./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8 --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 1a14cd82fb4a7a8631dbac962b884aa1ac25841cd2c28c7e6e05438cc00132d3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:58:37,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:58:37,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:58:37,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:58:37,335 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:58:37,337 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:58:37,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:58:37,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:58:37,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:58:37,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:58:37,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:58:37,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:58:37,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:58:37,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:58:37,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:58:37,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:58:37,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:58:37,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:58:37,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:58:37,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:58:37,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:58:37,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:58:37,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:58:37,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:58:37,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:58:37,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:58:37,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:58:37,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:58:37,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:58:37,387 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:58:37,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:58:37,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:58:37,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:58:37,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:58:37,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:58:37,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:58:37,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:58:37,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:58:37,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:58:37,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:58:37,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:58:37,400 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 00:58:37,433 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:58:37,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:58:37,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:58:37,435 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:58:37,435 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:58:37,436 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:58:37,436 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 00:58:37,436 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:58:37,436 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:58:37,437 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 00:58:37,437 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 00:58:37,437 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:58:37,438 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 00:58:37,438 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 00:58:37,438 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 00:58:37,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:58:37,439 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 00:58:37,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 00:58:37,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 00:58:37,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:58:37,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:58:37,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:58:37,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:58:37,441 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:58:37,442 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 00:58:37,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:58:37,442 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:58:37,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:58:37,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:58:37,443 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:58:37,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:58:37,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:58:37,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:58:37,444 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:58:37,444 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 00:58:37,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 00:58:37,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:58:37,445 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:58:37,446 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:58:37,446 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_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a14cd82fb4a7a8631dbac962b884aa1ac25841cd2c28c7e6e05438cc00132d3 [2021-11-07 00:58:37,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:58:37,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:58:37,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:58:37,844 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:58:37,845 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:58:37,846 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c [2021-11-07 00:58:37,948 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/data/0d01d9820/b19b33508a9e48598e8834966a90a3f3/FLAG07a0197c0 [2021-11-07 00:58:38,638 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:58:38,651 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c [2021-11-07 00:58:38,669 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/data/0d01d9820/b19b33508a9e48598e8834966a90a3f3/FLAG07a0197c0 [2021-11-07 00:58:38,875 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/data/0d01d9820/b19b33508a9e48598e8834966a90a3f3 [2021-11-07 00:58:38,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:58:38,880 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:58:38,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:58:38,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:58:38,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:58:38,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:58:38" (1/1) ... [2021-11-07 00:58:38,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74b6a90e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:38, skipping insertion in model container [2021-11-07 00:58:38,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:58:38" (1/1) ... [2021-11-07 00:58:38,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:58:38,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:58:39,496 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_f28bdfdf-603a-4840-b34e-406c75d094fd/sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c[20029,20042] [2021-11-07 00:58:39,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:58:39,545 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) [2021-11-07 00:58:39,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@380b7958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:39, skipping insertion in model container [2021-11-07 00:58:39,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:58:39,548 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 00:58:39,552 INFO L168 Benchmark]: Toolchain (without parser) took 669.09 ms. Allocated memory is still 111.1 MB. Free memory was 68.9 MB in the beginning and 81.0 MB in the end (delta: -12.