./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product07.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_c6447370-a07d-4b37-9da8-03c89f555fde/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/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 6bc56b3d4460bea28e0863848945154ca9602d93 ............................................................................................................................................ 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_c6447370-a07d-4b37-9da8-03c89f555fde/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/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 6bc56b3d4460bea28e0863848945154ca9602d93 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-28 07:20:27,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:20:27,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:20:27,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:20:27,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:20:27,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:20:27,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:20:27,888 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:20:27,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:20:27,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:20:27,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:20:27,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:20:27,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:20:27,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:20:27,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:20:27,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:20:27,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:20:27,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:20:27,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:20:27,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:20:27,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:20:27,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:20:27,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:20:27,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:20:27,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:20:27,924 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:20:27,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:20:27,926 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:20:27,927 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:20:27,929 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:20:27,929 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:20:27,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:20:27,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:20:27,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:20:27,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:20:27,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:20:27,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:20:27,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:20:27,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:20:27,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:20:27,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:20:27,942 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:20:27,971 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:20:27,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:20:27,973 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:20:27,973 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:20:27,973 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:20:27,974 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:20:27,974 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:20:27,974 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:20:27,975 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:20:27,975 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:20:27,975 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:20:27,976 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:20:27,976 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:20:27,976 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:20:27,977 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:20:27,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:20:27,978 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:20:27,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:20:27,979 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:20:27,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:20:27,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:20:27,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:20:27,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:20:27,980 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:20:27,981 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:20:27,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:20:27,982 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:20:27,982 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:20:27,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:20:27,982 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:20:27,983 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:20:27,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:20:27,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:20:27,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:20:27,984 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:20:27,984 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:20:27,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:20:27,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:20:27,985 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:20:27,985 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:20:27,986 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_c6447370-a07d-4b37-9da8-03c89f555fde/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6bc56b3d4460bea28e0863848945154ca9602d93 [2020-11-28 07:20:28,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:20:28,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:20:28,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:20:28,318 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:20:28,319 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:20:28,320 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c [2020-11-28 07:20:28,435 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/bin/utaipan/data/81d145016/3c4f8bae6e2642868fe4ec244248d61e/FLAG9425e091d [2020-11-28 07:20:29,002 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:20:29,003 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c [2020-11-28 07:20:29,032 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/bin/utaipan/data/81d145016/3c4f8bae6e2642868fe4ec244248d61e/FLAG9425e091d [2020-11-28 07:20:29,313 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/bin/utaipan/data/81d145016/3c4f8bae6e2642868fe4ec244248d61e [2020-11-28 07:20:29,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:20:29,317 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:20:29,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:20:29,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:20:29,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:20:29,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:20:29" (1/1) ... [2020-11-28 07:20:29,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69c916aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:20:29, skipping insertion in model container [2020-11-28 07:20:29,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:20:29" (1/1) ... [2020-11-28 07:20:29,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:20:29,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:20:29,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:20:29,770 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) [2020-11-28 07:20:29,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@241de987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:20:29, skipping insertion in model container [2020-11-28 07:20:29,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:20:29,772 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-28 07:20:29,780 INFO L168 Benchmark]: Toolchain (without parser) took 456.02 ms. Allocated memory is still 102.8 MB. Free memory was 69.6 MB in the beginning and 77.6 MB in the end (delta: -8.