./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI --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 0c75cc0efa833cee2ae88b3635c1f8807d970760 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI --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 0c75cc0efa833cee2ae88b3635c1f8807d970760 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-7b2dab5 [2021-10-11 02:29:34,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:29:34,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:29:35,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:29:35,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:29:35,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:29:35,024 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:29:35,028 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:29:35,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:29:35,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:29:35,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:29:35,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:29:35,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:29:35,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:29:35,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:29:35,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:29:35,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:29:35,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:29:35,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:29:35,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:29:35,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:29:35,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:29:35,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:29:35,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:29:35,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:29:35,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:29:35,060 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:29:35,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:29:35,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:29:35,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:29:35,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:29:35,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:29:35,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:29:35,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:29:35,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:29:35,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:29:35,071 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:29:35,071 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:29:35,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:29:35,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:29:35,074 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:29:35,075 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:29:35,103 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:29:35,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:29:35,104 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:29:35,104 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:29:35,105 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:29:35,105 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:29:35,105 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:29:35,106 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:29:35,106 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:29:35,106 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:29:35,107 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:29:35,107 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:29:35,107 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:29:35,108 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:29:35,108 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:29:35,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:29:35,109 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:29:35,110 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:29:35,110 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:29:35,110 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:29:35,111 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:29:35,111 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:29:35,111 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:29:35,112 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:29:35,112 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:29:35,112 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:29:35,113 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:29:35,113 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:29:35,113 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:29:35,114 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:29:35,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:29:35,114 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:29:35,115 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:29:35,115 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:29:35,115 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:29:35,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:29:35,116 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:29:35,116 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:29:35,116 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:29:35,117 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_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c75cc0efa833cee2ae88b3635c1f8807d970760 [2021-10-11 02:29:35,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:29:35,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:29:35,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:29:35,444 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:29:35,445 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:29:35,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2021-10-11 02:29:35,536 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/data/414fb9dcc/1df037a0ba9c4fb9b1ceef4e6fb2f408/FLAG20b00954a [2021-10-11 02:29:36,167 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:29:36,168 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2021-10-11 02:29:36,190 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/data/414fb9dcc/1df037a0ba9c4fb9b1ceef4e6fb2f408/FLAG20b00954a [2021-10-11 02:29:36,498 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/data/414fb9dcc/1df037a0ba9c4fb9b1ceef4e6fb2f408 [2021-10-11 02:29:36,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:29:36,504 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:29:36,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:36,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:29:36,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:29:36,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:36" (1/1) ... [2021-10-11 02:29:36,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@647a8b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:36, skipping insertion in model container [2021-10-11 02:29:36,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:36" (1/1) ... [2021-10-11 02:29:36,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:29:36,573 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:29:36,916 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c[18698,18711] [2021-10-11 02:29:36,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:36,934 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) [2021-10-11 02:29:36,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@524f1d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:36, skipping insertion in model container [2021-10-11 02:29:36,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:36,936 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:29:36,947 INFO L168 Benchmark]: Toolchain (without parser) took 433.17 ms. Allocated memory is still 92.3 MB. Free memory was 59.1 MB in the beginning and 65.6 MB in the end (delta: -6.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:36,948 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 92.3 MB. Free memory was 47.1 MB in the beginning and 47.0 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:36,949 INFO L168 Benchmark]: CACSL2BoogieTranslator took 429.90 ms. Allocated memory is still 92.3 MB. Free memory was 58.9 MB in the beginning and 65.6 MB in the end (delta: -6.