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 00:58:39,553 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 111.1 MB. Free memory is still 86.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:58:39,556 INFO L168 Benchmark]: CACSL2BoogieTranslator took 655.86 ms. Allocated memory is still 111.1 MB. Free memory was 68.7 MB in the beginning and 81.0 MB in the end (delta: -12.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 00:58:39,558 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 111.1 MB. Free memory is still 86.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 655.86 ms. Allocated memory is still 111.1 MB. Free memory was 68.7 MB in the beginning and 81.0 MB in the end (delta: -12.3 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: 78]: 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8 --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 1a14cd82fb4a7a8631dbac962b884aa1ac25841cd2c28c7e6e05438cc00132d3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:58:42,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:58:42,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:58:42,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:58:42,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:58:42,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:58:42,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:58:42,307 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:58:42,310 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:58:42,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:58:42,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:58:42,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:58:42,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:58:42,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:58:42,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:58:42,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:58:42,324 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:58:42,325 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:58:42,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:58:42,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:58:42,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:58:42,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:58:42,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:58:42,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:58:42,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:58:42,357 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:58:42,358 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:58:42,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:58:42,365 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:58:42,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:58:42,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:58:42,369 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:58:42,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:58:42,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:58:42,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:58:42,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:58:42,381 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:58:42,381 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:58:42,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:58:42,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:58:42,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:58:42,386 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 00:58:42,449 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:58:42,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:58:42,451 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:58:42,451 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:58:42,452 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:58:42,452 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:58:42,452 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:58:42,452 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:58:42,453 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:58:42,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:58:42,456 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 00:58:42,456 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 00:58:42,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:58:42,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:58:42,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:58:42,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:58:42,457 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:58:42,458 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 00:58:42,458 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 00:58:42,458 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 00:58:42,458 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:58:42,459 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:58:42,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:58:42,459 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:58:42,459 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 00:58:42,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:58:42,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:58:42,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:58:42,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:58:42,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:58:42,461 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 00:58:42,461 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 00:58:42,461 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:58:42,462 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:58:42,462 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:58:42,462 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_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a14cd82fb4a7a8631dbac962b884aa1ac25841cd2c28c7e6e05438cc00132d3 [2021-11-07 00:58:42,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:58:42,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:58:42,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:58:42,974 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:58:42,977 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:58:42,978 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c [2021-11-07 00:58:43,083 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/data/db0dc7d16/f8351715836240c7b947c5ea4b1cd80b/FLAGd233b7f61 [2021-11-07 00:58:43,876 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:58:43,876 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c [2021-11-07 00:58:43,907 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/data/db0dc7d16/f8351715836240c7b947c5ea4b1cd80b/FLAGd233b7f61 [2021-11-07 00:58:44,164 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/data/db0dc7d16/f8351715836240c7b947c5ea4b1cd80b [2021-11-07 00:58:44,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:58:44,171 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:58:44,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:58:44,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:58:44,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:58:44,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:58:44" (1/1) ... [2021-11-07 00:58:44,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10b27f82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:44, skipping insertion in model container [2021-11-07 00:58:44,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:58:44" (1/1) ... [2021-11-07 00:58:44,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:58:44,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:58:44,606 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_f28bdfdf-603a-4840-b34e-406c75d094fd/sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c[20029,20042] [2021-11-07 00:58:44,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:58:44,709 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 00:58:44,723 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:58:44,851 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_f28bdfdf-603a-4840-b34e-406c75d094fd/sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c[20029,20042] [2021-11-07 00:58:44,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:58:44,886 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 00:58:45,033 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_f28bdfdf-603a-4840-b34e-406c75d094fd/sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c[20029,20042] [2021-11-07 00:58:45,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:58:45,077 INFO L208 MainTranslator]: Completed translation [2021-11-07 00:58:45,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:45 WrapperNode [2021-11-07 00:58:45,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:58:45,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 00:58:45,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 00:58:45,080 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 00:58:45,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:45" (1/1) ... [2021-11-07 00:58:45,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:45" (1/1) ... [2021-11-07 00:58:45,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 00:58:45,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 00:58:45,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 00:58:45,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 00:58:45,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:45" (1/1) ... [2021-11-07 00:58:45,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:45" (1/1) ... [2021-11-07 00:58:45,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:45" (1/1) ... [2021-11-07 00:58:45,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:45" (1/1) ... [2021-11-07 00:58:45,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:45" (1/1) ... [2021-11-07 00:58:45,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:45" (1/1) ... [2021-11-07 00:58:45,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:45" (1/1) ... [2021-11-07 00:58:45,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 00:58:45,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 00:58:45,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 00:58:45,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 00:58:45,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:45" (1/1) ... [2021-11-07 00:58:45,462 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:58:45,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:58:45,493 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 00:58:45,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 00:58:45,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 00:58:45,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 00:58:45,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 00:58:45,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 00:58:49,273 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 00:58:49,273 INFO L299 CfgBuilder]: Removed 906 assume(true) statements. [2021-11-07 00:58:49,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:58:49 BoogieIcfgContainer [2021-11-07 00:58:49,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 00:58:49,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 00:58:49,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 00:58:49,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 00:58:49,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:58:44" (1/3) ... [2021-11-07 00:58:49,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b5c5243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:58:49, skipping insertion in model container [2021-11-07 00:58:49,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:45" (2/3) ... [2021-11-07 00:58:49,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b5c5243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:58:49, skipping insertion in model container [2021-11-07 00:58:49,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:58:49" (3/3) ... [2021-11-07 00:58:49,286 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_productSimulator.cil.c [2021-11-07 00:58:49,292 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 00:58:49,292 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-07 00:58:49,348 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 00:58:49,355 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 [2021-11-07 00:58:49,355 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-07 00:58:49,393 INFO L276 IsEmpty]: Start isEmpty. Operand has 476 states, 472 states have (on average 1.5741525423728813) internal successors, (743), 475 states have internal predecessors, (743), 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) [2021-11-07 00:58:49,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 00:58:49,401 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:58:49,402 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:58:49,403 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 00:58:49,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:58:49,409 INFO L85 PathProgramCache]: Analyzing trace with hash 603642961, now seen corresponding path program 1 times [2021-11-07 00:58:49,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:58:49,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040551008] [2021-11-07 