./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8 --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 2d7e0a730b4d799fc1a50a54053b5e66ba5f6d84 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8 --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 2d7e0a730b4d799fc1a50a54053b5e66ba5f6d84 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:40:22,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:40:22,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:40:23,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:40:23,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:40:23,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:40:23,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:40:23,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:40:23,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:40:23,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:40:23,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:40:23,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:40:23,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:40:23,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:40:23,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:40:23,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:40:23,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:40:23,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:40:23,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:40:23,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:40:23,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:40:23,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:40:23,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:40:23,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:40:23,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:40:23,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:40:23,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:40:23,108 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:40:23,109 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:40:23,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:40:23,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:40:23,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:40:23,114 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:40:23,115 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:40:23,117 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:40:23,117 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:40:23,118 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:40:23,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:40:23,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:40:23,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:40:23,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:40:23,121 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:40:23,167 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:40:23,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:40:23,169 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:40:23,169 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:40:23,169 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:40:23,169 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:40:23,170 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:40:23,170 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:40:23,177 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:40:23,177 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:40:23,178 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:40:23,178 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:40:23,178 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:40:23,179 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:40:23,179 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:40:23,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:40:23,180 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:40:23,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:40:23,180 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:40:23,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:40:23,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:40:23,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:40:23,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:40:23,181 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:40:23,181 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:40:23,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:40:23,182 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:40:23,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:40:23,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:40:23,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:40:23,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:40:23,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:40:23,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:40:23,184 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:40:23,184 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:40:23,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:40:23,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:40:23,185 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:40:23,185 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:40:23,185 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_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d7e0a730b4d799fc1a50a54053b5e66ba5f6d84 [2021-10-13 07:40:23,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:40:23,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:40:23,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:40:23,528 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:40:23,532 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:40:23,533 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c [2021-10-13 07:40:23,625 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/data/cb0bfecd3/2b4e544b24ba4d77a5cd9faff561a24b/FLAG8abd486ce [2021-10-13 07:40:24,232 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:40:24,233 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c [2021-10-13 07:40:24,248 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/data/cb0bfecd3/2b4e544b24ba4d77a5cd9faff561a24b/FLAG8abd486ce [2021-10-13 07:40:24,506 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/data/cb0bfecd3/2b4e544b24ba4d77a5cd9faff561a24b [2021-10-13 07:40:24,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:40:24,510 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:40:24,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:40:24,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:40:24,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:40:24,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:40:24" (1/1) ... [2021-10-13 07:40:24,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4605b382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:24, skipping insertion in model container [2021-10-13 07:40:24,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:40:24" (1/1) ... [2021-10-13 07:40:24,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:40:24,589 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:40:24,842 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_7cecf695-4e56-4056-97c5-7956fa189900/sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c[5284,5297] [2021-10-13 07:40:24,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:40:24,977 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-13 07:40:24,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@208b496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:24, skipping insertion in model container [2021-10-13 07:40:24,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:40:24,978 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-13 07:40:24,981 INFO L168 Benchmark]: Toolchain (without parser) took 468.68 ms. Allocated memory is still 125.8 MB. Free memory was 91.1 MB in the beginning and 99.5 MB in the end (delta: -8.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:40:24,981 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 88.1 MB. Free memory was 59.5 MB in the beginning and 59.5 MB in the end (delta: 29.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:40:24,982 INFO L168 Benchmark]: CACSL2BoogieTranslator took 460.22 ms. Allocated memory is still 125.8 MB. Free memory was 90.8 MB in the beginning and 99.5 MB in the end (delta: -8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:40:24,987 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 88.1 MB. Free memory was 59.5 MB in the beginning and 59.5 MB in the end (delta: 29.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 460.22 ms. Allocated memory is still 125.8 MB. Free memory was 90.8 MB in the beginning and 99.5 MB in the end (delta: -8.7 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: 419]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:40:27,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:40:27,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:40:27,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:40:27,448 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:40:27,453 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:40:27,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:40:27,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:40:27,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:40:27,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:40:27,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:40:27,474 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:40:27,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:40:27,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:40:27,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:40:27,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:40:27,480 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:40:27,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:40:27,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:40:27,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:40:27,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:40:27,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:40:27,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:40:27,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:40:27,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:40:27,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:40:27,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:40:27,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:40:27,507 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:40:27,508 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:40:27,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:40:27,510 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:40:27,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:40:27,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:40:27,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:40:27,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:40:27,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:40:27,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:40:27,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:40:27,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:40:27,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:40:27,533 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:40:27,573 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:40:27,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:40:27,575 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:40:27,575 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:40:27,576 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:40:27,576 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:40:27,576 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:40:27,577 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:40:27,577 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:40:27,579 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:40:27,580 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:40:27,580 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:40:27,580 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:40:27,581 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:40:27,581 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:40:27,581 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:40:27,581 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:40:27,582 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:40:27,582 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:40:27,582 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:40:27,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:40:27,583 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:40:27,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:40:27,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:40:27,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:40:27,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:40:27,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:40:27,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:40:27,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:40:27,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:40:27,585 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:40:27,585 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:40:27,586 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:40:27,586 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:40:27,587 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:40:27,587 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_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d7e0a730b4d799fc1a50a54053b5e66ba5f6d84 [2021-10-13 07:40:27,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:40:27,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:40:27,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:40:27,972 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:40:27,973 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:40:27,976 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c [2021-10-13 07:40:28,061 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/data/e12a3c600/2c7c48b7d7814a028196a7a164f1e17b/FLAG510e45d7f [2021-10-13 07:40:28,816 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:40:28,817 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c [2021-10-13 07:40:28,832 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/data/e12a3c600/2c7c48b7d7814a028196a7a164f1e17b/FLAG510e45d7f [2021-10-13 07:40:29,053 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/data/e12a3c600/2c7c48b7d7814a028196a7a164f1e17b [2021-10-13 07:40:29,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:40:29,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:40:29,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:40:29,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:40:29,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:40:29,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:40:29" (1/1) ... [2021-10-13 07:40:29,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e25a1dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:29, skipping insertion in model container [2021-10-13 07:40:29,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:40:29" (1/1) ... [2021-10-13 07:40:29,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:40:29,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:40:29,377 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_7cecf695-4e56-4056-97c5-7956fa189900/sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c[5284,5297] [2021-10-13 07:40:29,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:40:29,539 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-13 07:40:29,549 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:40:29,593 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_7cecf695-4e56-4056-97c5-7956fa189900/sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c[5284,5297] [2021-10-13 07:40:29,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:40:29,647 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:40:29,697 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_7cecf695-4e56-4056-97c5-7956fa189900/sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c[5284,5297] [2021-10-13 07:40:29,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:40:29,805 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:40:29,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:29 WrapperNode [2021-10-13 07:40:29,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:40:29,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:40:29,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:40:29,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:40:29,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:29" (1/1) ... [2021-10-13 07:40:29,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:29" (1/1) ... [2021-10-13 07:40:29,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:40:29,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:40:29,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:40:29,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:40:29,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:29" (1/1) ... [2021-10-13 07:40:29,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:29" (1/1) ... [2021-10-13 07:40:29,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:29" (1/1) ... [2021-10-13 07:40:29,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:29" (1/1) ... [2021-10-13 07:40:29,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:29" (1/1) ... [2021-10-13 07:40:29,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:29" (1/1) ... [2021-10-13 07:40:29,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:29" (1/1) ... [2021-10-13 07:40:29,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:40:29,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:40:29,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:40:29,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:40:29,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:29" (1/1) ... [2021-10-13 07:40:30,013 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:40:30,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:40:30,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:40:30,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:40:30,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:40:30,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:40:30,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:40:30,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:40:32,872 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:40:32,872 INFO L299 CfgBuilder]: Removed 106 assume(true) statements. [2021-10-13 07:40:32,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:40:32 BoogieIcfgContainer [2021-10-13 07:40:32,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:40:32,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:40:32,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:40:32,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:40:32,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:40:29" (1/3) ... [2021-10-13 07:40:32,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bfb692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:40:32, skipping insertion in model container [2021-10-13 07:40:32,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:29" (2/3) ... [2021-10-13 07:40:32,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bfb692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:40:32, skipping insertion in model container [2021-10-13 07:40:32,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:40:32" (3/3) ... [2021-10-13 07:40:32,888 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product27.cil.c [2021-10-13 07:40:32,895 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:40:32,895 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-13 07:40:32,964 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:40:32,974 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:40:32,974 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-13 07:40:33,004 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 79 states have (on average 1.5569620253164558) internal successors, (123), 82 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:40:33,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 07:40:33,027 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:40:33,028 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:40:33,029 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:40:33,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:40:33,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1047706522, now seen corresponding path program 1 times [2021-10-13 07:40:33,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:40:33,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2027897424] [2021-10-13 07:40:33,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:40:33,058 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:40:33,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:40:33,059 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:40:33,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:40:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:40:33,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 07:40:33,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:40:33,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:40:33,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:40:33,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:40:33,612 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:40:33,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2027897424] [2021-10-13 07:40:33,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2027897424] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:40:33,613 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:40:33,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 07:40:33,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838862470] [2021-10-13 07:40:33,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 07:40:33,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:40:33,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 07:40:33,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:40:33,642 INFO L87 Difference]: Start difference. First operand has 83 states, 79 states have (on average 1.5569620253164558) internal successors, (123), 82 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:40:33,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:40:33,673 INFO L93 Difference]: Finished difference Result 160 states and 239 transitions. [2021-10-13 07:40:33,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 07:40:33,674 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 07:40:33,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:40:33,687 INFO L225 Difference]: With dead ends: 160 [2021-10-13 07:40:33,687 INFO L226 Difference]: Without dead ends: 79 [2021-10-13 07:40:33,691 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:40:33,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-10-13 07:40:33,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2021-10-13 07:40:33,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 76 states have (on average 1.4605263157894737) internal successors, (111), 78 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:40:33,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 111 transitions. [2021-10-13 07:40:33,740 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 111 transitions. Word has length 18 [2021-10-13 07:40:33,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:40:33,741 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 111 transitions. [2021-10-13 07:40:33,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:40:33,742 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 111 transitions. [2021-10-13 07:40:33,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 07:40:33,743 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:40:33,744 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:40:33,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:40:33,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:40:33,960 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:40:33,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:40:33,961 INFO L82 PathProgramCache]: Analyzing trace with hash 136675769, now seen corresponding path program 1 times [2021-10-13 07:40:33,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:40:33,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283030386] [2021-10-13 07:40:33,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:40:33,962 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:40:33,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:40:33,964 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:40:34,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 07:40:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:40:34,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:40:34,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:40:34,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:40:34,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:40:34,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:40:34,372 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:40:34,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283030386] [2021-10-13 07:40:34,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283030386] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:40:34,373 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:40:34,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:40:34,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057710386] [2021-10-13 07:40:34,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:40:34,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:40:34,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:40:34,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:40:34,383 INFO L87 Difference]: Start difference. First operand 79 states and 111 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:40:34,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:40:34,418 INFO L93 Difference]: Finished difference Result 79 states and 111 transitions. [2021-10-13 07:40:34,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:40:34,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-13 07:40:34,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:40:34,422 INFO L225 Difference]: With dead ends: 79 [2021-10-13 07:40:34,423 INFO L226 Difference]: Without dead ends: 37 [2021-10-13 07:40:34,424 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:40:34,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-13 07:40:34,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-13 07:40:34,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 36 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:40:34,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2021-10-13 07:40:34,446 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 19 [2021-10-13 07:40:34,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:40:34,447 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2021-10-13 07:40:34,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:40:34,448 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2021-10-13 07:40:34,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 07:40:34,451 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:40:34,453 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:40:34,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:40:34,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:40:34,668 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:40:34,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:40:34,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1444562447, now seen corresponding path program 1 times [2021-10-13 07:40:34,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:40:34,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1845231078] [2021-10-13 07:40:34,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:40:34,670 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:40:34,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:40:34,673 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:40:34,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 07:40:34,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:40:34,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:40:34,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:40:35,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:40:35,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:40:35,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:40:35,202 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:40:35,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1845231078] [2021-10-13 07:40:35,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1845231078] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:40:35,203 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:40:35,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 07:40:35,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020571206] [2021-10-13 07:40:35,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:40:35,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:40:35,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:40:35,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:40:35,210 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:40:35,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:40:35,260 INFO L93 Difference]: Finished difference Result 124 states and 181 transitions. [2021-10-13 07:40:35,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:40:35,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-13 07:40:35,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:40:35,267 INFO L225 Difference]: With dead ends: 124 [2021-10-13 07:40:35,267 INFO L226 Difference]: Without dead ends: 93 [2021-10-13 07:40:35,269 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:40:35,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-13 07:40:35,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 58. [2021-10-13 07:40:35,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.4736842105263157) internal successors, (84), 57 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:40:35,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2021-10-13 07:40:35,304 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 24 [2021-10-13 07:40:35,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:40:35,305 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions. [2021-10-13 07:40:35,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:40:35,306 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2021-10-13 07:40:35,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 07:40:35,309 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:40:35,309 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:40:35,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:40:35,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:40:35,526 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:40:35,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:40:35,527 INFO L82 PathProgramCache]: Analyzing trace with hash -685298349, now seen corresponding path program 1 times [2021-10-13 07:40:35,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:40:35,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [969458129] [2021-10-13 07:40:35,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:40:35,528 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:40:35,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:40:35,531 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:40:35,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 07:40:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:40:35,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:40:35,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:40:35,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:40:35,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:40:36,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:40:36,060 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:40:36,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [969458129] [2021-10-13 07:40:36,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [969458129] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:40:36,060 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:40:36,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-13 07:40:36,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919135906] [2021-10-13 07:40:36,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 07:40:36,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:40:36,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 07:40:36,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:40:36,063 INFO L87 Difference]: Start difference. First operand 58 states and 84 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:40:36,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:40:36,477 INFO L93 Difference]: Finished difference Result 602 states and 924 transitions. [2021-10-13 07:40:36,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 07:40:36,477 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 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 [2021-10-13 07:40:36,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:40:36,482 INFO L225 Difference]: With dead ends: 602 [2021-10-13 07:40:36,483 INFO L226 Difference]: Without dead ends: 550 [2021-10-13 07:40:36,484 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 184.5ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-13 07:40:36,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2021-10-13 07:40:36,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 148. [2021-10-13 07:40:36,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 147 states have (on average 1.4557823129251701) internal successors, (214), 