./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 45558e1c10008e5b16efe572a84fcf92b08797f54d586c51d45827b7e38254a6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:05:16,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:05:16,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:05:16,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:05:16,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:05:16,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:05:16,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:05:16,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:05:16,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:05:16,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:05:16,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:05:16,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:05:16,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:05:16,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:05:16,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:05:16,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:05:16,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:05:16,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:05:16,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:05:16,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:05:16,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:05:16,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:05:16,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:05:16,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:05:16,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:05:16,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:05:16,235 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:05:16,236 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:05:16,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:05:16,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:05:16,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:05:16,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:05:16,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:05:16,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:05:16,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:05:16,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:05:16,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:05:16,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:05:16,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:05:16,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:05:16,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:05:16,254 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 02:05:16,282 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:05:16,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:05:16,283 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:05:16,284 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:05:16,284 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:05:16,284 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:05:16,284 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:05:16,285 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:05:16,285 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:05:16,285 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:05:16,285 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:05:16,286 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:05:16,286 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:05:16,286 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:05:16,286 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:05:16,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:05:16,287 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:05:16,288 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:05:16,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:05:16,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:05:16,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:05:16,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:05:16,289 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:05:16,289 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:05:16,289 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:05:16,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:05:16,290 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:05:16,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:05:16,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:05:16,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:05:16,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:05:16,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:05:16,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:05:16,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:05:16,292 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:05:16,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:05:16,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:05:16,293 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:05:16,293 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:05:16,293 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_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45558e1c10008e5b16efe572a84fcf92b08797f54d586c51d45827b7e38254a6 [2021-11-07 02:05:16,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:05:16,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:05:16,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:05:16,555 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:05:16,556 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:05:16,557 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c [2021-11-07 02:05:16,645 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/data/563a51a82/8471e5087518485da18424537d5ef9b1/FLAG58074fddc [2021-11-07 02:05:17,152 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:05:17,153 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c [2021-11-07 02:05:17,168 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/data/563a51a82/8471e5087518485da18424537d5ef9b1/FLAG58074fddc [2021-11-07 02:05:17,492 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/data/563a51a82/8471e5087518485da18424537d5ef9b1 [2021-11-07 02:05:17,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:05:17,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:05:17,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:05:17,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:05:17,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:05:17,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:05:17" (1/1) ... [2021-11-07 02:05:17,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43968799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:17, skipping insertion in model container [2021-11-07 02:05:17,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:05:17" (1/1) ... [2021-11-07 02:05:17,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:05:17,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:05:17,796 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_2c4a27b8-70e0-496b-ae48-af3067d51b5e/sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c[9333,9346] [2021-11-07 02:05:17,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:05:17,916 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 02:05:17,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@46b0b4d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:17, skipping insertion in model container [2021-11-07 02:05:17,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:05:17,918 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:05:17,921 INFO L168 Benchmark]: Toolchain (without parser) took 422.72 ms. Allocated memory is still 100.7 MB. Free memory was 67.4 MB in the beginning and 72.0 MB in the end (delta: -4.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 02:05:17,922 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 100.7 MB. Free memory is still 55.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:05:17,924 INFO L168 Benchmark]: CACSL2BoogieTranslator took 407.05 ms. Allocated memory is still 100.7 MB. Free memory was 67.2 MB in the beginning and 72.0 MB in the end (delta: -4.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 02:05:17,926 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 100.7 MB. Free memory is still 55.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 407.05 ms. Allocated memory is still 100.7 MB. Free memory was 67.2 MB in the beginning and 72.0 MB in the end (delta: -4.