./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 68cd1f850011693bbaeee4c1a646df481d01e204 ........................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 68cd1f850011693bbaeee4c1a646df481d01e204 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 08:09:40,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 08:09:40,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 08:09:40,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 08:09:40,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 08:09:40,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 08:09:40,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 08:09:40,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 08:09:40,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 08:09:40,178 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 08:09:40,179 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 08:09:40,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 08:09:40,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 08:09:40,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 08:09:40,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 08:09:40,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 08:09:40,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 08:09:40,185 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 08:09:40,187 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 08:09:40,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 08:09:40,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 08:09:40,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 08:09:40,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 08:09:40,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 08:09:40,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 08:09:40,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 08:09:40,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 08:09:40,198 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 08:09:40,198 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 08:09:40,199 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 08:09:40,199 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 08:09:40,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 08:09:40,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 08:09:40,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 08:09:40,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 08:09:40,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 08:09:40,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 08:09:40,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 08:09:40,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 08:09:40,203 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 08:09:40,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 08:09:40,204 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 08:09:40,222 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 08:09:40,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 08:09:40,223 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 08:09:40,223 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 08:09:40,223 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 08:09:40,223 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 08:09:40,224 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 08:09:40,224 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 08:09:40,224 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 08:09:40,224 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 08:09:40,224 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 08:09:40,224 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 08:09:40,224 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 08:09:40,224 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 08:09:40,224 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 08:09:40,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 08:09:40,225 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 08:09:40,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 08:09:40,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 08:09:40,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 08:09:40,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 08:09:40,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 08:09:40,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 08:09:40,226 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 08:09:40,226 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 08:09:40,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 08:09:40,226 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 08:09:40,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 08:09:40,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 08:09:40,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 08:09:40,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 08:09:40,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 08:09:40,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 08:09:40,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 08:09:40,227 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 08:09:40,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 08:09:40,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 08:09:40,227 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 08:09:40,227 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 08:09:40,227 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68cd1f850011693bbaeee4c1a646df481d01e204 [2020-12-09 08:09:40,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 08:09:40,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 08:09:40,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 08:09:40,438 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 08:09:40,439 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 08:09:40,440 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c [2020-12-09 08:09:40,479 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/data/9e3703177/19471839377b4d47b9864fecc88c9c24/FLAGf037d649d [2020-12-09 08:09:40,873 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 08:09:40,873 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c [2020-12-09 08:09:40,883 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/data/9e3703177/19471839377b4d47b9864fecc88c9c24/FLAGf037d649d [2020-12-09 08:09:40,892 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/data/9e3703177/19471839377b4d47b9864fecc88c9c24 [2020-12-09 08:09:40,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 08:09:40,895 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 08:09:40,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 08:09:40,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 08:09:40,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 08:09:40,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:09:40" (1/1) ... [2020-12-09 08:09:40,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d26b4ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:09:40, skipping insertion in model container [2020-12-09 08:09:40,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:09:40" (1/1) ... [2020-12-09 08:09:40,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 08:09:40,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 08:09:41,128 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c[20512,20525] [2020-12-09 08:09:41,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 08:09:41,141 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-12-09 08:09:41,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@72fb0123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:09:41, skipping insertion in model container [2020-12-09 08:09:41,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 08:09:41,142 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-12-09 08:09:41,143 INFO L168 Benchmark]: Toolchain (without parser) took 247.21 ms. Allocated memory is still 115.3 MB. Free memory was 76.0 MB in the beginning and 88.2 MB in the end (delta: -12.3 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2020-12-09 08:09:41,144 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 115.3 MB. Free memory is still 93.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 08:09:41,144 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.30 ms. Allocated memory is still 115.3 MB. Free memory was 75.7 MB in the beginning and 88.2 MB in the end (delta: -12.5 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2020-12-09 08:09:41,145 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 115.3 MB. Free memory is still 93.