./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE --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 7e5f42a5bbc52e8ca75c0ac5e2c6aad044a3ab94096d236f597eae12e8fb5e5c ............................................................................................................................................ 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_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE --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 7e5f42a5bbc52e8ca75c0ac5e2c6aad044a3ab94096d236f597eae12e8fb5e5c ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.1-dev-e943c26 [2021-10-24 11:18:22,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 11:18:22,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 11:18:22,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 11:18:22,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 11:18:22,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 11:18:22,853 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 11:18:22,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 11:18:22,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 11:18:22,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 11:18:22,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 11:18:22,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 11:18:22,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 11:18:22,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 11:18:22,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 11:18:22,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 11:18:22,880 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 11:18:22,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 11:18:22,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 11:18:22,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 11:18:22,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 11:18:22,895 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 11:18:22,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 11:18:22,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 11:18:22,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 11:18:22,912 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 11:18:22,912 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 11:18:22,914 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 11:18:22,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 11:18:22,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 11:18:22,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 11:18:22,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 11:18:22,920 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 11:18:22,921 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 11:18:22,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 11:18:22,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 11:18:22,923 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 11:18:22,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 11:18:22,924 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 11:18:22,925 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 11:18:22,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 11:18:22,927 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 11:18:22,964 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 11:18:22,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 11:18:22,965 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 11:18:22,966 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 11:18:22,966 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 11:18:22,966 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 11:18:22,966 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 11:18:22,967 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 11:18:22,967 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 11:18:22,967 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 11:18:22,968 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 11:18:22,968 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 11:18:22,968 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 11:18:22,968 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 11:18:22,969 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 11:18:22,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 11:18:22,970 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 11:18:22,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 11:18:22,970 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 11:18:22,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 11:18:22,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 11:18:22,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 11:18:22,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 11:18:22,972 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 11:18:22,972 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 11:18:22,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 11:18:22,973 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 11:18:22,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 11:18:22,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 11:18:22,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 11:18:22,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:18:22,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 11:18:22,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 11:18:22,975 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 11:18:22,975 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 11:18:22,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 11:18:22,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 11:18:22,976 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 11:18:22,976 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 11:18:22,976 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_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e5f42a5bbc52e8ca75c0ac5e2c6aad044a3ab94096d236f597eae12e8fb5e5c [2021-10-24 11:18:23,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 11:18:23,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 11:18:23,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 11:18:23,345 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 11:18:23,346 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 11:18:23,347 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2021-10-24 11:18:23,429 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/data/143f5ea7d/26ccd9ff48de4522a4476e4e775cc973/FLAGa68967dd0 [2021-10-24 11:18:24,054 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 11:18:24,058 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2021-10-24 11:18:24,081 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/data/143f5ea7d/26ccd9ff48de4522a4476e4e775cc973/FLAGa68967dd0 [2021-10-24 11:18:24,298 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/data/143f5ea7d/26ccd9ff48de4522a4476e4e775cc973 [2021-10-24 11:18:24,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 11:18:24,304 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 11:18:24,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 11:18:24,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 11:18:24,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 11:18:24,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:18:24" (1/1) ... [2021-10-24 11:18:24,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c1542e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:24, skipping insertion in model container [2021-10-24 11:18:24,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:18:24" (1/1) ... [2021-10-24 11:18:24,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 11:18:24,386 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 11:18:24,647 WARN L228 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_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c[3936,3949] [2021-10-24 11:18:24,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:18:24,806 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) [2021-10-24 11:18:24,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1cf33472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:24, skipping insertion in model container [2021-10-24 11:18:24,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 11:18:24,807 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 11:18:24,810 INFO L168 Benchmark]: Toolchain (without parser) took 504.44 ms. Allocated memory is still 132.1 MB. Free memory was 96.6 MB in the beginning and 104.7 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 11:18:24,811 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 86.0 MB. Free memory was 60.8 MB in the beginning and 60.8 MB in the end (delta: 25.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:18:24,812 INFO L168 Benchmark]: CACSL2BoogieTranslator took 498.82 ms. Allocated memory is still 132.1 MB. Free memory was 96.2 MB in the beginning and 104.7 MB in the end (delta: -8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 11:18:24,814 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 86.0 MB. Free memory was 60.8 MB in the beginning and 60.8 MB in the end (delta: 25.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 498.82 ms. Allocated memory is still 132.1 MB. Free memory was 96.2 MB in the beginning and 104.7 MB in the end (delta: -8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 635]: 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 0.2.1-dev-e943c26 [2021-10-24 11:18:27,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 11:18:27,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 11:18:27,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 11:18:27,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 11:18:27,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 11:18:27,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 11:18:27,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 11:18:27,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 11:18:27,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 11:18:27,334 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 11:18:27,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 11:18:27,337 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 11:18:27,339 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 11:18:27,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 11:18:27,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 11:18:27,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 11:18:27,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 11:18:27,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 11:18:27,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 11:18:27,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 11:18:27,359 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 11:18:27,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 11:18:27,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 11:18:27,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 11:18:27,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 11:18:27,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 11:18:27,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 11:18:27,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 11:18:27,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 11:18:27,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 11:18:27,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 11:18:27,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 11:18:27,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 11:18:27,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 11:18:27,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 11:18:27,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 11:18:27,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 11:18:27,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 11:18:27,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 11:18:27,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 11:18:27,400 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 11:18:27,462 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 11:18:27,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 11:18:27,464 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 11:18:27,464 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 11:18:27,465 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 11:18:27,465 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 11:18:27,465 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 11:18:27,465 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 11:18:27,466 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 11:18:27,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 11:18:27,468 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 11:18:27,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 11:18:27,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 11:18:27,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 11:18:27,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 11:18:27,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 11:18:27,470 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 11:18:27,470 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 11:18:27,470 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 11:18:27,471 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 11:18:27,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 11:18:27,471 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 11:18:27,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 11:18:27,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 11:18:27,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 11:18:27,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 11:18:27,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:18:27,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 11:18:27,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 11:18:27,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 11:18:27,473 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 11:18:27,474 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 11:18:27,474 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 11:18:27,474 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 11:18:27,474 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 11:18:27,475 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_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e5f42a5bbc52e8ca75c0ac5e2c6aad044a3ab94096d236f597eae12e8fb5e5c [2021-10-24 11:18:27,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 11:18:27,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 11:18:27,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 11:18:27,974 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 11:18:27,978 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 11:18:27,981 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2021-10-24 11:18:28,074 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/data/5b5d08945/e58e95a72c3d498999c77493ba95e2ee/FLAG123b35c0b [2021-10-24 11:18:28,831 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 11:18:28,831 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2021-10-24 11:18:28,846 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/data/5b5d08945/e58e95a72c3d498999c77493ba95e2ee/FLAG123b35c0b [2021-10-24 11:18:29,092 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/data/5b5d08945/e58e95a72c3d498999c77493ba95e2ee [2021-10-24 11:18:29,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 11:18:29,097 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 11:18:29,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 11:18:29,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 11:18:29,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 11:18:29,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:18:29" (1/1) ... [2021-10-24 11:18:29,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1761d437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:29, skipping insertion in model container [2021-10-24 11:18:29,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:18:29" (1/1) ... [2021-10-24 11:18:29,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 11:18:29,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 11:18:29,416 WARN L228 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_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c[3936,3949] [2021-10-24 11:18:29,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:18:29,620 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 11:18:29,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 11:18:29,662 WARN L228 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_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c[3936,3949] [2021-10-24 11:18:29,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:18:29,756 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 11:18:29,777 WARN L228 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_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c[3936,3949] [2021-10-24 11:18:29,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:18:29,878 INFO L208 MainTranslator]: Completed translation [2021-10-24 11:18:29,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:29 WrapperNode [2021-10-24 11:18:29,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 11:18:29,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 11:18:29,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 11:18:29,881 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 11:18:29,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:29" (1/1) ... [2021-10-24 11:18:29,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:29" (1/1) ... [2021-10-24 11:18:29,981 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 11:18:29,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 11:18:29,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 11:18:29,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 11:18:29,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:29" (1/1) ... [2021-10-24 11:18:29,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:29" (1/1) ... [2021-10-24 11:18:30,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:29" (1/1) ... [2021-10-24 11:18:30,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:29" (1/1) ... [2021-10-24 11:18:30,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:29" (1/1) ... [2021-10-24 11:18:30,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:29" (1/1) ... [2021-10-24 11:18:30,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:29" (1/1) ... [2021-10-24 11:18:30,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 11:18:30,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 11:18:30,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 11:18:30,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 11:18:30,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:29" (1/1) ... [2021-10-24 11:18:30,117 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:18:30,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:18:30,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 11:18:30,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 11:18:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 11:18:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 11:18:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 11:18:30,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 11:18:32,857 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 11:18:32,858 INFO L299 CfgBuilder]: Removed 168 assume(true) statements. [2021-10-24 11:18:32,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:18:32 BoogieIcfgContainer [2021-10-24 11:18:32,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 11:18:32,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 11:18:32,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 11:18:32,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 11:18:32,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:18:29" (1/3) ... [2021-10-24 11:18:32,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2520e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:18:32, skipping insertion in model container [2021-10-24 11:18:32,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:29" (2/3) ... [2021-10-24 11:18:32,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2520e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:18:32, skipping insertion in model container [2021-10-24 11:18:32,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:18:32" (3/3) ... [2021-10-24 11:18:32,870 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product40.cil.c [2021-10-24 11:18:32,877 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 11:18:32,877 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-24 11:18:32,935 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 11:18:32,943 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 11:18:32,943 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-24 11:18:32,968 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 115 states have (on average 1.565217391304348) internal successors, (180), 118 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:18:32,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-24 11:18:32,986 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:18:32,987 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:18:32,988 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:18:32,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:18:32,995 INFO L82 PathProgramCache]: Analyzing trace with hash 228795593, now seen corresponding path program 1 times [2021-10-24 11:18:33,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:18:33,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2023639511] [2021-10-24 11:18:33,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:18:33,012 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:18:33,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:18:33,016 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:18:33,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 11:18:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:18:33,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 11:18:33,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:18:33,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:33,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:18:33,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:33,501 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:18:33,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2023639511] [2021-10-24 11:18:33,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2023639511] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:18:33,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:18:33,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 11:18:33,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396101507] [2021-10-24 11:18:33,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 11:18:33,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:18:33,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 11:18:33,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 11:18:33,539 INFO L87 Difference]: Start difference. First operand has 119 states, 115 states have (on average 1.565217391304348) internal successors, (180), 118 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:18:33,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:18:33,568 INFO L93 Difference]: Finished difference Result 232 states and 353 transitions. [2021-10-24 11:18:33,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 11:18:33,570 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-24 11:18:33,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:18:33,581 INFO L225 Difference]: With dead ends: 232 [2021-10-24 11:18:33,581 INFO L226 Difference]: Without dead ends: 115 [2021-10-24 11:18:33,585 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 11:18:33,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-10-24 11:18:33,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-10-24 11:18:33,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 112 states have (on average 1.5) internal successors, (168), 114 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:18:33,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2021-10-24 11:18:33,632 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 18 [2021-10-24 11:18:33,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:18:33,632 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2021-10-24 11:18:33,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:18:33,633 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2021-10-24 11:18:33,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 11:18:33,635 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:18:33,635 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:18:33,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 11:18:33,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:18:33,838 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:18:33,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:18:33,839 INFO L82 PathProgramCache]: Analyzing trace with hash 303686568, now seen corresponding path program 1 times [2021-10-24 11:18:33,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:18:33,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1616798118] [2021-10-24 11:18:33,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:18:33,841 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:18:33,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:18:33,843 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:18:33,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 11:18:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:18:34,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 11:18:34,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:18:34,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:34,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:18:34,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:34,269 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:18:34,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1616798118] [2021-10-24 11:18:34,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1616798118] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:18:34,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:18:34,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 11:18:34,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451247330] [2021-10-24 11:18:34,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 11:18:34,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:18:34,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 11:18:34,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 11:18:34,280 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:18:34,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:18:34,317 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2021-10-24 11:18:34,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 11:18:34,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-24 11:18:34,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:18:34,321 INFO L225 Difference]: With dead ends: 115 [2021-10-24 11:18:34,322 INFO L226 Difference]: Without dead ends: 49 [2021-10-24 11:18:34,324 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 11:18:34,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-24 11:18:34,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-10-24 11:18:34,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.4791666666666667) internal successors, (71), 48 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:18:34,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2021-10-24 11:18:34,339 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 19 [2021-10-24 11:18:34,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:18:34,340 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2021-10-24 11:18:34,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:18:34,341 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2021-10-24 11:18:34,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-24 11:18:34,344 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:18:34,344 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:18:34,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 11:18:34,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:18:34,554 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:18:34,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:18:34,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1740217190, now seen corresponding path program 1 times [2021-10-24 11:18:34,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:18:34,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1872774771] [2021-10-24 11:18:34,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:18:34,557 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:18:34,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:18:34,558 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:18:34,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 11:18:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:18:34,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 11:18:34,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:18:34,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:34,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:18:34,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:34,933 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:18:34,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1872774771] [2021-10-24 11:18:34,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1872774771] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:18:34,934 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:18:34,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 11:18:34,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566725781] [2021-10-24 11:18:34,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 11:18:34,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:18:34,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 11:18:34,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 11:18:34,940 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:18:35,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:18:35,013 INFO L93 Difference]: Finished difference Result 160 states and 238 transitions. [2021-10-24 11:18:35,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 11:18:35,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-24 11:18:35,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:18:35,016 INFO L225 Difference]: With dead ends: 160 [2021-10-24 11:18:35,016 INFO L226 Difference]: Without dead ends: 117 [2021-10-24 11:18:35,017 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 11:18:35,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-10-24 11:18:35,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 70. [2021-10-24 11:18:35,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.4927536231884058) internal successors, (103), 69 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:18:35,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 103 transitions. [2021-10-24 11:18:35,041 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 103 transitions. Word has length 24 [2021-10-24 11:18:35,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:18:35,041 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 103 transitions. [2021-10-24 11:18:35,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:18:35,043 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 103 transitions. [2021-10-24 11:18:35,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-24 11:18:35,044 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:18:35,045 INFO L512 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] [2021-10-24 11:18:35,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 11:18:35,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:18:35,263 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:18:35,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:18:35,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1869059729, now seen corresponding path program 1 times [2021-10-24 11:18:35,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:18:35,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442756362] [2021-10-24 11:18:35,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:18:35,266 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:18:35,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:18:35,274 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:18:35,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 11:18:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:18:35,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 11:18:35,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:18:35,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:35,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:18:35,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:35,677 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:18:35,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1442756362] [2021-10-24 11:18:35,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1442756362] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:18:35,678 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:18:35,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 11:18:35,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344044785] [2021-10-24 11:18:35,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 11:18:35,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:18:35,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 11:18:35,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 11:18:35,680 INFO L87 Difference]: Start difference. First operand 70 states and 103 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:18:35,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:18:35,742 INFO L93 Difference]: Finished difference Result 157 states and 233 transitions. [2021-10-24 11:18:35,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 11:18:35,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-24 11:18:35,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:18:35,745 INFO L225 Difference]: With dead ends: 157 [2021-10-24 11:18:35,746 INFO L226 Difference]: Without dead ends: 93 [2021-10-24 11:18:35,747 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 11:18:35,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-24 11:18:35,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2021-10-24 11:18:35,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.4444444444444444) internal successors, (130), 90 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:18:35,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 130 transitions. [2021-10-24 11:18:35,767 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 130 transitions. Word has length 26 [2021-10-24 11:18:35,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:18:35,767 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 130 transitions. [2021-10-24 11:18:35,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:18:35,768 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 130 transitions. [2021-10-24 11:18:35,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-24 11:18:35,773 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:18:35,773 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:18:35,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 11:18:35,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:18:35,986 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:18:35,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:18:35,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1176876603, now seen corresponding path program 1 times [2021-10-24 11:18:35,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:18:35,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209969581] [2021-10-24 11:18:35,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:18:35,988 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:18:35,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:18:35,989 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:18:36,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 11:18:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:18:36,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 11:18:36,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:18:36,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:36,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:18:36,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:36,590 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:18:36,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [209969581] [2021-10-24 11:18:36,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [209969581] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:18:36,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:18:36,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-24 11:18:36,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997329073] [2021-10-24 11:18:36,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 11:18:36,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:18:36,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 11:18:36,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-24 11:18:36,593 INFO L87 Difference]: Start difference. First operand 91 states and 130 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:18:37,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:18:37,130 INFO L93 Difference]: Finished difference Result 986 states and 1451 transitions. [2021-10-24 11:18:37,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-24 11:18:37,131 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-24 11:18:37,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:18:37,138 INFO L225 Difference]: With dead ends: 986 [2021-10-24 11:18:37,138 INFO L226 Difference]: Without dead ends: 901 [2021-10-24 11:18:37,140 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 178.0ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-24 11:18:37,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2021-10-24 11:18:37,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 232. [2021-10-24 11:18:37,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 231 states have (on average 1.4155844155844155) internal successors, (327), 231 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:18:37,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 327 transitions. [2021-10-24 11:18:37,204 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 327 transitions. Word has length 27 [2021-10-24 11:18:37,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:18:37,205 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 327 transitions. [2021-10-24 11:18:37,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:18:37,206 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 327 transitions. [2021-10-24 11:18:37,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-24 11:18:37,207 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:18:37,207 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:18:37,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 11:18:37,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:18:37,431 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:18:37,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:18:37,431 INFO L82 PathProgramCache]: Analyzing trace with hash -523387139, now seen corresponding path program 1 times [2021-10-24 11:18:37,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:18:37,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [121585930] [2021-10-24 11:18:37,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:18:37,433 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:18:37,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:18:37,434 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:18:37,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-24 11:18:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 11:18:38,435 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 11:18:39,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 11:18:39,561 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-24 11:18:39,562 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 11:18:39,563 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 11:18:39,565 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 11:18:39,565 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 11:18:39,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-24 11:18:39,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:18:39,792 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 11:18:39,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:18:39 BoogieIcfgContainer [2021-10-24 11:18:39,961 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 11:18:39,962 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 11:18:39,962 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 11:18:39,963 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 11:18:39,964 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:18:32" (3/4) ... [2021-10-24 11:18:39,966 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-24 11:18:40,088 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 11:18:40,088 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 11:18:40,090 INFO L168 Benchmark]: Toolchain (without parser) took 10992.00 ms. Allocated memory was 69.2 MB in the beginning and 94.4 MB in the end (delta: 25.2 MB). Free memory was 48.1 MB in the beginning and 63.0 MB in the end (delta: -14.9 MB). Peak memory consumption was 45.3 MB. Max. memory is 16.1 GB. [2021-10-24 11:18:40,091 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 69.2 MB. Free memory is still 49.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:18:40,091 INFO L168 Benchmark]: CACSL2BoogieTranslator took 781.21 ms. Allocated memory is still 69.2 MB. Free memory was 47.9 MB in the beginning and 37.5 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 11:18:40,092 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.28 ms. Allocated memory is still 69.2 MB. Free memory was 37.5 MB in the beginning and 33.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 11:18:40,092 INFO L168 Benchmark]: Boogie Preprocessor took 108.37 ms. Allocated memory is still 69.2 MB. Free memory was 33.9 MB in the beginning and 50.4 MB in the end (delta: -16.5 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2021-10-24 11:18:40,093 INFO L168 Benchmark]: RCFGBuilder took 2768.89 ms. Allocated memory was 69.2 MB in the beginning and 94.4 MB in the end (delta: 25.2 MB). Free memory was 50.4 MB in the beginning and 70.8 MB in the end (delta: -20.4 MB). Peak memory consumption was 34.2 MB. Max. memory is 16.1 GB. [2021-10-24 11:18:40,094 INFO L168 Benchmark]: TraceAbstraction took 7098.36 ms. Allocated memory is still 94.4 MB. Free memory was 70.1 MB in the beginning and 32.6 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.8 MB. Max. memory is 16.1 GB. [2021-10-24 11:18:40,094 INFO L168 Benchmark]: Witness Printer took 126.11 ms. Allocated memory is still 94.4 MB. Free memory was 32.6 MB in the beginning and 63.0 MB in the end (delta: -30.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 11:18:40,097 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 69.2 MB. Free memory is still 49.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 781.21 ms. Allocated memory is still 69.2 MB. Free memory was 47.9 MB in the beginning and 37.5 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 101.28 ms. Allocated memory is still 69.2 MB. Free memory was 37.5 MB in the beginning and 33.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 108.37 ms. Allocated memory is still 69.2 MB. Free memory was 33.9 MB in the beginning and 50.4 MB in the end (delta: -16.5 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2768.89 ms. Allocated memory was 69.2 MB in the beginning and 94.4 MB in the end (delta: 25.2 MB). Free memory was 50.4 MB in the beginning and 70.8 MB in the end (delta: -20.4 MB). Peak memory consumption was 34.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7098.36 ms. Allocated memory is still 94.4 MB. Free memory was 70.1 MB in the beginning and 32.6 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.8 MB. Max. memory is 16.1 GB. * Witness Printer took 126.11 ms. Allocated memory is still 94.4 MB. Free memory was 32.6 MB in the beginning and 63.0 MB in the end (delta: -30.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 231]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L239] int waterLevel = 1; [L240] int methaneLevelCritical = 0; [L337] int pumpRunning = 0; [L338] int systemActive = 1; [L776] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L180] int retValue_acc ; [L183] retValue_acc = 1 [L184] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L539] int splverifierCounter ; [L540] int tmp ; [L541] int tmp___0 ; [L542] int tmp___1 ; [L543] int tmp___2 ; [L546] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L548] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L550] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L556] tmp = __VERIFIER_nondet_int() [L558] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L257] COND TRUE waterLevel < 2 [L258] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L566] tmp___0 = __VERIFIER_nondet_int() [L568] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L576] tmp___2 = __VERIFIER_nondet_int() [L578] COND FALSE !(\read(tmp___2)) [L584] tmp___1 = __VERIFIER_nondet_int() [L586] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L518] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L525] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L344] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L351] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L194] int tmp ; [L195] int tmp___0 ; [L196] int tmp___1 ; [L278] int retValue_acc ; [L281] retValue_acc = methaneLevelCritical [L282] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L200] tmp = isMethaneLevelCritical() [L202] COND FALSE !(\read(tmp)) [L310] int retValue_acc ; [L313] retValue_acc = waterLevel [L314] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L206] tmp___0 = getWaterLevel() [L208] COND TRUE tmp___0 == 2 [L451] int retValue_acc ; [L454] retValue_acc = pumpRunning [L455] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L210] tmp___1 = isPumpRunning() [L212] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L231] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - UnprovableResult [Line: 231]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 231]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 119 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6857.4ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 40.5ms, AutomataDifference: 816.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 492 SDtfs, 1120 SDslu, 1018 SDs, 0 SdLazy, 181 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 292.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 203.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=232occurred in iteration=5, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 152.2ms AutomataMinimizationTime, 5 MinimizatonAttempts, 718 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 194.7ms SsaConstructionTime, 1566.2ms SatisfiabilityAnalysisTime, 1063.8ms InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 363 SizeOfPredicates, 4 NumberOfNonLiveVariables, 997 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-24 11:18:40,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbec9cf2-c9ac-4b81-9d48-3b4337c5df53/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...