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 645]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 45558e1c10008e5b16efe572a84fcf92b08797f54d586c51d45827b7e38254a6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:05:20,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:05:20,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:05:20,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:05:20,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:05:20,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:05:20,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:05:20,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:05:20,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:05:20,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:05:20,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:05:20,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:05:20,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:05:20,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:05:20,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:05:20,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:05:20,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:05:20,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:05:20,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:05:20,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:05:20,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:05:20,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:05:20,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:05:20,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:05:20,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:05:20,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:05:20,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:05:20,249 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:05:20,249 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:05:20,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:05:20,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:05:20,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:05:20,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:05:20,254 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:05:20,255 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:05:20,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:05:20,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:05:20,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:05:20,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:05:20,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:05:20,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:05:20,261 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 02:05:20,288 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:05:20,288 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:05:20,289 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:05:20,289 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:05:20,289 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:05:20,290 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:05:20,290 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:05:20,290 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:05:20,290 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:05:20,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:05:20,291 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:05:20,292 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:05:20,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:05:20,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:05:20,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:05:20,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:05:20,293 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:05:20,293 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:05:20,293 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:05:20,293 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:05:20,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:05:20,294 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:05:20,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:05:20,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:05:20,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:05:20,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:05:20,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:05:20,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:05:20,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:05:20,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:05:20,296 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:05:20,296 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:05:20,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:05:20,297 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:05:20,297 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:05:20,297 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_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45558e1c10008e5b16efe572a84fcf92b08797f54d586c51d45827b7e38254a6 [2021-11-07 02:05:20,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:05:20,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:05:20,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:05:20,717 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:05:20,718 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:05:20,721 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c [2021-11-07 02:05:20,798 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/data/cfbd4ef6b/f63d15a9dcaf40b5b2df15c3d7d0ea5a/FLAG44a47af5d [2021-11-07 02:05:21,409 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:05:21,410 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c [2021-11-07 02:05:21,426 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/data/cfbd4ef6b/f63d15a9dcaf40b5b2df15c3d7d0ea5a/FLAG44a47af5d [2021-11-07 02:05:21,667 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/data/cfbd4ef6b/f63d15a9dcaf40b5b2df15c3d7d0ea5a [2021-11-07 02:05:21,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:05:21,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:05:21,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:05:21,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:05:21,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:05:21,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:05:21" (1/1) ... [2021-11-07 02:05:21,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@342debb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:21, skipping insertion in model container [2021-11-07 02:05:21,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:05:21" (1/1) ... [2021-11-07 02:05:21,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:05:21,727 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:05:21,996 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_2c4a27b8-70e0-496b-ae48-af3067d51b5e/sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c[9333,9346] [2021-11-07 02:05:22,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:05:22,155 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:05:22,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:05:22,228 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_2c4a27b8-70e0-496b-ae48-af3067d51b5e/sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c[9333,9346] [2021-11-07 02:05:22,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:05:22,309 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:05:22,356 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_2c4a27b8-70e0-496b-ae48-af3067d51b5e/sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c[9333,9346] [2021-11-07 02:05:22,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:05:22,445 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:05:22,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:22 WrapperNode [2021-11-07 02:05:22,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:05:22,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:05:22,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:05:22,448 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:05:22,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:22" (1/1) ... [2021-11-07 02:05:22,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:22" (1/1) ... [2021-11-07 02:05:22,595 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:05:22,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:05:22,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:05:22,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:05:22,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:22" (1/1) ... [2021-11-07 02:05:22,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:22" (1/1) ... [2021-11-07 02:05:22,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:22" (1/1) ... [2021-11-07 02:05:22,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:22" (1/1) ... [2021-11-07 02:05:22,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:22" (1/1) ... [2021-11-07 02:05:22,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:22" (1/1) ... [2021-11-07 02:05:22,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:22" (1/1) ... [2021-11-07 02:05:22,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:05:22,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:05:22,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:05:22,769 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:05:22,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:22" (1/1) ... [2021-11-07 02:05:22,777 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:05:22,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:05:22,803 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:05:22,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:05:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:05:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:05:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:05:22,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:05:25,980 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:05:25,980 INFO L299 CfgBuilder]: Removed 900 assume(true) statements. [2021-11-07 02:05:25,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:05:25 BoogieIcfgContainer [2021-11-07 02:05:25,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:05:25,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:05:25,985 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:05:25,988 