./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product44.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_02adb4e1-e5be-435c-a698-bc2fe0d32405/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/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_02adb4e1-e5be-435c-a698-bc2fe0d32405/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/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_02adb4e1-e5be-435c-a698-bc2fe0d32405/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 d4eb13f545cea9ac583f40da9d0bc0269dc50786 ............................................................................................................................................ 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_02adb4e1-e5be-435c-a698-bc2fe0d32405/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/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_02adb4e1-e5be-435c-a698-bc2fe0d32405/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/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_02adb4e1-e5be-435c-a698-bc2fe0d32405/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 d4eb13f545cea9ac583f40da9d0bc0269dc50786 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 02:23:34,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:23:34,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:23:34,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:23:34,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:23:34,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:23:34,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:23:34,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:23:34,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:23:34,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:23:34,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:23:34,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:23:34,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:23:34,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:23:34,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:23:34,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:23:34,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:23:34,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:23:34,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:23:34,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:23:34,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:23:34,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:23:34,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:23:34,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:23:34,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:23:34,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:23:34,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:23:34,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:23:34,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:23:34,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:23:34,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:23:34,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:23:34,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:23:34,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:23:34,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:23:34,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:23:34,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:23:34,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:23:34,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:23:34,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:23:34,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:23:34,988 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:23:35,013 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:23:35,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:23:35,014 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:23:35,014 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:23:35,015 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:23:35,015 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:23:35,015 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:23:35,015 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:23:35,015 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:23:35,016 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:23:35,016 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:23:35,016 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:23:35,016 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:23:35,017 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:23:35,017 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:23:35,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:23:35,018 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:23:35,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:23:35,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:23:35,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:23:35,019 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:23:35,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:23:35,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:23:35,019 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:23:35,019 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:23:35,020 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:23:35,020 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:23:35,020 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:23:35,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:23:35,021 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:23:35,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:23:35,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:23:35,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:23:35,022 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:23:35,022 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:23:35,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:23:35,022 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:23:35,022 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:23:35,023 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:23:35,023 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_02adb4e1-e5be-435c-a698-bc2fe0d32405/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4eb13f545cea9ac583f40da9d0bc0269dc50786 [2021-10-11 02:23:35,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:23:35,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:23:35,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:23:35,340 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:23:35,344 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:23:35,345 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2021-10-11 02:23:35,405 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/bin/utaipan-WLngWcDbfI/data/be692968a/12fa882324ea42608170c97ce273285d/FLAG88d951ac8 [2021-10-11 02:23:35,873 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:23:35,880 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2021-10-11 02:23:35,902 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/bin/utaipan-WLngWcDbfI/data/be692968a/12fa882324ea42608170c97ce273285d/FLAG88d951ac8 [2021-10-11 02:23:36,224 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/bin/utaipan-WLngWcDbfI/data/be692968a/12fa882324ea42608170c97ce273285d [2021-10-11 02:23:36,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:23:36,228 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:23:36,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:23:36,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:23:36,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:23:36,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:23:36" (1/1) ... [2021-10-11 