./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/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 bb7a46e472d875a33249a5df380376743390ac30 ............................................................................................................................................ 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_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/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 bb7a46e472d875a33249a5df380376743390ac30 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-a4ecdab [2020-11-22 13:00:25,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:00:25,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:00:25,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:00:25,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:00:25,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:00:25,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:00:25,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:00:25,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:00:25,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:00:25,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:00:25,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:00:25,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:00:25,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:00:25,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:00:25,374 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:00:25,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:00:25,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:00:25,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:00:25,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:00:25,394 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:00:25,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:00:25,397 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:00:25,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:00:25,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:00:25,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:00:25,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:00:25,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:00:25,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:00:25,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:00:25,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:00:25,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:00:25,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:00:25,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:00:25,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:00:25,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:00:25,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:00:25,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:00:25,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:00:25,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:00:25,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:00:25,417 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:00:25,455 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:00:25,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:00:25,457 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:00:25,457 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:00:25,458 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:00:25,458 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:00:25,459 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:00:25,459 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:00:25,460 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:00:25,460 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:00:25,460 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:00:25,461 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:00:25,461 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:00:25,462 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:00:25,462 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:00:25,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:00:25,464 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:00:25,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:00:25,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:00:25,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:00:25,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:00:25,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:00:25,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:00:25,466 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:00:25,467 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:00:25,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:00:25,467 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:00:25,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:00:25,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:00:25,468 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:00:25,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:00:25,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:00:25,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:00:25,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:00:25,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:00:25,469 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:00:25,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:00:25,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:00:25,470 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:00:25,470 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:00:25,471 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_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb7a46e472d875a33249a5df380376743390ac30 [2020-11-22 13:00:25,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:00:25,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:00:25,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:00:25,785 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:00:25,786 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:00:25,787 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c [2020-11-22 13:00:25,880 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan/data/12d5a890d/3b381cf6401d4699921f6e131e94ad1f/FLAG5ccc144e5 [2020-11-22 13:00:26,435 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:00:26,435 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c [2020-11-22 13:00:26,465 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan/data/12d5a890d/3b381cf6401d4699921f6e131e94ad1f/FLAG5ccc144e5 [2020-11-22 13:00:26,710 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan/data/12d5a890d/3b381cf6401d4699921f6e131e94ad1f [2020-11-22 13:00:26,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:00:26,717 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:00:26,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:00:26,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:00:26,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:00:26,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:00:26" (1/1) ... [2020-11-22 13:00:26,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12c8f9ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:26, skipping insertion in model container [2020-11-22 13:00:26,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:00:26" (1/1) ... [2020-11-22 13:00:26,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:00:26,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:00:27,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:00:27,184 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) [2020-11-22 13:00:27,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@50934e66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:27, skipping insertion in model container [2020-11-22 13:00:27,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:00:27,189 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:00:27,191 INFO L168 Benchmark]: Toolchain (without parser) took 472.34 ms. Allocated memory is still 92.3 MB. Free memory was 60.9 MB in the beginning and 66.6 MB in the end (delta: -5.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:27,192 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 92.3 MB. Free memory is still 51.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:00:27,192 INFO L168 Benchmark]: CACSL2BoogieTranslator took 467.50 ms. Allocated memory is still 92.3 MB. Free memory was 60.6 MB in the beginning and 66.6 MB in the end (delta: -5.