./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product06.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_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product06.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/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 daa9da8859207d10d864ef24e046b0be94d62d80 ............................................................................................................................................ 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_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product06.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/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 daa9da8859207d10d864ef24e046b0be94d62d80 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 13:05:13,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:05:13,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:05:13,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:05:13,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:05:13,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:05:13,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:05:13,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:05:13,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:05:13,811 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:05:13,812 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:05:13,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:05:13,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:05:13,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:05:13,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:05:13,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:05:13,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:05:13,827 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:05:13,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:05:13,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:05:13,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:05:13,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:05:13,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:05:13,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:05:13,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:05:13,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:05:13,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:05:13,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:05:13,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:05:13,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:05:13,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:05:13,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:05:13,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:05:13,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:05:13,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:05:13,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:05:13,863 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:05:13,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:05:13,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:05:13,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:05:13,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:05:13,874 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:05:13,912 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:05:13,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:05:13,913 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:05:13,914 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:05:13,914 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:05:13,914 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:05:13,914 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:05:13,914 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:05:13,915 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:05:13,915 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:05:13,916 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:05:13,916 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:05:13,916 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:05:13,916 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:05:13,917 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:05:13,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:05:13,917 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:05:13,918 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:05:13,918 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:05:13,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:05:13,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:05:13,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:05:13,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:05:13,919 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:05:13,919 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:05:13,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:05:13,919 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:05:13,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:05:13,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:05:13,921 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:05:13,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:05:13,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:05:13,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:05:13,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:05:13,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:05:13,923 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:05:13,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:05:13,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:05:13,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:05:13,923 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:05:13,923 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_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> daa9da8859207d10d864ef24e046b0be94d62d80 [2020-11-22 13:05:14,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:05:14,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:05:14,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:05:14,265 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:05:14,266 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:05:14,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product06.cil.c [2020-11-22 13:05:14,351 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/bin/utaipan/data/8258902b9/f6a23034fc8e43368b82f309199dffdd/FLAGcf55642a3 [2020-11-22 13:05:14,989 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:05:14,992 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/sv-benchmarks/c/product-lines/minepump_spec3_product06.cil.c [2020-11-22 13:05:15,016 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/bin/utaipan/data/8258902b9/f6a23034fc8e43368b82f309199dffdd/FLAGcf55642a3 [2020-11-22 13:05:15,249 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/bin/utaipan/data/8258902b9/f6a23034fc8e43368b82f309199dffdd [2020-11-22 13:05:15,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:05:15,253 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:05:15,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:15,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:05:15,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:05:15,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:15" (1/1) ... [2020-11-22 13:05:15,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a38a055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:15, skipping insertion in model container [2020-11-22 13:05:15,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:15" (1/1) ... [2020-11-22 13:05:15,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:05:15,315 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:05:15,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:15,761 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 13:05:15,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1db26bb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:15, skipping insertion in model container [2020-11-22 13:05:15,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:15,763 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:05:15,767 INFO L168 Benchmark]: Toolchain (without parser) took 511.13 ms. Allocated memory is still 90.2 MB. Free memory was 54.4 MB in the beginning and 64.1 MB in the end (delta: -9.7 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:15,768 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 90.2 MB. Free memory is still 71.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:05:15,770 INFO L168 Benchmark]: CACSL2BoogieTranslator took 508.19 ms. Allocated memory is still 90.2 MB. Free memory was 54.2 MB in the beginning and 64.1 MB in the end (delta: -9.9 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:15,773 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 90.2 MB. Free memory is still 71.