02:23:36,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e1b5150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:36, skipping insertion in model container [2021-10-11 02:23:36,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:23:36" (1/1) ... [2021-10-11 02:23:36,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:23:36,296 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:23:36,471 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_02adb4e1-e5be-435c-a698-bc2fe0d32405/sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c[1281,1294] [2021-10-11 02:23:36,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:23:36,620 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 02:23:36,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@35d9603c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:36, skipping insertion in model container [2021-10-11 02:23:36,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:23:36,633 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:23:36,636 INFO L168 Benchmark]: Toolchain (without parser) took 405.93 ms. Allocated memory was 90.2 MB in the beginning and 130.0 MB in the end (delta: 39.8 MB). Free memory was 51.0 MB in the beginning and 99.6 MB in the end (delta: -48.6 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:36,638 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 90.2 MB. Free memory was 68.5 MB in the beginning and 68.4 MB in the end (delta: 40.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:23:36,640 INFO L168 Benchmark]: CACSL2BoogieTranslator took 403.15 ms. Allocated memory was 90.2 MB in the beginning and 130.0 MB in the end (delta: 39.8 MB). Free memory was 50.8 MB in the beginning and 99.6 MB in the end (delta: -48.8 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:36,643 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 90.2 MB. Free memory was 68.5 MB in the beginning and 68.4 MB in the end (delta: 40.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 403.15 ms. Allocated memory was 90.2 MB in the beginning and 130.0 MB in the end (delta: 39.8 MB). Free memory was 50.8 MB in the beginning and 99.6 MB in the end (delta: -48.8 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 79]: 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 02:23:38,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:23:38,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:23:39,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:23:39,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:23:39,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:23:39,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:23:39,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:23:39,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:23:39,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:23:39,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:23:39,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:23:39,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:23:39,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:23:39,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:23:39,092 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:23:39,093 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:23:39,094 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:23:39,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:23:39,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:23:39,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:23:39,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:23:39,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:23:39,123 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:23:39,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:23:39,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:23:39,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:23:39,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:23:39,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:23:39,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:23:39,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:23:39,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:23:39,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:23:39,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:23:39,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:23:39,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:23:39,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:23:39,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:23:39,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:23:39,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:23:39,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:23:39,145 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:23:39,176 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:23:39,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:23:39,178 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:23:39,178 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:23:39,178 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:23:39,178 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:23:39,179 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:23:39,179 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:23:39,179 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:23:39,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:23:39,180 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:23:39,180 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:23:39,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:23:39,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:23:39,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:23:39,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:23:39,182 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:23:39,182 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:23:39,182 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:23:39,182 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:23:39,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:23:39,183 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:23:39,183 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:23:39,183 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:23:39,183 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:23:39,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:23:39,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:23:39,184 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:23:39,184 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:23:39,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:23:39,185 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:23:39,185 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:23:39,185 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:23:39,185 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:23:39,186 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:23:39,186 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_02adb4e1-e5be-435c-a698-bc2fe0d32405/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4eb13f545cea9ac583f40da9d0bc0269dc50786 [2021-10-11 02:23:39,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:23:39,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:23:39,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:23:39,644 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:23:39,647 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:23:39,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2021-10-11 02:23:39,722 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/bin/utaipan-WLngWcDbfI/data/4056ee28c/2a2c5961842a487fac87ba6b8035251d/FLAGd431a73ea [2021-10-11 02:23:40,374 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:23:40,375 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2021-10-11 02:23:40,391 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/bin/utaipan-WLngWcDbfI/data/4056ee28c/2a2c5961842a487fac87ba6b8035251d/FLAGd431a73ea [2021-10-11 02:23:40,642 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/bin/utaipan-WLngWcDbfI/data/4056ee28c/2a2c5961842a487fac87ba6b8035251d [2021-10-11 02:23:40,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:23:40,646 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:23:40,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:23:40,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:23:40,652 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:23:40,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:23:40" (1/1) ... [2021-10-11 02:23:40,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f69ae44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:40, skipping insertion in model container [2021-10-11 02:23:40,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:23:40" (1/1) ... [2021-10-11 02:23:40,671 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:23:40,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:23:40,955 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_02adb4e1-e5be-435c-a698-bc2fe0d32405/sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c[1281,1294] [2021-10-11 02:23:41,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:23:41,245 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:23:41,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:23:41,258 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_02adb4e1-e5be-435c-a698-bc2fe0d32405/sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c[1281,1294] [2021-10-11 02:23:41,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:23:41,369 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:23:41,384 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_02adb4e1-e5be-435c-a698-bc2fe0d32405/sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c[1281,1294] [2021-10-11 02:23:41,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:23:41,495 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:23:41,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:41 WrapperNode [2021-10-11 02:23:41,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:23:41,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:23:41,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:23:41,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:23:41,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:41" (1/1) ... [2021-10-11 02:23:41,524 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:41" (1/1) ... [2021-10-11 02:23:41,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:23:41,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:23:41,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:23:41,582 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:23:41,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:41" (1/1) ... [2021-10-11 02:23:41,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:41" (1/1) ... [2021-10-11 02:23:41,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:41" (1/1) ... [2021-10-11 02:23:41,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:41" (1/1) ... [2021-10-11 02:23:41,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:41" (1/1) ... [2021-10-11 02:23:41,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:41" (1/1) ... [2021-10-11 02:23:41,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:41" (1/1) ... [2021-10-11 02:23:41,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:23:41,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:23:41,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:23:41,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:23:41,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:41" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/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 02:23:41,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:23:41,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:23:41,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:23:41,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:23:44,044 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:23:44,045 INFO L299 CfgBuilder]: Removed 120 assume(true) statements. [2021-10-11 02:23:44,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:23:44 BoogieIcfgContainer [2021-10-11 02:23:44,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:23:44,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:23:44,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:23:44,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:23:44,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:23:40" (1/3) ... [2021-10-11 02:23:44,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e71aba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:23:44, skipping insertion in model container [2021-10-11 02:23:44,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:41" (2/3) ... [2021-10-11 02:23:44,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e71aba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:23:44, skipping insertion in model container [2021-10-11 02:23:44,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:23:44" (3/3) ... [2021-10-11 02:23:44,055 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product44.cil.c [2021-10-11 02:23:44,069 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:23:44,072 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 02:23:44,083 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 02:23:44,106 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:23:44,106 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:23:44,106 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:23:44,106 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:23:44,106 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:23:44,107 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:23:44,107 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:23:44,107 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:23:44,121 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2021-10-11 02:23:44,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:23:44,127 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:44,128 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:44,128 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:23:44,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:44,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1782116946, now seen corresponding path program 1 times [2021-10-11 02:23:44,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:23:44,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [459362919] [2021-10-11 02:23:44,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/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 02:23:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:44,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:23:44,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:23:44,446 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 02:23:44,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:23:44,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [459362919] [2021-10-11 02:23:44,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:44,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:23:44,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563904634] [2021-10-11 