00:58:49,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:58:49,429 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:58:49,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:58:49,433 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:58:49,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 00:58:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:58:49,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 00:58:49,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:58:49,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:58:49,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:58:49,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:58:49,928 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:58:49,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040551008] [2021-11-07 00:58:49,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040551008] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:58:49,930 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:58:49,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 00:58:49,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220131912] [2021-11-07 00:58:49,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 00:58:49,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:58:49,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 00:58:49,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 00:58:49,967 INFO L87 Difference]: Start difference. First operand has 476 states, 472 states have (on average 1.5741525423728813) internal successors, (743), 475 states have internal predecessors, (743), 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 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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) [2021-11-07 00:58:50,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:58:50,067 INFO L93 Difference]: Finished difference Result 939 states and 1472 transitions. [2021-11-07 00:58:50,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 00:58:50,069 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 25 [2021-11-07 00:58:50,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:58:50,095 INFO L225 Difference]: With dead ends: 939 [2021-11-07 00:58:50,103 INFO L226 Difference]: Without dead ends: 472 [2021-11-07 00:58:50,111 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 00:58:50,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2021-11-07 00:58:50,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 472. [2021-11-07 00:58:50,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 469 states have (on average 1.55863539445629) internal successors, (731), 471 states have internal predecessors, (731), 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) [2021-11-07 00:58:50,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 731 transitions. [2021-11-07 00:58:50,200 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 731 transitions. Word has length 25 [2021-11-07 00:58:50,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:58:50,201 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 731 transitions. [2021-11-07 00:58:50,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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) [2021-11-07 00:58:50,201 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 731 transitions. [2021-11-07 00:58:50,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-07 00:58:50,204 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:58:50,204 INFO L513 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] [2021-11-07 00:58:50,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 00:58:50,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:58:50,421 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 00:58:50,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:58:50,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1179320613, now seen corresponding path program 1 times [2021-11-07 00:58:50,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:58:50,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [855881759] [2021-11-07 00:58:50,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:58:50,423 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:58:50,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:58:50,427 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:58:50,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 00:58:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:58:50,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:58:50,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:58:50,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:58:50,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:58:50,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:58:50,874 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:58:50,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [855881759] [2021-11-07 00:58:50,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [855881759] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:58:50,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:58:50,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:58:50,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169862880] [2021-11-07 00:58:50,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:58:50,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:58:50,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:58:50,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:58:50,880 INFO L87 Difference]: Start difference. First operand 472 states and 731 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-11-07 00:58:50,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:58:50,909 INFO L93 Difference]: Finished difference Result 472 states and 731 transitions. [2021-11-07 00:58:50,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 00:58:50,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 [2021-11-07 00:58:50,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:58:50,912 INFO L225 Difference]: With dead ends: 472 [2021-11-07 00:58:50,912 INFO L226 Difference]: Without dead ends: 174 [2021-11-07 00:58:50,914 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:58:50,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-11-07 00:58:50,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2021-11-07 00:58:50,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 173 states have (on average 1.5375722543352601) internal successors, (266), 173 states have internal predecessors, (266), 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) [2021-11-07 00:58:50,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 266 transitions. [2021-11-07 00:58:50,930 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 266 transitions. Word has length 26 [2021-11-07 00:58:50,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:58:50,930 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 266 transitions. [2021-11-07 00:58:50,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-11-07 00:58:50,931 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 266 transitions. [2021-11-07 