./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product44.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_28aa0bac-6c47-459e-a9d6-31967600d631/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/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 e60ff67dae14f5ff0ee1027845136e2245e7a1f5 ............................................................................................................................................ 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_28aa0bac-6c47-459e-a9d6-31967600d631/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/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 e60ff67dae14f5ff0ee1027845136e2245e7a1f5 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 12:59:34,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:59:34,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:59:34,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:59:34,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:59:34,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:59:34,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:59:34,577 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:59:34,581 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:59:34,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:59:34,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:59:34,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:59:34,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:59:34,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:59:34,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:59:34,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:59:34,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:59:34,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:59:34,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:59:34,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:59:34,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:59:34,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:59:34,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:59:34,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:59:34,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:59:34,632 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:59:34,632 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:59:34,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:59:34,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:59:34,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:59:34,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:59:34,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:59:34,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:59:34,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:59:34,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:59:34,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:59:34,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:59:34,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:59:34,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:59:34,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:59:34,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:59:34,650 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:59:34,702 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:59:34,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:59:34,704 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:59:34,704 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:59:34,704 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:59:34,704 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:59:34,705 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:59:34,705 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:59:34,705 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:59:34,705 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:59:34,706 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:59:34,707 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:59:34,707 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:59:34,707 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:59:34,708 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:59:34,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:59:34,709 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:59:34,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:59:34,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:59:34,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:59:34,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:59:34,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:59:34,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:59:34,710 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:59:34,711 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:59:34,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:59:34,711 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:59:34,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:59:34,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:59:34,712 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:59:34,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:59:34,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:59:34,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:59:34,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:59:34,713 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:59:34,714 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:59:34,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:59:34,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:59:34,714 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:59:34,715 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:59:34,715 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_28aa0bac-6c47-459e-a9d6-31967600d631/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e60ff67dae14f5ff0ee1027845136e2245e7a1f5 [2020-11-22 12:59:35,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:59:35,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:59:35,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:59:35,091 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:59:35,092 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:59:35,093 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2020-11-22 12:59:35,168 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/bin/utaipan/data/17eafb45f/4ada3c96da2f470997622d6371043b7f/FLAG162e354ff [2020-11-22 12:59:35,849 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:59:35,849 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2020-11-22 12:59:35,874 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/bin/utaipan/data/17eafb45f/4ada3c96da2f470997622d6371043b7f/FLAG162e354ff [2020-11-22 12:59:36,141 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/bin/utaipan/data/17eafb45f/4ada3c96da2f470997622d6371043b7f [2020-11-22 12:59:36,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:59:36,145 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:59:36,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:59:36,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:59:36,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:59:36,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:59:36" (1/1) ... [2020-11-22 12:59:36,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1be674ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:36, skipping insertion in model container [2020-11-22 12:59:36,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:59:36" (1/1) ... [2020-11-22 12:59:36,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:59:36,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:59:36,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:59:36,660 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 12:59:36,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@673c8909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:36, skipping insertion in model container [2020-11-22 12:59:36,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:59:36,666 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 12:59:36,669 INFO L168 Benchmark]: Toolchain (without parser) took 521.85 ms. Allocated memory is still 100.7 MB. Free memory was 71.0 MB in the beginning and 74.2 MB in the end (delta: -3.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:36,671 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 100.7 MB. Free memory was 59.1 MB in the beginning and 59.0 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:59:36,672 INFO L168 Benchmark]: CACSL2BoogieTranslator took 498.38 ms. Allocated memory is still 100.7 MB. Free memory was 71.0 MB in the beginning and 74.2 MB in the end (delta: -3.