02:23:44,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:23:44,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:23:44,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:23:44,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:23:44,472 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2021-10-11 02:23:44,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:44,524 INFO L93 Difference]: Finished difference Result 172 states and 257 transitions. [2021-10-11 02:23:44,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:23:44,526 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-10-11 02:23:44,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:44,537 INFO L225 Difference]: With dead ends: 172 [2021-10-11 02:23:44,538 INFO L226 Difference]: Without dead ends: 85 [2021-10-11 02:23:44,541 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 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 02:23:44,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-10-11 02:23:44,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-10-11 02:23:44,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2021-10-11 02:23:44,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 120 transitions. [2021-10-11 02:23:44,594 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 120 transitions. Word has length 16 [2021-10-11 02:23:44,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:44,594 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 120 transitions. [2021-10-11 02:23:44,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:23:44,595 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2021-10-11 02:23:44,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:23:44,596 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:44,596 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:44,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:23:44,818 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:23:44,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:44,819 INFO L82 PathProgramCache]: Analyzing trace with hash 735360049, now seen corresponding path program 1 times [2021-10-11 02:23:44,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:23:44,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [108580293] [2021-10-11 02:23:44,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/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 02:23:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:45,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:23:45,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:23:45,074 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 02:23:45,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:23:45,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [108580293] [2021-10-11 02:23:45,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:45,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:23:45,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181824888] [2021-10-11 02:23:45,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:23:45,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:23:45,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:23:45,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:23:45,078 INFO L87 Difference]: Start difference. First operand 85 states and 120 transitions. Second operand 3 states. [2021-10-11 02:23:45,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:45,088 INFO L93 Difference]: Finished difference Result 85 states and 120 transitions. [2021-10-11 02:23:45,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:23:45,088 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 02:23:45,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:45,089 INFO L225 Difference]: With dead ends: 85 [2021-10-11 02:23:45,090 INFO L226 Difference]: Without dead ends: 39 [2021-10-11 02:23:45,091 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 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 02:23:45,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-11 02:23:45,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-10-11 02:23:45,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2021-10-11 02:23:45,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2021-10-11 02:23:45,096 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 17 [2021-10-11 02:23:45,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:45,097 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2021-10-11 02:23:45,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:23:45,097 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2021-10-11 02:23:45,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:23:45,098 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:45,098 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] [2021-10-11 02:23:45,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:23:45,314 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:23:45,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:45,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1297648259, now seen corresponding path program 1 times [2021-10-11 02:23:45,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:23:45,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [882005782] [2021-10-11 02:23:45,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/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 02:23:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:45,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:23:45,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:23:45,528 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 02:23:45,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:23:45,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [882005782] [2021-10-11 02:23:45,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:45,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:23:45,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037413584] [2021-10-11 02:23:45,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:23:45,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:23:45,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:23:45,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:23:45,532 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 3 states. [2021-10-11 02:23:45,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:45,574 INFO L93 Difference]: Finished difference Result 105 states and 153 transitions. [2021-10-11 02:23:45,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:23:45,575 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-10-11 02:23:45,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:45,577 INFO L225 Difference]: With dead ends: 105 [2021-10-11 02:23:45,577 INFO L226 Difference]: Without dead ends: 72 [2021-10-11 02:23:45,578 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 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 02:23:45,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-10-11 02:23:45,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2021-10-11 02:23:45,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2021-10-11 02:23:45,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2021-10-11 02:23:45,589 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 22 [2021-10-11 02:23:45,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:45,590 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2021-10-11 02:23:45,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:23:45,590 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2021-10-11 02:23:45,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-11 02:23:45,591 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:45,591 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] [2021-10-11 02:23:45,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:23:45,810 