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:27,194 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 92.3 MB. Free memory is still 51.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 467.50 ms. Allocated memory is still 92.3 MB. Free memory was 60.6 MB in the beginning and 66.6 MB in the end (delta: -5.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 637]: 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-a4ecdab [2020-11-22 13:00:29,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:00:29,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:00:29,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:00:29,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:00:29,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:00:29,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:00:29,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:00:29,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:00:29,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:00:29,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:00:29,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:00:29,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:00:29,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:00:29,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:00:29,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:00:29,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:00:29,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:00:29,682 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:00:29,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:00:29,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:00:29,689 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:00:29,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:00:29,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:00:29,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:00:29,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:00:29,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:00:29,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:00:29,699 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:00:29,700 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:00:29,711 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:00:29,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:00:29,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:00:29,715 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:00:29,716 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:00:29,717 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:00:29,718 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:00:29,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:00:29,718 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:00:29,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:00:29,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:00:29,721 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:00:29,765 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:00:29,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:00:29,767 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:00:29,768 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:00:29,768 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:00:29,768 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:00:29,768 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:00:29,769 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:00:29,769 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:00:29,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:00:29,771 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:00:29,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:00:29,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:00:29,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:00:29,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:00:29,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:00:29,773 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:00:29,773 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:00:29,773 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:00:29,773 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:00:29,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:00:29,774 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:00:29,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:00:29,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:00:29,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:00:29,775 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:00:29,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:00:29,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:00:29,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:00:29,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:00:29,776 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:00:29,776 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:00:29,776 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:00:29,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:00:29,777 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:00:29,777 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:00:29,777 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_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb7a46e472d875a33249a5df380376743390ac30 [2020-11-22 13:00:30,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:00:30,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:00:30,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:00:30,241 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:00:30,248 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:00:30,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c [2020-11-22 13:00:30,321 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan/data/2495c33e0/033edcaeca29454cbf50d051a1fdf108/FLAG51a34bc2a [2020-11-22 13:00:31,009 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:00:31,010 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c [2020-11-22 13:00:31,029 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan/data/2495c33e0/033edcaeca29454cbf50d051a1fdf108/FLAG51a34bc2a [2020-11-22 13:00:31,270 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan/data/2495c33e0/033edcaeca29454cbf50d051a1fdf108 [2020-11-22 13:00:31,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:00:31,276 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:00:31,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:00:31,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:00:31,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:00:31,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:00:31" (1/1) ... [2020-11-22 13:00:31,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f294c72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:31, skipping insertion in model container [2020-11-22 13:00:31,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:00:31" (1/1) ... [2020-11-22 13:00:31,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:00:31,366 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:00:31,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:00:31,780 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:00:31,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:00:31,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:00:31,878 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:00:31,960 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:00:32,029 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:00:32,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:32 WrapperNode [2020-11-22 13:00:32,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:00:32,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:00:32,033 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:00:32,033 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:00:32,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:32" (1/1) ... [2020-11-22 13:00:32,073 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:32" (1/1) ... [2020-11-22 13:00:32,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:00:32,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:00:32,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:00:32,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:00:32,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:32" (1/1) ... [2020-11-22 