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 245.30 ms. Allocated memory is still 115.3 MB. Free memory was 75.7 MB in the beginning and 88.2 MB in the end (delta: -12.5 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 747]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 08:09:42,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 08:09:42,489 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 08:09:42,521 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 08:09:42,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 08:09:42,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 08:09:42,525 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 08:09:42,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 08:09:42,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 08:09:42,530 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 08:09:42,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 08:09:42,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 08:09:42,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 08:09:42,535 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 08:09:42,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 08:09:42,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 08:09:42,538 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 08:09:42,539 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 08:09:42,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 08:09:42,544 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 08:09:42,546 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 08:09:42,547 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 08:09:42,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 08:09:42,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 08:09:42,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 08:09:42,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 08:09:42,553 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 08:09:42,554 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 08:09:42,555 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 08:09:42,556 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 08:09:42,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 08:09:42,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 08:09:42,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 08:09:42,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 08:09:42,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 08:09:42,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 08:09:42,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 08:09:42,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 08:09:42,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 08:09:42,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 08:09:42,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 08:09:42,564 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 08:09:42,586 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 08:09:42,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 08:09:42,587 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 08:09:42,587 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 08:09:42,587 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 08:09:42,587 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 08:09:42,587 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 08:09:42,587 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 08:09:42,587 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 08:09:42,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 08:09:42,588 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 08:09:42,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 08:09:42,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 08:09:42,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 08:09:42,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 08:09:42,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 08:09:42,589 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 08:09:42,589 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 08:09:42,589 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 08:09:42,590 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 08:09:42,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 08:09:42,590 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 08:09:42,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 08:09:42,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 08:09:42,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 08:09:42,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 08:09:42,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 08:09:42,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 08:09:42,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 08:09:42,591 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 08:09:42,591 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 08:09:42,591 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 08:09:42,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 08:09:42,591 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 08:09:42,591 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 08:09:42,592 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68cd1f850011693bbaeee4c1a646df481d01e204 [2020-12-09 08:09:42,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 08:09:42,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 08:09:42,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 08:09:42,842 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 08:09:42,843 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 08:09:42,843 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c [2020-12-09 08:09:42,887 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/data/7833813e5/8d76fe0af7ed48e799f62e708852ae4a/FLAGfa549c2fa [2020-12-09 08:09:43,296 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 08:09:43,297 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c [2020-12-09 08:09:43,308 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/data/7833813e5/8d76fe0af7ed48e799f62e708852ae4a/FLAGfa549c2fa [2020-12-09 08:09:43,320 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/data/7833813e5/8d76fe0af7ed48e799f62e708852ae4a [2020-12-09 08:09:43,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 08:09:43,324 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 08:09:43,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 08:09:43,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 08:09:43,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 08:09:43,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:09:43" (1/1) ... [2020-12-09 08:09:43,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a28b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:09:43, skipping insertion in model container [2020-12-09 08:09:43,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:09:43" (1/1) ... [2020-12-09 08:09:43,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 08:09:43,368 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 08:09:43,581 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c[20512,20525] [2020-12-09 08:09:43,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 08:09:43,597 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-12-09 08:09:43,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 08:09:43,648 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c[20512,20525] [2020-12-09 08:09:43,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 08:09:43,653 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 08:09:43,692 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c[20512,20525] [2020-12-09 08:09:43,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 08:09:43,730 INFO L208 MainTranslator]: Completed translation [2020-12-09 08:09:43,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:09:43 WrapperNode [2020-12-09 08:09:43,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 08:09:43,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 08:09:43,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 08:09:43,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 08:09:43,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:09:43" (1/1) ... [2020-12-09 08:09:43,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:09:43" (1/1) ... [2020-12-09 08:09:43,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 08:09:43,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 08:09:43,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 08:09:43,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 08:09:43,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:09:43" (1/1) ... [2020-12-09 08:09:43,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:09:43" (1/1) ... [2020-12-09 08:09:43,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:09:43" (1/1) ... [2020-12-09 08:09:43,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:09:43" (1/1) ... [2020-12-09 08:09:43,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:09:43" (1/1) ... [2020-12-09 08:09:43,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:09:43" (1/1) ... [2020-12-09 08:09:43,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:09:43" (1/1) ... [2020-12-09 08:09:43,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 08:09:43,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 08:09:43,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 08:09:43,885 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 