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:23:45,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:45,810 INFO L82 PathProgramCache]: Analyzing trace with hash -372126526, now seen corresponding path program 1 times [2021-10-11 02:23:45,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:23:45,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2135664340] [2021-10-11 02:23:45,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/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 02:23:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:45,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:23:45,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:23:46,039 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 02:23:46,039 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:23:46,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2135664340] [2021-10-11 02:23:46,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:46,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:23:46,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75289158] [2021-10-11 02:23:46,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:23:46,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:23:46,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:23:46,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:23:46,044 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand 3 states. [2021-10-11 02:23:46,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:46,117 INFO L93 Difference]: Finished difference Result 171 states and 254 transitions. [2021-10-11 02:23:46,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:23:46,118 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2021-10-11 02:23:46,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:46,123 INFO L225 Difference]: With dead ends: 171 [2021-10-11 02:23:46,123 INFO L226 Difference]: Without dead ends: 109 [2021-10-11 02:23:46,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 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 02:23:46,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-10-11 02:23:46,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 107. [2021-10-11 02:23:46,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2021-10-11 02:23:46,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 155 transitions. [2021-10-11 02:23:46,152 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 155 transitions. Word has length 23 [2021-10-11 02:23:46,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:46,154 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 155 transitions. [2021-10-11 02:23:46,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:23:46,154 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 155 transitions. [2021-10-11 02:23:46,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 02:23:46,156 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:46,156 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] [2021-10-11 02:23:46,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:23:46,376 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:23:46,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:46,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1852423790, now seen corresponding path program 1 times [2021-10-11 02:23:46,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:23:46,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185403369] [2021-10-11 02:23:46,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/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 02:23:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:46,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:23:46,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:23:46,621 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 02:23:46,621 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:23:46,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185403369] [2021-10-11 02:23:46,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:46,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:23:46,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813546866] [2021-10-11 02:23:46,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:23:46,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:23:46,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:23:46,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:23:46,624 INFO L87 Difference]: Start difference. First operand 107 states and 155 transitions. Second operand 5 states. [2021-10-11 02:23:46,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:46,776 INFO L93 Difference]: Finished difference Result 535 states and 792 transitions. [2021-10-11 02:23:46,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 02:23:46,776 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2021-10-11 02:23:46,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:46,780 INFO L225 Difference]: With dead ends: 535 [2021-10-11 02:23:46,780 INFO L226 Difference]: Without dead ends: 434 [2021-10-11 02:23:46,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:23:46,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2021-10-11 02:23:46,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 198. [2021-10-11 02:23:46,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2021-10-11 02:23:46,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 283 transitions. [2021-10-11 02:23:46,813 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 283 transitions. Word has length 25 [2021-10-11 02:23:46,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:46,814 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 283 transitions. [2021-10-11 02:23:46,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:23:46,814 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 283 transitions. [2021-10-11 02:23:46,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 02:23:46,816 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:46,816 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] [2021-10-11 02:23:47,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:23:47,030 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:23:47,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:47,031 INFO L82 PathProgramCache]: Analyzing trace with hash -2056230884, now seen corresponding path program 1 times [2021-10-11 02:23:47,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:23:47,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [196135351] [2021-10-11 02:23:47,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/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 02:23:47,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:47,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:23:47,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:23:47,311 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 02:23:47,312 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:23:47,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [196135351] [2021-10-11 02:23:47,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:47,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:23:47,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848919933] [2021-10-11 02:23:47,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:23:47,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:23:47,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:23:47,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:23:47,315 INFO L87 Difference]: Start difference. First operand 198 states and 283 transitions. Second operand 5 states. [2021-10-11 02:23:47,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:47,533 INFO L93 Difference]: Finished difference