13:00:32,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:32" (1/1) ... [2020-11-22 13:00:32,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:32" (1/1) ... [2020-11-22 13:00:32,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:32" (1/1) ... [2020-11-22 13:00:32,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:32" (1/1) ... [2020-11-22 13:00:32,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:32" (1/1) ... [2020-11-22 13:00:32,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:32" (1/1) ... [2020-11-22 13:00:32,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:00:32,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:00:32,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:00:32,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:00:32,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/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 [2020-11-22 13:00:32,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:00:32,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:00:32,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:00:32,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:00:36,364 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:00:36,364 INFO L298 CfgBuilder]: Removed 906 assume(true) statements. [2020-11-22 13:00:36,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:00:36 BoogieIcfgContainer [2020-11-22 13:00:36,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:00:36,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:00:36,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:00:36,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:00:36,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:00:31" (1/3) ... [2020-11-22 13:00:36,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@761f9258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:00:36, skipping insertion in model container [2020-11-22 13:00:36,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:32" (2/3) ... [2020-11-22 13:00:36,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@761f9258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:00:36, skipping insertion in model container [2020-11-22 13:00:36,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:00:36" (3/3) ... [2020-11-22 13:00:36,378 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_productSimulator.cil.c [2020-11-22 13:00:36,390 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:00:36,395 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 13:00:36,407 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 13:00:36,450 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:00:36,450 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:00:36,450 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:00:36,451 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:00:36,451 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:00:36,451 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:00:36,451 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:00:36,451 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:00:36,482 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states. [2020-11-22 13:00:36,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-22 13:00:36,495 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:36,496 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] [2020-11-22 13:00:36,496 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:00:36,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:36,502 INFO L82 PathProgramCache]: Analyzing trace with hash 169180442, now seen corresponding path program 1 times [2020-11-22 13:00:36,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:00:36,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [8769027] [2020-11-22 13:00:36,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/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 [2020-11-22 13:00:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:36,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:00:36,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:00:36,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:36,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:00:36,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:36,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [8769027] [2020-11-22 13:00:36,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:00:36,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:00:36,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761591369] [2020-11-22 13:00:36,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:00:36,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:00:36,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:00:36,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:00:36,890 INFO L87 Difference]: Start difference. First operand 473 states. Second operand 2 states. [2020-11-22 13:00:36,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:00:37,002 INFO L93 Difference]: Finished difference Result 930 states and 1457 transitions. [2020-11-22 13:00:37,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:00:37,005 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2020-11-22 13:00:37,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:00:37,025 INFO L225 Difference]: With dead ends: 930 [2020-11-22 13:00:37,025 INFO L226 Difference]: Without dead ends: 466 [2020-11-22 13:00:37,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:00:37,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-11-22 13:00:37,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2020-11-22 13:00:37,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2020-11-22 13:00:37,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 722 transitions. [2020-11-22 13:00:37,119 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 722 transitions. Word has length 23 [2020-11-22 13:00:37,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:00:37,120 INFO L481 AbstractCegarLoop]: Abstraction has 466 states and 722 transitions. [2020-11-22 13:00:37,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:00:37,120 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 722 transitions. [2020-11-22 13:00:37,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 13:00:37,121 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:37,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:00:37,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:00:37,338 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:00:37,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:37,341 INFO L82 PathProgramCache]: Analyzing trace with hash -707980802, now seen corresponding path program 1 times [2020-11-22 13:00:37,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:00:37,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1332736634] [2020-11-22 13:00:37,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/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 [2020-11-22 13:00:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:37,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:00:37,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:00:37,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:37,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:00:37,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:37,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1332736634] [2020-11-22 13:00:37,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:00:37,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:00:37,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855522161] [2020-11-22 13:00:37,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:00:37,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:00:37,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:00:37,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:00:37,692 INFO L87 Difference]: Start difference. First operand 466 states and 722 transitions. Second operand 4 states. [2020-11-22 13:00:37,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:00:37,728 INFO L93 Difference]: Finished difference Result 466 states and 722 transitions. [2020-11-22 13:00:37,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:00:37,733 