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:36,675 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 100.7 MB. Free memory was 59.1 MB in the beginning and 59.0 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 498.38 ms. Allocated memory is still 100.7 MB. Free memory was 71.0 MB in the beginning and 74.2 MB in the end (delta: -3.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 353]: 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 12:59:39,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:59:39,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:59:39,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:59:39,081 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:59:39,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:59:39,084 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:59:39,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:59:39,090 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:59:39,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:59:39,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:59:39,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:59:39,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:59:39,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:59:39,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:59:39,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:59:39,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:59:39,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:59:39,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:59:39,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:59:39,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:59:39,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:59:39,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:59:39,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:59:39,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:59:39,121 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:59:39,121 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:59:39,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:59:39,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:59:39,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:59:39,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:59:39,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:59:39,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:59:39,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:59:39,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:59:39,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:59:39,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:59:39,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:59:39,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:59:39,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:59:39,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:59:39,146 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 12:59:39,199 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:59:39,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:59:39,200 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:59:39,200 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:59:39,200 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:59:39,201 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:59:39,201 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:59:39,201 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:59:39,201 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:59:39,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:59:39,202 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:59:39,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:59:39,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:59:39,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:59:39,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:59:39,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:59:39,203 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:59:39,204 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 12:59:39,204 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 12:59:39,204 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:59:39,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:59:39,204 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:59:39,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:59:39,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:59:39,205 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 12:59:39,205 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:59:39,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:59:39,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:59:39,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:59:39,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:59:39,206 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:59:39,207 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 12:59:39,207 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 12:59:39,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:59:39,207 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:59:39,207 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:59:39,208 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_28aa0bac-6c47-459e-a9d6-31967600d631/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e60ff67dae14f5ff0ee1027845136e2245e7a1f5 [2020-11-22 12:59:39,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:59:39,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:59:39,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:59:39,604 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:59:39,605 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:59:39,606 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2020-11-22 12:59:39,672 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/bin/utaipan/data/d5bee5313/29c29c94d9d24cd9aa484f13fc8c5985/FLAG235812f53 [2020-11-22 12:59:40,359 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:59:40,360 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2020-11-22 12:59:40,375 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/bin/utaipan/data/d5bee5313/29c29c94d9d24cd9aa484f13fc8c5985/FLAG235812f53 [2020-11-22 12:59:40,613 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/bin/utaipan/data/d5bee5313/29c29c94d9d24cd9aa484f13fc8c5985 [2020-11-22 12:59:40,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:59:40,617 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:59:40,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:59:40,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:59:40,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:59:40,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:59:40" (1/1) ... [2020-11-22 12:59:40,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b74554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:40, skipping insertion in model container [2020-11-22 12:59:40,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:59:40" (1/1) ... [2020-11-22 12:59:40,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:59:40,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:59:41,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:59:41,036 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 12:59:41,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:59:41,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:59:41,142 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:59:41,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:59:41,302 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:59:41,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:41 WrapperNode [2020-11-22 12:59:41,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:59:41,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:59:41,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:59:41,304 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:59:41,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:41" (1/1) ... [2020-11-22 12:59:41,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:41" (1/1) ... [2020-11-22 12:59:41,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:59:41,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:59:41,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:59:41,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:59:41,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:41" (1/1) ... [2020-11-22 