08:09:43,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:09:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/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 [2020-12-09 08:09:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 08:09:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 08:09:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 08:09:43,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 08:09:46,269 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 08:09:46,269 INFO L299 CfgBuilder]: Removed 902 assume(true) statements. [2020-12-09 08:09:46,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:09:46 BoogieIcfgContainer [2020-12-09 08:09:46,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 08:09:46,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 08:09:46,274 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 08:09:46,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 08:09:46,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 08:09:43" (1/3) ... [2020-12-09 08:09:46,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e1c69f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:09:46, skipping insertion in model container [2020-12-09 08:09:46,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:09:43" (2/3) ... [2020-12-09 08:09:46,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e1c69f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:09:46, skipping insertion in model container [2020-12-09 08:09:46,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:09:46" (3/3) ... [2020-12-09 08:09:46,279 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_productSimulator.cil.c [2020-12-09 08:09:46,292 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 08:09:46,295 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-09 08:09:46,304 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-09 08:09:46,326 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 08:09:46,327 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 08:09:46,327 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 08:09:46,327 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 08:09:46,327 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 08:09:46,327 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 08:09:46,327 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 08:09:46,327 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 08:09:46,347 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states. [2020-12-09 08:09:46,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-09 08:09:46,353 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:09:46,353 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] [2020-12-09 08:09:46,354 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:09:46,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:09:46,358 INFO L82 PathProgramCache]: Analyzing trace with hash -434502313, now seen corresponding path program 1 times [2020-12-09 08:09:46,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:09:46,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084505138] [2020-12-09 08:09:46,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 08:09:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:09:46,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 08:09:46,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:09:46,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:09:46,603 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:09:46,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2084505138] [2020-12-09 08:09:46,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:09:46,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 08:09:46,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376602314] [2020-12-09 08:09:46,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 08:09:46,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:09:46,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 08:09:46,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 08:09:46,624 INFO L87 Difference]: Start difference. First operand 474 states. Second operand 2 states. [2020-12-09 08:09:46,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:09:46,708 INFO L93 Difference]: Finished difference Result 934 states and 1467 transitions. [2020-12-09 08:09:46,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 08:09:46,709 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2020-12-09 08:09:46,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:09:46,727 INFO L225 Difference]: With dead ends: 934 [2020-12-09 08:09:46,727 INFO L226 Difference]: Without dead ends: 470 [2020-12-09 08:09:46,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 08:09:46,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-12-09 08:09:46,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2020-12-09 08:09:46,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2020-12-09 08:09:46,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 729 transitions. [2020-12-09 08:09:46,804 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 729 transitions. Word has length 25 [2020-12-09 08:09:46,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:09:46,805 INFO L481 AbstractCegarLoop]: Abstraction has 470 states and 729 transitions. [2020-12-09 08:09:46,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 08:09:46,805 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 729 transitions. [2020-12-09 08:09:46,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-09 08:09:46,807 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:09:46,807 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 08:09:47,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 08:09:47,008 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:09:47,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:09:47,009 INFO L82 PathProgramCache]: Analyzing trace with hash 10066668, now seen corresponding path program 1 times [2020-12-09 08:09:47,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:09:47,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080801664] [2020-12-09 08:09:47,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 08:09:47,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:09:47,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 08:09:47,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:09:47,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:09:47,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:09:47,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1080801664] [2020-12-09 08:09:47,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:09:47,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 08:09:47,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746579170] [2020-12-09 08:09:47,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 08:09:47,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:09:47,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 08:09:47,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:09:47,194 INFO L87 Difference]: Start difference. First operand 470 states and 729 transitions. Second operand 3 states. [2020-12-09 08:09:47,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:09:47,222 INFO L93 Difference]: Finished difference Result 470 states and 729 transitions. [2020-12-09 08:09:47,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 08:09:47,223 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-12-09 08:09:47,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:09:47,225 INFO L225 Difference]: With dead ends: 470 [2020-12-09 08:09:47,225 INFO L226 Difference]: Without dead ends: 174 [2020-12-09 08:09:47,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:09:47,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-12-09 08:09:47,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2020-12-09 08:09:47,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-12-09 08:09:47,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 266 transitions. [2020-12-09 08:09:47,239 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 266 transitions. Word has length 26 [2020-12-09 08:09:47,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:09:47,240 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 266 transitions. [2020-12-09 08:09:47,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 08:09:47,240 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 266 transitions. [2020-12-09 08:09:47,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-09 08:09:47,241 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:09:47,242 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] [2020-12-09 08:09:47,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 08:09:47,443 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:09:47,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:09:47,445 INFO L82 PathProgramCache]: Analyzing trace with hash 2146837231, now seen corresponding path program 1 times [2020-12-09 