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-22 13:00:37,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:00:37,737 INFO L225 Difference]: With dead ends: 466 [2020-11-22 13:00:37,737 INFO L226 Difference]: Without dead ends: 172 [2020-11-22 13:00:37,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:00:37,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-11-22 13:00:37,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2020-11-22 13:00:37,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-11-22 13:00:37,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 263 transitions. [2020-11-22 13:00:37,757 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 263 transitions. Word has length 24 [2020-11-22 13:00:37,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:00:37,758 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 263 transitions. [2020-11-22 13:00:37,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:00:37,758 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 263 transitions. [2020-11-22 13:00:37,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-22 13:00:37,759 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:37,760 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] [2020-11-22 13:00:37,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:00:37,980 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:00:37,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:37,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1978143563, now seen corresponding path program 1 times [2020-11-22 13:00:37,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:00:37,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080740522] [2020-11-22 13:00:37,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/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 [2020-11-22 13:00:38,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:38,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:00:38,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:00:38,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:38,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:00:38,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:38,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1080740522] [2020-11-22 13:00:38,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:00:38,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 13:00:38,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796593643] [2020-11-22 13:00:38,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:00:38,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:00:38,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:00:38,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:00:38,282 INFO L87 Difference]: Start difference. First operand 172 states and 263 transitions. Second operand 4 states. [2020-11-22 13:00:38,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:00:38,372 INFO L93 Difference]: Finished difference Result 515 states and 801 transitions. [2020-11-22 13:00:38,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:00:38,373 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-11-22 13:00:38,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:00:38,376 INFO L225 Difference]: With dead ends: 515 [2020-11-22 13:00:38,377 INFO L226 Difference]: Without dead ends: 356 [2020-11-22 13:00:38,378 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:00:38,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2020-11-22 13:00:38,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 193. [2020-11-22 13:00:38,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-11-22 13:00:38,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 296 transitions. [2020-11-22 13:00:38,402 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 296 transitions. Word has length 30 [2020-11-22 13:00:38,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:00:38,403 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 296 transitions. [2020-11-22 13:00:38,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:00:38,403 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 296 transitions. [2020-11-22 13:00:38,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-22 13:00:38,405 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:38,405 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:00:38,623 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:00:38,624 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:00:38,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:38,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1554604317, now seen corresponding path program 1 times [2020-11-22 13:00:38,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:00:38,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768468820] [2020-11-22 13:00:38,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/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 [2020-11-22 13:00:38,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:38,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:00:38,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:00:38,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:38,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:00:38,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:38,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768468820] [2020-11-22 13:00:38,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:00:38,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:00:38,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572973783] [2020-11-22 13:00:38,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:00:38,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:00:38,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:00:38,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:00:38,887 INFO L87 Difference]: Start difference. First operand 193 states and 296 transitions. Second operand 3 states. [2020-11-22 13:00:39,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:00:39,052 INFO L93 Difference]: Finished difference Result 384 states and 597 transitions. [2020-11-22 13:00:39,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:00:39,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-11-22 13:00:39,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:00:39,055 INFO L225 Difference]: With dead ends: 384 [2020-11-22 13:00:39,055 INFO L226 Difference]: Without dead ends: 204 [2020-11-22 13:00:39,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:00:39,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-11-22 13:00:39,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 202. [2020-11-22 13:00:39,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-11-22 13:00:39,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 302 transitions. [2020-11-22 13:00:39,088 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 302 transitions. Word has length 33 [2020-11-22 13:00:39,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:00:39,089 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 302 transitions. [2020-11-22 13:00:39,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:00:39,089 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 302 transitions. [2020-11-22 13:00:39,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-22 13:00:39,095 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:39,095 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:00:39,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:00:39,312 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:00:39,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:39,314 INFO L82 PathProgramCache]: Analyzing trace with hash 965063802, now seen corresponding path program 1 times [2020-11-22 13:00:39,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:00:39,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110402297] [2020-11-22 13:00:39,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/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 [2020-11-22 13:00:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:39,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:00:39,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:00:39,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:39,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:00:39,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:39,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110402297] [2020-11-22 