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 508.19 ms. Allocated memory is still 90.2 MB. Free memory was 54.2 MB in the beginning and 64.1 MB in the end (delta: -9.9 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 515]: 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 13:05:18,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:05:18,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:05:18,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:05:18,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:05:18,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:05:18,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:05:18,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:05:18,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:05:18,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:05:18,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:05:18,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:05:18,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:05:18,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:05:18,224 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:05:18,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:05:18,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:05:18,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:05:18,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:05:18,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:05:18,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:05:18,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:05:18,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:05:18,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:05:18,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:05:18,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:05:18,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:05:18,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:05:18,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:05:18,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:05:18,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:05:18,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:05:18,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:05:18,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:05:18,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:05:18,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:05:18,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:05:18,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:05:18,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:05:18,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:05:18,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:05:18,293 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:05:18,333 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:05:18,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:05:18,335 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:05:18,336 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:05:18,336 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:05:18,336 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:05:18,336 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:05:18,337 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:05:18,337 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:05:18,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:05:18,340 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:05:18,340 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:05:18,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:05:18,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:05:18,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:05:18,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:05:18,341 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:05:18,342 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:05:18,342 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:05:18,342 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:05:18,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:05:18,343 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:05:18,343 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:05:18,343 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:05:18,344 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:05:18,344 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:05:18,344 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:05:18,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:05:18,345 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:05:18,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:05:18,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:05:18,345 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:05:18,346 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:05:18,346 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:05:18,347 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:05:18,347 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:05:18,347 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_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> daa9da8859207d10d864ef24e046b0be94d62d80 [2020-11-22 13:05:18,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:05:18,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:05:18,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:05:18,811 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:05:18,812 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:05:18,813 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product06.cil.c [2020-11-22 13:05:18,898 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/bin/utaipan/data/771971564/d61397f2bd6c4c97bd3b25616bdd5558/FLAG013a1d5c2 [2020-11-22 13:05:19,477 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:05:19,478 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/sv-benchmarks/c/product-lines/minepump_spec3_product06.cil.c [2020-11-22 13:05:19,489 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/bin/utaipan/data/771971564/d61397f2bd6c4c97bd3b25616bdd5558/FLAG013a1d5c2 [2020-11-22 13:05:19,822 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/bin/utaipan/data/771971564/d61397f2bd6c4c97bd3b25616bdd5558 [2020-11-22 13:05:19,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:05:19,828 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:05:19,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:19,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:05:19,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:05:19,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:19" (1/1) ... [2020-11-22 13:05:19,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75eae36b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:19, skipping insertion in model container [2020-11-22 13:05:19,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:19" (1/1) ... [2020-11-22 13:05:19,850 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:05:19,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:05:20,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:20,334 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:05:20,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:05:20,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:20,405 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:05:20,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:20,496 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:05:20,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:20 WrapperNode [2020-11-22 13:05:20,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:20,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:20,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:05:20,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:05:20,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:20" (1/1) ... [2020-11-22 13:05:20,524 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:20" (1/1) ... [2020-11-22 13:05:20,589 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:20,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:05:20,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:05:20,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:05:20,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:20" (1/1) ... [2020-11-22 13:05:20,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:20" (1/1) ... [2020-11-22 13:05:20,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:20" (1/1) ... [2020-11-22 13:05:20,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:20" (1/1) ... [2020-11-22 13:05:20,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:20" (1/1) ... [2020-11-22 13:05:20,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:20" (1/1) ... [2020-11-22 13:05:20,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:20" (1/1) ... [2020-11-22 13:05:20,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:05:20,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:05:20,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:05:20,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:05:20,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/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 13:05:20,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:05:20,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:05:20,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:05:20,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:05:23,125 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:05:23,125 INFO L298 CfgBuilder]: Removed 110 assume(true) statements. [2020-11-22 13:05:23,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:23 BoogieIcfgContainer [2020-11-22 13:05:23,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:05:23,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:05:23,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:05:23,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:05:23,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:05:19" (1/3) ... [2020-11-22 13:05:23,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed55d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:23, skipping insertion in model container [2020-11-22 13:05:23,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:20" (2/3) ... [2020-11-22 13:05:23,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed55d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:23, skipping insertion in model container [2020-11-22 13:05:23,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:23" (3/3) ... [2020-11-22 13:05:23,134 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product06.cil.c [2020-11-22 13:05:23,144 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:05:23,149 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 13:05:23,161 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 13:05:23,200 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:05:23,201 