Result 572 states and 822 transitions. [2021-10-11 02:23:47,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:23:47,534 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2021-10-11 02:23:47,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:47,537 INFO L225 Difference]: With dead ends: 572 [2021-10-11 02:23:47,538 INFO L226 Difference]: Without dead ends: 570 [2021-10-11 02:23:47,538 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:23:47,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2021-10-11 02:23:47,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 198. [2021-10-11 02:23:47,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2021-10-11 02:23:47,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 281 transitions. [2021-10-11 02:23:47,568 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 281 transitions. Word has length 26 [2021-10-11 02:23:47,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:47,569 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 281 transitions. [2021-10-11 02:23:47,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:23:47,569 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 281 transitions. [2021-10-11 02:23:47,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-11 02:23:47,571 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:47,571 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, 1, 1, 1, 1, 1] [2021-10-11 02:23:47,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:23:47,784 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:23:47,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:47,785 INFO L82 PathProgramCache]: Analyzing trace with hash 437867349, now seen corresponding path program 1 times [2021-10-11 02:23:47,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:23:47,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [896638570] [2021-10-11 02:23:47,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2021-10-11 02:23:47,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:47,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:23:47,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:23:48,051 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 02:23:48,051 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:23:48,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [896638570] [2021-10-11 02:23:48,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:48,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:23:48,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945886475] [2021-10-11 02:23:48,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:23:48,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:23:48,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:23:48,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:23:48,054 INFO L87 Difference]: Start difference. First operand 198 states and 281 transitions. Second operand 5 states. [2021-10-11 02:23:48,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:48,165 INFO L93 Difference]: Finished difference Result 550 states and 772 transitions. [2021-10-11 02:23:48,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:23:48,165 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2021-10-11 02:23:48,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:48,168 INFO L225 Difference]: With dead ends: 550 [2021-10-11 02:23:48,168 INFO L226 Difference]: Without dead ends: 358 [2021-10-11 02:23:48,170 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:23:48,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2021-10-11 02:23:48,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 210. [2021-10-11 02:23:48,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2021-10-11 02:23:48,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 293 transitions. [2021-10-11 02:23:48,197 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 293 transitions. Word has length 33 [2021-10-11 02:23:48,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:48,197 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 293 transitions. [2021-10-11 02:23:48,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:23:48,198 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 293 transitions. [2021-10-11 02:23:48,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-11 02:23:48,199 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:48,199 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, 1, 1, 1, 1, 1] [2021-10-11 02:23:48,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2021-10-11 02:23:48,415 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:23:48,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:48,416 INFO L82 PathProgramCache]: Analyzing trace with hash -148938665, now seen corresponding path program 1 times [2021-10-11 02:23:48,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:23:48,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095387914] [2021-10-11 02:23:48,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2021-10-11 02:23:48,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:48,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:23:48,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:23:48,639 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 02:23:48,639 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:23:48,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2095387914] [2021-10-11 02:23:48,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:48,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:23:48,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762828293] [2021-10-11 02:23:48,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:23:48,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:23:48,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:23:48,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:23:48,642 INFO L87 Difference]: Start difference. First operand 210 states and 293 transitions. Second operand 4 states. [2021-10-11 02:23:48,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:48,713 INFO L93 Difference]: Finished difference Result 510 states and 706 transitions. [2021-10-11 02:23:48,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:23:48,715 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2021-10-11 02:23:48,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:48,719 INFO L225 Difference]: With dead ends: 510 [2021-10-11 02:23:48,721 INFO L226 Difference]: Without dead ends: 306 [2021-10-11 02:23:48,722 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:23:48,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-10-11 02:23:48,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 218. [2021-10-11 02:23:48,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2021-10-11 02:23:48,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 301 transitions. [2021-10-11 02:23:48,752 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 301 transitions. Word has length 33 [2021-10-11 02:23:48,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:48,753 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 301 transitions. [2021-10-11 02:23:48,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:23:48,753 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 301 transitions. [2021-10-11 02:23:48,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-11 02:23:48,754 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:48,754 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, 1, 1, 1, 1, 1] [2021-10-11 02:23:48,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2021-10-11 02:23:48,955 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:23:48,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:48,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1428802343, now seen corresponding path program 1 times [2021-10-11 02:23:48,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:23:48,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [981415220] [2021-10-11 02:23:48,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2021-10-11 02:23:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:49,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:23:49,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:23:49,200 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 02:23:49,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:23:49,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [981415220] [2021-10-11 02:23:49,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:49,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:23:49,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250488266] [2021-10-11 02:23:49,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:23:49,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:23:49,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:23:49,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:23:49,202 INFO L87 Difference]: Start difference. First operand 218 states and 301 transitions. Second operand 3 states. [2021-10-11 02:23:49,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:49,267 INFO L93 Difference]: Finished difference Result 530 states and 726 transitions. [2021-10-11 02:23:49,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:23:49,267 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2021-10-11 02:23:49,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:49,270 INFO L225 Difference]: With dead ends: 530 [2021-10-11 02:23:49,270 INFO L226 Difference]: Without dead ends: 318 [2021-10-11 02:23:49,271 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 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 02:23:49,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-10-11 02:23:49,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2021-10-11 02:23:49,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2021-10-11 02:23:49,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 423 transitions. [2021-10-11 02:23:49,311 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 423 transitions. Word has length 33 [2021-10-11 02:23:49,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:49,312 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 423 transitions. [2021-10-11 02:23:49,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:23:49,312 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 423 transitions. [2021-10-11 02:23:49,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-11 02:23:49,313 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:49,314 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, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:49,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2021-10-11 02:23:49,530 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:23:49,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:49,530 INFO L82 PathProgramCache]: Analyzing trace with hash -271506405, now seen corresponding path program 1 times [2021-10-11 02:23:49,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:23:49,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1270001464] [2021-10-11 02:23:49,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2021-10-11 02:23:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:49,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:23:49,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:23:49,792 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 02:23:49,793 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:23:49,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1270001464] [2021-10-11 02:23:49,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:49,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:23:49,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066287676] [2021-10-11 02:23:49,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:23:49,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:23:49,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:23:49,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:23:49,795 INFO L87 Difference]: Start difference. First operand 318 states and 423 transitions. Second operand 6 states. [2021-10-11 02:23:51,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:51,362 INFO L93 Difference]: Finished difference Result 992 states and 1318 transitions. [2021-10-11 02:23:51,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-11 02:23:51,362 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2021-10-11 02:23:51,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:51,366 INFO L225 Difference]: With dead ends: 992 [2021-10-11 02:23:51,366 INFO L226 Difference]: Without dead ends: 680 [2021-10-11 02:23:51,367 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-10-11 02:23:51,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2021-10-11 02:23:51,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 318. [2021-10-11 02:23:51,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2021-10-11 02:23:51,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 415 transitions. [2021-10-11 02:23:51,435 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 415 transitions. Word has length 34 [2021-10-11 02:23:51,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:51,437 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 415 transitions. [2021-10-11 02:23:51,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:23:51,438 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 415 transitions. [2021-10-11 02:23:51,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-11 02:23:51,439 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:51,439 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2021-10-11 02:23:51,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2021-10-11 02:23:51,653 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:23:51,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:51,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1907454321, now seen corresponding path program 1 times [2021-10-11 02:23:51,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:23:51,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [397534468] [2021-10-11 02:23:51,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2021-10-11 02:23:52,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:23:52,690 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:23:53,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:23:53,553 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:23:53,761 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:23:53,762 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:23:53,997 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2021-10-11 02:23:54,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:23:54 BoogieIcfgContainer [2021-10-11 02:23:54,170 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:23:54,170 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:23:54,171 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:23:54,171 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:23:54,171 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:23:44" (3/4) ... [2021-10-11 02:23:54,174 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:23:54,315 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02adb4e1-e5be-435c-a698-bc2fe0d32405/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:23:54,321 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:23:54,324 INFO L168 Benchmark]: Toolchain (without parser) took 13676.99 ms. Allocated memory was 56.6 MB in the beginning and 104.9 MB in the end (delta: 48.2 MB). Free memory was 33.9 MB in the beginning and 52.0 MB in the end (delta: -18.1 MB). Peak memory consumption was 31.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:54,325 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 56.6 MB. Free memory was 38.0 MB in the beginning and 37.9 MB in the end (delta: 44.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:23:54,325 INFO L168 Benchmark]: CACSL2BoogieTranslator took 848.40 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 33.7 MB in the beginning and 49.2 MB in the end (delta: -15.4 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:54,326 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.36 ms. Allocated memory is still 69.2 MB. Free memory was 49.2 MB in the beginning and 45.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:54,326 INFO L168 Benchmark]: Boogie Preprocessor took 77.92 ms. Allocated memory is still 69.2 MB. Free memory was 45.9 MB in the beginning and 43.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:54,326 INFO L168 Benchmark]: RCFGBuilder took 2387.97 ms. Allocated memory is still 69.2 MB. Free memory was 43.5 MB in the beginning and 40.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:54,326 INFO L168 Benchmark]: TraceAbstraction took 10121.71 ms. Allocated memory was 69.2 MB in the beginning and 104.9 MB in the end (delta: 35.7 MB). Free memory was 40.4 MB in the beginning and 70.8 MB in the end (delta: -30.4 MB). Peak memory consumption was 53.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:54,327 INFO L168 Benchmark]: Witness Printer took 151.94 ms. Allocated memory is still 104.9 MB. Free memory was 70.8 MB in the beginning and 52.0 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:54,328 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 56.6 MB. Free memory was 38.0 MB in the beginning and 37.9 MB in the end (delta: 44.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 848.40 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 33.7 MB in the beginning and 49.2 MB in the end (delta: -15.4 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.36 ms. Allocated memory is still 69.2 MB. Free memory was 49.2 MB in the beginning and 45.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.92 ms. Allocated memory is still 69.2 MB. Free memory was 45.9 MB in the beginning and 43.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2387.97 ms. Allocated memory is still 69.2 MB. Free memory was 43.5 MB in the beginning and 40.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10121.71 ms. Allocated memory was 69.2 MB in the beginning and 104.9 MB in the end (delta: 35.7 MB). Free memory was 40.4 MB in the beginning and 70.8 MB in the end (delta: -30.4 MB). Peak memory consumption was 53.7 MB. Max. memory is 16.1 GB. * Witness Printer took 151.94 ms. Allocated memory is still 104.9 MB. Free memory was 70.8 MB in the beginning and 52.0 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 46]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L220] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L500] int pumpRunning = 0; [L501] int systemActive = 1; [L695] int waterLevel = 1; [L696] int methaneLevelCritical = 0; [L853] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L926] int retValue_acc ; [L927] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L844] int retValue_acc ; [L847] retValue_acc = 1 [L848] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L933] tmp = valid_product() [L935] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L424] int splverifierCounter ; [L425] int tmp ; [L426] int tmp___0 ; [L427] int tmp___1 ; [L428] int tmp___2 ; [L431] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L433] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L435] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L441] tmp = __VERIFIER_nondet_int() [L443] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L713] COND TRUE waterLevel < 2 [L714] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L451] tmp___0 = __VERIFIER_nondet_int() [L453] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L461] tmp___2 = __VERIFIER_nondet_int() [L463] COND TRUE \read(tmp___2) [L689] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L508] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L515] COND TRUE \read(systemActive) [L537] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L540] COND TRUE ! pumpRunning [L652] int retValue_acc ; [L653] int tmp ; [L654] int tmp___0 ; [L775] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L778] COND FALSE !(waterLevel < 2) [L782] retValue_acc = 0 [L783] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L658] tmp = isHighWaterSensorDry() [L660] COND FALSE !(\read(tmp)) [L663] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L665] retValue_acc = tmp___0 [L666] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L542] tmp = isHighWaterLevel() [L544] COND TRUE \read(tmp) [L571] int tmp ; [L596] int retValue_acc ; [L734] int retValue_acc ; [L737] retValue_acc = methaneLevelCritical [L738] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L600] retValue_acc = isMethaneLevelCritical() [L602] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L575] tmp = isMethaneAlarm() [L577] COND FALSE !(\read(tmp)) [L565] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L790] int tmp ; [L791] int tmp___0 ; [L734] int retValue_acc ; [L737] retValue_acc = methaneLevelCritical [L738] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L795] tmp = isMethaneLevelCritical() [L797] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L433] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L435] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L441] tmp = __VERIFIER_nondet_int() [L443] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L451] tmp___0 = __VERIFIER_nondet_int() [L453] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L725] COND FALSE !(\read(methaneLevelCritical)) [L728] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L461] tmp___2 = __VERIFIER_nondet_int() [L463] COND TRUE \read(tmp___2) [L689] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L508] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L701] COND TRUE waterLevel > 0 [L702] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L515] COND TRUE \read(systemActive) [L537] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L540] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L790] int tmp ; [L791] int tmp___0 ; [L734] int retValue_acc ; [L737] retValue_acc = methaneLevelCritical [L738] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L795] tmp = isMethaneLevelCritical() [L797] COND TRUE \read(tmp) [L607] int retValue_acc ; [L610] retValue_acc = pumpRunning [L611] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L799] tmp___0 = isPumpRunning() [L801] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L46] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 89 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.8s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 823 SDtfs, 1065 SDslu, 1352 SDs, 0 SdLazy, 173 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 277 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=318occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 1212 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 311 NumberOfCodeBlocks, 311 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 252 ConstructedInterpolants, 0 QuantifiedInterpolants, 13030 SizeOfPredicates, 18 NumberOfNonLiveVariables, 2048 ConjunctsInSsa, 35 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...