13:00:39,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:00:39,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-22 13:00:39,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746606570] [2020-11-22 13:00:39,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 13:00:39,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:00:39,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 13:00:39,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:00:39,604 INFO L87 Difference]: Start difference. First operand 202 states and 302 transitions. Second operand 8 states. [2020-11-22 13:00:40,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:00:40,469 INFO L93 Difference]: Finished difference Result 1694 states and 2601 transitions. [2020-11-22 13:00:40,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-22 13:00:40,470 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2020-11-22 13:00:40,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:00:40,480 INFO L225 Difference]: With dead ends: 1694 [2020-11-22 13:00:40,481 INFO L226 Difference]: Without dead ends: 1505 [2020-11-22 13:00:40,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2020-11-22 13:00:40,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2020-11-22 13:00:40,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 491. [2020-11-22 13:00:40,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-11-22 13:00:40,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 730 transitions. [2020-11-22 13:00:40,552 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 730 transitions. Word has length 33 [2020-11-22 13:00:40,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:00:40,552 INFO L481 AbstractCegarLoop]: Abstraction has 491 states and 730 transitions. [2020-11-22 13:00:40,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 13:00:40,553 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 730 transitions. [2020-11-22 13:00:40,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-22 13:00:40,555 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:40,556 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-22 13:00:40,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:00:40,774 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:00:40,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:40,774 INFO L82 PathProgramCache]: Analyzing trace with hash 995458836, now seen corresponding path program 1 times [2020-11-22 13:00:40,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:00:40,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99990345] [2020-11-22 13:00:40,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/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 [2020-11-22 13:00:40,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:41,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-22 13:00:41,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:00:41,039 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:41,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:00:41,077 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:41,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99990345] [2020-11-22 13:00:41,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1533343665] [2020-11-22 13:00:41,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-22 13:00:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:41,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:00:41,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:00:41,364 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-22 13:00:41,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:00:41,372 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-22 13:00:41,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2020-11-22 13:00:41,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [3, 3] total 9 [2020-11-22 13:00:41,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623044667] [2020-11-22 13:00:41,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:00:41,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:00:41,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:00:41,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:00:41,377 INFO L87 Difference]: Start difference. First operand 491 states and 730 transitions. Second operand 5 states. [2020-11-22 13:00:41,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:00:41,915 INFO L93 Difference]: Finished difference Result 1309 states and 1977 transitions. [2020-11-22 13:00:41,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-22 13:00:41,916 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2020-11-22 13:00:41,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:00:41,924 INFO L225 Difference]: With dead ends: 1309 [2020-11-22 13:00:41,924 INFO L226 Difference]: Without dead ends: 1307 [2020-11-22 13:00:41,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-11-22 13:00:41,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1307 states. [2020-11-22 13:00:41,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1307 to 491. [2020-11-22 13:00:41,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-11-22 13:00:41,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 728 transitions. [2020-11-22 13:00:41,991 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 728 transitions. Word has length 49 [2020-11-22 13:00:41,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:00:41,991 INFO L481 AbstractCegarLoop]: Abstraction has 491 states and 728 transitions. [2020-11-22 13:00:41,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:00:41,991 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 728 transitions. [2020-11-22 13:00:41,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-22 13:00:41,993 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:41,993 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-22 13:00:42,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3,8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-22 13:00:42,407 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:00:42,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:42,407 INFO L82 PathProgramCache]: Analyzing trace with hash 640505612, now seen corresponding path program 1 times [2020-11-22 13:00:42,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:00:42,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1174624914] [2020-11-22 13:00:42,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/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 [2020-11-22 13:00:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:42,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:00:42,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:00:42,685 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-22 13:00:42,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:00:42,703 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-22 13:00:42,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1174624914] [2020-11-22 13:00:42,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:00:42,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 13:00:42,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290870144] [2020-11-22 13:00:42,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:00:42,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:00:42,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:00:42,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:00:42,714 INFO L87 Difference]: Start difference. First operand 491 states and 728 transitions. Second operand 5 states. [2020-11-22 13:00:43,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:00:43,052 INFO L93 Difference]: Finished difference Result 1333 states and 1967 transitions. [2020-11-22 13:00:43,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:00:43,053 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2020-11-22 13:00:43,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:00:43,058 INFO L225 Difference]: With dead ends: 1333 [2020-11-22 13:00:43,059 INFO L226 Difference]: Without dead ends: 855 [2020-11-22 13:00:43,060 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:00:43,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2020-11-22 13:00:43,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 551. [2020-11-22 