./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product12.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_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/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 cf530681c562daa6fa9ab5223cf4d9c859dac38d ............................................................................................................................................ 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_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/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 cf530681c562daa6fa9ab5223cf4d9c859dac38d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:00:41,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:00:41,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:00:41,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:00:41,292 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:00:41,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:00:41,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:00:41,303 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:00:41,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:00:41,311 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:00:41,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:00:41,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:00:41,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:00:41,319 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:00:41,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:00:41,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:00:41,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:00:41,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:00:41,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:00:41,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:00:41,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:00:41,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:00:41,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:00:41,348 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:00:41,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:00:41,357 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:00:41,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:00:41,360 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:00:41,360 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:00:41,362 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:00:41,362 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:00:41,363 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:00:41,366 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:00:41,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:00:41,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:00:41,368 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:00:41,369 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:00:41,370 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:00:41,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:00:41,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:00:41,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:00:41,374 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:00:41,419 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:00:41,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:00:41,421 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:00:41,421 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:00:41,421 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:00:41,422 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:00:41,422 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:00:41,422 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:00:41,422 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:00:41,422 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:00:41,424 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:00:41,424 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:00:41,424 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:00:41,424 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:00:41,425 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:00:41,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:00:41,426 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:00:41,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:00:41,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:00:41,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:00:41,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:00:41,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:00:41,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:00:41,427 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:00:41,427 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:00:41,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:00:41,428 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:00:41,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:00:41,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:00:41,429 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:00:41,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:00:41,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:00:41,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:00:41,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:00:41,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:00:41,430 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:00:41,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:00:41,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:00:41,431 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:00:41,431 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:00:41,431 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_5b97fb32-0922-47fd-b08e-7b40ff1c609a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf530681c562daa6fa9ab5223cf4d9c859dac38d [2020-11-22 13:00:41,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:00:41,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:00:41,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:00:41,722 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:00:41,723 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:00:41,723 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2020-11-22 13:00:41,813 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/data/efa5ac4a0/15271b44d93d43ac912a55202a753924/FLAGf4257aca2 [2020-11-22 13:00:42,410 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:00:42,411 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2020-11-22 13:00:42,431 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/data/efa5ac4a0/15271b44d93d43ac912a55202a753924/FLAGf4257aca2 [2020-11-22 13:00:42,719 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/data/efa5ac4a0/15271b44d93d43ac912a55202a753924 [2020-11-22 13:00:42,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:00:42,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:00:42,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:00:42,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:00:42,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:00:42,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:00:42" (1/1) ... [2020-11-22 13:00:42,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2faad53b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:42, skipping insertion in model container [2020-11-22 13:00:42,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:00:42" (1/1) ... [2020-11-22 13:00:42,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:00:42,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:00:43,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:00:43,249 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-11-22 13:00:43,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6913004a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:43, skipping insertion in model container [2020-11-22 13:00:43,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:00:43,250 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:00:43,252 INFO L168 Benchmark]: Toolchain (without parser) took 525.07 ms. Allocated memory is still 94.4 MB. Free memory was 62.7 MB in the beginning and 68.6 MB in the end (delta: -5.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:43,253 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 94.4 MB. Free memory is still 53.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:00:43,254 INFO L168 Benchmark]: CACSL2BoogieTranslator took 519.76 ms. Allocated memory is still 94.4 MB. Free memory was 62.4 MB in the beginning and 68.6 MB in the end (delta: -6.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:43,256 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 94.4 MB. Free memory is still 53.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 519.76 ms. Allocated memory is still 94.4 MB. Free memory was 62.4 MB in the beginning and 68.6 MB in the end (delta: -6.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 454]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:00:45,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:00:45,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:00:45,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:00:45,460 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:00:45,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:00:45,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:00:45,471 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:00:45,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:00:45,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:00:45,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:00:45,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:00:45,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:00:45,492 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:00:45,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:00:45,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:00:45,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:00:45,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:00:45,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:00:45,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:00:45,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:00:45,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:00:45,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:00:45,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:00:45,535 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:00:45,538 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:00:45,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:00:45,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:00:45,542 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:00:45,543 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:00:45,543 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:00:45,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:00:45,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:00:45,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:00:45,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:00:45,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:00:45,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:00:45,550 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:00:45,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:00:45,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:00:45,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:00:45,553 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:00:45,601 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:00:45,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:00:45,610 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:00:45,610 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:00:45,610 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:00:45,611 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:00:45,611 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:00:45,612 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:00:45,612 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:00:45,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:00:45,614 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:00:45,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:00:45,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:00:45,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:00:45,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:00:45,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:00:45,616 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:00:45,616 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:00:45,617 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:00:45,618 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:00:45,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:00:45,623 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:00:45,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:00:45,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:00:45,624 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:00:45,625 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:00:45,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:00:45,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:00:45,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:00:45,626 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:00:45,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:00:45,626 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:00:45,626 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:00:45,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:00:45,627 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:00:45,627 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:00:45,627 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_5b97fb32-0922-47fd-b08e-7b40ff1c609a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf530681c562daa6fa9ab5223cf4d9c859dac38d [2020-11-22 13:00:45,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:00:46,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:00:46,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:00:46,015 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:00:46,016 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:00:46,017 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2020-11-22 13:00:46,076 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/data/a07d472cf/bcca97c0d89a477f9fdf9c80f161899a/FLAG4b7046eb5 [2020-11-22 13:00:46,657 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:00:46,658 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2020-11-22 13:00:46,679 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/data/a07d472cf/bcca97c0d89a477f9fdf9c80f161899a/FLAG4b7046eb5 [2020-11-22 13:00:47,026 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/data/a07d472cf/bcca97c0d89a477f9fdf9c80f161899a [2020-11-22 13:00:47,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:00:47,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:00:47,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:00:47,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:00:47,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:00:47,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:00:47" (1/1) ... [2020-11-22 13:00:47,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2108760c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:47, skipping insertion in model container [2020-11-22 13:00:47,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:00:47" (1/1) ... [2020-11-22 13:00:47,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:00:47,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:00:47,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:00:47,520 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:00:47,545 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:00:47,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:00:47,628 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:00:47,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:00:47,743 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:00:47,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:47 WrapperNode [2020-11-22 13:00:47,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:00:47,745 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:00:47,745 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:00:47,745 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:00:47,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:47" (1/1) ... [2020-11-22 13:00:47,771 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:47" (1/1) ... [2020-11-22 13:00:47,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:00:47,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:00:47,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:00:47,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:00:47,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:47" (1/1) ... [2020-11-22 13:00:47,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:47" (1/1) ... [2020-11-22 13:00:47,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:47" (1/1) ... [2020-11-22 13:00:47,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:47" (1/1) ... [2020-11-22 13:00:47,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:47" (1/1) ... [2020-11-22 13:00:47,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:47" (1/1) ... [2020-11-22 13:00:47,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:47" (1/1) ... [2020-11-22 13:00:47,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:00:47,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:00:47,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:00:47,840 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:00:47,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:00:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:00:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:00:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:00:47,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:00:50,385 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:00:50,385 INFO L298 CfgBuilder]: Removed 84 assume(true) statements. [2020-11-22 13:00:50,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:00:50 BoogieIcfgContainer [2020-11-22 13:00:50,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:00:50,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:00:50,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:00:50,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:00:50,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:00:47" (1/3) ... [2020-11-22 13:00:50,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526a49d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:00:50, skipping insertion in model container [2020-11-22 13:00:50,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:47" (2/3) ... [2020-11-22 13:00:50,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526a49d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:00:50, skipping insertion in model container [2020-11-22 13:00:50,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:00:50" (3/3) ... [2020-11-22 13:00:50,395 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product12.cil.c [2020-11-22 13:00:50,405 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:00:50,409 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 13:00:50,421 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 13:00:50,444 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:00:50,445 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:00:50,445 