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:20:29,781 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 73.4 MB. Free memory was 49.6 MB in the beginning and 49.6 MB in the end (delta: 27.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:20:29,782 INFO L168 Benchmark]: CACSL2BoogieTranslator took 451.73 ms. Allocated memory is still 102.8 MB. Free memory was 69.4 MB in the beginning and 77.6 MB in the end (delta: -8.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:20:29,784 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 73.4 MB. Free memory was 49.6 MB in the beginning and 49.6 MB in the end (delta: 27.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 451.73 ms. Allocated memory is still 102.8 MB. Free memory was 69.4 MB in the beginning and 77.6 MB in the end (delta: -8.2 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: 218]: 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 [2020-11-28 07:20:32,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:20:32,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:20:32,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:20:32,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:20:32,572 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:20:32,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:20:32,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:20:32,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:20:32,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:20:32,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:20:32,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:20:32,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:20:32,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:20:32,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:20:32,600 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:20:32,601 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:20:32,603 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:20:32,605 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:20:32,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:20:32,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:20:32,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:20:32,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:20:32,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:20:32,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:20:32,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:20:32,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:20:32,631 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:20:32,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:20:32,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:20:32,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:20:32,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:20:32,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:20:32,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:20:32,646 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:20:32,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:20:32,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:20:32,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:20:32,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:20:32,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:20:32,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:20:32,654 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-28 07:20:32,709 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:20:32,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:20:32,710 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:20:32,710 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:20:32,711 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:20:32,711 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:20:32,711 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:20:32,712 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:20:32,712 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:20:32,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:20:32,713 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:20:32,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:20:32,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:20:32,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:20:32,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:20:32,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:20:32,715 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:20:32,715 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 07:20:32,716 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 07:20:32,716 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:20:32,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:20:32,716 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:20:32,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:20:32,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:20:32,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 07:20:32,734 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:20:32,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:20:32,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:20:32,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:20:32,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:20:32,736 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:20:32,736 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-28 07:20:32,736 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 07:20:32,736 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:20:32,737 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:20:32,738 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:20:32,738 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_c6447370-a07d-4b37-9da8-03c89f555fde/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6bc56b3d4460bea28e0863848945154ca9602d93 [2020-11-28 07:20:33,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:20:33,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:20:33,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:20:33,147 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:20:33,148 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:20:33,149 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c [2020-11-28 07:20:33,218 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/bin/utaipan/data/a31c066cd/dcc9c00e5ee74e88b6db8d90ef559174/FLAG6b16e2c11 [2020-11-28 07:20:33,872 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:20:33,872 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c [2020-11-28 07:20:33,893 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/bin/utaipan/data/a31c066cd/dcc9c00e5ee74e88b6db8d90ef559174/FLAG6b16e2c11 [2020-11-28 07:20:34,124 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/bin/utaipan/data/a31c066cd/dcc9c00e5ee74e88b6db8d90ef559174 [2020-11-28 07:20:34,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:20:34,129 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:20:34,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:20:34,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:20:34,139 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:20:34,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:20:34" (1/1) ... [2020-11-28 07:20:34,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bbfb49b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:20:34, skipping insertion in model container [2020-11-28 07:20:34,150 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:20:34" (1/1) ... [2020-11-28 07:20:34,158 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:20:34,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:20:34,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:20:34,565 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-28 07:20:34,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:20:34,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:20:34,701 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:20:34,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:20:34,858 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:20:34,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:20:34 WrapperNode [2020-11-28 07:20:34,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:20:34,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:20:34,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:20:34,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:20:34,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:20:34" (1/1) ... [2020-11-28 07:20:34,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:20:34" (1/1) ... [2020-11-28 07:20:34,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:20:34,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:20:34,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:20:34,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:20:34,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:20:34" (1/1) ... [2020-11-28 07:20:34,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:20:34" (1/1) ... [2020-11-28 07:20:34,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:20:34" (1/1) ... [2020-11-28 07:20:34,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:20:34" (1/1) ... [2020-11-28 07:20:34,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:20:34" (1/1) ... [2020-11-28 07:20:34,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:20:34" (1/1) ... [2020-11-28 07:20:34,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:20:34" (1/1) ... [2020-11-28 07:20:35,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:20:35,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:20:35,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:20:35,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:20:35,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:20:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/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 [2020-11-28 07:20:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:20:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 07:20:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:20:35,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:20:37,884 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:20:37,885 INFO L298 CfgBuilder]: Removed 112 assume(true) statements. [2020-11-28 07:20:37,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:20:37 BoogieIcfgContainer [2020-11-28 07:20:37,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:20:37,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:20:37,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:20:37,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:20:37,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:20:34" (1/3) ... [2020-11-28 07:20:37,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c7a3f1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:20:37, skipping insertion in model container [2020-11-28 07:20:37,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:20:34" (2/3) ... [2020-11-28 07:20:37,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c7a3f1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:20:37, skipping insertion in model container [2020-11-28 07:20:37,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:20:37" (3/3) ... [2020-11-28 07:20:37,898 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product07.cil.c [2020-11-28 07:20:37,914 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:20:37,917 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 07:20:37,930 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 07:20:37,978 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:20:37,979 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:20:37,979 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:20:37,979 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:20:37,979 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:20:37,980 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:20:37,980 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:20:37,980 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:20:38,001 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-11-28 07:20:38,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 07:20:38,012 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:20:38,013 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:20:38,015 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:20:38,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:20:38,023 INFO L82 PathProgramCache]: Analyzing trace with hash 785714734, now seen corresponding path program 1 times [2020-11-28 07:20:38,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:20:38,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2102126316] [2020-11-28 07:20:38,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/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 [2020-11-28 07:20:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:20:38,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-28 07:20:38,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:20:38,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:20:38,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:20:38,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:20:38,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2102126316] [2020-11-28 07:20:38,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:20:38,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 07:20:38,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805874362] [2020-11-28 07:20:38,363 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:20:38,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:20:38,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:20:38,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:20:38,387 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 2 states. [2020-11-28 07:20:38,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:20:38,415 INFO L93 Difference]: Finished difference Result 151 states and 224 transitions. [2020-11-28 07:20:38,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:20:38,417 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-28 07:20:38,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:20:38,428 INFO L225 Difference]: With dead ends: 151 [2020-11-28 07:20:38,429 INFO L226 Difference]: Without dead ends: 73 [2020-11-28 07:20:38,432 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 [2020-11-28 07:20:38,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-11-28 07:20:38,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-11-28 07:20:38,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-11-28 07:20:38,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2020-11-28 07:20:38,477 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 18 [2020-11-28 07:20:38,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:20:38,477 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2020-11-28 07:20:38,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:20:38,478 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2020-11-28 07:20:38,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 07:20:38,479 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:20:38,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:20:38,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 07:20:38,705 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:20:38,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:20:38,706 INFO L82 PathProgramCache]: Analyzing trace with hash -125316019, now seen corresponding path program 1 times [2020-11-28 07:20:38,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:20:38,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [923242794] [2020-11-28 