13:00:43,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2020-11-22 13:00:43,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 788 transitions. [2020-11-22 13:00:43,152 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 788 transitions. Word has length 59 [2020-11-22 13:00:43,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:00:43,152 INFO L481 AbstractCegarLoop]: Abstraction has 551 states and 788 transitions. [2020-11-22 13:00:43,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:00:43,152 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 788 transitions. [2020-11-22 13:00:43,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-22 13:00:43,155 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:43,155 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-22 13:00:43,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-22 13:00:43,369 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:00:43,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:43,369 INFO L82 PathProgramCache]: Analyzing trace with hash 2026709006, now seen corresponding path program 1 times [2020-11-22 13:00:43,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:00:43,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [501532719] [2020-11-22 13:00:43,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/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 [2020-11-22 13:00:43,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:43,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 13:00:43,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:00:43,673 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-22 13:00:43,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:00:43,696 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-22 13:00:43,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [501532719] [2020-11-22 13:00:43,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:00:43,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 13:00:43,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739692193] [2020-11-22 13:00:43,697 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:00:43,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:00:43,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:00:43,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:00:43,698 INFO L87 Difference]: Start difference. First operand 551 states and 788 transitions. Second operand 6 states. [2020-11-22 13:00:43,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:00:43,987 INFO L93 Difference]: Finished difference Result 1290 states and 1845 transitions. [2020-11-22 13:00:43,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:00:43,987 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2020-11-22 13:00:43,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:00:43,992 INFO L225 Difference]: With dead ends: 1290 [2020-11-22 13:00:43,992 INFO L226 Difference]: Without dead ends: 752 [2020-11-22 13:00:43,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:00:43,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2020-11-22 13:00:44,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 464. [2020-11-22 13:00:44,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2020-11-22 13:00:44,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 644 transitions. [2020-11-22 13:00:44,049 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 644 transitions. Word has length 59 [2020-11-22 13:00:44,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:00:44,049 INFO L481 AbstractCegarLoop]: Abstraction has 464 states and 644 transitions. [2020-11-22 13:00:44,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:00:44,049 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 644 transitions. [2020-11-22 13:00:44,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-11-22 13:00:44,051 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:44,051 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-22 13:00:44,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-22 13:00:44,268 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:00:44,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:44,268 INFO L82 PathProgramCache]: Analyzing trace with hash 343284371, now seen corresponding path program 1 times [2020-11-22 13:00:44,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:00:44,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1859042827] [2020-11-22 13:00:44,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/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 [2020-11-22 13:00:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:44,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:00:44,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:00:44,545 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:44,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:00:44,559 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:44,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1859042827] [2020-11-22 13:00:44,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:00:44,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 13:00:44,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343964486] [2020-11-22 13:00:44,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:00:44,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:00:44,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:00:44,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:00:44,561 INFO L87 Difference]: Start difference. First operand 464 states and 644 transitions. Second operand 3 states. [2020-11-22 13:00:46,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:00:46,289 INFO L93 Difference]: Finished difference Result 1061 states and 1491 transitions. [2020-11-22 13:00:46,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:00:46,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-11-22 13:00:46,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:00:46,294 INFO L225 Difference]: With dead ends: 1061 [2020-11-22 13:00:46,294 INFO L226 Difference]: Without dead ends: 610 [2020-11-22 13:00:46,296 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:00:46,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2020-11-22 13:00:46,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 610. [2020-11-22 13:00:46,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 610 states. [2020-11-22 13:00:46,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 838 transitions. [2020-11-22 13:00:46,361 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 838 transitions. Word has length 60 [2020-11-22 13:00:46,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:00:46,362 INFO L481 AbstractCegarLoop]: Abstraction has 610 states and 838 transitions. [2020-11-22 13:00:46,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:00:46,362 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 838 transitions. [2020-11-22 13:00:46,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-11-22 13:00:46,364 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:46,364 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-22 13:00:46,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-22 13:00:46,581 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:00:46,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:46,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1387647183, now seen corresponding path program 1 times [2020-11-22 13:00:46,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:00:46,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1395204768] [2020-11-22 13:00:46,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/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 [2020-11-22 13:00:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:46,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 13:00:46,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:00:46,916 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-22 13:00:46,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:00:46,981 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-22 13:00:46,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1395204768] [2020-11-22 13:00:46,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1516930149] [2020-11-22 13:00:46,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-22 