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:00:50,445 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:00:50,445 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:00:50,445 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:00:50,445 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:00:50,446 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:00:50,459 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2020-11-22 13:00:50,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 13:00:50,465 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:50,465 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 13:00:50,466 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:00:50,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:50,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1960119750, now seen corresponding path program 1 times [2020-11-22 13:00:50,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:00:50,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [955679437] [2020-11-22 13:00:50,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-22 13:00:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:50,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:00:50,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:00:50,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:50,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:00:50,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:50,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [955679437] [2020-11-22 13:00:50,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:00:50,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:00:50,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366153389] [2020-11-22 13:00:50,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:00:50,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:00:50,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:00:50,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:00:50,767 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 2 states. [2020-11-22 13:00:50,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:00:50,790 INFO L93 Difference]: Finished difference Result 127 states and 188 transitions. [2020-11-22 13:00:50,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:00:50,792 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-22 13:00:50,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:00:50,801 INFO L225 Difference]: With dead ends: 127 [2020-11-22 13:00:50,801 INFO L226 Difference]: Without dead ends: 61 [2020-11-22 13:00:50,804 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 13:00:50,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-11-22 13:00:50,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-11-22 13:00:50,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-11-22 13:00:50,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 84 transitions. [2020-11-22 13:00:50,839 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 84 transitions. Word has length 18 [2020-11-22 13:00:50,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:00:50,840 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 84 transitions. [2020-11-22 13:00:50,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:00:50,840 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 84 transitions. [2020-11-22 13:00:50,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-22 13:00:50,841 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:50,841 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 13:00:51,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:00:51,058 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:00:51,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:51,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1049088997, now seen corresponding path program 1 times [2020-11-22 13:00:51,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:00:51,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1155746835] [2020-11-22 13:00:51,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-22 13:00:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:51,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:00:51,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:00:51,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:51,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:00:51,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:51,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1155746835] [2020-11-22 13:00:51,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:00:51,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:00:51,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439854761] [2020-11-22 13:00:51,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:00:51,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:00:51,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:00:51,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:00:51,316 INFO L87 Difference]: Start difference. First operand 61 states and 84 transitions. Second operand 4 states. [2020-11-22 13:00:51,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:00:51,329 INFO L93 Difference]: Finished difference Result 61 states and 84 transitions. [2020-11-22 13:00:51,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:00:51,332 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-11-22 13:00:51,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:00:51,334 INFO L225 Difference]: With dead ends: 61 [2020-11-22 13:00:51,334 INFO L226 Difference]: Without dead ends: 31 [2020-11-22 13:00:51,335 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 13:00:51,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-22 13:00:51,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-11-22 13:00:51,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-22 13:00:51,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2020-11-22 13:00:51,348 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 43 transitions. Word has length 19 [2020-11-22 13:00:51,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:00:51,348 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 43 transitions. [2020-11-22 13:00:51,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:00:51,348 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2020-11-22 13:00:51,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 13:00:51,349 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:51,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:00:51,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:00:51,550 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:00:51,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:51,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1411810197, now seen corresponding path program 1 times [2020-11-22 13:00:51,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:00:51,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687692943] [2020-11-22 13:00:51,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-22 13:00:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:51,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:00:51,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:00:51,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:51,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:00:51,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:51,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1687692943] [2020-11-22 13:00:51,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:00:51,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:00:51,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932383746] [2020-11-22 13:00:51,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:00:51,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:00:51,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:00:51,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:00:51,818 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. Second operand 4 states. [2020-11-22 13:00:51,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:00:51,882 INFO L93 Difference]: Finished difference Result 106 states and 154 transitions. [2020-11-22 13:00:51,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:00:51,883 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-22 13:00:51,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:00:51,884 INFO L225 Difference]: With dead ends: 106 [2020-11-22 13:00:51,884 INFO L226 Difference]: Without dead ends: 81 [2020-11-22 13:00:51,885 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:00:51,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-11-22 13:00:51,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 52. [2020-11-22 13:00:51,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-22 13:00:51,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 75 transitions. [2020-11-22 13:00:51,896 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 75 transitions. Word has length 24 [2020-11-22 13:00:51,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:00:51,896 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 75 transitions. [2020-11-22 13:00:51,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:00:51,896 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions. [2020-11-22 13:00:51,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 13:00:51,897 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:51,897 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:00:52,119 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:00:52,120 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:00:52,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:52,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1755761006, now seen corresponding path