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:05:25,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:05:21" (1/3) ... [2021-11-07 02:05:25,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf32ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:05:25, skipping insertion in model container [2021-11-07 02:05:25,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:22" (2/3) ... [2021-11-07 02:05:25,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf32ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:05:25, skipping insertion in model container [2021-11-07 02:05:25,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:05:25" (3/3) ... [2021-11-07 02:05:25,991 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_productSimulator.cil.c [2021-11-07 02:05:25,996 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:05:25,996 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-07 02:05:26,061 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:05:26,083 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 02:05:26,083 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-07 02:05:26,125 INFO L276 IsEmpty]: Start isEmpty. Operand has 470 states, 466 states have (on average 1.5751072961373391) internal successors, (734), 469 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:26,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-07 02:05:26,132 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:05:26,133 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:05:26,134 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:05:26,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:05:26,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1535705576, now seen corresponding path program 1 times [2021-11-07 02:05:26,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:05:26,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373395047] [2021-11-07 02:05:26,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:05:26,171 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:05:26,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:05:26,174 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:05:26,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:05:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:05:26,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 02:05:26,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:05:26,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:26,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:05:26,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:26,648 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:05:26,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1373395047] [2021-11-07 02:05:26,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1373395047] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:05:26,650 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:05:26,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:05:26,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79068683] [2021-11-07 02:05:26,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 02:05:26,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:05:26,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 02:05:26,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:05:26,683 INFO L87 Difference]: Start difference. First operand has 470 states, 466 states have (on average 1.5751072961373391) internal successors, (734), 469 states have internal predecessors, (734), 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 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:26,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:05:26,763 INFO L93 Difference]: Finished difference Result 927 states and 1454 transitions. [2021-11-07 02:05:26,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 02:05:26,765 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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 23 [2021-11-07 02:05:26,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:05:26,789 INFO L225 Difference]: With dead ends: 927 [2021-11-07 02:05:26,790 INFO L226 Difference]: Without dead ends: 466 [2021-11-07 02:05:26,794 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:05:26,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2021-11-07 02:05:26,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2021-11-07 02:05:26,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 463 states have (on average 1.5593952483801297) internal successors, (722), 465 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:26,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 722 transitions. [2021-11-07 02:05:26,869 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 722 transitions. Word has length 23 [2021-11-07 02:05:26,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:05:26,870 INFO L470 AbstractCegarLoop]: Abstraction has 466 states and 722 transitions. [2021-11-07 02:05:26,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:26,870 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 722 transitions. [2021-11-07 02:05:26,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 02:05:26,872 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:05:26,872 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:05:26,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:05:27,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:05:27,082 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:05:27,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:05:27,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1882100476, now seen corresponding path program 1 times [2021-11-07 02:05:27,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:05:27,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [696692674] [2021-11-07 02:05:27,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:05:27,086 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:05:27,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:05:27,087 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:05:27,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:05:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:05:27,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:05:27,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:05:27,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:27,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:05:27,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:27,485 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:05:27,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [696692674] [2021-11-07 02:05:27,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [696692674] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:05:27,487 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:05:27,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:05:27,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929295283] [2021-11-07 02:05:27,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:05:27,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:05:27,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:05:27,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:05:27,497 INFO L87 Difference]: Start difference. First operand 466 states and 722 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:27,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:05:27,553 INFO L93 Difference]: Finished difference Result 466 states and 722 transitions. [2021-11-07 02:05:27,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:05:27,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-07 02:05:27,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:05:27,556 INFO L225 Difference]: With dead ends: 466 [2021-11-07 02:05:27,557 INFO L226 Difference]: Without dead ends: 172 [2021-11-07 02:05:27,558 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:05:27,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-11-07 02:05:27,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2021-11-07 02:05:27,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 1.5380116959064327) internal successors, (263), 171 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:27,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 263 transitions. [2021-11-07 02:05:27,576 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 263 transitions. Word has length 24 [2021-11-07 02:05:27,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:05:27,577 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 263 transitions. [2021-11-07 02:05:27,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:27,578 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 263 transitions. [2021-11-07 02:05:27,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 02:05:27,580 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:05:27,581 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:05:27,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:05:27,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:05:27,797 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:05:27,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:05:27,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1978143563, now seen corresponding path program 1 times [2021-11-07 02:05:27,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:05:27,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290442230] [2021-11-07 02:05:27,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:05:27,800 