12:59:41,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:41" (1/1) ... [2020-11-22 12:59:41,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:41" (1/1) ... [2020-11-22 12:59:41,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:41" (1/1) ... [2020-11-22 12:59:41,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:41" (1/1) ... [2020-11-22 12:59:41,416 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:41" (1/1) ... [2020-11-22 12:59:41,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:41" (1/1) ... [2020-11-22 12:59:41,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:59:41,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:59:41,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:59:41,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:59:41,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/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 12:59:41,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:59:41,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 12:59:41,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:59:41,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:59:43,944 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:59:43,947 INFO L298 CfgBuilder]: Removed 132 assume(true) statements. [2020-11-22 12:59:43,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:59:43 BoogieIcfgContainer [2020-11-22 12:59:43,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:59:43,953 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:59:43,953 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:59:43,956 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:59:43,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:59:40" (1/3) ... [2020-11-22 12:59:43,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ce844c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:59:43, skipping insertion in model container [2020-11-22 12:59:43,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:41" (2/3) ... [2020-11-22 12:59:43,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ce844c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:59:43, skipping insertion in model container [2020-11-22 12:59:43,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:59:43" (3/3) ... [2020-11-22 12:59:43,961 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c [2020-11-22 12:59:43,972 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:59:43,977 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 12:59:43,990 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 12:59:44,022 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:59:44,022 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:59:44,023 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:59:44,023 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:59:44,023 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:59:44,023 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:59:44,023 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:59:44,023 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:59:44,045 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2020-11-22 12:59:44,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 12:59:44,050 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:44,051 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 12:59:44,051 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:44,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:44,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1597314013, now seen corresponding path program 1 times [2020-11-22 12:59:44,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:44,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081370313] [2020-11-22 12:59:44,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/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 12:59:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:44,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 12:59:44,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:44,380 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 12:59:44,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:44,386 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 12:59:44,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081370313] [2020-11-22 12:59:44,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:44,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 12:59:44,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996874457] [2020-11-22 12:59:44,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:59:44,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:44,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:59:44,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:59:44,409 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 2 states. [2020-11-22 12:59:44,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:44,437 INFO L93 Difference]: Finished difference Result 187 states and 278 transitions. [2020-11-22 12:59:44,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:59:44,438 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-22 12:59:44,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:44,449 INFO L225 Difference]: With dead ends: 187 [2020-11-22 12:59:44,449 INFO L226 Difference]: Without dead ends: 91 [2020-11-22 12:59:44,452 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 12:59:44,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-11-22 12:59:44,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2020-11-22 12:59:44,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-11-22 12:59:44,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 129 transitions. [2020-11-22 12:59:44,494 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 129 transitions. Word has length 18 [2020-11-22 12:59:44,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:44,494 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 129 transitions. [2020-11-22 12:59:44,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:59:44,495 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 129 transitions. [2020-11-22 12:59:44,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-22 12:59:44,496 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:44,496 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:59:44,707 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 12:59:44,708 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:44,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:44,709 INFO L82 PathProgramCache]: Analyzing trace with hash 686283260, now seen corresponding path program 1 times [2020-11-22 12:59:44,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:44,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2050788052] [2020-11-22 12:59:44,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/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 12:59:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:44,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:59:44,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:44,965 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 12:59:44,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:44,981 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 12:59:44,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2050788052] [2020-11-22 12:59:44,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:44,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 12:59:44,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003239077] [2020-11-22 12:59:44,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:59:44,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:44,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:59:44,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:59:44,985 INFO L87 Difference]: Start difference. First operand 91 states and 129 transitions. Second operand 4 states. [2020-11-22 12:59:45,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:45,005 INFO L93 Difference]: Finished difference Result 91 states and 129 transitions. [2020-11-22 12:59:45,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:59:45,006 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-11-22 12:59:45,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:45,007 INFO L225 Difference]: With dead ends: 91 [2020-11-22 12:59:45,007 INFO L226 Difference]: Without dead ends: 41 [2020-11-22 12:59:45,009 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 12:59:45,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-11-22 