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:36,952 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 92.3 MB. Free memory was 47.1 MB in the beginning and 47.0 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 429.90 ms. Allocated memory is still 92.3 MB. Free memory was 58.9 MB in the beginning and 65.6 MB in the end (delta: -6.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 560]: 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 0.2.0-7b2dab5 [2021-10-11 02:29:39,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:29:39,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:29:39,754 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:29:39,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:29:39,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:29:39,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:29:39,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:29:39,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:29:39,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:29:39,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:29:39,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:29:39,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:29:39,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:29:39,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:29:39,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:29:39,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:29:39,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:29:39,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:29:39,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:29:39,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:29:39,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:29:39,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:29:39,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:29:39,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:29:39,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:29:39,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:29:39,841 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:29:39,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:29:39,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:29:39,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:29:39,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:29:39,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:29:39,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:29:39,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:29:39,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:29:39,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:29:39,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:29:39,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:29:39,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:29:39,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:29:39,858 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:29:39,906 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:29:39,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:29:39,909 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:29:39,909 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:29:39,910 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:29:39,910 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:29:39,910 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:29:39,911 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:29:39,911 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:29:39,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:29:39,914 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:29:39,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:29:39,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:29:39,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:29:39,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:29:39,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:29:39,917 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:29:39,917 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:29:39,917 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:29:39,918 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:29:39,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:29:39,918 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:29:39,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:29:39,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:29:39,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:29:39,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:29:39,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:29:39,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:29:39,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:29:39,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:29:39,922 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:29:39,922 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:29:39,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:29:39,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:29:39,923 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:29:39,924 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_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c75cc0efa833cee2ae88b3635c1f8807d970760 [2021-10-11 02:29:40,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:29:40,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:29:40,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:29:40,435 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:29:40,436 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:29:40,437 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2021-10-11 02:29:40,514 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/data/c5684471c/229ac2b008db4cd4a945e14b9fe8f7f5/FLAG9bb486c44 [2021-10-11 02:29:41,315 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:29:41,318 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2021-10-11 02:29:41,331 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/data/c5684471c/229ac2b008db4cd4a945e14b9fe8f7f5/FLAG9bb486c44 [2021-10-11 02:29:41,582 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/data/c5684471c/229ac2b008db4cd4a945e14b9fe8f7f5 [2021-10-11 02:29:41,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:29:41,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:29:41,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:41,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:29:41,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:29:41,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:41" (1/1) ... [2021-10-11 02:29:41,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a43eff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:41, skipping insertion in model container [2021-10-11 02:29:41,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:41" (1/1) ... [2021-10-11 02:29:41,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:29:41,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:29:42,119 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c[18698,18711] [2021-10-11 02:29:42,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:42,152 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:29:42,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:29:42,250 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c[18698,18711] [2021-10-11 02:29:42,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:42,261 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:29:42,409 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c[18698,18711] [2021-10-11 02:29:42,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:42,482 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:29:42,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:42 WrapperNode [2021-10-11 02:29:42,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:42,485 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:42,485 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:29:42,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:29:42,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:42" (1/1) ... [2021-10-11 02:29:42,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:42" (1/1) ... [2021-10-11 02:29:42,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:42,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:29:42,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:29:42,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:29:42,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:42" (1/1) ... [2021-10-11 02:29:42,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:42" (1/1) ... [2021-10-11 