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:05:27,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:05:27,802 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:05:27,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:05:28,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:05:28,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:05:28,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:05:28,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:28,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:05:28,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:28,249 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:05:28,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290442230] [2021-11-07 02:05:28,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290442230] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:05:28,250 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:05:28,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 02:05:28,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982496376] [2021-11-07 02:05:28,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:05:28,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:05:28,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:05:28,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:05:28,256 INFO L87 Difference]: Start difference. First operand 172 states and 263 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 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) [2021-11-07 02:05:28,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:05:28,301 INFO L93 Difference]: Finished difference Result 515 states and 801 transitions. [2021-11-07 02:05:28,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:05:28,301 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 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) Word has length 30 [2021-11-07 02:05:28,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:05:28,304 INFO L225 Difference]: With dead ends: 515 [2021-11-07 02:05:28,304 INFO L226 Difference]: Without dead ends: 356 [2021-11-07 02:05:28,305 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:05:28,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2021-11-07 02:05:28,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 193. [2021-11-07 02:05:28,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 192 states have (on average 1.5416666666666667) internal successors, (296), 192 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:28,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 296 transitions. [2021-11-07 02:05:28,359 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 296 transitions. Word has length 30 [2021-11-07 02:05:28,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:05:28,360 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 296 transitions. [2021-11-07 02:05:28,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 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) [2021-11-07 02:05:28,360 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 296 transitions. [2021-11-07 02:05:28,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 02:05:28,362 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:05:28,362 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:05:28,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:05:28,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:05:28,578 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:05:28,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:05:28,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1554604317, now seen corresponding path program 1 times [2021-11-07 02:05:28,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:05:28,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1976534632] [2021-11-07 02:05:28,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:05:28,581 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:05:28,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:05:28,582 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:05:28,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:05:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:05:28,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:05:28,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:05:28,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:28,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:05:29,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:29,047 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:05:29,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1976534632] [2021-11-07 02:05:29,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1976534632] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:05:29,048 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:05:29,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:05:29,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368297106] [2021-11-07 02:05:29,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:05:29,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:05:29,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:05:29,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:05:29,050 INFO L87 Difference]: Start difference. First operand 193 states and 296 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:29,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:05:29,151 INFO L93 Difference]: Finished difference Result 384 states and 597 transitions. [2021-11-07 02:05:29,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:05:29,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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 33 [2021-11-07 02:05:29,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:05:29,154 INFO L225 Difference]: With dead ends: 384 [2021-11-07 02:05:29,154 INFO L226 Difference]: Without dead ends: 204 [2021-11-07 02:05:29,155 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:05:29,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-11-07 02:05:29,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 202. [2021-11-07 02:05:29,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 201 states have (on average 1.5024875621890548) internal successors, (302), 201 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:29,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 302 transitions. [2021-11-07 02:05:29,175 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 302 transitions. Word has length 33 [2021-11-07 02:05:29,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:05:29,175 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 302 transitions. [2021-11-07 02:05:29,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:29,176 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 302 transitions. [2021-11-07 02:05:29,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 02:05:29,184 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:05:29,184 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:05:29,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:05:29,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:05:29,397 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:05:29,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:05:29,397 INFO L85 PathProgramCache]: Analyzing trace with hash 965063802, now seen corresponding path program 1 times [2021-11-07 02:05:29,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:05:29,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [473401695] [2021-11-07 02:05:29,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:05:29,399 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:05:29,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:05:29,400 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:05:29,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:05:29,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:05:29,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:05:29,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:05:29,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:29,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:05:29,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:29,901 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:05:29,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [473401695] [2021-11-07 02:05:29,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [473401695] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:05:29,902 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:05:29,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-07 02:05:29,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199016671] [2021-11-07 02:05:29,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 02:05:29,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:05:29,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 02:05:29,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:05:29,904 INFO L87 Difference]: Start difference. First operand 202 states and 302 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:30,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:05:30,533 INFO L93 Difference]: Finished difference Result 1694 states and 2601 transitions. [2021-11-07 02:05:30,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 02:05:30,533 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 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 33 [2021-11-07 02:05:30,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:05:30,543 INFO L225 Difference]: With dead ends: 1694 [2021-11-07 02:05:30,544 