07:20:38,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/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 [2020-11-28 07:20:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:20:38,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 07:20:38,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:20:38,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:20:38,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:20:38,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:20:38,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [923242794] [2020-11-28 07:20:38,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:20:38,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-28 07:20:38,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994859768] [2020-11-28 07:20:38,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:20:38,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:20:38,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:20:38,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:20:38,993 INFO L87 Difference]: Start difference. First operand 73 states and 102 transitions. Second operand 4 states. [2020-11-28 07:20:39,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:20:39,013 INFO L93 Difference]: Finished difference Result 73 states and 102 transitions. [2020-11-28 07:20:39,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:20:39,015 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-11-28 07:20:39,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:20:39,018 INFO L225 Difference]: With dead ends: 73 [2020-11-28 07:20:39,018 INFO L226 Difference]: Without dead ends: 35 [2020-11-28 07:20:39,019 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 [2020-11-28 07:20:39,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-28 07:20:39,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-11-28 07:20:39,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-28 07:20:39,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2020-11-28 07:20:39,033 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 19 [2020-11-28 07:20:39,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:20:39,037 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2020-11-28 07:20:39,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:20:39,038 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2020-11-28 07:20:39,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 07:20:39,042 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:20:39,042 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] [2020-11-28 07:20:39,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 07:20:39,256 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:20:39,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:20:39,260 INFO L82 PathProgramCache]: Analyzing trace with hash -227571320, now seen corresponding path program 1 times [2020-11-28 07:20:39,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:20:39,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1970213280] [2020-11-28 07:20:39,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/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 [2020-11-28 07:20:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:20:39,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 07:20:39,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:20:39,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:20:39,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:20:39,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:20:39,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1970213280] [2020-11-28 07:20:39,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:20:39,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-28 07:20:39,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961115728] [2020-11-28 07:20:39,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:20:39,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:20:39,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:20:39,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:20:39,536 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 4 states. [2020-11-28 07:20:39,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:20:39,579 INFO L93 Difference]: Finished difference Result 118 states and 172 transitions. [2020-11-28 07:20:39,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:20:39,582 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-28 07:20:39,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:20:39,584 INFO L225 Difference]: With dead ends: 118 [2020-11-28 07:20:39,584 INFO L226 Difference]: Without dead ends: 89 [2020-11-28 07:20:39,585 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 [2020-11-28 07:20:39,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-28 07:20:39,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 56. [2020-11-28 07:20:39,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-28 07:20:39,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 81 transitions. [2020-11-28 07:20:39,603 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 81 transitions. Word has length 24 [2020-11-28 07:20:39,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:20:39,603 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 81 transitions. [2020-11-28 07:20:39,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:20:39,604 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 81 transitions. [2020-11-28 07:20:39,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 07:20:39,606 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:20:39,606 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] [2020-11-28 07:20:39,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 07:20:39,821 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:20:39,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:20:39,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1937535180, now seen corresponding path program 1 times [2020-11-28 07:20:39,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:20:39,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1414481848] [2020-11-28 07:20:39,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/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 [2020-11-28 07:20:40,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:20:40,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 07:20:40,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:20:40,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:20:40,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:20:40,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:20:40,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1414481848] [2020-11-28 07:20:40,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:20:40,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-28 07:20:40,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393106075] [2020-11-28 07:20:40,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 07:20:40,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:20:40,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 07:20:40,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-28 07:20:40,167 INFO L87 Difference]: Start difference. First operand 56 states and 81 transitions. Second operand 8 states. [2020-11-28 07:20:40,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:20:40,696 INFO L93 Difference]: Finished difference Result 570 states and 876 transitions. [2020-11-28 07:20:40,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-28 07:20:40,697 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-11-28 07:20:40,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:20:40,707 INFO L225 Difference]: With dead ends: 570 [2020-11-28 07:20:40,708 INFO L226 Difference]: Without dead ends: 520 [2020-11-28 07:20:40,710 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-11-28 07:20:40,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2020-11-28 07:20:40,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 142. [2020-11-28 07:20:40,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-11-28 