02:29:42,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:42" (1/1) ... [2021-10-11 02:29:42,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:42" (1/1) ... [2021-10-11 02:29:42,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:42" (1/1) ... [2021-10-11 02:29:42,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:42" (1/1) ... [2021-10-11 02:29:42,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:42" (1/1) ... [2021-10-11 02:29:42,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:29:42,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:29:42,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:29:42,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:29:42,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:42" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:29:42,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:29:42,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:29:42,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:29:42,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:29:46,388 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:29:46,389 INFO L299 CfgBuilder]: Removed 360 assume(true) statements. [2021-10-11 02:29:46,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:46 BoogieIcfgContainer [2021-10-11 02:29:46,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:29:46,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:29:46,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:29:46,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:29:46,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:29:41" (1/3) ... [2021-10-11 02:29:46,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb93016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:46, skipping insertion in model container [2021-10-11 02:29:46,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:42" (2/3) ... [2021-10-11 02:29:46,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb93016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:46, skipping insertion in model container [2021-10-11 02:29:46,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:46" (3/3) ... [2021-10-11 02:29:46,405 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2021-10-11 02:29:46,420 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:29:46,424 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 02:29:46,436 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 02:29:46,481 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:29:46,483 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:29:46,483 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:29:46,483 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:29:46,484 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:29:46,484 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:29:46,484 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:29:46,484 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:29:46,504 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states. [2021-10-11 02:29:46,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 02:29:46,512 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:46,512 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:46,513 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:46,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:46,519 INFO L82 PathProgramCache]: Analyzing trace with hash 798211303, now seen corresponding path program 1 times [2021-10-11 02:29:46,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:46,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [805135386] [2021-10-11 02:29:46,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:29:46,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:46,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:29:46,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:46,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:46,862 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:46,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [805135386] [2021-10-11 02:29:46,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:46,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:29:46,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264105174] [2021-10-11 02:29:46,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:29:46,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:46,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:29:46,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:29:46,896 INFO L87 Difference]: Start difference. First operand 233 states. Second operand 2 states. [2021-10-11 02:29:46,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:46,990 INFO L93 Difference]: Finished difference Result 460 states and 689 transitions. [2021-10-11 02:29:46,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:29:46,997 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2021-10-11 02:29:46,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:47,018 INFO L225 Difference]: With dead ends: 460 [2021-10-11 02:29:47,018 INFO L226 Difference]: Without dead ends: 229 [2021-10-11 02:29:47,023 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:29:47,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-10-11 02:29:47,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2021-10-11 02:29:47,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2021-10-11 02:29:47,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 336 transitions. [2021-10-11 02:29:47,111 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 336 transitions. Word has length 18 [2021-10-11 02:29:47,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:47,111 INFO L481 AbstractCegarLoop]: Abstraction has 229 states and 336 transitions. [2021-10-11 02:29:47,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:29:47,112 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 336 transitions. [2021-10-11 02:29:47,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 02:29:47,113 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:47,113 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:47,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:29:47,323 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:47,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:47,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1952869156, now seen corresponding path program 1 times [2021-10-11 02:29:47,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:47,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1286571715] [2021-10-11 02:29:47,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:29:47,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:47,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:29:47,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:47,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:47,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:47,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1286571715] [2021-10-11 02:29:47,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:47,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:29:47,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505371481] [2021-10-11 02:29:47,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:29:47,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:47,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:29:47,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:47,619 INFO L87 Difference]: Start difference. First operand 229 states and 336 transitions. Second operand 3 states. [2021-10-11 02:29:47,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:47,639 INFO L93 Difference]: Finished difference Result 229 states and 336 transitions. [2021-10-11 02:29:47,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:29:47,639 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2021-10-11 02:29:47,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:47,641 INFO L225 Difference]: With dead ends: 229 [2021-10-11 02:29:47,641 INFO L226 Difference]: Without dead ends: 87 [2021-10-11 02:29:47,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:47,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-10-11 02:29:47,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-10-11 02:29:47,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2021-10-11 02:29:47,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 127 transitions. [2021-10-11 02:29:47,653 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 