13:00:47,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:47,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 13:00:47,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:00:47,193 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-22 13:00:47,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:00:47,208 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-22 13:00:47,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141457586] [2020-11-22 13:00:47,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:00:47,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:47,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 13:00:47,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:00:47,398 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-22 13:00:47,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:00:47,438 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-22 13:00:47,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-11-22 13:00:47,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5, 5] total 10 [2020-11-22 13:00:47,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271491763] [2020-11-22 13:00:47,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-22 13:00:47,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:00:47,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-22 13:00:47,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-11-22 13:00:47,442 INFO L87 Difference]: Start difference. First operand 610 states and 838 transitions. Second operand 11 states. [2020-11-22 13:00:49,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:00:49,523 INFO L93 Difference]: Finished difference Result 3472 states and 4761 transitions. [2020-11-22 13:00:49,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-22 13:00:49,524 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 61 [2020-11-22 13:00:49,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:00:49,545 INFO L225 Difference]: With dead ends: 3472 [2020-11-22 13:00:49,545 INFO L226 Difference]: Without dead ends: 2999 [2020-11-22 13:00:49,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 349 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2020-11-22 13:00:49,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2999 states. [2020-11-22 13:00:49,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2999 to 849. [2020-11-22 13:00:49,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 849 states. [2020-11-22 13:00:49,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1169 transitions. [2020-11-22 13:00:49,698 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1169 transitions. Word has length 61 [2020-11-22 13:00:49,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:00:49,699 INFO L481 AbstractCegarLoop]: Abstraction has 849 states and 1169 transitions. [2020-11-22 13:00:49,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-22 13:00:49,699 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1169 transitions. [2020-11-22 13:00:49,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-11-22 13:00:49,700 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:49,701 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-22 13:00:50,328 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 cvc4 --incremental --print-success --lang smt --rewrite-divk,12 mathsat -unsat_core_generation=3 [2020-11-22 13:00:50,328 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:00:50,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:50,329 INFO L82 PathProgramCache]: Analyzing trace with hash -181917100, now seen corresponding path program 2 times [2020-11-22 13:00:50,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:00:50,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1570662642] [2020-11-22 13:00:50,329 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2020-11-22 13:00:51,886 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-22 13:00:51,887 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-11-22 13:00:51,887 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:00:53,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:00:53,219 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:00:53,494 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 13:00:53,494 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:00:53,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2020-11-22 13:00:53,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:00:53 BoogieIcfgContainer [2020-11-22 13:00:53,923 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:00:53,924 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:00:53,924 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:00:53,924 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:00:53,925 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:00:36" (3/4) ... [2020-11-22 13:00:53,927 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:00:54,100 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f2cbd913-769c-4b45-9d85-3fb9704e7ce7/bin/utaipan/witness.graphml [2020-11-22 13:00:54,100 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:00:54,102 INFO L168 Benchmark]: Toolchain (without parser) took 22825.38 ms. Allocated memory was 48.2 MB in the beginning and 237.0 MB in the end (delta: 188.7 MB). Free memory was 22.2 MB in the beginning and 153.2 MB in the end (delta: -131.0 MB). Peak memory consumption was 58.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:54,102 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 48.2 MB. Free memory was 29.7 MB in the beginning and 29.7 MB in the end (delta: 41.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:00:54,103 INFO L168 Benchmark]: CACSL2BoogieTranslator took 753.15 ms. Allocated memory was 48.2 MB in the beginning and 62.9 MB in the end (delta: 14.7 MB). Free memory was 22.0 MB in the beginning and 36.0 MB in the end (delta: -14.0 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:54,103 INFO L168 Benchmark]: Boogie Procedure Inliner took 154.54 ms. Allocated memory is still 62.9 MB. Free memory was 36.0 MB in the beginning and 41.2 MB in the end (delta: -5.2 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:54,104 INFO L168 Benchmark]: Boogie Preprocessor took 177.07 ms. Allocated memory is still 62.9 MB. Free memory was 41.2 MB in the beginning and 33.9 MB in the end (delta: 7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:54,104 INFO L168 Benchmark]: RCFGBuilder took 4000.50 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 33.9 MB in the beginning and 47.1 MB in the end (delta: -13.2 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:54,105 INFO L168 Benchmark]: TraceAbstraction took 17551.25 ms. Allocated memory was 92.3 MB in the beginning and 237.0 MB in the end (delta: 144.7 MB). Free memory was 46.5 MB in the beginning and 193.0 MB in the end (delta: -146.5 MB). Peak memory consumption was 98.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:54,105 INFO L168 Benchmark]: Witness Printer took 176.48 ms. Allocated memory is still 237.0 MB. Free memory was 193.0 MB in the beginning and 153.2 MB in the end (delta: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:54,107 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 48.2 MB. Free memory was 29.7 MB in the beginning and 29.7 MB in the end (delta: 41.