08:09:47,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:09:47,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [834608389] [2020-12-09 08:09:47,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 08:09:47,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:09:47,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 08:09:47,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:09:47,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:09:47,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:09:47,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [834608389] [2020-12-09 08:09:47,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:09:47,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 08:09:47,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469407229] [2020-12-09 08:09:47,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 08:09:47,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:09:47,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 08:09:47,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:09:47,721 INFO L87 Difference]: Start difference. First operand 174 states and 266 transitions. Second operand 3 states. [2020-12-09 08:09:47,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:09:47,753 INFO L93 Difference]: Finished difference Result 494 states and 770 transitions. [2020-12-09 08:09:47,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 08:09:47,754 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-12-09 08:09:47,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:09:47,757 INFO L225 Difference]: With dead ends: 494 [2020-12-09 08:09:47,757 INFO L226 Difference]: Without dead ends: 334 [2020-12-09 08:09:47,758 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:09:47,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2020-12-09 08:09:47,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 330. [2020-12-09 08:09:47,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-12-09 08:09:47,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 513 transitions. [2020-12-09 08:09:47,779 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 513 transitions. Word has length 32 [2020-12-09 08:09:47,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:09:47,779 INFO L481 AbstractCegarLoop]: Abstraction has 330 states and 513 transitions. [2020-12-09 08:09:47,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 08:09:47,779 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 513 transitions. [2020-12-09 08:09:47,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-09 08:09:47,781 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:09:47,782 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, 1, 1] [2020-12-09 08:09:47,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 08:09:47,984 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:09:47,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:09:47,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1270376866, now seen corresponding path program 1 times [2020-12-09 08:09:47,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:09:47,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [5593049] [2020-12-09 08:09:47,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-09 08:09:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:09:48,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 08:09:48,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:09:48,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:09:48,246 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:09:48,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [5593049] [2020-12-09 08:09:48,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:09:48,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 08:09:48,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537480053] [2020-12-09 08:09:48,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 08:09:48,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:09:48,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 08:09:48,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 08:09:48,248 INFO L87 Difference]: Start difference. First operand 330 states and 513 transitions. Second operand 5 states. [2020-12-09 08:09:48,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:09:48,548 INFO L93 Difference]: Finished difference Result 1876 states and 2986 transitions. [2020-12-09 08:09:48,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-09 08:09:48,549 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-12-09 08:09:48,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:09:48,556 INFO L225 Difference]: With dead ends: 1876 [2020-12-09 08:09:48,557 INFO L226 Difference]: Without dead ends: 1560 [2020-12-09 08:09:48,558 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-09 08:09:48,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2020-12-09 08:09:48,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 638. [2020-12-09 08:09:48,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 638 states. [2020-12-09 08:09:48,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 997 transitions. [2020-12-09 08:09:48,595 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 997 transitions. Word has length 35 [2020-12-09 08:09:48,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:09:48,596 INFO L481 AbstractCegarLoop]: Abstraction has 638 states and 997 transitions. [2020-12-09 08:09:48,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 08:09:48,596 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 997 transitions. [2020-12-09 08:09:48,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-09 08:09:48,598 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:09:48,598 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, 1, 1, 1] [2020-12-09 08:09:48,799 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 08:09:48,800 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:09:48,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:09:48,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1380973999, now seen corresponding path program 1 times [2020-12-09 08:09:48,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:09:48,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1542895261] [2020-12-09 08:09:48,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-09 08:09:49,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:09:49,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 08:09:49,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:09:49,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:09:49,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:09:49,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1542895261] [2020-12-09 08:09:49,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:09:49,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 08:09:49,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959491356] [2020-12-09 08:09:49,082 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 08:09:49,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:09:49,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 08:09:49,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 08:09:49,083 INFO L87 Difference]: Start difference. First operand 638 states and 997 transitions. Second operand 5 states. [2020-12-09 08:09:49,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:09:49,412 INFO L93 Difference]: Finished difference Result 2772 states and 4412 transitions. [2020-12-09 08:09:49,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 08:09:49,412 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2020-12-09 08:09:49,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:09:49,426 INFO L225 Difference]: With dead ends: 2772 [2020-12-09 08:09:49,426 INFO L226 Difference]: Without dead ends: 2148 [2020-12-09 08:09:49,428 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-09 08:09:49,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2020-12-09 08:09:49,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 672. [2020-12-09 08:09:49,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 672 states. [2020-12-09 08:09:49,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 1021 transitions. [2020-12-09 08:09:49,473 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 1021 transitions. Word has length 36 [2020-12-09 08:09:49,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:09:49,473 INFO L481 AbstractCegarLoop]: Abstraction has 672 states and 1021 transitions. [2020-12-09 08:09:49,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 08:09:49,474 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1021 transitions. [2020-12-09 08:09:49,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-09 08:09:49,475 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:09:49,475 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 08:09:49,676 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 08:09:49,676 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:09:49,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:09:49,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1093992796, now seen