12:59:45,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-11-22 12:59:45,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-22 12:59:45,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2020-11-22 12:59:45,015 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 19 [2020-11-22 12:59:45,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:45,016 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2020-11-22 12:59:45,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:59:45,016 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2020-11-22 12:59:45,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 12:59:45,017 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:45,017 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 12:59:45,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 12:59:45,227 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:45,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:45,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1440289089, now seen corresponding path program 1 times [2020-11-22 12:59:45,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:45,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [212853980] [2020-11-22 12:59:45,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/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 12:59:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:45,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:59:45,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:45,496 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 12:59:45,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:45,505 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 12:59:45,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [212853980] [2020-11-22 12:59:45,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:45,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 12:59:45,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923453818] [2020-11-22 12:59:45,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:59:45,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:45,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:59:45,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:59:45,508 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand 4 states. [2020-11-22 12:59:45,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:45,573 INFO L93 Difference]: Finished difference Result 136 states and 199 transitions. [2020-11-22 12:59:45,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 12:59:45,574 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-22 12:59:45,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:45,575 INFO L225 Difference]: With dead ends: 136 [2020-11-22 12:59:45,576 INFO L226 Difference]: Without dead ends: 101 [2020-11-22 12:59:45,576 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 12:59:45,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-11-22 12:59:45,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 62. [2020-11-22 12:59:45,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-11-22 12:59:45,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 90 transitions. [2020-11-22 12:59:45,597 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 90 transitions. Word has length 24 [2020-11-22 12:59:45,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:45,598 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 90 transitions. [2020-11-22 12:59:45,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:59:45,598 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 90 transitions. [2020-11-22 12:59:45,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-22 12:59:45,600 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:45,600 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 12:59:45,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 12:59:45,812 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:45,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:45,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1072133948, now seen corresponding path program 1 times [2020-11-22 12:59:45,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:45,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090849790] [2020-11-22 12:59:45,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/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 12:59:46,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:46,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:59:46,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:46,037 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 12:59:46,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:46,040 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 12:59:46,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090849790] [2020-11-22 12:59:46,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:46,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 12:59:46,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182980334] [2020-11-22 12:59:46,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:59:46,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:46,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:59:46,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:59:46,042 INFO L87 Difference]: Start difference. First operand 62 states and 90 transitions. Second operand 3 states. [2020-11-22 12:59:46,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:46,093 INFO L93 Difference]: Finished difference Result 141 states and 207 transitions. [2020-11-22 12:59:46,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:59:46,093 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-22 12:59:46,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:46,094 INFO L225 Difference]: With dead ends: 141 [2020-11-22 12:59:46,094 INFO L226 Difference]: Without dead ends: 85 [2020-11-22 12:59:46,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:59:46,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-11-22 12:59:46,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2020-11-22 12:59:46,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-11-22 12:59:46,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 118 transitions. [2020-11-22 12:59:46,107 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 118 transitions. Word has length 25 [2020-11-22 12:59:46,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:46,107 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 118 transitions. [2020-11-22 12:59:46,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:59:46,107 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 118 transitions. [2020-11-22 12:59:46,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-22 12:59:46,109 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:46,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:59:46,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 12:59:46,324 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:46,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:46,325 INFO L82 PathProgramCache]: Analyzing trace with hash -2003629676, now seen corresponding path program 1 times [2020-11-22 12:59:46,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:46,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849918808] [2020-11-22 12:59:46,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/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 12:59:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:46,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:59:46,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:46,579 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 12:59:46,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:46,638 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 12:59:46,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [849918808] [2020-11-22 12:59:46,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:46,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-22 12:59:46,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038979611] [2020-11-22 12:59:46,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 12:59:46,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:46,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 12:59:46,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 12:59:46,641 INFO L87 Difference]: Start difference. First operand 83 states and 118 transitions. Second operand 8 states. [2020-11-22 12:59:47,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:47,179 INFO L93 Difference]: Finished difference Result 888 