program 1 times [2020-11-22 13:00:52,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:00:52,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1716590482] [2020-11-22 13:00:52,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-22 13:00:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:52,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:00:52,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:00:52,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:52,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:00:52,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:52,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1716590482] [2020-11-22 13:00:52,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:00:52,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-22 13:00:52,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588361290] [2020-11-22 13:00:52,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 13:00:52,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:00:52,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 13:00:52,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:00:52,433 INFO L87 Difference]: Start difference. First operand 52 states and 75 transitions. Second operand 8 states. [2020-11-22 13:00:52,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:00:52,826 INFO L93 Difference]: Finished difference Result 506 states and 780 transitions. [2020-11-22 13:00:52,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-22 13:00:52,827 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2020-11-22 13:00:52,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:00:52,831 INFO L225 Difference]: With dead ends: 506 [2020-11-22 13:00:52,831 INFO L226 Difference]: Without dead ends: 460 [2020-11-22 13:00:52,833 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-11-22 13:00:52,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2020-11-22 13:00:52,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 130. [2020-11-22 13:00:52,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-11-22 13:00:52,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 187 transitions. [2020-11-22 13:00:52,861 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 187 transitions. Word has length 24 [2020-11-22 13:00:52,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:00:52,861 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 187 transitions. [2020-11-22 13:00:52,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 13:00:52,861 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 187 transitions. [2020-11-22 13:00:52,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-22 13:00:52,863 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:52,863 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 13:00:53,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:00:53,077 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:00:53,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:53,078 INFO L82 PathProgramCache]: Analyzing trace with hash 120698128, now seen corresponding path program 1 times [2020-11-22 13:00:53,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:00:53,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [256018517] [2020-11-22 13:00:53,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-22 13:00:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:00:54,569 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:00:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:00:55,598 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:00:55,727 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 13:00:55,727 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:00:55,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:00:56,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:00:56 BoogieIcfgContainer [2020-11-22 13:00:56,047 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:00:56,048 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:00:56,048 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:00:56,048 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:00:56,049 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:00:50" (3/4) ... [2020-11-22 13:00:56,054 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:00:56,158 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5b97fb32-0922-47fd-b08e-7b40ff1c609a/bin/utaipan/witness.graphml [2020-11-22 13:00:56,161 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:00:56,163 INFO L168 Benchmark]: Toolchain (without parser) took 9130.49 ms. Allocated memory was 60.8 MB in the beginning and 92.3 MB in the end (delta: 31.5 MB). Free memory was 38.0 MB in the beginning and 44.7 MB in the end (delta: -6.7 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:56,164 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 60.8 MB. Free memory was 41.7 MB in the beginning and 41.7 MB in the end (delta: 27.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:00:56,165 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.28 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 37.7 MB in the beginning and 56.5 MB in the end (delta: -18.7 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:56,166 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.50 ms. Allocated memory is still 75.5 MB. Free memory was 56.5 MB in the beginning and 53.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:56,167 INFO L168 Benchmark]: Boogie Preprocessor took 36.23 ms. Allocated memory is still 75.5 MB. Free memory was 53.8 MB in the beginning and 51.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:56,168 INFO L168 Benchmark]: RCFGBuilder took 2547.20 ms. Allocated memory is still 75.5 MB. Free memory was 51.4 MB in the beginning and 40.0 MB in the end (delta: 11.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:56,171 INFO L168 Benchmark]: TraceAbstraction took 5658.77 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 39.5 MB in the beginning and 55.9 MB in the end (delta: -16.4 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:56,171 INFO L168 Benchmark]: Witness Printer took 113.32 ms. Allocated memory is still 92.3 MB. Free memory was 55.2 MB in the beginning and 44.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:56,173 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 60.8 MB. Free memory was 41.7 MB in the beginning and 41.7 MB in the end (delta: 27.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 703.28 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 37.7 MB in the beginning and 56.5 MB in the end (delta: -18.7 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.50 ms. Allocated memory is still 75.5 MB. Free memory was 56.5 MB in the beginning and 53.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.23 ms. Allocated memory is still 75.5 MB. Free memory was 53.8 MB in the beginning and 51.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2547.20 ms. Allocated memory is still 75.5 MB. Free memory was 51.4 MB in the beginning and 40.0 MB in the end (delta: 11.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5658.77 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 39.5 MB in the beginning and 55.9 MB in the end (delta: -16.4 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. * Witness Printer took 113.32 ms. Allocated memory is still 92.3 MB. Free memory was 55.2 MB in the beginning and 44.7 MB in the end (delta: 10.5 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: [L160] int pumpRunning = 0; [L161] int systemActive = 1; [L308] int waterLevel = 1; [L309] int methaneLevelCritical = 0; [L595] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L792] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L865] int retValue_acc ; [L866] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L417] int retValue_acc ; [L420] retValue_acc = 1 [L421] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L872] tmp = valid_product() [L874] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L87] int splverifierCounter ; [L88] int tmp ; [L89] int tmp___0 ; [L90] int tmp___1 ; [L91] int tmp___2 ; [L94] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L96] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L98] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L104] tmp = __VERIFIER_nondet_int() [L106] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L326] COND TRUE waterLevel < 2 [L327] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L114] tmp___0 = __VERIFIER_nondet_int() [L116] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L124] tmp___2 = __VERIFIER_nondet_int() [L126] COND TRUE \read(tmp___2) [L303] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L167] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L174] COND TRUE \read(systemActive) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L347] int retValue_acc ; [L350] retValue_acc = methaneLevelCritical [L351] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) [L379] int retValue_acc ; [L382] retValue_acc = waterLevel [L383] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L59] tmp___0 = getWaterLevel() [L61] COND TRUE tmp___0 == 2 [L240] int retValue_acc ; [L243] retValue_acc = pumpRunning [L244] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L63] tmp___1 = isPumpRunning() [L65] 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_product12.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, 68 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 240 SDtfs, 569 SDslu, 515 SDs, 0 SdLazy, 95 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=130occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 359 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 7764 SizeOfPredicates, 6 NumberOfNonLiveVariables, 791 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...