07:20:40,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 205 transitions. [2020-11-28 07:20:40,770 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 205 transitions. Word has length 25 [2020-11-28 07:20:40,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:20:40,771 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 205 transitions. [2020-11-28 07:20:40,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 07:20:40,771 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 205 transitions. [2020-11-28 07:20:40,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 07:20:40,777 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:20:40,777 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] [2020-11-28 07:20:41,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-28 07:20:41,000 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:20:41,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:20:41,001 INFO L82 PathProgramCache]: Analyzing trace with hash -21773810, now seen corresponding path program 1 times [2020-11-28 07:20:41,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:20:41,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481521573] [2020-11-28 07:20:41,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/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 [2020-11-28 07:20:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:20:42,683 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:20:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:20:44,006 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:20:44,158 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-28 07:20:44,159 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:20:44,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-28 07:20:44,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:20:44 BoogieIcfgContainer [2020-11-28 07:20:44,512 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:20:44,513 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:20:44,513 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:20:44,513 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:20:44,514 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:20:37" (3/4) ... [2020-11-28 07:20:44,516 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 07:20:44,601 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c6447370-a07d-4b37-9da8-03c89f555fde/bin/utaipan/witness.graphml [2020-11-28 07:20:44,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:20:44,603 INFO L168 Benchmark]: Toolchain (without parser) took 10473.47 ms. Allocated memory was 60.8 MB in the beginning and 100.7 MB in the end (delta: 39.8 MB). Free memory was 40.4 MB in the beginning and 56.2 MB in the end (delta: -15.8 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:20:44,604 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 60.8 MB. Free memory is still 42.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:20:44,604 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.22 ms. Allocated memory is still 60.8 MB. Free memory was 40.2 MB in the beginning and 30.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:20:44,605 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.36 ms. Allocated memory is still 60.8 MB. Free memory was 29.9 MB in the beginning and 27.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:20:44,605 INFO L168 Benchmark]: Boogie Preprocessor took 71.12 ms. Allocated memory is still 60.8 MB. Free memory was 27.0 MB in the beginning and 42.5 MB in the end (delta: -15.6 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:20:44,606 INFO L168 Benchmark]: RCFGBuilder took 2855.94 ms. Allocated memory was 60.8 MB in the beginning and 83.9 MB in the end (delta: 23.1 MB). Free memory was 42.5 MB in the beginning and 57.1 MB in the end (delta: -14.6 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.1 GB. [2020-11-28 07:20:44,606 INFO L168 Benchmark]: TraceAbstraction took 6623.91 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 56.5 MB in the beginning and 66.8 MB in the end (delta: -10.3 MB). Peak memory consumption was 44.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:20:44,607 INFO L168 Benchmark]: Witness Printer took 88.45 ms. Allocated memory is still 100.7 MB. Free memory was 66.8 MB in the beginning and 56.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:20:44,609 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 60.8 MB. Free memory is still 42.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 728.22 ms. Allocated memory is still 60.8 MB. Free memory was 40.2 MB in the beginning and 30.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 97.36 ms. Allocated memory is still 60.8 MB. Free memory was 29.9 MB in the beginning and 27.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.12 ms. Allocated memory is still 60.8 MB. Free memory was 27.0 MB in the beginning and 42.5 MB in the end (delta: -15.6 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2855.94 ms. Allocated memory was 60.8 MB in the beginning and 83.9 MB in the end (delta: 23.1 MB). Free memory was 42.5 MB in the beginning and 57.1 MB in the end (delta: -14.6 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6623.91 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 56.5 MB in the beginning and 66.8 MB in the end (delta: -10.3 MB). Peak memory consumption was 44.1 MB. Max. memory is 16.1 GB. * Witness Printer took 88.45 ms. Allocated memory is still 100.7 MB. Free memory was 66.8 MB in the beginning and 56.2 MB in the end (delta: 10.7 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: [L89] int cleanupTimeShifts = 4; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L598] int pumpRunning = 0; [L599] int systemActive = 1; [L813] int waterLevel = 1; [L814] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L167] int retValue_acc ; [L168] 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] [L174] tmp = valid_product() [L176] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L747] int splverifierCounter ; [L748] int tmp ; [L749] int tmp___0 ; [L750] int tmp___1 ; [L751] int tmp___2 ; [L754] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L756] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L758] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L764] tmp = __VERIFIER_nondet_int() [L766] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L831] COND TRUE waterLevel < 2 [L832] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L774] tmp___0 = __VERIFIER_nondet_int() [L776] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L784] tmp___2 = __VERIFIER_nondet_int() [L786] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L605] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L612] COND TRUE \read(systemActive) [L634] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L637] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L560] int tmp ; [L561] int tmp___0 ; [L562] int tmp___1 ; [L852] int retValue_acc ; [L855] retValue_acc = methaneLevelCritical [L856] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L566] tmp = isMethaneLevelCritical() [L568] COND FALSE !(\read(tmp)) [L884] int retValue_acc ; [L887] retValue_acc = waterLevel [L888] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L572] tmp___0 = getWaterLevel() [L574] COND TRUE tmp___0 == 2 [L686] int retValue_acc ; [L689] retValue_acc = pumpRunning [L690] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L576] tmp___1 = isPumpRunning() [L578] 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_product07.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, 80 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 282 SDtfs, 628 SDslu, 635 SDs, 0 SdLazy, 104 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=142occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 411 StatesRemovedByMinimization, 2 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, 10339 SizeOfPredicates, 6 NumberOfNonLiveVariables, 790 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...