states and 1304 transitions. [2020-11-22 12:59:47,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-22 12:59:47,180 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2020-11-22 12:59:47,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:47,188 INFO L225 Difference]: With dead ends: 888 [2020-11-22 12:59:47,189 INFO L226 Difference]: Without dead ends: 811 [2020-11-22 12:59:47,196 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 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 12:59:47,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2020-11-22 12:59:47,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 218. [2020-11-22 12:59:47,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-11-22 12:59:47,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 306 transitions. [2020-11-22 12:59:47,268 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 306 transitions. Word has length 27 [2020-11-22 12:59:47,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:47,268 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 306 transitions. [2020-11-22 12:59:47,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 12:59:47,269 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 306 transitions. [2020-11-22 12:59:47,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-22 12:59:47,271 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:47,272 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:59:47,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 12:59:47,489 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:47,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:47,489 INFO L82 PathProgramCache]: Analyzing trace with hash 591073878, now seen corresponding path program 1 times [2020-11-22 12:59:47,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:47,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [876747171] [2020-11-22 12:59:47,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-22 12:59:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:59:48,787 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:59:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:59:50,055 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:59:50,199 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 12:59:50,199 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:59:50,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 12:59:50,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:59:50 BoogieIcfgContainer [2020-11-22 12:59:50,590 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:59:50,591 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:59:50,591 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:59:50,591 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:59:50,592 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:59:43" (3/4) ... [2020-11-22 12:59:50,594 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 12:59:50,722 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_28aa0bac-6c47-459e-a9d6-31967600d631/bin/utaipan/witness.graphml [2020-11-22 12:59:50,722 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:59:50,724 INFO L168 Benchmark]: Toolchain (without parser) took 10105.87 ms. Allocated memory was 46.1 MB in the beginning and 83.9 MB in the end (delta: 37.7 MB). Free memory was 30.4 MB in the beginning and 50.8 MB in the end (delta: -20.4 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:50,725 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 46.1 MB. Free memory is still 28.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:59:50,726 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.59 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 30.3 MB in the beginning and 35.0 MB in the end (delta: -4.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:50,726 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.69 ms. Allocated memory is still 56.6 MB. Free memory was 35.0 MB in the beginning and 31.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:50,727 INFO L168 Benchmark]: Boogie Preprocessor took 47.31 ms. Allocated memory is still 56.6 MB. Free memory was 31.7 MB in the beginning and 29.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:50,727 INFO L168 Benchmark]: RCFGBuilder took 2524.33 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 29.0 MB in the beginning and 30.0 MB in the end (delta: -949.9 kB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:50,728 INFO L168 Benchmark]: TraceAbstraction took 6637.50 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 29.5 MB in the beginning and 62.1 MB in the end (delta: -32.5 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:50,728 INFO L168 Benchmark]: Witness Printer took 131.26 ms. Allocated memory is still 83.9 MB. Free memory was 62.1 MB in the beginning and 50.8 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:50,730 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 46.1 MB. Free memory is still 28.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 684.59 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 30.3 MB in the beginning and 35.0 MB in the end (delta: -4.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.69 ms. Allocated memory is still 56.6 MB. Free memory was 35.0 MB in the beginning and 31.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.31 ms. Allocated memory is still 56.6 MB. Free memory was 31.7 MB in the beginning and 29.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2524.33 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 29.0 MB in the beginning and 30.0 MB in the end (delta: -949.9 kB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6637.50 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 29.5 MB in the beginning and 62.1 MB in the end (delta: -32.5 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. * Witness Printer took 131.26 ms. Allocated memory is still 83.9 MB. Free memory was 62.1 MB in the beginning and 50.8 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L187] int waterLevel = 1; [L188] int methaneLevelCritical = 0; [L494] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L695] int pumpRunning = 0; [L696] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] int retValue_acc ; [L124] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L307] int retValue_acc ; [L310] retValue_acc = 1 [L311] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L889] int splverifierCounter ; [L890] int tmp ; [L891] int tmp___0 ; [L892] int tmp___1 ; [L893] int tmp___2 ; [L896] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L898] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L900] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L906] tmp = __VERIFIER_nondet_int() [L908] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L205] COND TRUE waterLevel < 2 [L206] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L916] tmp___0 = __VERIFIER_nondet_int() [L918] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L926] tmp___2 = __VERIFIER_nondet_int() [L928] COND FALSE !(\read(tmp___2)) [L934] tmp___1 = __VERIFIER_nondet_int() [L936] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L868] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L875] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L702] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L709] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L151] int tmp ; [L152] int tmp___0 ; [L153] int tmp___1 ; [L226] int retValue_acc ; [L229] retValue_acc = methaneLevelCritical [L230] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L157] tmp = isMethaneLevelCritical() [L159] COND FALSE !(\read(tmp)) [L258] int retValue_acc ; [L261] retValue_acc = waterLevel [L262] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L163] tmp___0 = getWaterLevel() [L165] COND TRUE tmp___0 == 2 [L801] int retValue_acc ; [L804] retValue_acc = pumpRunning [L805] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L167] tmp___1 = isPumpRunning() [L169] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product44.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 98 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 396 SDtfs, 981 SDslu, 772 SDs, 0 SdLazy, 143 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 225 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred in iteration=5, 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, 5 MinimizatonAttempts, 634 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 10620 SizeOfPredicates, 6 NumberOfNonLiveVariables, 996 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...