INFO L226 Difference]: Without dead ends: 1505 [2021-11-07 02:05:30,545 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2021-11-07 02:05:30,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2021-11-07 02:05:30,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 491. [2021-11-07 02:05:30,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 490 states have (on average 1.489795918367347) internal successors, (730), 490 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:30,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 730 transitions. [2021-11-07 02:05:30,607 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 730 transitions. Word has length 33 [2021-11-07 02:05:30,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:05:30,607 INFO L470 AbstractCegarLoop]: Abstraction has 491 states and 730 transitions. [2021-11-07 02:05:30,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:30,613 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 730 transitions. [2021-11-07 02:05:30,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-07 02:05:30,615 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:05:30,615 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:05:30,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:05:30,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:05:30,832 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:05:30,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:05:30,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1610564718, now seen corresponding path program 1 times [2021-11-07 02:05:30,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:05:30,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1040630090] [2021-11-07 02:05:30,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:05:30,833 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:05:30,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:05:30,834 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:05:30,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:05:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:05:31,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 02:05:31,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:05:31,273 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:31,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:05:31,464 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:31,464 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:05:31,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1040630090] [2021-11-07 02:05:31,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1040630090] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:05:31,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [923176383] [2021-11-07 02:05:31,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:05:31,465 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:05:31,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:05:31,471 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:05:31,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-07 02:05:31,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:05:31,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:05:31,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:05:31,979 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-07 02:05:31,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:05:32,076 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-07 02:05:32,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [923176383] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:05:32,076 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 02:05:32,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [3, 3] total 9 [2021-11-07 02:05:32,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279826704] [2021-11-07 02:05:32,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:05:32,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:05:32,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:05:32,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:05:32,078 INFO L87 Difference]: Start difference. First operand 491 states and 730 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 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) [2021-11-07 02:05:32,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:05:32,500 INFO L93 Difference]: Finished difference Result 1309 states and 1977 transitions. [2021-11-07 02:05:32,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 02:05:32,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 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 49 [2021-11-07 02:05:32,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:05:32,512 INFO L225 Difference]: With dead ends: 1309 [2021-11-07 02:05:32,512 INFO L226 Difference]: Without dead ends: 1307 [2021-11-07 02:05:32,513 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-07 02:05:32,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1307 states. [2021-11-07 02:05:32,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1307 to 491. [2021-11-07 02:05:32,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 490 states have (on average 1.4857142857142858) internal successors, (728), 490 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:32,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 728 transitions. [2021-11-07 02:05:32,577 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 728 transitions. Word has length 49 [2021-11-07 02:05:32,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:05:32,579 INFO L470 AbstractCegarLoop]: Abstraction has 491 states and 728 transitions. [2021-11-07 02:05:32,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 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) [2021-11-07 02:05:32,579 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 728 transitions. [2021-11-07 02:05:32,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-07 02:05:32,581 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:05:32,581 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:05:32,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:05:32,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-11-07 02:05:32,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 02:05:32,994 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:05:32,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:05:32,994 INFO L85 PathProgramCache]: Analyzing trace with hash 421650894, now seen corresponding path program 1 times [2021-11-07 02:05:32,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:05:32,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347369480] [2021-11-07 02:05:32,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:05:32,995 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:05:32,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:05:32,998 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:05:32,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 02:05:33,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:05:33,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:05:33,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:05:33,470 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 02:05:33,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:05:33,617 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 02:05:33,617 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:05:33,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347369480] [2021-11-07 02:05:33,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1347369480] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:05:33,618 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:05:33,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 02:05:33,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437305848] [2021-11-07 02:05:33,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:05:33,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:05:33,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:05:33,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:05:33,619 INFO L87 Difference]: Start difference. First operand 491 states and 728 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:33,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:05:33,886 INFO L93 Difference]: Finished difference Result 1333 states and 1967 transitions. [2021-11-07 02:05:33,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:05:33,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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 59 [2021-11-07 02:05:33,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:05:33,893 INFO L225 Difference]: With dead ends: 1333 [2021-11-07 02:05:33,893 INFO L226 Difference]: Without dead ends: 855 [2021-11-07 02:05:33,895 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:05:33,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2021-11-07 02:05:33,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 551. [2021-11-07 02:05:33,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 550 states have (on average 1.4327272727272726) internal successors, (788), 550 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:33,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 788 transitions. [2021-11-07 02:05:33,955 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 788 transitions. Word has length 59 [2021-11-07 02:05:33,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:05:33,957 INFO L470 AbstractCegarLoop]: Abstraction has 551 states and 788 transitions. [2021-11-07 02:05:33,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:33,959 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 788 transitions. [2021-11-07 02:05:33,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-07 02:05:33,961 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:05:33,962 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:05:33,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 02:05:34,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:05:34,176 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:05:34,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:05:34,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1807854288, now seen corresponding path program 1 times [2021-11-07 02:05:34,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:05:34,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1059159364] [2021-11-07 02:05:34,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:05:34,179 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:05:34,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:05:34,180 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:05:34,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 02:05:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:05:34,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:05:34,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:05:34,693 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 02:05:34,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:05:34,841 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 02:05:34,841 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:05:34,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1059159364] [2021-11-07 02:05:34,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1059159364] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:05:34,843 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:05:34,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 02:05:34,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341704694] [2021-11-07 02:05:34,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:05:34,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:05:34,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:05:34,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:05:34,846 INFO L87 Difference]: Start difference. First operand 551 states and 788 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:35,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:05:35,079 INFO L93 Difference]: Finished difference Result 1290 states and 1845 transitions. [2021-11-07 02:05:35,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:05:35,080 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 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 59 [2021-11-07 02:05:35,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:05:35,085 INFO L225 Difference]: With dead ends: 1290 [2021-11-07 02:05:35,085 INFO L226 Difference]: Without dead ends: 752 [2021-11-07 02:05:35,086 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:05:35,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2021-11-07 02:05:35,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 464. [2021-11-07 02:05:35,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 463 states have (on average 1.3909287257019438) internal successors, (644), 463 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:35,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 644 transitions. [2021-11-07 02:05:35,138 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 644 transitions. Word has length 59 [2021-11-07 02:05:35,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:05:35,139 INFO L470 AbstractCegarLoop]: Abstraction has 464 states and 644 transitions. [2021-11-07 02:05:35,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:35,139 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 644 transitions. [2021-11-07 02:05:35,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-07 02:05:35,141 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:05:35,141 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:05:35,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 02:05:35,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:05:35,354 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:05:35,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:05:35,357 INFO L85 PathProgramCache]: Analyzing trace with hash 124429653, now seen corresponding path program 1 times [2021-11-07 02:05:35,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:05:35,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1903437452] [2021-11-07 02:05:35,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:05:35,358 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:05:35,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:05:35,360 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:05:35,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 02:05:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:05:35,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:05:35,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:05:35,901 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:35,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:05:36,059 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:36,060 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:05:36,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1903437452] [2021-11-07 02:05:36,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1903437452] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:05:36,060 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:05:36,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 02:05:36,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378199534] [2021-11-07 02:05:36,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:05:36,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:05:36,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:05:36,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:05:36,062 INFO L87 Difference]: Start difference. First operand 464 states and 644 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:37,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:05:37,455 INFO L93 Difference]: Finished difference Result 1061 states and 1491 transitions. [2021-11-07 02:05:37,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:05:37,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60 [2021-11-07 02:05:37,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:05:37,460 INFO L225 Difference]: With dead ends: 1061 [2021-11-07 02:05:37,460 INFO L226 Difference]: Without dead ends: 610 [2021-11-07 02:05:37,461 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:05:37,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2021-11-07 02:05:37,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 610. [2021-11-07 02:05:37,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 609 states have (on average 1.3760262725779968) internal successors, (838), 609 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:37,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 838 transitions. [2021-11-07 02:05:37,541 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 838 transitions. Word has length 60 [2021-11-07 02:05:37,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:05:37,543 INFO L470 AbstractCegarLoop]: Abstraction has 610 states and 838 transitions. [2021-11-07 02:05:37,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:37,543 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 838 transitions. [2021-11-07 02:05:37,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-07 02:05:37,545 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:05:37,545 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:05:37,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 02:05:37,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:05:37,759 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:05:37,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:05:37,759 INFO L85 PathProgramCache]: Analyzing trace with hash 417791151, now seen corresponding path program 1 times [2021-11-07 02:05:37,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:05:37,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [596203600] [2021-11-07 02:05:37,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:05:37,760 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:05:37,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:05:37,761 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:05:37,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 02:05:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:05:38,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 02:05:38,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:05:38,336 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:05:38,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:05:38,588 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:05:38,588 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:05:38,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [596203600] [2021-11-07 02:05:38,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [596203600] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:05:38,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [239180220] [2021-11-07 02:05:38,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:05:38,589 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:05:38,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:05:38,594 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:05:38,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-07 02:05:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:05:39,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 02:05:39,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:05:39,317 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:05:39,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:05:39,533 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:05:39,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [239180220] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:05:39,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538373220] [2021-11-07 02:05:39,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:05:39,534 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:05:39,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:05:39,535 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:05:39,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-07 02:05:39,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:05:39,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 02:05:39,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:05:40,144 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:05:40,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:05:40,353 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:05:40,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538373220] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:05:40,353 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 02:05:40,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2021-11-07 02:05:40,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287034401] [2021-11-07 02:05:40,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 02:05:40,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:05:40,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 02:05:40,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-07 02:05:40,357 INFO L87 Difference]: Start difference. First operand 610 states and 838 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:43,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:05:43,007 INFO L93 Difference]: Finished difference Result 3472 states and 4761 transitions. [2021-11-07 02:05:43,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-07 02:05:43,008 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 9 states have internal predecessors, (109), 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 61 [2021-11-07 02:05:43,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:05:43,025 INFO L225 Difference]: With dead ends: 3472 [2021-11-07 02:05:43,025 INFO L226 Difference]: Without dead ends: 2999 [2021-11-07 02:05:43,027 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2021-11-07 02:05:43,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2999 states. [2021-11-07 02:05:43,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2999 to 849. [2021-11-07 02:05:43,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 848 states have (on average 1.3785377358490567) internal successors, (1169), 848 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:43,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1169 transitions. [2021-11-07 02:05:43,147 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1169 transitions. Word has length 61 [2021-11-07 02:05:43,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:05:43,147 INFO L470 AbstractCegarLoop]: Abstraction has 849 states and 1169 transitions. [2021-11-07 02:05:43,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:43,148 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1169 transitions. [2021-11-07 02:05:43,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-07 02:05:43,149 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:05:43,149 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:05:43,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 02:05:43,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-07 02:05:43,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2021-11-07 02:05:43,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 02:05:43,771 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:05:43,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:05:43,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1375374740, now seen corresponding path program 2 times [2021-11-07 02:05:43,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:05:43,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1279189309] [2021-11-07 02:05:43,772 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 02:05:43,772 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:05:43,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:05:43,773 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:05:43,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-07 02:05:45,184 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 02:05:45,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-11-07 02:05:45,184 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 02:05:46,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 02:05:46,968 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-07 02:05:46,968 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 02:05:46,969 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:05:46,971 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:05:46,971 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:05:46,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-07 02:05:47,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:05:47,181 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:05:47,184 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 02:05:47,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:05:47 BoogieIcfgContainer [2021-11-07 02:05:47,416 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 02:05:47,417 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 02:05:47,417 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 02:05:47,418 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 02:05:47,418 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:05:25" (3/4) ... [2021-11-07 02:05:47,420 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-07 02:05:47,633 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 02:05:47,633 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 02:05:47,635 INFO L168 Benchmark]: Toolchain (without parser) took 25963.42 ms. Allocated memory was 58.7 MB in the beginning and 157.3 MB in the end (delta: 98.6 MB). Free memory was 35.7 MB in the beginning and 54.1 MB in the end (delta: -18.5 MB). Peak memory consumption was 80.1 MB. Max. memory is 16.1 GB. [2021-11-07 02:05:47,636 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 58.7 MB. Free memory was 39.7 MB in the beginning and 39.7 MB in the end (delta: 42.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:05:47,636 INFO L168 Benchmark]: CACSL2BoogieTranslator took 773.76 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 35.5 MB in the beginning and 43.4 MB in the end (delta: -7.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 02:05:47,637 INFO L168 Benchmark]: Boogie Procedure Inliner took 147.68 ms. Allocated memory is still 77.6 MB. Free memory was 43.4 MB in the beginning and 51.9 MB in the end (delta: -8.6 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2021-11-07 02:05:47,637 INFO L168 Benchmark]: Boogie Preprocessor took 170.17 ms. Allocated memory is still 77.6 MB. Free memory was 51.8 MB in the beginning and 44.6 MB in the end (delta: 7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:05:47,637 INFO L168 Benchmark]: RCFGBuilder took 3215.60 ms. Allocated memory was 77.6 MB in the beginning and 107.0 MB in the end (delta: 29.4 MB). Free memory was 44.6 MB in the beginning and 75.6 MB in the end (delta: -31.1 MB). Peak memory consumption was 28.7 MB. Max. memory is 16.1 GB. [2021-11-07 02:05:47,638 INFO L168 Benchmark]: TraceAbstraction took 21431.64 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 75.0 MB in the beginning and 92.9 MB in the end (delta: -18.0 MB). Peak memory consumption was 94.0 MB. Max. memory is 16.1 GB. [2021-11-07 02:05:47,638 INFO L168 Benchmark]: Witness Printer took 216.32 ms. Allocated memory is still 157.3 MB. Free memory was 92.9 MB in the beginning and 54.1 MB in the end (delta: 38.8 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-11-07 02:05:47,641 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 58.7 MB. Free memory was 39.7 MB in the beginning and 39.7 MB in the end (delta: 42.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 773.76 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 35.5 MB in the beginning and 43.4 MB in the end (delta: -7.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 147.68 ms. Allocated memory is still 77.6 MB. Free memory was 43.4 MB in the beginning and 51.9 MB in the end (delta: -8.6 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 170.17 ms. Allocated memory is still 77.6 MB. Free memory was 51.8 MB in the beginning and 44.6 MB in the end (delta: 7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3215.60 ms. Allocated memory was 77.6 MB in the beginning and 107.0 MB in the end (delta: 29.4 MB). Free memory was 44.6 MB in the beginning and 75.6 MB in the end (delta: -31.1 MB). Peak memory consumption was 28.