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 753.15 ms. Allocated memory was 48.2 MB in the beginning and 62.9 MB in the end (delta: 14.7 MB). Free memory was 22.0 MB in the beginning and 36.0 MB in the end (delta: -14.0 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 154.54 ms. Allocated memory is still 62.9 MB. Free memory was 36.0 MB in the beginning and 41.2 MB in the end (delta: -5.2 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 177.07 ms. Allocated memory is still 62.9 MB. Free memory was 41.2 MB in the beginning and 33.9 MB in the end (delta: 7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 4000.50 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 33.9 MB in the beginning and 47.1 MB in the end (delta: -13.2 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17551.25 ms. Allocated memory was 92.3 MB in the beginning and 237.0 MB in the end (delta: 144.7 MB). Free memory was 46.5 MB in the beginning and 193.0 MB in the end (delta: -146.5 MB). Peak memory consumption was 98.4 MB. Max. memory is 16.1 GB. * Witness Printer took 176.48 ms. Allocated memory is still 237.0 MB. Free memory was 193.0 MB in the beginning and 153.2 MB in the end (delta: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L147] int __SELECTED_FEATURE_base ; [L148] int __SELECTED_FEATURE_highWaterSensor ; [L149] int __SELECTED_FEATURE_lowWaterSensor ; [L150] int __SELECTED_FEATURE_methaneQuery ; [L151] int __SELECTED_FEATURE_methaneAlarm ; [L152] int __SELECTED_FEATURE_stopCommand ; [L153] int __SELECTED_FEATURE_startCommand ; [L154] int __GUIDSL_ROOT_PRODUCTION ; [L192] int pumpRunning = 0; [L193] int systemActive = 1; [L778] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L975] int waterLevel = 1; [L976] int methaneLevelCritical = 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] int retValue_acc ; [L124] int tmp ; [L1109] __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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1094] __SELECTED_FEATURE_base = 1 [L1080] int retValue_acc ; [L1081] int choice = __VERIFIER_nondet_int(); [L1084] retValue_acc = choice [L1085] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1095] __SELECTED_FEATURE_highWaterSensor = select_one() [L1080] int retValue_acc ; [L1081] int choice = __VERIFIER_nondet_int(); [L1084] retValue_acc = choice [L1085] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1096] __SELECTED_FEATURE_lowWaterSensor = select_one() [L1080] int retValue_acc ; [L1081] int choice = __VERIFIER_nondet_int(); [L1084] retValue_acc = choice [L1085] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1097] __SELECTED_FEATURE_methaneQuery = select_one() [L1080] int retValue_acc ; [L1081] int choice = __VERIFIER_nondet_int(); [L1084] retValue_acc = choice [L1085] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1098] __SELECTED_FEATURE_methaneAlarm = select_one() [L1080] int retValue_acc ; [L1081] int choice = __VERIFIER_nondet_int(); [L1084] retValue_acc = choice [L1085] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1099] __SELECTED_FEATURE_stopCommand = select_one() [L1080] int retValue_acc ; [L1081] int choice = __VERIFIER_nondet_int(); [L1084] retValue_acc = choice [L1085] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1100] __SELECTED_FEATURE_startCommand = select_one() [L1114] int retValue_acc ; [L1117] retValue_acc = __SELECTED_FEATURE_base [L1118] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] tmp = valid_product() [L132] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L524] int splverifierCounter ; [L525] int tmp ; [L526] int tmp___0 ; [L527] int tmp___1 ; [L528] int tmp___2 ; [L531] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L533] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L535] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L541] tmp = __VERIFIER_nondet_int() [L543] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L993] COND TRUE waterLevel < 2 [L994] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L551] tmp___0 = __VERIFIER_nondet_int() [L553] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L561] tmp___2 = __VERIFIER_nondet_int() [L563] COND FALSE !(\read(tmp___2)) [L573] tmp___1 = __VERIFIER_nondet_int() [L575] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L199] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L206] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L342] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L299] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L256] COND TRUE \read(__SELECTED_FEATURE_highWaterSensor) [L228] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L231] COND TRUE ! pumpRunning [L462] int retValue_acc ; [L463] int tmp ; [L464] int tmp___0 ; [L1055] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L1058] COND FALSE !(waterLevel < 2) [L1062] retValue_acc = 0 [L1063] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L468] tmp = isHighWaterSensorDry() [L470] COND FALSE !(\read(tmp)) [L473] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L475] retValue_acc = tmp___0 [L476] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L233] tmp = isHighWaterLevel() [L235] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L384] COND FALSE !(\read(__SELECTED_FEATURE_methaneQuery)) [L359] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L158] int tmp ; [L159] int tmp___0 ; [L1046] int retValue_acc ; [L1049] retValue_acc = waterLevel [L1050] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L163] tmp = getWaterLevel() [L165] COND FALSE !(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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L533] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L535] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L541] tmp = __VERIFIER_nondet_int() [L543] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L551] tmp___0 = __VERIFIER_nondet_int() [L553] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L561] tmp___2 = __VERIFIER_nondet_int() [L563] COND FALSE !(\read(tmp___2)) [L573] tmp___1 = __VERIFIER_nondet_int() [L575] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L199] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L981] COND TRUE waterLevel > 0 [L982] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L206] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L342] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L299] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L256] COND TRUE \read(__SELECTED_FEATURE_highWaterSensor) [L228] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L231] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L158] int tmp ; [L159] int tmp___0 ; [L1046] int retValue_acc ; [L1049] retValue_acc = waterLevel [L1050] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L163] tmp = getWaterLevel() [L165] COND FALSE !(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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L533] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L535] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L541] tmp = __VERIFIER_nondet_int() [L543] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L551] tmp___0 = __VERIFIER_nondet_int() [L553] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L561] tmp___2 = __VERIFIER_nondet_int() [L563] COND FALSE !(\read(tmp___2)) [L573] tmp___1 = __VERIFIER_nondet_int() [L575] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L199] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L981] COND TRUE waterLevel > 0 [L982] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L206] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L342] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L299] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L256] COND TRUE \read(__SELECTED_FEATURE_highWaterSensor) [L228] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L231] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L158] int tmp ; [L159] int tmp___0 ; [L1046] int retValue_acc ; [L1049] retValue_acc = waterLevel [L1050] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L163] tmp = getWaterLevel() [L165] COND TRUE tmp == 0 [L417] int retValue_acc ; [L420] retValue_acc = pumpRunning [L421] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L167] tmp___0 = isPumpRunning() [L169] 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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L3] __assert_fail("0", "minepump_spec4_productSimulator.cil.c", 3, "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}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 473 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.2s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3833 SDtfs, 9255 SDslu, 8364 SDs, 0 SdLazy, 1248 SolverSat, 295 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1218 GetRequests, 1147 SyntacticMatches, 3 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=849occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 4737 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 3.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 682 NumberOfCodeBlocks, 682 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1178 ConstructedInterpolants, 1 QuantifiedInterpolants, 181687 SizeOfPredicates, 27 NumberOfNonLiveVariables, 3196 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 26 InterpolantComputations, 18 PerfectInterpolantSequences, 188/270 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...