127 transitions. Word has length 19 [2021-10-11 02:29:47,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:47,653 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 127 transitions. [2021-10-11 02:29:47,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:29:47,654 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 127 transitions. [2021-10-11 02:29:47,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 02:29:47,655 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:47,655 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] [2021-10-11 02:29:47,869 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:29:47,871 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:47,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:47,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1012740860, now seen corresponding path program 1 times [2021-10-11 02:29:47,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:47,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1069473246] [2021-10-11 02:29:47,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:29:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:48,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:29:48,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:48,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:48,147 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:48,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1069473246] [2021-10-11 02:29:48,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:48,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:29:48,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451858964] [2021-10-11 02:29:48,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:29:48,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:48,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:29:48,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:48,163 INFO L87 Difference]: Start difference. First operand 87 states and 127 transitions. Second operand 3 states. [2021-10-11 02:29:48,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:48,241 INFO L93 Difference]: Finished difference Result 249 states and 369 transitions. [2021-10-11 02:29:48,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:29:48,242 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-10-11 02:29:48,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:48,245 INFO L225 Difference]: With dead ends: 249 [2021-10-11 02:29:48,245 INFO L226 Difference]: Without dead ends: 168 [2021-10-11 02:29:48,248 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:48,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-10-11 02:29:48,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 164. [2021-10-11 02:29:48,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2021-10-11 02:29:48,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 243 transitions. [2021-10-11 02:29:48,290 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 243 transitions. Word has length 24 [2021-10-11 02:29:48,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:48,290 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 243 transitions. [2021-10-11 02:29:48,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:29:48,290 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 243 transitions. [2021-10-11 02:29:48,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-11 02:29:48,298 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:48,298 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] [2021-10-11 02:29:48,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:29:48,513 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:48,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:48,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1198598115, now seen corresponding path program 1 times [2021-10-11 02:29:48,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:48,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [825387568] [2021-10-11 02:29:48,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:29:48,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:48,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:29:48,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:48,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:48,789 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:48,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [825387568] [2021-10-11 02:29:48,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:48,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:29:48,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002375222] [2021-10-11 02:29:48,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:29:48,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:48,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:29:48,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:48,792 INFO L87 Difference]: Start difference. First operand 164 states and 243 transitions. Second operand 3 states. [2021-10-11 02:29:48,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:48,899 INFO L93 Difference]: Finished difference Result 337 states and 504 transitions. [2021-10-11 02:29:48,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:29:48,900 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2021-10-11 02:29:48,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:48,902 INFO L225 Difference]: With dead ends: 337 [2021-10-11 02:29:48,902 INFO L226 Difference]: Without dead ends: 179 [2021-10-11 02:29:48,903 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:48,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2021-10-11 02:29:48,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 177. [2021-10-11 02:29:48,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2021-10-11 02:29:48,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 255 transitions. [2021-10-11 02:29:48,920 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 255 transitions. Word has length 27 [2021-10-11 02:29:48,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:48,921 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 255 transitions. [2021-10-11 02:29:48,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:29:48,921 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 255 transitions. [2021-10-11 02:29:48,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-11 02:29:48,922 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:48,922 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] [2021-10-11 02:29:49,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:29:49,145 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:49,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:49,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1576081447, now seen corresponding path program 1 times [2021-10-11 02:29:49,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:49,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1544477392] [2021-10-11 02:29:49,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:29:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:49,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:29:49,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:49,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:49,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:49,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1544477392] [2021-10-11 02:29:49,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:49,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:29:49,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562350120] [2021-10-11 02:29:49,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:29:49,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:49,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:29:49,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:49,424 INFO L87 Difference]: Start difference. First operand 177 states and 255 transitions. Second operand 5 states. [2021-10-11 02:29:49,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:49,646 INFO L93 Difference]: Finished difference Result 899 states and 1311 transitions. [2021-10-11 02:29:49,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:29:49,647 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2021-10-11 02:29:49,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:49,653 INFO L225 Difference]: With dead ends: 899 [2021-10-11 02:29:49,653 INFO L226 Difference]: Without dead ends: 728 [2021-10-11 