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 21431.64 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 75.0 MB in the beginning and 92.9 MB in the end (delta: -18.0 MB). Peak memory consumption was 94.0 MB. Max. memory is 16.1 GB. * Witness Printer took 216.32 ms. Allocated memory is still 157.3 MB. Free memory was 92.9 MB in the beginning and 54.1 MB in the end (delta: 38.8 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 612]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L155] int __SELECTED_FEATURE_base ; [L156] int __SELECTED_FEATURE_highWaterSensor ; [L157] int __SELECTED_FEATURE_lowWaterSensor ; [L158] int __SELECTED_FEATURE_methaneQuery ; [L159] int __SELECTED_FEATURE_methaneAlarm ; [L160] int __SELECTED_FEATURE_stopCommand ; [L161] int __SELECTED_FEATURE_startCommand ; [L162] int __GUIDSL_ROOT_PRODUCTION ; [L200] int pumpRunning = 0; [L201] int systemActive = 1; [L786] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L983] int waterLevel = 1; [L984] int methaneLevelCritical = 0; VAL [__GUIDSL_ROOT_PRODUCTION=0, __SELECTED_FEATURE_base=0, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L1117] __GUIDSL_ROOT_PRODUCTION = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=0, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1102] __SELECTED_FEATURE_base = 1 [L1088] int retValue_acc ; [L1089] int choice = __VERIFIER_nondet_int(); [L1092] retValue_acc = choice [L1093] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1103] __SELECTED_FEATURE_highWaterSensor = select_one() [L1088] int retValue_acc ; [L1089] int choice = __VERIFIER_nondet_int(); [L1092] retValue_acc = choice [L1093] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1104] __SELECTED_FEATURE_lowWaterSensor = select_one() [L1088] int retValue_acc ; [L1089] int choice = __VERIFIER_nondet_int(); [L1092] retValue_acc = choice [L1093] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1105] __SELECTED_FEATURE_methaneQuery = select_one() [L1088] int retValue_acc ; [L1089] int choice = __VERIFIER_nondet_int(); [L1092] retValue_acc = choice [L1093] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1106] __SELECTED_FEATURE_methaneAlarm = select_one() [L1088] int retValue_acc ; [L1089] int choice = __VERIFIER_nondet_int(); [L1092] retValue_acc = choice [L1093] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1107] __SELECTED_FEATURE_stopCommand = select_one() [L1088] int retValue_acc ; [L1089] int choice = __VERIFIER_nondet_int(); [L1092] retValue_acc = choice [L1093] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1108] __SELECTED_FEATURE_startCommand = select_one() [L1122] int retValue_acc ; [L1125] retValue_acc = __SELECTED_FEATURE_base [L1126] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L532] int splverifierCounter ; [L533] int tmp ; [L534] int tmp___0 ; [L535] int tmp___1 ; [L536] int tmp___2 ; [L539] splverifierCounter = 0 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L541] COND TRUE 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L543] COND TRUE splverifierCounter < 4 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L549] tmp = __VERIFIER_nondet_int() [L551] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1001] COND TRUE waterLevel < 2 [L1002] waterLevel = waterLevel + 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L559] tmp___0 = __VERIFIER_nondet_int() [L561] COND FALSE !(\read(tmp___0)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L569] tmp___2 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___2)) [L581] tmp___1 = __VERIFIER_nondet_int() [L583] COND FALSE !(\read(tmp___1)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L207] COND FALSE !(\read(pumpRunning)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L214] COND TRUE \read(systemActive) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L350] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L307] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L264] COND TRUE \read(__SELECTED_FEATURE_highWaterSensor) [L236] int tmp ; VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L239] COND TRUE ! pumpRunning [L470] int retValue_acc ; [L471] int tmp ; [L472] int tmp___0 ; [L1063] int retValue_acc ; VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L1066] COND FALSE !(waterLevel < 2) [L1070] retValue_acc = 0 [L1071] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L476] tmp = isHighWaterSensorDry() [L478] COND FALSE !(\read(tmp)) [L481] tmp___0 = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L483] retValue_acc = tmp___0 [L484] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L241] tmp = isHighWaterLevel() [L243] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L392] COND FALSE !(\read(__SELECTED_FEATURE_methaneQuery)) [L367] pumpRunning = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L166] int tmp ; [L167] int tmp___0 ; [L1054] int retValue_acc ; [L1057] retValue_acc = waterLevel [L1058] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L171] tmp = getWaterLevel() [L173] COND FALSE !(tmp == 0) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L541] COND TRUE 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L543] COND TRUE splverifierCounter < 4 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L549] tmp = __VERIFIER_nondet_int() [L551] COND FALSE !(\read(tmp)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L559] tmp___0 = __VERIFIER_nondet_int() [L561] COND FALSE !(\read(tmp___0)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L569] tmp___2 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___2)) [L581] tmp___1 = __VERIFIER_nondet_int() [L583] COND FALSE !(\read(tmp___1)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L207] COND TRUE \read(pumpRunning) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L989] COND TRUE waterLevel > 0 [L990] waterLevel = waterLevel - 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L214] COND TRUE \read(systemActive) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L350] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L307] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L264] COND TRUE \read(__SELECTED_FEATURE_highWaterSensor) [L236] int tmp ; VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L239] COND FALSE !(! pumpRunning) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L166] int tmp ; [L167] int tmp___0 ; [L1054] int retValue_acc ; [L1057] retValue_acc = waterLevel [L1058] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L171] tmp = getWaterLevel() [L173] COND FALSE !(tmp == 0) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L541] COND TRUE 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L543] COND TRUE splverifierCounter < 4 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L549] tmp = __VERIFIER_nondet_int() [L551] COND FALSE !(\read(tmp)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L559] tmp___0 = __VERIFIER_nondet_int() [L561] COND FALSE !(\read(tmp___0)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L569] tmp___2 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___2)) [L581] tmp___1 = __VERIFIER_nondet_int() [L583] COND FALSE !(\read(tmp___1)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L207] COND TRUE \read(pumpRunning) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L989] COND TRUE waterLevel > 0 [L990] waterLevel = waterLevel - 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L214] COND TRUE \read(systemActive) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L350] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L307] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L264] COND TRUE \read(__SELECTED_FEATURE_highWaterSensor) [L236] int tmp ; VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L239] COND FALSE !(! pumpRunning) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L166] int tmp ; [L167] int tmp___0 ; [L1054] int retValue_acc ; [L1057] retValue_acc = waterLevel [L1058] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L171] tmp = getWaterLevel() [L173] COND TRUE tmp == 0 [L425] int retValue_acc ; [L428] retValue_acc = pumpRunning [L429] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L175] tmp___0 = isPumpRunning() [L177] COND TRUE \read(tmp___0) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L612] reach_error() VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147549184, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - UnprovableResult [Line: 612]: 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: 612]: 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, 470 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 21.1s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 3833 SDtfs, 8885 SDslu, 8213 SDs, 0 SdLazy, 1243 SolverSat, 292 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1217 GetRequests, 1150 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=849occurred in iteration=10, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 4737 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 682 NumberOfCodeBlocks, 682 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1178 ConstructedInterpolants, 0 QuantifiedInterpolants, 2804 SizeOfPredicates, 21 NumberOfNonLiveVariables, 3196 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 26 InterpolantComputations, 18 PerfectInterpolantSequences, 188/270 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-07 02:05:47,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4a27b8-70e0-496b-ae48-af3067d51b5e/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE