./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.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_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/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_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/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_3f905ff4-f0b9-481d-a58d-d05a4479837f/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 2a503d744e1f87de1c9c505a18eb69768c300bcf ............................................................................................................................................ 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_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/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_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/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_3f905ff4-f0b9-481d-a58d-d05a4479837f/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 2a503d744e1f87de1c9c505a18eb69768c300bcf ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 06:44:14,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:44:14,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:44:14,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:44:14,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:44:14,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:44:14,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:44:14,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:44:14,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:44:14,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:44:14,334 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:44:14,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:44:14,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:44:14,339 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:44:14,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:44:14,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:44:14,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:44:14,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:44:14,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:44:14,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:44:14,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:44:14,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:44:14,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:44:14,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:44:14,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:44:14,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:44:14,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:44:14,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:44:14,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:44:14,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:44:14,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:44:14,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:44:14,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:44:14,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:44:14,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:44:14,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:44:14,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:44:14,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:44:14,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:44:14,387 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:44:14,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:44:14,389 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 06:44:14,435 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:44:14,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:44:14,437 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:44:14,438 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:44:14,438 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:44:14,438 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:44:14,438 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 06:44:14,438 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:44:14,439 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:44:14,439 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 06:44:14,446 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 06:44:14,446 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:44:14,447 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 06:44:14,447 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 06:44:14,447 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 06:44:14,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:44:14,448 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:44:14,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 06:44:14,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:44:14,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:44:14,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:44:14,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:44:14,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:44:14,449 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:44:14,449 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:44:14,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:44:14,450 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:44:14,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:44:14,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:44:14,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:44:14,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:44:14,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:44:14,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:44:14,453 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:44:14,453 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 06:44:14,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 06:44:14,454 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:44:14,454 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:44:14,454 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:44:14,454 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_3f905ff4-f0b9-481d-a58d-d05a4479837f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a503d744e1f87de1c9c505a18eb69768c300bcf [2021-10-13 06:44:14,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:44:14,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:44:14,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:44:14,751 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:44:14,752 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:44:14,753 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2021-10-13 06:44:14,837 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/data/e3ed3c037/811b99efb8d946e8b5098eaf8d71ec1b/FLAGc6d3327fe [2021-10-13 06:44:15,360 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:44:15,361 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2021-10-13 06:44:15,394 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/data/e3ed3c037/811b99efb8d946e8b5098eaf8d71ec1b/FLAGc6d3327fe [2021-10-13 06:44:15,668 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/data/e3ed3c037/811b99efb8d946e8b5098eaf8d71ec1b [2021-10-13 06:44:15,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:44:15,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:44:15,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:44:15,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:44:15,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:44:15,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:44:15" (1/1) ... [2021-10-13 06:44:15,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60cee94b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:15, skipping insertion in model container [2021-10-13 06:44:15,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:44:15" (1/1) ... [2021-10-13 06:44:15,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:44:15,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:44:15,963 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_3f905ff4-f0b9-481d-a58d-d05a4479837f/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c[7938,7951] [2021-10-13 06:44:16,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:44:16,077 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 06:44:16,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@61bebdc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:16, skipping insertion in model container [2021-10-13 06:44:16,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:44:16,087 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-13 06:44:16,090 INFO L168 Benchmark]: Toolchain (without parser) took 416.44 ms. Allocated memory is still 107.0 MB. Free memory was 72.9 MB in the beginning and 79.7 MB in the end (delta: -6.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:16,091 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 73.4 MB. Free memory was 31.5 MB in the beginning and 31.4 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:44:16,093 INFO L168 Benchmark]: CACSL2BoogieTranslator took 413.80 ms. Allocated memory is still 107.0 MB. Free memory was 72.7 MB in the beginning and 79.7 MB in the end (delta: -7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:16,095 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 73.4 MB. Free memory was 31.5 MB in the beginning and 31.4 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 413.80 ms. Allocated memory is still 107.0 MB. Free memory was 72.7 MB in the beginning and 79.7 MB in the end (delta: -7.0 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: 591]: 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 06:44:18,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:44:18,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:44:18,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:44:18,284 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:44:18,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:44:18,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:44:18,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:44:18,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:44:18,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:44:18,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:44:18,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:44:18,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:44:18,316 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:44:18,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:44:18,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:44:18,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:44:18,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:44:18,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:44:18,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:44:18,339 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:44:18,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:44:18,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:44:18,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:44:18,350 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:44:18,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:44:18,351 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:44:18,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:44:18,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:44:18,354 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:44:18,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:44:18,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:44:18,357 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:44:18,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:44:18,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:44:18,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:44:18,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:44:18,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:44:18,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:44:18,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:44:18,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:44:18,364 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 06:44:18,406 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:44:18,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:44:18,408 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:44:18,408 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:44:18,408 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:44:18,408 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:44:18,409 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:44:18,409 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:44:18,409 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:44:18,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:44:18,411 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:44:18,412 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:44:18,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:44:18,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:44:18,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:44:18,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:44:18,413 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:44:18,413 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 06:44:18,413 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 06:44:18,413 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:44:18,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:44:18,414 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:44:18,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:44:18,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:44:18,414 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 06:44:18,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:44:18,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:44:18,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:44:18,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:44:18,415 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:44:18,415 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 06:44:18,416 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 06:44:18,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:44:18,426 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:44:18,426 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:44:18,427 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_3f905ff4-f0b9-481d-a58d-d05a4479837f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a503d744e1f87de1c9c505a18eb69768c300bcf [2021-10-13 06:44:18,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:44:18,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:44:18,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:44:18,841 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:44:18,842 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:44:18,843 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2021-10-13 06:44:18,926 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/data/a35aaa67c/4a19ee3ca0984943b24c0a14cbff0d84/FLAGed81de02e [2021-10-13 06:44:19,610 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:44:19,611 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2021-10-13 06:44:19,630 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/data/a35aaa67c/4a19ee3ca0984943b24c0a14cbff0d84/FLAGed81de02e [2021-10-13 06:44:19,892 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/data/a35aaa67c/4a19ee3ca0984943b24c0a14cbff0d84 [2021-10-13 06:44:19,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:44:19,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:44:19,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:44:19,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:44:19,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:44:19,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:44:19" (1/1) ... [2021-10-13 06:44:19,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@703b593f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:19, skipping insertion in model container [2021-10-13 06:44:19,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:44:19" (1/1) ... [2021-10-13 06:44:19,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:44:19,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:44:20,232 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_3f905ff4-f0b9-481d-a58d-d05a4479837f/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c[7938,7951] [2021-10-13 06:44:20,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:44:20,336 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-13 06:44:20,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:44:20,413 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_3f905ff4-f0b9-481d-a58d-d05a4479837f/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c[7938,7951] [2021-10-13 06:44:20,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:44:20,451 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 06:44:20,483 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_3f905ff4-f0b9-481d-a58d-d05a4479837f/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c[7938,7951] [2021-10-13 06:44:20,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:44:20,528 INFO L208 MainTranslator]: Completed translation [2021-10-13 06:44:20,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:20 WrapperNode [2021-10-13 06:44:20,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:44:20,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 06:44:20,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 06:44:20,530 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 06:44:20,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:20" (1/1) ... [2021-10-13 06:44:20,565 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:20" (1/1) ... [2021-10-13 06:44:20,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 06:44:20,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 06:44:20,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 06:44:20,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 06:44:20,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:20" (1/1) ... [2021-10-13 06:44:20,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:20" (1/1) ... [2021-10-13 06:44:20,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:20" (1/1) ... [2021-10-13 06:44:20,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:20" (1/1) ... [2021-10-13 06:44:20,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:20" (1/1) ... [2021-10-13 06:44:20,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:20" (1/1) ... [2021-10-13 06:44:20,695 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:20" (1/1) ... [2021-10-13 06:44:20,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 06:44:20,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 06:44:20,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 06:44:20,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 06:44:20,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:20" (1/1) ... [2021-10-13 06:44:20,709 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:44:20,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:44:20,732 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 06:44:20,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 06:44:20,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 06:44:20,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 06:44:20,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 06:44:20,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 06:44:22,977 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 06:44:22,977 INFO L299 CfgBuilder]: Removed 106 assume(true) statements. [2021-10-13 06:44:22,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:44:22 BoogieIcfgContainer [2021-10-13 06:44:22,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 06:44:22,981 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 06:44:22,981 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 06:44:22,984 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 06:44:22,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:44:19" (1/3) ... [2021-10-13 06:44:22,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bbdb089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:44:22, skipping insertion in model container [2021-10-13 06:44:22,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:20" (2/3) ... [2021-10-13 06:44:22,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bbdb089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:44:22, skipping insertion in model container [2021-10-13 06:44:22,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:44:22" (3/3) ... [2021-10-13 06:44:22,987 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2021-10-13 06:44:22,993 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 06:44:22,993 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-13 06:44:23,046 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 06:44:23,052 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 06:44:23,052 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-13 06:44:23,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 82 states have (on average 1.5731707317073171) internal successors, (129), 85 states have internal predecessors, (129), 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 06:44:23,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 06:44:23,092 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:44:23,092 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 06:44:23,093 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 06:44:23,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:44:23,104 INFO L82 PathProgramCache]: Analyzing trace with hash 625606487, now seen corresponding path program 1 times [2021-10-13 06:44:23,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:44:23,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [796558848] [2021-10-13 06:44:23,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:44:23,133 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:44:23,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:44:23,137 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:44:23,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 06:44:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:44:23,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 06:44:23,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:44:23,422 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 06:44:23,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:44:23,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:44:23,501 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:44:23,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [796558848] [2021-10-13 06:44:23,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [796558848] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:44:23,502 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:44:23,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 06:44:23,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080282737] [2021-10-13 06:44:23,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 06:44:23,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:44:23,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 06:44:23,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 06:44:23,526 INFO L87 Difference]: Start difference. First operand has 86 states, 82 states have (on average 1.5731707317073171) internal successors, (129), 85 states have internal predecessors, (129), 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 06:44:23,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:44:23,551 INFO L93 Difference]: Finished difference Result 166 states and 251 transitions. [2021-10-13 06:44:23,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 06:44:23,553 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 06:44:23,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:44:23,563 INFO L225 Difference]: With dead ends: 166 [2021-10-13 06:44:23,566 INFO L226 Difference]: Without dead ends: 82 [2021-10-13 06:44:23,569 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 06:44:23,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-10-13 06:44:23,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2021-10-13 06:44:23,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 79 states have (on average 1.481012658227848) internal successors, (117), 81 states have internal predecessors, (117), 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 06:44:23,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 117 transitions. [2021-10-13 06:44:23,631 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 117 transitions. Word has length 18 [2021-10-13 06:44:23,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:44:23,632 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 117 transitions. [2021-10-13 06:44:23,634 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 06:44:23,634 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 117 transitions. [2021-10-13 06:44:23,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 06:44:23,636 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:44:23,636 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 06:44:23,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 06:44:23,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:44:23,839 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 06:44:23,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:44:23,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1306218461, now seen corresponding path program 1 times [2021-10-13 06:44:23,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:44:23,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [247180710] [2021-10-13 06:44:23,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:44:23,842 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:44:23,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:44:23,844 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:44:23,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 06:44:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:44:24,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:44:24,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:44:24,242 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 06:44:24,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:44:24,344 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 06:44:24,345 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:44:24,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [247180710] [2021-10-13 06:44:24,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [247180710] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:44:24,345 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:44:24,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 06:44:24,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686719361] [2021-10-13 06:44:24,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:44:24,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:44:24,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:44:24,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:44:24,349 INFO L87 Difference]: Start difference. First operand 82 states and 117 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 06:44:24,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:44:24,363 INFO L93 Difference]: Finished difference Result 82 states and 117 transitions. [2021-10-13 06:44:24,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:44:24,363 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 06:44:24,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:44:24,364 INFO L225 Difference]: With dead ends: 82 [2021-10-13 06:44:24,365 INFO L226 Difference]: Without dead ends: 38 [2021-10-13 06:44:24,365 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:44:24,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-13 06:44:24,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-10-13 06:44:24,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 37 states have internal predecessors, (54), 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 06:44:24,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2021-10-13 06:44:24,371 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2021-10-13 06:44:24,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:44:24,371 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2021-10-13 06:44:24,371 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 06:44:24,372 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2021-10-13 06:44:24,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 06:44:24,373 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:44:24,373 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 06:44:24,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 