corresponding path program 1 times [2020-12-09 08:09:49,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:09:49,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1828537894] [2020-12-09 08:09:49,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-12-09 08:09:49,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:09:49,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 08:09:49,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:09:49,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:09:49,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:09:49,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1828537894] [2020-12-09 08:09:49,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:09:49,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 08:09:49,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654917888] [2020-12-09 08:09:49,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 08:09:49,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:09:49,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 08:09:49,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 08:09:49,894 INFO L87 Difference]: Start difference. First operand 672 states and 1021 transitions. Second operand 5 states. [2020-12-09 08:09:50,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:09:50,109 INFO L93 Difference]: Finished difference Result 1682 states and 2536 transitions. [2020-12-09 08:09:50,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 08:09:50,109 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2020-12-09 08:09:50,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:09:50,115 INFO L225 Difference]: With dead ends: 1682 [2020-12-09 08:09:50,115 INFO L226 Difference]: Without dead ends: 1024 [2020-12-09 08:09:50,117 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-09 08:09:50,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2020-12-09 08:09:50,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 768. [2020-12-09 08:09:50,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2020-12-09 08:09:50,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1117 transitions. [2020-12-09 08:09:50,164 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1117 transitions. Word has length 44 [2020-12-09 08:09:50,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:09:50,164 INFO L481 AbstractCegarLoop]: Abstraction has 768 states and 1117 transitions. [2020-12-09 08:09:50,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 08:09:50,165 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1117 transitions. [2020-12-09 08:09:50,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-09 08:09:50,165 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:09:50,165 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 08:09:50,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-09 08:09:50,366 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:09:50,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:09:50,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1352158234, now seen corresponding path program 1 times [2020-12-09 08:09:50,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:09:50,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216810046] [2020-12-09 08:09:50,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-12-09 08:09:50,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:09:50,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 08:09:50,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:09:50,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:09:50,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:09:50,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1216810046] [2020-12-09 08:09:50,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:09:50,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 08:09:50,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377841429] [2020-12-09 08:09:50,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 08:09:50,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:09:50,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 08:09:50,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 08:09:50,567 INFO L87 Difference]: Start difference. First operand 768 states and 1117 transitions. Second operand 4 states. [2020-12-09 08:09:50,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:09:50,720 INFO L93 Difference]: Finished difference Result 1818 states and 2610 transitions. [2020-12-09 08:09:50,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 08:09:50,721 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-12-09 08:09:50,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:09:50,725 INFO L225 Difference]: With dead ends: 1818 [2020-12-09 08:09:50,726 INFO L226 Difference]: Without dead ends: 1064 [2020-12-09 08:09:50,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 08:09:50,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2020-12-09 08:09:50,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 832. [2020-12-09 08:09:50,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 832 states. [2020-12-09 08:09:50,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1181 transitions. [2020-12-09 08:09:50,768 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1181 transitions. Word has length 44 [2020-12-09 08:09:50,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:09:50,769 INFO L481 AbstractCegarLoop]: Abstraction has 832 states and 1181 transitions. [2020-12-09 08:09:50,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 08:09:50,769 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1181 transitions. [2020-12-09 08:09:50,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-09 08:09:50,770 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:09:50,770 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 08:09:50,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-09 08:09:50,976 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:09:50,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:09:50,976 INFO L82 PathProgramCache]: Analyzing trace with hash 341040984, now seen corresponding path program 1 times [2020-12-09 08:09:50,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:09:50,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1436472957] [2020-12-09 08:09:50,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-12-09 08:09:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:09:51,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 08:09:51,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:09:51,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:09:51,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:09:51,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1436472957] [2020-12-09 08:09:51,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:09:51,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 08:09:51,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749986201] [2020-12-09 08:09:51,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 08:09:51,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:09:51,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 08:09:51,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:09:51,151 INFO L87 Difference]: Start difference. First operand 832 states and 1181 transitions. Second operand 3 states. [2020-12-09 08:09:51,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:09:51,235 INFO L93 Difference]: Finished difference Result 1882 states and 2658 transitions. [2020-12-09 08:09:51,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 08:09:51,235 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2020-12-09 08:09:51,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:09:51,239 INFO L225 Difference]: With dead ends: 1882 [2020-12-09 08:09:51,239 INFO L226 Difference]: Without dead ends: 1064 [2020-12-09 08:09:51,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:09:51,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2020-12-09 08:09:51,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1064. [2020-12-09 08:09:51,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1064 states. [2020-12-09 08:09:51,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1471 transitions. [2020-12-09 08:09:51,284 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1471 transitions. Word has length 44 [2020-12-09 08:09:51,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:09:51,284 INFO L481 AbstractCegarLoop]: Abstraction has 1064 states and 1471 transitions. [2020-12-09 08:09:51,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 08:09:51,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1471 transitions. [2020-12-09 08:09:51,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-09 08:09:51,286 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:09:51,286 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 08:09:51,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-12-09 08:09:51,487 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:09:51,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:09:51,487 INFO L82 PathProgramCache]: Analyzing trace with hash 772865075, now seen corresponding path program 1 times [2020-12-09 08:09:51,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:09:51,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518303454] [2020-12-09 08:09:51,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-12-09 08:09:51,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:09:51,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 08:09:51,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:09:51,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:09:51,637 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:09:51,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1518303454] [2020-12-09 08:09:51,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:09:51,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 08:09:51,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892439710] [2020-12-09 08:09:51,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 08:09:51,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:09:51,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 08:09:51,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:09:51,639 INFO L87 Difference]: Start difference. First operand 1064 states and 1471 transitions. Second operand 3 states. [2020-12-09 08:09:51,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:09:51,710 INFO L93 Difference]: Finished difference Result 1810 states and 2530 transitions. [2020-12-09 08:09:51,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 08:09:51,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-12-09 08:09:51,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:09:51,717 INFO L225 Difference]: With dead ends: 1810 [2020-12-09 08:09:51,717 INFO L226 Difference]: Without dead ends: 1808 [2020-12-09 08:09:51,718 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:09:51,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1808 states. [2020-12-09 08:09:51,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1808 to 1359. [2020-12-09 08:09:51,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1359 states. [2020-12-09 08:09:51,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1927 transitions. [2020-12-09 08:09:51,793 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1927 transitions. Word has length 45 [2020-12-09 08:09:51,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:09:51,793 INFO L481 AbstractCegarLoop]: Abstraction has 1359 states and 1927 transitions. [2020-12-09 08:09:51,793 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 08:09:51,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1927 transitions. [2020-12-09 08:09:51,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-09 08:09:51,795 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:09:51,795 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 08:09:51,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-12-09 08:09:51,996 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:09:51,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:09:51,996 INFO L82 PathProgramCache]: Analyzing trace with hash -2048727465, now seen corresponding path program 1 times [2020-12-09 08:09:51,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:09:51,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446111858] [2020-12-09 08:09:51,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-12-09 08:09:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:09:52,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 08:09:52,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:09:52,153 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-09 08:09:52,153 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:09:52,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [446111858] [2020-12-09 08:09:52,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:09:52,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 08:09:52,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590127642] [2020-12-09 08:09:52,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 08:09:52,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:09:52,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 08:09:52,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:09:52,154 INFO L87 Difference]: Start difference. First operand 1359 states and 1927 transitions. Second operand 3 states. [2020-12-09 08:09:53,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:09:53,271 INFO L93 Difference]: Finished difference Result 2124 states and 3008 transitions. [2020-12-09 08:09:53,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 08:09:53,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2020-12-09 08:09:53,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:09:53,275 INFO L225 Difference]: With dead ends: 2124 [2020-12-09 08:09:53,275 INFO L226 Difference]: Without dead ends: 779 [2020-12-09 08:09:53,277 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:09:53,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2020-12-09 08:09:53,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 767. [2020-12-09 08:09:53,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 767 states. [2020-12-09 08:09:53,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1077 transitions. [2020-12-09 08:09:53,311 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1077 transitions. Word has length 66 [2020-12-09 08:09:53,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:09:53,311 INFO L481 AbstractCegarLoop]: Abstraction has 767 states and 1077 transitions. [2020-12-09 08:09:53,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 08:09:53,311 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1077 transitions. [2020-12-09 08:09:53,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-09 08:09:53,312 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:09:53,312 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 08:09:53,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-12-09 08:09:53,513 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:09:53,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:09:53,513 INFO L82 PathProgramCache]: Analyzing trace with hash 883644073, now seen corresponding path program 1 times [2020-12-09 08:09:53,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:09:53,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [697492473] [2020-12-09 08:09:53,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-12-09 08:09:53,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:09:53,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 08:09:53,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:09:53,680 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-09 08:09:53,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 08:09:53,731 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-09 08:09:53,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [697492473] [2020-12-09 08:09:53,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [704977599] [2020-12-09 08:09:53,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt [2020-12-09 08:09:53,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:09:53,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 08:09:53,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:09:53,905 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:09:53,905 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:09:53,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 08:09:53,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 7 [2020-12-09 08:09:53,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307334863] [2020-12-09 08:09:53,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 08:09:53,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:09:53,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 08:09:53,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-09 08:09:53,907 INFO L87 Difference]: Start difference. First operand 767 states and 1077 transitions. Second operand 3 states. [2020-12-09 08:09:55,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:09:55,132 INFO L93 Difference]: Finished difference Result 1720 states and 2428 transitions. [2020-12-09 08:09:55,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 08:09:55,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2020-12-09 08:09:55,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:09:55,136 INFO L225 Difference]: With dead ends: 1720 [2020-12-09 08:09:55,136 INFO L226 Difference]: Without dead ends: 967 [2020-12-09 08:09:55,137 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-09 08:09:55,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2020-12-09 08:09:55,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 967. [2020-12-09 08:09:55,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 967 states. [2020-12-09 08:09:55,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1330 transitions. [2020-12-09 08:09:55,181 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1330 transitions. Word has length 66 [2020-12-09 08:09:55,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:09:55,181 INFO L481 AbstractCegarLoop]: Abstraction has 967 states and 1330 transitions. [2020-12-09 08:09:55,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 08:09:55,181 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1330 transitions. [2020-12-09 08:09:55,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-09 08:09:55,183 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:09:55,183 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 08:09:55,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt,12 mathsat -unsat_core_generation=3 [2020-12-09 08:09:55,585 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:09:55,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:09:55,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1923017229, now seen corresponding path program 1 times [2020-12-09 08:09:55,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:09:55,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [104916176] [2020-12-09 08:09:55,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-12-09 08:09:55,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:09:55,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 08:09:55,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:09:55,768 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-09 08:09:55,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 08:09:55,809 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-09 08:09:55,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [104916176] [2020-12-09 08:09:55,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1660224902] [2020-12-09 08:09:55,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt [2020-12-09 08:09:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:09:55,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 08:09:55,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:09:56,032 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-09 08:09:56,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 08:09:56,062 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-09 08:09:56,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122351904] [2020-12-09 08:09:56,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 08:09:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:09:56,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 08:09:56,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:09:56,184 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:09:56,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:09:56,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2020-12-09 08:09:56,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3, 3, 3] total 7 [2020-12-09 08:09:56,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615583096] [2020-12-09 08:09:56,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 08:09:56,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:09:56,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 08:09:56,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-09 08:09:56,186 INFO L87 Difference]: Start difference. First operand 967 states and 1330 transitions. Second operand 3 states. [2020-12-09 08:09:57,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:09:57,511 INFO L93 Difference]: Finished difference Result 2011 states and 2795 transitions. [2020-12-09 08:09:57,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 08:09:57,511 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-12-09 08:09:57,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:09:57,517 INFO L225 Difference]: With dead ends: 2011 [2020-12-09 08:09:57,518 INFO L226 Difference]: Without dead ends: 1314 [2020-12-09 08:09:57,519 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 323 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-09 08:09:57,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2020-12-09 08:09:57,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1312. [2020-12-09 08:09:57,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1312 states. [2020-12-09 08:09:57,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1784 transitions. [2020-12-09 08:09:57,585 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1784 transitions. Word has length 67 [2020-12-09 08:09:57,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:09:57,585 INFO L481 AbstractCegarLoop]: Abstraction has 1312 states and 1784 transitions. [2020-12-09 08:09:57,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 08:09:57,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1784 transitions. [2020-12-09 08:09:57,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-09 08:09:57,587 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:09:57,587 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 08:09:58,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 mathsat -unsat_core_generation=3,15 cvc4 --incremental --print-success --lang smt [2020-12-09 08:09:58,190 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:09:58,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:09:58,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1336211215, now seen corresponding path program 1 times [2020-12-09 08:09:58,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:09:58,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849926821] [2020-12-09 08:09:58,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/mathsat Starting monitored process 17 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with mathsat -unsat_core_generation=3 [2020-12-09 08:09:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 08:09:59,219 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 08:10:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 08:10:00,206 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 08:10:00,376 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-12-09 08:10:00,376 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 08:10:00,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3 [2020-12-09 08:10:00,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 08:10:00 BoogieIcfgContainer [2020-12-09 08:10:00,723 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 08:10:00,723 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 08:10:00,723 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 08:10:00,723 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 08:10:00,724 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:09:46" (3/4) ... [2020-12-09 08:10:00,725 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-09 08:10:00,819 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_107b6165-086b-4e8d-a81d-be2d64116184/bin/utaipan/witness.graphml [2020-12-09 08:10:00,820 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 08:10:00,821 INFO L168 Benchmark]: Toolchain (without parser) took 17496.08 ms. Allocated memory was 60.8 MB in the beginning and 142.6 MB in the end (delta: 81.8 MB). Free memory was 39.2 MB in the beginning and 76.6 MB in the end (delta: -37.4 MB). Peak memory consumption was 96.3 MB. Max. memory is 16.1 GB. [2020-12-09 08:10:00,821 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 60.8 MB. Free memory was 43.7 MB in the beginning and 43.6 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 08:10:00,821 INFO L168 Benchmark]: CACSL2BoogieTranslator took 405.76 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 39.0 MB in the beginning and 58.1 MB in the end (delta: -19.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2020-12-09 08:10:00,821 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.87 ms. Allocated memory is still 77.6 MB. Free memory was 58.1 MB in the beginning and 47.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 08:10:00,821 INFO L168 Benchmark]: Boogie Preprocessor took 78.87 ms. Allocated memory is still 77.6 MB. Free memory was 47.2 MB in the beginning and 39.5 MB in the end (delta: 7.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 08:10:00,822 INFO L168 Benchmark]: RCFGBuilder took 2387.11 ms. Allocated memory was 77.6 MB in the beginning and 96.5 MB in the end (delta: 18.9 MB). Free memory was 39.5 MB in the beginning and 34.4 MB in the end (delta: 5.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. [2020-12-09 08:10:00,822 INFO L168 Benchmark]: TraceAbstraction took 14449.08 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 34.4 MB in the beginning and 46.6 MB in the end (delta: -12.3 MB). Peak memory consumption was 33.2 MB. Max. memory is 16.1 GB. [2020-12-09 08:10:00,822 INFO L168 Benchmark]: Witness Printer took 96.28 ms. Allocated memory is still 142.6 MB. Free memory was 46.6 MB in the beginning and 76.6 MB in the end (delta: -30.0 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. [2020-12-09 08:10:00,824 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 60.8 MB. Free memory was 43.7 MB in the beginning and 43.6 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 405.76 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 39.0 MB in the beginning and 58.1 MB in the end (delta: -19.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.87 ms. Allocated memory is still 77.6 MB. Free memory was 58.1 MB in the beginning and 47.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 78.87 ms. Allocated memory is still 77.6 MB. Free memory was 47.2 MB in the beginning and 39.5 MB in the end (delta: 7.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2387.11 ms. Allocated memory was 77.6 MB in the beginning and 96.5 MB in the end (delta: 18.9 MB). Free memory was 39.5 MB in the beginning and 34.4 MB in the end (delta: 5.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 14449.08 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 34.4 MB in the beginning and 46.6 MB in the end (delta: -12.3 MB). Peak memory consumption was 33.2 MB. Max. memory is 16.1 GB. * Witness Printer took 96.28 ms. Allocated memory is still 142.6 MB. Free memory was 46.6 MB in the beginning and 76.6 MB in the end (delta: -30.0 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1089]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L42] int __SELECTED_FEATURE_base ; [L43] int __SELECTED_FEATURE_highWaterSensor ; [L44] int __SELECTED_FEATURE_lowWaterSensor ; [L45] int __SELECTED_FEATURE_methaneQuery ; [L46] int __SELECTED_FEATURE_methaneAlarm ; [L47] int __SELECTED_FEATURE_stopCommand ; [L48] int __SELECTED_FEATURE_startCommand ; [L49] int __GUIDSL_ROOT_PRODUCTION ; [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L168] int pumpRunning = 0; [L169] int systemActive = 1; [L500] int cleanupTimeShifts = 4; [L680] int methAndRunningLastTime ; [L888] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [__GUIDSL_ROOT_PRODUCTION=0, __SELECTED_FEATURE_base=0, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L579] int retValue_acc ; [L580] int tmp ; [L1125] __GUIDSL_ROOT_PRODUCTION = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=0, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1110] __SELECTED_FEATURE_base = 1 [L1096] int retValue_acc ; [L1097] int choice = __VERIFIER_nondet_int(); [L1100] retValue_acc = choice [L1101] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1111] __SELECTED_FEATURE_highWaterSensor = select_one() [L1096] int retValue_acc ; [L1097] int choice = __VERIFIER_nondet_int(); [L1100] retValue_acc = choice [L1101] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1112] __SELECTED_FEATURE_lowWaterSensor = select_one() [L1096] int retValue_acc ; [L1097] int choice = __VERIFIER_nondet_int(); [L1100] retValue_acc = choice [L1101] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1113] __SELECTED_FEATURE_methaneQuery = select_one() [L1096] int retValue_acc ; [L1097] int choice = __VERIFIER_nondet_int(); [L1100] retValue_acc = choice [L1101] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1114] __SELECTED_FEATURE_methaneAlarm = select_one() [L1096] int retValue_acc ; [L1097] int choice = __VERIFIER_nondet_int(); [L1100] retValue_acc = choice [L1101] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1115] __SELECTED_FEATURE_stopCommand = select_one() [L1096] int retValue_acc ; [L1097] int choice = __VERIFIER_nondet_int(); [L1100] retValue_acc = choice [L1101] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1116] __SELECTED_FEATURE_startCommand = select_one() [L1130] int retValue_acc ; [L1133] retValue_acc = __SELECTED_FEATURE_base [L1134] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L586] tmp = valid_product() [L588] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L685] methAndRunningLastTime = 0 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L603] int splverifierCounter ; [L604] int tmp ; [L605] int tmp___0 ; [L606] int tmp___1 ; [L607] int tmp___2 ; [L610] splverifierCounter = 0 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L612] COND TRUE 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L614] COND TRUE splverifierCounter < 4 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L620] tmp = __VERIFIER_nondet_int() [L622] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L76] COND TRUE waterLevel < 2 [L77] waterLevel = waterLevel + 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L630] tmp___0 = __VERIFIER_nondet_int() [L632] COND TRUE \read(tmp___0) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L88] COND FALSE !(\read(methaneLevelCritical)) [L91] methaneLevelCritical = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L640] tmp___2 = __VERIFIER_nondet_int() [L642] COND FALSE !(\read(tmp___2)) [L652] tmp___1 = __VERIFIER_nondet_int() [L654] COND FALSE !(\read(tmp___1)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L176] COND FALSE !(\read(pumpRunning)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L183] COND TRUE \read(systemActive) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L319] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L276] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L233] COND TRUE \read(__SELECTED_FEATURE_highWaterSensor) [L205] int tmp ; VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L208] COND TRUE ! pumpRunning [L439] int retValue_acc ; [L440] int tmp ; [L441] int tmp___0 ; [L138] int retValue_acc ; VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L141] COND FALSE !(waterLevel < 2) [L145] retValue_acc = 0 [L146] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L445] tmp = isHighWaterSensorDry() [L447] COND FALSE !(\read(tmp)) [L450] tmp___0 = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L452] retValue_acc = tmp___0 [L453] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L210] tmp = isHighWaterLevel() [L212] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L361] COND FALSE !(\read(__SELECTED_FEATURE_methaneQuery)) [L336] pumpRunning = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L690] int tmp ; [L691] int tmp___0 ; [L97] int retValue_acc ; [L100] retValue_acc = methaneLevelCritical [L101] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L695] tmp = isMethaneLevelCritical() [L697] COND TRUE \read(tmp) [L394] int retValue_acc ; [L397] retValue_acc = pumpRunning [L398] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L699] tmp___0 = isPumpRunning() [L701] COND TRUE \read(tmp___0) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L702] COND FALSE !(\read(methAndRunningLastTime)) [L707] methAndRunningLastTime = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L612] COND TRUE 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L614] COND TRUE splverifierCounter < 4 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L620] tmp = __VERIFIER_nondet_int() [L622] COND FALSE !(\read(tmp)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L630] tmp___0 = __VERIFIER_nondet_int() [L632] COND FALSE !(\read(tmp___0)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L640] tmp___2 = __VERIFIER_nondet_int() [L642] COND FALSE !(\read(tmp___2)) [L652] tmp___1 = __VERIFIER_nondet_int() [L654] COND FALSE !(\read(tmp___1)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L176] COND TRUE \read(pumpRunning) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L64] COND TRUE waterLevel > 0 [L65] waterLevel = waterLevel - 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L183] COND TRUE \read(systemActive) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L319] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L276] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L233] COND TRUE \read(__SELECTED_FEATURE_highWaterSensor) [L205] int tmp ; VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L208] COND FALSE !(! pumpRunning) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L690] int tmp ; [L691] int tmp___0 ; [L97] int retValue_acc ; [L100] retValue_acc = methaneLevelCritical [L101] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L695] tmp = isMethaneLevelCritical() [L697] COND TRUE \read(tmp) [L394] int retValue_acc ; [L397] retValue_acc = pumpRunning [L398] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L699] tmp___0 = isPumpRunning() [L701] COND TRUE \read(tmp___0) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L702] COND TRUE \read(methAndRunningLastTime) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L1089] reach_error() VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 474 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.2s, OverallIterations: 13, TraceHistogramMax: 2, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4117 SDtfs, 3552 SDslu, 4536 SDs, 0 SdLazy, 550 SolverSat, 144 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 928 GetRequests, 889 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1359occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 3353 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 797 NumberOfCodeBlocks, 797 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 912 ConstructedInterpolants, 0 QuantifiedInterpolants, 131991 SizeOfPredicates, 17 NumberOfNonLiveVariables, 3766 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 18 InterpolantComputations, 12 PerfectInterpolantSequences, 158/182 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...