147 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:40:36,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 214 transitions. [2021-10-13 07:40:36,536 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 214 transitions. Word has length 25 [2021-10-13 07:40:36,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:40:36,536 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 214 transitions. [2021-10-13 07:40:36,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:40:36,538 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 214 transitions. [2021-10-13 07:40:36,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 07:40:36,544 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:40:36,545 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:40:36,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 07:40:36,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:40:36,769 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:40:36,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:40:36,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1650359957, now seen corresponding path program 1 times [2021-10-13 07:40:36,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:40:36,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [744833954] [2021-10-13 07:40:36,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:40:36,771 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:40:36,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:40:36,773 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:40:36,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 07:40:38,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:40:38,140 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 07:40:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:40:39,436 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-13 07:40:39,436 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 07:40:39,447 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:40:39,449 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:40:39,450 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:40:39,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 07:40:39,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:40:39,682 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:40:39,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:40:39 BoogieIcfgContainer [2021-10-13 07:40:39,830 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:40:39,831 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:40:39,831 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:40:39,831 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:40:39,832 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:40:32" (3/4) ... [2021-10-13 07:40:39,840 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 07:40:39,994 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:40:39,995 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:40:39,996 INFO L168 Benchmark]: Toolchain (without parser) took 10935.36 ms. Allocated memory was 62.9 MB in the beginning and 107.0 MB in the end (delta: 44.0 MB). Free memory was 42.4 MB in the beginning and 50.6 MB in the end (delta: -8.2 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:40:39,997 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 62.9 MB. Free memory is still 44.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:40:39,997 INFO L168 Benchmark]: CACSL2BoogieTranslator took 747.95 ms. Allocated memory is still 62.9 MB. Free memory was 42.3 MB in the beginning and 32.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:40:39,998 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.79 ms. Allocated memory is still 62.9 MB. Free memory was 32.2 MB in the beginning and 29.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:40:39,999 INFO L168 Benchmark]: Boogie Preprocessor took 76.27 ms. Allocated memory is still 62.9 MB. Free memory was 29.2 MB in the beginning and 26.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:40:39,999 INFO L168 Benchmark]: RCFGBuilder took 2878.23 ms. Allocated memory was 62.9 MB in the beginning and 86.0 MB in the end (delta: 23.1 MB). Free memory was 26.8 MB in the beginning and 50.6 MB in the end (delta: -23.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:40:40,000 INFO L168 Benchmark]: TraceAbstraction took 6950.14 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 50.1 MB in the beginning and 62.1 MB in the end (delta: -12.0 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:40:40,001 INFO L168 Benchmark]: Witness Printer took 164.17 ms. Allocated memory is still 107.0 MB. Free memory was 61.1 MB in the beginning and 50.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:40:40,003 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 62.9 MB. Free memory is still 44.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 747.95 ms. Allocated memory is still 62.9 MB. Free memory was 42.3 MB in the beginning and 32.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 108.79 ms. Allocated memory is still 62.9 MB. Free memory was 32.2 MB in the beginning and 29.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.27 ms. Allocated memory is still 62.9 MB. Free memory was 29.2 MB in the beginning and 26.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2878.23 ms. Allocated memory was 62.9 MB in the beginning and 86.0 MB in the end (delta: 23.1 MB). Free memory was 26.8 MB in the beginning and 50.6 MB in the end (delta: -23.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6950.14 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 50.1 MB in the beginning and 62.1 MB in the end (delta: -12.0 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Witness Printer took 164.17 ms. Allocated memory is still 107.0 MB. Free memory was 61.1 MB in the beginning and 50.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 348]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L122] int pumpRunning = 0; [L123] int systemActive = 1; [L560] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L757] int waterLevel = 1; [L758] int methaneLevelCritical = 0; [L846] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L919] int retValue_acc ; [L920] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L382] int retValue_acc ; [L385] retValue_acc = 1 [L386] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L926] tmp = valid_product() [L928] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L59] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L775] COND TRUE waterLevel < 2 [L776] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L137] COND TRUE \read(systemActive) [L159] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L162] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L311] int tmp ; [L312] int tmp___0 ; [L313] int tmp___1 ; [L796] int retValue_acc ; [L799] retValue_acc = methaneLevelCritical [L800] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L317] tmp = isMethaneLevelCritical() [L319] COND FALSE !(\read(tmp)) [L828] int retValue_acc ; [L831] retValue_acc = waterLevel [L832] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L323] tmp___0 = getWaterLevel() [L325] COND TRUE tmp___0 == 2 [L229] int retValue_acc ; [L232] retValue_acc = pumpRunning [L233] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L327] tmp___1 = isPumpRunning() [L329] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L348] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - UnprovableResult [Line: 348]: 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: 348]: 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, 83 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6719.1ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 47.8ms, AutomataDifference: 599.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 301 SDtfs, 771 SDslu, 633 SDs, 0 SdLazy, 118 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 151.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 211.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 138.9ms AutomataMinimizationTime, 4 MinimizatonAttempts, 437 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 152.3ms SsaConstructionTime, 1789.1ms SatisfiabilityAnalysisTime, 1007.9ms InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 352 SizeOfPredicates, 4 NumberOfNonLiveVariables, 790 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-13 07:40:40,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cecf695-4e56-4056-97c5-7956fa189900/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...