0 ; [L127] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L914] tmp = isHighWaterSensorDry() [L916] COND FALSE !(\read(tmp)) [L919] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L921] retValue_acc = tmp___0 [L922] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L798] tmp = isHighWaterLevel() [L800] COND TRUE \read(tmp) [L827] int tmp ; [L852] int retValue_acc ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L856] retValue_acc = isMethaneLevelCritical() [L858] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L831] tmp = isMethaneAlarm() [L833] COND FALSE !(\read(tmp)) [L821] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L658] int tmp ; [L659] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L663] tmp = isMethaneLevelCritical() [L665] COND FALSE !(\read(tmp)) [L681] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L698] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L700] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L706] tmp = __VERIFIER_nondet_int() [L708] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L716] tmp___0 = __VERIFIER_nondet_int() [L718] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L77] COND FALSE !(\read(methaneLevelCritical)) [L80] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L726] tmp___2 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L764] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L771] COND TRUE \read(systemActive) [L793] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L796] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L658] int tmp ; [L659] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L663] tmp = isMethaneLevelCritical() [L665] COND TRUE \read(tmp) [L863] int retValue_acc ; [L866] retValue_acc = pumpRunning [L867] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L667] tmp___0 = isPumpRunning() [L669] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L670] COND FALSE !(\read(methAndRunningLastTime)) [L675] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L698] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L700] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L706] tmp = __VERIFIER_nondet_int() [L708] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L716] tmp___0 = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L726] tmp___2 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L764] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L771] COND TRUE \read(systemActive) [L793] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L796] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L658] int tmp ; [L659] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L663] tmp = isMethaneLevelCritical() [L665] COND TRUE \read(tmp) [L863] int retValue_acc ; [L866] retValue_acc = pumpRunning [L867] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L667] tmp___0 = isPumpRunning() [L669] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L670] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L946] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 93 locations, 3 error locations. Result: UNSAFE, OverallTime: 3.6s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 944 SDtfs, 1258 SDslu, 1857 SDs, 0 SdLazy, 217 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=258occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 1151 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 402 NumberOfCodeBlocks, 402 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 322 ConstructedInterpolants, 0 QuantifiedInterpolants, 19852 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 14/14 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...