00:58:50,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 00:58:50,933 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:58:50,933 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:58:50,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 00:58:51,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:58:51,152 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 00:58:51,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:58:51,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1733739639, now seen corresponding path program 1 times [2021-11-07 00:58:51,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:58:51,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575886135] [2021-11-07 00:58:51,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:58:51,155 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:58:51,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:58:51,157 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:58:51,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 00:58:51,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:58:51,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:58:51,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:58:51,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:58:51,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:58:51,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:58:51,718 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:58:51,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575886135] [2021-11-07 00:58:51,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575886135] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:58:51,719 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:58:51,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 00:58:51,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224507277] [2021-11-07 00:58:51,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:58:51,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:58:51,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:58:51,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:58:51,722 INFO L87 Difference]: Start difference. First operand 174 states and 266 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 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) [2021-11-07 00:58:51,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:58:51,770 INFO L93 Difference]: Finished difference Result 523 states and 813 transitions. [2021-11-07 00:58:51,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:58:51,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 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 32 [2021-11-07 00:58:51,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:58:51,774 INFO L225 Difference]: With dead ends: 523 [2021-11-07 00:58:51,774 INFO L226 Difference]: Without dead ends: 362 [2021-11-07 00:58:51,775 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:58:51,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-11-07 00:58:51,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 197. [2021-11-07 00:58:51,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 196 states have (on average 1.5408163265306123) internal successors, (302), 196 states have internal predecessors, (302), 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) [2021-11-07 00:58:51,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 302 transitions. [2021-11-07 00:58:51,814 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 302 transitions. Word has length 32 [2021-11-07 00:58:51,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:58:51,814 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 302 transitions. [2021-11-07 00:58:51,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 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) [2021-11-07 00:58:51,815 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 302 transitions. [2021-11-07 00:58:51,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-07 00:58:51,817 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:58:51,817 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:58:51,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-07 00:58:52,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:58:52,031 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 00:58:52,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:58:52,032 INFO L85 PathProgramCache]: Analyzing trace with hash -614678817, now seen corresponding path program 1 times [2021-11-07 00:58:52,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:58:52,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523362552] [2021-11-07 00:58:52,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:58:52,034 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:58:52,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:58:52,035 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:58:52,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 00:58:52,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:58:52,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:58:52,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:58:52,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:58:52,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:58:52,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:58:52,634 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:58:52,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523362552] [2021-11-07 00:58:52,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523362552] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:58:52,636 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:58:52,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 00:58:52,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985774626] [2021-11-07 00:58:52,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 00:58:52,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:58:52,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 00:58:52,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 00:58:52,641 INFO L87 Difference]: Start difference. First operand 197 states and 302 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 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) [2021-11-07 00:58:52,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:58:52,792 INFO L93 Difference]: Finished difference Result 394 states and 612 transitions. [2021-11-07 00:58:52,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 00:58:52,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 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 35 [2021-11-07 00:58:52,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:58:52,795 INFO L225 Difference]: With dead ends: 394 [2021-11-07 00:58:52,796 INFO L226 Difference]: Without dead ends: 210 [2021-11-07 00:58:52,796 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 00:58:52,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-11-07 00:58:52,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 208. [2021-11-07 00:58:52,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 207 states have (on average 1.502415458937198) internal successors, (311), 207 states have internal predecessors, (311), 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) [2021-11-07 00:58:52,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 311 transitions. [2021-11-07 00:58:52,820 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 311 transitions. Word has length 35 [2021-11-07 00:58:52,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:58:52,821 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 311 transitions. [2021-11-07 00:58:52,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 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) [2021-11-07 00:58:52,821 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 311 transitions. [2021-11-07 00:58:52,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-07 00:58:52,823 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:58:52,824 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:58:52,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 00:58:53,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:58:53,041 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 00:58:53,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:58:53,042 INFO L85 PathProgramCache]: Analyzing trace with hash -227430660, now seen corresponding path program 1 times [2021-11-07 00:58:53,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:58:53,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [53367432] [2021-11-07 00:58:53,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:58:53,043 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:58:53,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:58:53,044 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:58:53,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 00:58:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:58:53,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 00:58:53,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:58:53,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:58:53,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:58:53,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:58:53,708 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:58:53,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [53367432] [2021-11-07 00:58:53,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [53367432] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:58:53,709 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:58:53,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-07 00:58:53,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763218743] [2021-11-07 00:58:53,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 00:58:53,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:58:53,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 00:58:53,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 00:58:53,712 INFO L87 Difference]: Start difference. First operand 208 states and 311 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 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) [2021-11-07 00:58:54,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:58:54,826 INFO L93 Difference]: Finished difference Result 2557 states and 3926 transitions. [2021-11-07 00:58:54,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-07 00:58:54,829 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 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 35 [2021-11-07 00:58:54,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:58:54,848 INFO L225 Difference]: With dead ends: 2557 [2021-11-07 00:58:54,848 INFO L226 Difference]: Without dead ends: 2362 [2021-11-07 00:58:54,851 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-11-07 00:58:54,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2021-11-07 00:58:54,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 511. [2021-11-07 00:58:54,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 510 states have (on average 1.492156862745098) internal successors, (761), 510 states have internal predecessors, (761), 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) [2021-11-07 00:58:54,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 761 transitions. [2021-11-07 00:58:54,952 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 761 transitions. Word has length 35 [2021-11-07 00:58:54,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:58:54,953 INFO L470 AbstractCegarLoop]: Abstraction has 511 states and 761 transitions. [2021-11-07 00:58:54,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 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) [2021-11-07 00:58:54,953 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 761 transitions. [2021-11-07 00:58:54,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 00:58:54,956 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:58:54,957 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:58:54,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 00:58:55,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:58:55,172 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 00:58:55,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:58:55,173 INFO L85 PathProgramCache]: Analyzing trace with hash 223425023, now seen corresponding path program 1 times [2021-11-07 00:58:55,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:58:55,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767382019] [2021-11-07 00:58:55,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:58:55,175 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:58:55,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:58:55,176 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:58:55,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 00:58:57,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 00:58:57,293 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 00:58:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 00:58:58,970 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-07 00:58:58,970 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 00:58:58,972 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 00:58:58,974 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 00:58:58,974 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 00:58:59,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 00:58:59,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:58:59,219 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-07 00:58:59,223 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 00:58:59,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:58:59 BoogieIcfgContainer [2021-11-07 00:58:59,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 00:58:59,439 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 00:58:59,439 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 00:58:59,439 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 00:58:59,440 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:58:49" (3/4) ... [2021-11-07 00:58:59,442 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-07 00:58:59,606 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 00:58:59,611 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 00:58:59,613 INFO L168 Benchmark]: Toolchain (without parser) took 15440.65 ms. Allocated memory was 56.6 MB in the beginning and 121.6 MB in the end (delta: 65.0 MB). Free memory was 32.2 MB in the beginning and 64.8 MB in the end (delta: -32.6 MB). Peak memory consumption was 33.4 MB. Max. memory is 16.1 GB. [2021-11-07 00:58:59,614 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 56.6 MB. Free memory was 37.8 MB in the beginning and 37.8 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:58:59,615 INFO L168 Benchmark]: CACSL2BoogieTranslator took 905.15 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 32.0 MB in the beginning and 41.7 MB in the end (delta: -9.