06:44:24,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:44:24,585 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 06:44:24,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:44:24,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1411810196, now seen corresponding path program 1 times [2021-10-13 06:44:24,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:44:24,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [989606338] [2021-10-13 06:44:24,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:44:24,587 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:44:24,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:44:24,588 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:44:24,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 06:44:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:44:24,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:44:24,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:44:24,891 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 06:44:24,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:44:24,991 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 06:44:24,992 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:44:24,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [989606338] [2021-10-13 06:44:24,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [989606338] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:44:24,993 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:44:24,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 06:44:24,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609198061] [2021-10-13 06:44:24,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:44:24,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:44:24,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:44:24,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:44:24,995 INFO L87 Difference]: Start difference. First operand 38 states and 54 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 06:44:25,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:44:25,018 INFO L93 Difference]: Finished difference Result 127 states and 187 transitions. [2021-10-13 06:44:25,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 06:44:25,019 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 06:44:25,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:44:25,020 INFO L225 Difference]: With dead ends: 127 [2021-10-13 06:44:25,021 INFO L226 Difference]: Without dead ends: 95 [2021-10-13 06:44:25,021 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:44:25,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-13 06:44:25,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 59. [2021-10-13 06:44:25,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.4827586206896552) internal successors, (86), 58 states have internal predecessors, (86), 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 06:44:25,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 86 transitions. [2021-10-13 06:44:25,034 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 86 transitions. Word has length 24 [2021-10-13 06:44:25,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:44:25,034 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 86 transitions. [2021-10-13 06:44:25,034 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 06:44:25,035 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 86 transitions. [2021-10-13 06:44:25,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 06:44:25,036 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:44:25,036 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 06:44:25,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 06:44:25,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:44:25,249 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 06:44:25,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:44:25,249 INFO L82 PathProgramCache]: Analyzing trace with hash -718050600, now seen corresponding path program 1 times [2021-10-13 06:44:25,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:44:25,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [962196938] [2021-10-13 06:44:25,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:44:25,251 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:44:25,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:44:25,252 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:44:25,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 06:44:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:44:25,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:44:25,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:44:25,541 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 06:44:25,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:44:25,618 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 06:44:25,618 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:44:25,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [962196938] [2021-10-13 06:44:25,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [962196938] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:44:25,619 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:44:25,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 06:44:25,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616305090] [2021-10-13 06:44:25,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 06:44:25,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:44:25,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 06:44:25,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 06:44:25,621 INFO L87 Difference]: Start difference. First operand 59 states and 86 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:44:25,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:44:25,675 INFO L93 Difference]: Finished difference Result 135 states and 199 transitions. [2021-10-13 06:44:25,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:44:25,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-13 06:44:25,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:44:25,677 INFO L225 Difference]: With dead ends: 135 [2021-10-13 06:44:25,677 INFO L226 Difference]: Without dead ends: 82 [2021-10-13 06:44:25,678 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 06:44:25,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-10-13 06:44:25,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2021-10-13 06:44:25,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.4430379746835442) internal successors, (114), 79 states have internal predecessors, (114), 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 06:44:25,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 114 transitions. [2021-10-13 06:44:25,694 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 114 transitions. Word has length 25 [2021-10-13 06:44:25,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:44:25,695 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 114 transitions. [2021-10-13 06:44:25,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:44:25,696 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 114 transitions. [2021-10-13 06:44:25,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 06:44:25,698 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:44:25,698 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:44:25,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-13 06:44:25,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:44:25,910 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 06:44:25,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:44:25,910 INFO L82 PathProgramCache]: Analyzing trace with hash -979667415, now seen corresponding path program 1 times [2021-10-13 06:44:25,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:44:25,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292459851] [2021-10-13 06:44:25,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:44:25,912 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:44:25,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:44:25,914 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:44:25,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 06:44:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:44:26,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 06:44:26,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:44:26,264 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 06:44:26,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:44:26,382 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 06:44:26,382 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:44:26,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292459851] [2021-10-13 06:44:26,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [292459851] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:44:26,383 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:44:26,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-13 06:44:26,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258033566] [2021-10-13 06:44:26,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 06:44:26,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:44:26,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 06:44:26,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 06:44:26,385 INFO L87 Difference]: Start difference. First operand 80 states and 114 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:44:26,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:44:26,737 INFO L93 Difference]: Finished difference Result 840 states and 1240 transitions. [2021-10-13 06:44:26,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 06:44:26,738 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-13 06:44:26,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:44:26,743 INFO L225 Difference]: With dead ends: 840 [2021-10-13 06:44:26,744 INFO L226 Difference]: Without dead ends: 766 [2021-10-13 06:44:26,745 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 136.4ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-13 06:44:26,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2021-10-13 06:44:26,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 209. [2021-10-13 06:44:26,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 208 states have (on average 1.4134615384615385) internal successors, (294), 208 states have internal predecessors, (294), 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 06:44:26,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 294 transitions. [2021-10-13 06:44:26,788 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 294 transitions. Word has length 27 [2021-10-13 06:44:26,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:44:26,788 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 294 transitions. [2021-10-13 06:44:26,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:44:26,789 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 294 transitions. [2021-10-13 06:44:26,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 06:44:26,790 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:44:26,790 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:44:26,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 06:44:27,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:44:27,003 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:44:27,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:44:27,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1615036139, now seen corresponding path program 1 times [2021-10-13 06:44:27,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:44:27,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [19876316] [2021-10-13 06:44:27,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:44:27,006 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:44:27,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:44:27,007 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:44:27,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 06:44:28,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 06:44:28,501 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 06:44:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 06:44:29,426 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-13 06:44:29,427 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 06:44:29,428 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 06:44:29,429 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 06:44:29,430 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 06:44:29,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 06:44:29,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:44:29,653 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 06:44:29,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:44:29 BoogieIcfgContainer [2021-10-13 06:44:29,769 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 06:44:29,769 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 06:44:29,769 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 06:44:29,770 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 06:44:29,770 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:44:22" (3/4) ... [2021-10-13 06:44:29,772 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 06:44:29,900 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 06:44:29,900 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 06:44:29,902 INFO L168 Benchmark]: Toolchain (without parser) took 9992.68 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 64.5 MB in the beginning and 44.7 MB in the end (delta: 19.7 MB). Peak memory consumption was 35.5 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:29,905 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 79.7 MB. Free memory was 61.1 MB in the beginning and 61.0 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:44:29,905 INFO L168 Benchmark]: CACSL2BoogieTranslator took 612.90 ms. Allocated memory is still 79.7 MB. Free memory was 64.3 MB in the beginning and 38.7 MB in the end (delta: 25.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:29,906 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.41 ms. Allocated memory is still 79.7 MB. Free memory was 38.7 MB in the beginning and 35.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:29,906 INFO L168 Benchmark]: Boogie Preprocessor took 69.72 ms. Allocated memory is still 79.7 MB. Free memory was 35.7 MB in the beginning and 61.1 MB in the end (delta: -25.4 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:29,907 INFO L168 Benchmark]: RCFGBuilder took 2279.08 ms. Allocated memory is still 79.7 MB. Free memory was 61.1 MB in the beginning and 38.8 MB in the end (delta: 22.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:29,907 INFO L168 Benchmark]: TraceAbstraction took 6787.73 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 38.4 MB in the beginning and 56.9 MB in the end (delta: -18.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:44:29,908 INFO L168 Benchmark]: Witness Printer took 130.94 ms. Allocated memory is still 96.5 MB. Free memory was 56.9 MB in the beginning and 44.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:29,910 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 79.7 MB. Free memory was 61.1 MB in the beginning and 61.0 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 612.90 ms. Allocated memory is still 79.7 MB. Free memory was 64.3 MB in the beginning and 38.7 MB in the end (delta: 25.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 99.41 ms. Allocated memory is still 79.7 MB. Free memory was 38.7 MB in the beginning and 35.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.72 ms. Allocated memory is still 79.7 MB. Free memory was 35.7 MB in the beginning and 61.1 MB in the end (delta: -25.4 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2279.08 ms. Allocated memory is still 79.7 MB. Free memory was 61.1 MB in the beginning and 38.8 MB in the end (delta: 22.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6787.73 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 38.4 MB in the beginning and 56.9 MB in the end (delta: -18.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 130.94 ms. Allocated memory is still 96.5 MB. Free memory was 56.9 MB in the beginning and 44.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 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: 558]: 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; [L326] int cleanupTimeShifts = 4; [L425] int waterLevel = 1; [L426] int methaneLevelCritical = 0; [L732] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L402] int retValue_acc ; [L403] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L545] int retValue_acc ; [L548] retValue_acc = 1 [L549] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L409] tmp = valid_product() [L411] 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] [L443] COND TRUE waterLevel < 2 [L444] 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 FALSE !(\read(tmp___2)) [L91] tmp___1 = __VERIFIER_nondet_int() [L93] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L278] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L285] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L130] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L137] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L293] int tmp ; [L294] int tmp___0 ; [L295] int tmp___1 ; [L464] int retValue_acc ; [L467] retValue_acc = methaneLevelCritical [L468] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L299] tmp = isMethaneLevelCritical() [L301] COND FALSE !(\read(tmp)) [L496] int retValue_acc ; [L499] retValue_acc = waterLevel [L500] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L305] tmp___0 = getWaterLevel() [L307] COND TRUE tmp___0 == 2 [L211] int retValue_acc ; [L214] retValue_acc = pumpRunning [L215] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L309] tmp___1 = isPumpRunning() [L311] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L558] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - UnprovableResult [Line: 558]: 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: 558]: 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, 86 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6607.5ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 31.3ms, AutomataDifference: 523.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 364 SDtfs, 831 SDslu, 707 SDs, 0 SdLazy, 130 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 165.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 225 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 157.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred in iteration=5, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 123.8ms AutomataMinimizationTime, 5 MinimizatonAttempts, 595 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 140.5ms SsaConstructionTime, 1986.4ms SatisfiabilityAnalysisTime, 986.2ms InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 422 SizeOfPredicates, 4 NumberOfNonLiveVariables, 994 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-13 06:44:29,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f905ff4-f0b9-481d-a58d-d05a4479837f/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...