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:05:23,201 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:05:23,201 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:05:23,201 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:05:23,202 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:05:23,202 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:05:23,202 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:05:23,221 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2020-11-22 13:05:23,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 13:05:23,228 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:23,229 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:23,230 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:23,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:23,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1323954982, now seen corresponding path program 1 times [2020-11-22 13:05:23,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:23,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [279591365] [2020-11-22 13:05:23,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/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 13:05:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:23,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:05:23,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:23,540 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 13:05:23,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:23,547 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 13:05:23,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [279591365] [2020-11-22 13:05:23,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:23,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:05:23,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227806994] [2020-11-22 13:05:23,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:05:23,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:23,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:05:23,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:05:23,570 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2020-11-22 13:05:23,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:23,616 INFO L93 Difference]: Finished difference Result 147 states and 218 transitions. [2020-11-22 13:05:23,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:05:23,618 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-22 13:05:23,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:23,629 INFO L225 Difference]: With dead ends: 147 [2020-11-22 13:05:23,630 INFO L226 Difference]: Without dead ends: 71 [2020-11-22 13:05:23,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 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 13:05:23,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-22 13:05:23,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-11-22 13:05:23,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-22 13:05:23,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 99 transitions. [2020-11-22 13:05:23,679 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 99 transitions. Word has length 18 [2020-11-22 13:05:23,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:23,680 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 99 transitions. [2020-11-22 13:05:23,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:05:23,680 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 99 transitions. [2020-11-22 13:05:23,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-22 13:05:23,682 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:23,682 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:23,906 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:05:23,907 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:23,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:23,907 INFO L82 PathProgramCache]: Analyzing trace with hash 412924229, now seen corresponding path program 1 times [2020-11-22 13:05:23,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:23,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [150736862] [2020-11-22 13:05:23,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/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 13:05:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:24,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:05:24,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:24,132 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 13:05:24,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:24,151 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 13:05:24,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [150736862] [2020-11-22 13:05:24,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:24,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:05:24,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520940274] [2020-11-22 13:05:24,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:05:24,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:24,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:05:24,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:05:24,157 INFO L87 Difference]: Start difference. First operand 71 states and 99 transitions. Second operand 4 states. [2020-11-22 13:05:24,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:24,177 INFO L93 Difference]: Finished difference Result 71 states and 99 transitions. [2020-11-22 13:05:24,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:05:24,179 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-11-22 13:05:24,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:24,180 INFO L225 Difference]: With dead ends: 71 [2020-11-22 13:05:24,180 INFO L226 Difference]: Without dead ends: 33 [2020-11-22 13:05:24,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 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 13:05:24,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-22 13:05:24,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-11-22 13:05:24,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-22 13:05:24,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 46 transitions. [2020-11-22 13:05:24,190 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 46 transitions. Word has length 19 [2020-11-22 13:05:24,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:24,193 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 46 transitions. [2020-11-22 13:05:24,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:05:24,194 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2020-11-22 13:05:24,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 13:05:24,196 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:24,196 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 13:05:24,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:05:24,410 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:24,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:24,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1180040056, now seen corresponding path program 1 times [2020-11-22 13:05:24,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:24,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074424450] [2020-11-22 13:05:24,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/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 13:05:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:24,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:05:24,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:24,650 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 13:05:24,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:24,660 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 13:05:24,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074424450] [2020-11-22 13:05:24,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:24,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:05:24,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658093015] [2020-11-22 13:05:24,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:05:24,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:24,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:05:24,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:05:24,662 INFO L87 Difference]: Start difference. First operand 33 states and 46 transitions. Second operand 4 states. [2020-11-22 13:05:24,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:24,694 INFO L93 Difference]: Finished difference Result 60 states and 86 transitions. [2020-11-22 13:05:24,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:05:24,695 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-22 13:05:24,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:24,696 INFO L225 Difference]: With dead ends: 60 [2020-11-22 13:05:24,696 INFO L226 Difference]: Without dead ends: 33 [2020-11-22 13:05:24,697 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 13:05:24,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-22 13:05:24,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-11-22 13:05:24,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-22 13:05:24,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 45 transitions. [2020-11-22 13:05:24,702 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 45 transitions. Word has length 24 [2020-11-22 13:05:24,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:24,703 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 45 transitions. [2020-11-22 13:05:24,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:05:24,703 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2020-11-22 13:05:24,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-22 13:05:24,704 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:24,704 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:24,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:05:24,928 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:24,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:24,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1819191868, now seen corresponding path program 1 times [2020-11-22 13:05:24,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:24,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1460039734] [2020-11-22 13:05:24,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/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 13:05:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:25,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:05:25,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:25,183 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 13:05:25,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:25,228 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 13:05:25,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1460039734] [2020-11-22 13:05:25,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:25,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-22 13:05:25,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045035836] [2020-11-22 13:05:25,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 13:05:25,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:25,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 13:05:25,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:05:25,231 INFO L87 Difference]: Start difference. First operand 33 states and 45 transitions. Second operand 8 states. [2020-11-22 13:05:25,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:25,644 INFO L93 Difference]: Finished difference Result 308 states and 461 transitions. [2020-11-22 13:05:25,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-22 13:05:25,645 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-11-22 13:05:25,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:25,648 INFO L225 Difference]: With dead ends: 308 [2020-11-22 13:05:25,648 INFO L226 Difference]: Without dead ends: 281 [2020-11-22 13:05:25,649 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-11-22 13:05:25,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-11-22 13:05:25,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 78. [2020-11-22 13:05:25,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-11-22 13:05:25,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 109 transitions. [2020-11-22 13:05:25,669 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 109 transitions. Word has length 25 [2020-11-22 13:05:25,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:25,669 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 109 transitions. [2020-11-22 13:05:25,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 13:05:25,670 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 109 transitions. [2020-11-22 13:05:25,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-22 13:05:25,671 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:25,671 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:25,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:05:25,888 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:25,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:25,889 INFO L82 PathProgramCache]: Analyzing trace with hash 516466438, now seen corresponding path program 1 times [2020-11-22 13:05:25,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:25,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [868866520] [2020-11-22 13:05:25,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/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 13:05:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:05:27,666 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:05:28,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:05:28,743 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:05:28,868 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 13:05:28,868 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:05:29,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:05:29,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:05:29 BoogieIcfgContainer [2020-11-22 13:05:29,194 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:05:29,200 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:05:29,200 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:05:29,200 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:05:29,201 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:23" (3/4) ... [2020-11-22 13:05:29,203 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:05:29,324 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9f0f35bf-5654-4b86-a97e-2a7e74679a8c/bin/utaipan/witness.graphml [2020-11-22 13:05:29,325 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:05:29,327 INFO L168 Benchmark]: Toolchain (without parser) took 9498.13 ms. Allocated memory was 60.8 MB in the beginning and 92.3 MB in the end (delta: 31.5 MB). Free memory was 38.9 MB in the beginning and 37.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:29,327 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 60.8 MB. Free memory was 42.6 MB in the beginning and 42.5 MB in the end (delta: 39.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:05:29,328 INFO L168 Benchmark]: CACSL2BoogieTranslator took 666.35 ms. Allocated memory is still 60.8 MB. Free memory was 38.6 MB in the beginning and 29.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:29,328 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.28 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 29.7 MB in the beginning and 57.6 MB in the end (delta: -27.9 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:29,329 INFO L168 Benchmark]: Boogie Preprocessor took 40.99 ms. Allocated memory is still 75.5 MB. Free memory was 57.6 MB in the beginning and 55.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:05:29,329 INFO L168 Benchmark]: RCFGBuilder took 2494.89 ms. Allocated memory is still 75.5 MB. Free memory was 55.5 MB in the beginning and 46.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:29,330 INFO L168 Benchmark]: TraceAbstraction took 6066.77 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 45.6 MB in the beginning and 48.7 MB in the end (delta: -3.1 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:29,330 INFO L168 Benchmark]: Witness Printer took 124.76 ms. Allocated memory is still 92.3 MB. Free memory was 48.7 MB in the beginning and 37.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:29,333 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 60.8 MB. Free memory was 42.6 MB in the beginning and 42.5 MB in the end (delta: 39.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 666.35 ms. Allocated memory is still 60.8 MB. Free memory was 38.6 MB in the beginning and 29.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.28 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 29.7 MB in the beginning and 57.6 MB in the end (delta: -27.9 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.99 ms. Allocated memory is still 75.5 MB. Free memory was 57.6 MB in the beginning and 55.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2494.89 ms. Allocated memory is still 75.5 MB. Free memory was 55.5 MB in the beginning and 46.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6066.77 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 45.6 MB in the beginning and 48.7 MB in the end (delta: -3.1 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. * Witness Printer took 124.76 ms. Allocated memory is still 92.3 MB. Free memory was 48.7 MB in the beginning and 37.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 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: [L98] int pumpRunning = 0; [L99] int systemActive = 1; [L311] int waterLevel = 1; [L312] int methaneLevelCritical = 0; [L391] int cleanupTimeShifts = 4; [L656] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L464] int retValue_acc ; [L465] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L471] tmp = valid_product() [L473] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L244] int splverifierCounter ; [L245] int tmp ; [L246] int tmp___0 ; [L247] int tmp___1 ; [L248] int tmp___2 ; [L251] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L253] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L255] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L261] tmp = __VERIFIER_nondet_int() [L263] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L329] COND TRUE waterLevel < 2 [L330] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L271] tmp___0 = __VERIFIER_nondet_int() [L273] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L281] tmp___2 = __VERIFIER_nondet_int() [L283] COND TRUE \read(tmp___2) [L235] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L106] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L113] COND TRUE \read(systemActive) [L135] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L138] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L854] int tmp ; [L855] int tmp___0 ; [L856] int tmp___1 ; [L350] int retValue_acc ; [L353] retValue_acc = methaneLevelCritical [L354] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L860] tmp = isMethaneLevelCritical() [L862] COND FALSE !(\read(tmp)) [L382] int retValue_acc ; [L385] retValue_acc = waterLevel [L386] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L866] tmp___0 = getWaterLevel() [L868] COND TRUE tmp___0 == 2 [L187] int retValue_acc ; [L190] retValue_acc = pumpRunning [L191] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L870] tmp___1 = isPumpRunning() [L872] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product06.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 264 SDtfs, 579 SDslu, 471 SDs, 0 SdLazy, 87 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 203 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 8246 SizeOfPredicates, 6 NumberOfNonLiveVariables, 792 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...