02:29:49,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:29:49,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2021-10-11 02:29:49,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 276. [2021-10-11 02:29:49,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2021-10-11 02:29:49,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 388 transitions. [2021-10-11 02:29:49,699 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 388 transitions. Word has length 27 [2021-10-11 02:29:49,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:49,699 INFO L481 AbstractCegarLoop]: Abstraction has 276 states and 388 transitions. [2021-10-11 02:29:49,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:29:49,700 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 388 transitions. [2021-10-11 02:29:49,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-11 02:29:49,703 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:49,703 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] [2021-10-11 02:29:49,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:29:49,918 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:49,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:49,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1018622107, now seen corresponding path program 1 times [2021-10-11 02:29:49,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:49,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1196441496] [2021-10-11 02:29:49,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:29:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:29:51,241 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:29:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:29:52,699 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:29:52,867 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:29:52,867 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:29:53,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:29:53,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:29:53 BoogieIcfgContainer [2021-10-11 02:29:53,239 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:29:53,240 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:29:53,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:29:53,240 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:29:53,241 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:46" (3/4) ... [2021-10-11 02:29:53,243 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:29:53,373 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5c3b4-d430-48fc-b11b-e1b80630e8f0/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:29:53,374 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:29:53,376 INFO L168 Benchmark]: Toolchain (without parser) took 11788.10 ms. Allocated memory was 52.4 MB in the beginning and 113.2 MB in the end (delta: 60.8 MB). Free memory was 28.4 MB in the beginning and 40.5 MB in the end (delta: -12.2 MB). Peak memory consumption was 51.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:53,376 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 52.4 MB. Free memory was 34.4 MB in the beginning and 34.3 MB in the end (delta: 63.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:53,378 INFO L168 Benchmark]: CACSL2BoogieTranslator took 894.91 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 28.2 MB in the beginning and 43.5 MB in the end (delta: -15.3 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:53,378 INFO L168 Benchmark]: Boogie Procedure Inliner took 138.57 ms. Allocated memory is still 69.2 MB. Free memory was 43.5 MB in the beginning and 37.9 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:53,379 INFO L168 Benchmark]: Boogie Preprocessor took 162.93 ms. Allocated memory is still 69.2 MB. Free memory was 37.9 MB in the beginning and 49.6 MB in the end (delta: -11.8 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:53,380 INFO L168 Benchmark]: RCFGBuilder took 3591.61 ms. Allocated memory was 69.2 MB in the beginning and 94.4 MB in the end (delta: 25.2 MB). Free memory was 49.6 MB in the beginning and 52.3 MB in the end (delta: -2.7 MB). Peak memory consumption was 30.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:53,381 INFO L168 Benchmark]: TraceAbstraction took 6842.80 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 51.8 MB in the beginning and 52.1 MB in the end (delta: -297.9 kB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:53,381 INFO L168 Benchmark]: Witness Printer took 133.80 ms. Allocated memory is still 113.2 MB. Free memory was 52.1 MB in the beginning and 40.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:53,384 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 52.4 MB. Free memory was 34.4 MB in the beginning and 34.3 MB in the end (delta: 63.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 894.91 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 28.2 MB in the beginning and 43.5 MB in the end (delta: -15.3 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 138.57 ms. Allocated memory is still 69.2 MB. Free memory was 43.5 MB in the beginning and 37.9 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 162.93 ms. Allocated memory is still 69.2 MB. Free memory was 37.9 MB in the beginning and 49.6 MB in the end (delta: -11.8 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3591.61 ms. Allocated memory was 69.2 MB in the beginning and 94.4 MB in the end (delta: 25.2 MB). Free memory was 49.6 MB in the beginning and 52.3 MB in the end (delta: -2.7 MB). Peak memory consumption was 30.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6842.80 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 51.8 MB in the beginning and 52.1 MB in the end (delta: -297.9 kB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. * Witness Printer took 133.80 ms. Allocated memory is still 113.2 MB. Free memory was 52.1 MB in the beginning and 40.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 998]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L92] int pumpRunning = 0; [L93] int systemActive = 1; [L429] int waterLevel = 1; [L430] int methaneLevelCritical = 0; [L701] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L898] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L971] int retValue_acc ; [L972] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L978] tmp = valid_product() [L980] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L360] int splverifierCounter ; [L361] int tmp ; [L362] int tmp___0 ; [L363] int tmp___1 ; [L364] int tmp___2 ; [L367] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L369] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L371] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L377] tmp = __VERIFIER_nondet_int() [L379] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L447] COND TRUE waterLevel < 2 [L448] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L387] tmp___0 = __VERIFIER_nondet_int() [L389] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L397] tmp___2 = __VERIFIER_nondet_int() [L399] COND FALSE !(\read(tmp___2)) [L405] tmp___1 = __VERIFIER_nondet_int() [L407] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L336] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L343] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L100] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L107] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1004] int tmp ; [L1005] int tmp___0 ; [L1006] int tmp___1 ; [L468] int retValue_acc ; [L471] retValue_acc = methaneLevelCritical [L472] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1010] tmp = isMethaneLevelCritical() [L1012] COND FALSE !(\read(tmp)) [L500] int retValue_acc ; [L503] retValue_acc = waterLevel [L504] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1016] tmp___0 = getWaterLevel() [L1018] COND TRUE tmp___0 == 2 [L250] int retValue_acc ; [L253] retValue_acc = pumpRunning [L254] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1020] tmp___1 = isPumpRunning() [L1022] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L998] 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, 233 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 869 SDtfs, 707 SDslu, 598 SDs, 0 SdLazy, 73 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=276occurred 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, 458 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 5246 SizeOfPredicates, 4 NumberOfNonLiveVariables, 998 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...