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-11-07 00:58:59,616 INFO L168 Benchmark]: Boogie Procedure Inliner took 185.37 ms. Allocated memory is still 73.4 MB. Free memory was 41.7 MB in the beginning and 45.8 MB in the end (delta: -4.1 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2021-11-07 00:58:59,616 INFO L168 Benchmark]: Boogie Preprocessor took 182.60 ms. Allocated memory is still 73.4 MB. Free memory was 45.8 MB in the beginning and 38.4 MB in the end (delta: 7.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-07 00:58:59,616 INFO L168 Benchmark]: RCFGBuilder took 3826.16 ms. Allocated memory was 73.4 MB in the beginning and 100.7 MB in the end (delta: 27.3 MB). Free memory was 38.4 MB in the beginning and 49.9 MB in the end (delta: -11.5 MB). Peak memory consumption was 27.6 MB. Max. memory is 16.1 GB. [2021-11-07 00:58:59,617 INFO L168 Benchmark]: TraceAbstraction took 10158.78 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 49.0 MB in the beginning and 83.6 MB in the end (delta: -34.6 MB). Peak memory consumption was 41.6 MB. Max. memory is 16.1 GB. [2021-11-07 00:58:59,617 INFO L168 Benchmark]: Witness Printer took 172.88 ms. Allocated memory is still 121.6 MB. Free memory was 83.6 MB in the beginning and 64.8 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-11-07 00:58:59,620 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 56.6 MB. Free memory was 37.8 MB in the beginning and 37.8 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 905.15 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 32.0 MB in the beginning and 41.7 MB in the end (delta: -9.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 185.37 ms. Allocated memory is still 73.4 MB. Free memory was 41.7 MB in the beginning and 45.8 MB in the end (delta: -4.1 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 182.60 ms. Allocated memory is still 73.4 MB. Free memory was 45.8 MB in the beginning and 38.4 MB in the end (delta: 7.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3826.16 ms. Allocated memory was 73.4 MB in the beginning and 100.7 MB in the end (delta: 27.3 MB). Free memory was 38.4 MB in the beginning and 49.9 MB in the end (delta: -11.5 MB). Peak memory consumption was 27.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10158.78 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 49.0 MB in the beginning and 83.6 MB in the end (delta: -34.6 MB). Peak memory consumption was 41.6 MB. Max. memory is 16.1 GB. * Witness Printer took 172.88 ms. Allocated memory is still 121.6 MB. Free memory was 83.6 MB in the beginning and 64.8 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1032]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L520] int __SELECTED_FEATURE_base ; [L521] int __SELECTED_FEATURE_highWaterSensor ; [L522] int __SELECTED_FEATURE_lowWaterSensor ; [L523] int __SELECTED_FEATURE_methaneQuery ; [L524] int __SELECTED_FEATURE_methaneAlarm ; [L525] int __SELECTED_FEATURE_stopCommand ; [L526] int __SELECTED_FEATURE_startCommand ; [L527] int __GUIDSL_ROOT_PRODUCTION ; [L615] int pumpRunning = 0; [L616] int systemActive = 1; [L1037] int waterLevel = 1; [L1038] int methaneLevelCritical = 0; VAL [__GUIDSL_ROOT_PRODUCTION=0, __SELECTED_FEATURE_base=0, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L497] int retValue_acc ; [L498] int tmp ; [L978] __GUIDSL_ROOT_PRODUCTION = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=0, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L963] __SELECTED_FEATURE_base = 1 [L949] int retValue_acc ; [L950] int choice = __VERIFIER_nondet_int(); [L953] retValue_acc = choice [L954] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L964] __SELECTED_FEATURE_highWaterSensor = select_one() [L949] int retValue_acc ; [L950] int choice = __VERIFIER_nondet_int(); [L953] retValue_acc = choice [L954] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=8, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L965] __SELECTED_FEATURE_lowWaterSensor = select_one() [L949] int retValue_acc ; [L950] int choice = __VERIFIER_nondet_int(); [L953] retValue_acc = choice [L954] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=8, __SELECTED_FEATURE_lowWaterSensor=10, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L966] __SELECTED_FEATURE_methaneQuery = select_one() [L949] int retValue_acc ; [L950] int choice = __VERIFIER_nondet_int(); [L953] retValue_acc = choice [L954] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=8, __SELECTED_FEATURE_lowWaterSensor=10, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=11, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L967] __SELECTED_FEATURE_methaneAlarm = select_one() [L949] int retValue_acc ; [L950] int choice = __VERIFIER_nondet_int(); [L953] retValue_acc = choice [L954] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=8, __SELECTED_FEATURE_lowWaterSensor=10, __SELECTED_FEATURE_methaneAlarm=14, __SELECTED_FEATURE_methaneQuery=11, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L968] __SELECTED_FEATURE_stopCommand = select_one() [L949] int retValue_acc ; [L950] int choice = __VERIFIER_nondet_int(); [L953] retValue_acc = choice [L954] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=8, __SELECTED_FEATURE_lowWaterSensor=10, __SELECTED_FEATURE_methaneAlarm=14, __SELECTED_FEATURE_methaneQuery=11, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=2151677952, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L969] __SELECTED_FEATURE_startCommand = select_one() [L983] int retValue_acc ; [L986] retValue_acc = __SELECTED_FEATURE_base [L987] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=8, __SELECTED_FEATURE_lowWaterSensor=10, __SELECTED_FEATURE_methaneAlarm=14, __SELECTED_FEATURE_methaneQuery=11, __SELECTED_FEATURE_startCommand=15, __SELECTED_FEATURE_stopCommand=2151677952, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L504] tmp = valid_product() [L506] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=8, __SELECTED_FEATURE_lowWaterSensor=10, __SELECTED_FEATURE_methaneAlarm=14, __SELECTED_FEATURE_methaneQuery=11, __SELECTED_FEATURE_startCommand=15, __SELECTED_FEATURE_stopCommand=2151677952, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L531] int splverifierCounter ; [L532] int tmp ; [L533] int tmp___0 ; [L534] int tmp___1 ; [L535] int tmp___2 ; [L538] splverifierCounter = 0 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=8, __SELECTED_FEATURE_lowWaterSensor=10, __SELECTED_FEATURE_methaneAlarm=14, __SELECTED_FEATURE_methaneQuery=11, __SELECTED_FEATURE_startCommand=15, __SELECTED_FEATURE_stopCommand=2151677952, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L540] COND TRUE 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=8, __SELECTED_FEATURE_lowWaterSensor=10, __SELECTED_FEATURE_methaneAlarm=14, __SELECTED_FEATURE_methaneQuery=11, __SELECTED_FEATURE_startCommand=15, __SELECTED_FEATURE_stopCommand=2151677952, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L542] COND TRUE splverifierCounter < 4 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=8, __SELECTED_FEATURE_lowWaterSensor=10, __SELECTED_FEATURE_methaneAlarm=14, __SELECTED_FEATURE_methaneQuery=11, __SELECTED_FEATURE_startCommand=15, __SELECTED_FEATURE_stopCommand=2151677952, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L548] tmp = __VERIFIER_nondet_int() [L550] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=8, __SELECTED_FEATURE_lowWaterSensor=10, __SELECTED_FEATURE_methaneAlarm=14, __SELECTED_FEATURE_methaneQuery=11, __SELECTED_FEATURE_startCommand=15, __SELECTED_FEATURE_stopCommand=2151677952, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1055] COND TRUE waterLevel < 2 [L1056] waterLevel = waterLevel + 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=8, __SELECTED_FEATURE_lowWaterSensor=10, __SELECTED_FEATURE_methaneAlarm=14, __SELECTED_FEATURE_methaneQuery=11, __SELECTED_FEATURE_startCommand=15, __SELECTED_FEATURE_stopCommand=2151677952, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L558] tmp___0 = __VERIFIER_nondet_int() [L560] COND FALSE !(\read(tmp___0)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=8, __SELECTED_FEATURE_lowWaterSensor=10, __SELECTED_FEATURE_methaneAlarm=14, __SELECTED_FEATURE_methaneQuery=11, __SELECTED_FEATURE_startCommand=15, __SELECTED_FEATURE_stopCommand=2151677952, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L568] tmp___2 = __VERIFIER_nondet_int() [L570] COND FALSE !(\read(tmp___2)) [L580] tmp___1 = __VERIFIER_nondet_int() [L582] COND TRUE \read(tmp___1) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=8, __SELECTED_FEATURE_lowWaterSensor=10, __SELECTED_FEATURE_methaneAlarm=14, __SELECTED_FEATURE_methaneQuery=11, __SELECTED_FEATURE_startCommand=15, __SELECTED_FEATURE_stopCommand=2151677952, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L583] COND TRUE \read(__SELECTED_FEATURE_stopCommand) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=8, __SELECTED_FEATURE_lowWaterSensor=10, __SELECTED_FEATURE_methaneAlarm=14, __SELECTED_FEATURE_methaneQuery=11, __SELECTED_FEATURE_startCommand=15, __SELECTED_FEATURE_stopCommand=2151677952, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L927] COND FALSE !(\read(pumpRunning)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=8, __SELECTED_FEATURE_lowWaterSensor=10, __SELECTED_FEATURE_methaneAlarm=14, __SELECTED_FEATURE_methaneQuery=11, __SELECTED_FEATURE_startCommand=15, __SELECTED_FEATURE_stopCommand=2151677952, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L934] systemActive = 0 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=8, __SELECTED_FEATURE_lowWaterSensor=10, __SELECTED_FEATURE_methaneAlarm=14, __SELECTED_FEATURE_methaneQuery=11, __SELECTED_FEATURE_startCommand=15, __SELECTED_FEATURE_stopCommand=2151677952, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L623] COND FALSE !(\read(pumpRunning)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=8, __SELECTED_FEATURE_lowWaterSensor=10, __SELECTED_FEATURE_methaneAlarm=14, __SELECTED_FEATURE_methaneQuery=11, __SELECTED_FEATURE_startCommand=15, __SELECTED_FEATURE_stopCommand=2151677952, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L630] COND FALSE !(\read(systemActive)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=8, __SELECTED_FEATURE_lowWaterSensor=10, __SELECTED_FEATURE_methaneAlarm=14, __SELECTED_FEATURE_methaneQuery=11, __SELECTED_FEATURE_startCommand=15, __SELECTED_FEATURE_stopCommand=2151677952, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L995] int tmp ; [L996] int tmp___0 ; [L997] int tmp___1 ; [L1076] int retValue_acc ; [L1079] retValue_acc = methaneLevelCritical [L1080] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=8, __SELECTED_FEATURE_lowWaterSensor=10, __SELECTED_FEATURE_methaneAlarm=14, __SELECTED_FEATURE_methaneQuery=11, __SELECTED_FEATURE_startCommand=15, __SELECTED_FEATURE_stopCommand=2151677952, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1001] tmp = isMethaneLevelCritical() [L1003] COND FALSE !(\read(tmp)) [L1108] int retValue_acc ; [L1111] retValue_acc = waterLevel [L1112] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=8, __SELECTED_FEATURE_lowWaterSensor=10, __SELECTED_FEATURE_methaneAlarm=14, __SELECTED_FEATURE_methaneQuery=11, __SELECTED_FEATURE_startCommand=15, __SELECTED_FEATURE_stopCommand=2151677952, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1007] tmp___0 = getWaterLevel() [L1009] COND TRUE tmp___0 == 2 [L841] int retValue_acc ; [L844] retValue_acc = pumpRunning [L845] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=8, __SELECTED_FEATURE_lowWaterSensor=10, __SELECTED_FEATURE_methaneAlarm=14, __SELECTED_FEATURE_methaneQuery=11, __SELECTED_FEATURE_startCommand=15, __SELECTED_FEATURE_stopCommand=2151677952, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1011] tmp___1 = isPumpRunning() [L1013] COND FALSE !(\read(tmp___1)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=8, __SELECTED_FEATURE_lowWaterSensor=10, __SELECTED_FEATURE_methaneAlarm=14, __SELECTED_FEATURE_methaneQuery=11, __SELECTED_FEATURE_startCommand=15, __SELECTED_FEATURE_stopCommand=2151677952, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1032] reach_error() VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=8, __SELECTED_FEATURE_lowWaterSensor=10, __SELECTED_FEATURE_methaneAlarm=14, __SELECTED_FEATURE_methaneQuery=11, __SELECTED_FEATURE_startCommand=15, __SELECTED_FEATURE_stopCommand=2151677952, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - UnprovableResult [Line: 1032]: 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: 1032]: 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, 476 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 9.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1916 SDtfs, 3982 SDslu, 3624 SDs, 0 SdLazy, 430 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 305 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=511occurred in iteration=5, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 2018 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 296 ConstructedInterpolants, 0 QuantifiedInterpolants, 666 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1137 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! [2021-11-07 00:58:59,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bdfdf-603a-4840-b34e-406c75d094fd/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE