./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan --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 1d28fd66952ef369b293b454cf3bb59a162528dc ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan --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 1d28fd66952ef369b293b454cf3bb59a162528dc ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 10:09:43,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 10:09:43,229 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 10:09:43,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 10:09:43,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 10:09:43,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 10:09:43,277 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 10:09:43,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 10:09:43,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 10:09:43,281 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 10:09:43,282 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 10:09:43,283 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 10:09:43,283 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 10:09:43,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 10:09:43,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 10:09:43,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 10:09:43,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 10:09:43,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 10:09:43,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 10:09:43,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 10:09:43,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 10:09:43,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 10:09:43,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 10:09:43,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 10:09:43,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 10:09:43,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 10:09:43,297 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 10:09:43,298 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 10:09:43,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 10:09:43,299 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 10:09:43,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 10:09:43,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 10:09:43,301 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 10:09:43,302 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 10:09:43,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 10:09:43,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 10:09:43,303 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 10:09:43,303 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 10:09:43,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 10:09:43,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 10:09:43,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 10:09:43,305 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 10:09:43,322 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 10:09:43,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 10:09:43,323 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 10:09:43,323 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 10:09:43,323 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 10:09:43,323 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 10:09:43,323 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 10:09:43,324 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 10:09:43,324 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 10:09:43,324 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 10:09:43,324 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 10:09:43,324 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 10:09:43,324 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 10:09:43,324 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 10:09:43,324 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 10:09:43,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 10:09:43,325 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 10:09:43,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 10:09:43,325 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 10:09:43,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 10:09:43,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 10:09:43,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 10:09:43,326 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 10:09:43,326 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 10:09:43,326 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 10:09:43,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 10:09:43,326 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 10:09:43,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 10:09:43,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 10:09:43,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 10:09:43,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:09:43,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 10:09:43,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 10:09:43,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 10:09:43,327 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 10:09:43,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 10:09:43,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 10:09:43,327 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 10:09:43,327 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 10:09:43,328 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-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d28fd66952ef369b293b454cf3bb59a162528dc [2020-12-09 10:09:43,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 10:09:43,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 10:09:43,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 10:09:43,517 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 10:09:43,517 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 10:09:43,518 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c [2020-12-09 10:09:43,557 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/data/52933f68b/78197d8f4ed4484ab7b95f9a19e8a508/FLAGa1c42713c [2020-12-09 10:09:43,973 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 10:09:43,974 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c [2020-12-09 10:09:43,983 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/data/52933f68b/78197d8f4ed4484ab7b95f9a19e8a508/FLAGa1c42713c [2020-12-09 10:09:43,992 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/data/52933f68b/78197d8f4ed4484ab7b95f9a19e8a508 [2020-12-09 10:09:43,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 10:09:43,995 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 10:09:43,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 10:09:43,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 10:09:43,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 10:09:43,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:09:43" (1/1) ... [2020-12-09 10:09:44,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52af4b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:09:43, skipping insertion in model container [2020-12-09 10:09:44,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:09:43" (1/1) ... [2020-12-09 10:09:44,005 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 10:09:44,044 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 10:09:44,235 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c[13860,13873] [2020-12-09 10:09:44,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:09:44,260 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) [2020-12-09 10:09:44,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7280d281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:09:44, skipping insertion in model container [2020-12-09 10:09:44,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 10:09:44,261 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-12-09 10:09:44,263 INFO L168 Benchmark]: Toolchain (without parser) took 267.30 ms. Allocated memory is still 113.2 MB. Free memory was 85.3 MB in the beginning and 87.3 MB in the end (delta: -2.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 10:09:44,264 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 83.9 MB. Free memory was 40.7 MB in the beginning and 40.7 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:09:44,264 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.40 ms. Allocated memory is still 113.2 MB. Free memory was 85.3 MB in the beginning and 87.8 MB in the end (delta: -2.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 10:09:44,266 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 83.9 MB. Free memory was 40.7 MB in the beginning and 40.7 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 265.40 ms. Allocated memory is still 113.2 MB. Free memory was 85.3 MB in the beginning and 87.8 MB in the end (delta: -2.5 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: 156]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 10:09:45,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 10:09:45,631 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 10:09:45,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 10:09:45,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 10:09:45,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 10:09:45,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 10:09:45,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 10:09:45,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 10:09:45,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 10:09:45,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 10:09:45,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 10:09:45,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 10:09:45,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 10:09:45,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 10:09:45,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 10:09:45,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 10:09:45,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 10:09:45,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 10:09:45,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 10:09:45,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 10:09:45,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 10:09:45,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 10:09:45,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 10:09:45,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 10:09:45,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 10:09:45,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 10:09:45,688 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 10:09:45,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 10:09:45,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 10:09:45,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 10:09:45,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 10:09:45,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 10:09:45,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 10:09:45,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 10:09:45,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 10:09:45,692 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 10:09:45,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 10:09:45,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 10:09:45,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 10:09:45,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 10:09:45,694 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 10:09:45,720 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 10:09:45,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 10:09:45,721 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 10:09:45,722 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 10:09:45,722 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 10:09:45,722 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 10:09:45,722 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 10:09:45,722 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 10:09:45,722 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 10:09:45,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 10:09:45,723 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 10:09:45,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 10:09:45,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 10:09:45,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 10:09:45,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 10:09:45,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 10:09:45,724 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 10:09:45,724 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 10:09:45,724 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 10:09:45,725 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 10:09:45,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 10:09:45,725 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 10:09:45,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 10:09:45,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 10:09:45,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 10:09:45,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 10:09:45,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:09:45,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 10:09:45,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 10:09:45,726 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 10:09:45,726 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 10:09:45,726 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 10:09:45,726 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 10:09:45,727 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 10:09:45,727 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 10:09:45,727 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-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d28fd66952ef369b293b454cf3bb59a162528dc [2020-12-09 10:09:45,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 10:09:45,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 10:09:46,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 10:09:46,002 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 10:09:46,003 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 10:09:46,003 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c [2020-12-09 10:09:46,044 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/data/de50c6ca1/17a4cca2e4c54a9d80db145ee73134c5/FLAG3131d8d99 [2020-12-09 10:09:46,471 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 10:09:46,472 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c [2020-12-09 10:09:46,482 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/data/de50c6ca1/17a4cca2e4c54a9d80db145ee73134c5/FLAG3131d8d99 [2020-12-09 10:09:46,495 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/data/de50c6ca1/17a4cca2e4c54a9d80db145ee73134c5 [2020-12-09 10:09:46,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 10:09:46,498 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 10:09:46,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 10:09:46,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 10:09:46,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 10:09:46,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:09:46" (1/1) ... [2020-12-09 10:09:46,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@749d19b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:09:46, skipping insertion in model container [2020-12-09 10:09:46,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:09:46" (1/1) ... [2020-12-09 10:09:46,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 10:09:46,534 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 10:09:46,747 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c[13860,13873] [2020-12-09 10:09:46,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:09:46,781 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-12-09 10:09:46,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 10:09:46,828 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c[13860,13873] [2020-12-09 10:09:46,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:09:46,844 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 10:09:46,888 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c[13860,13873] [2020-12-09 10:09:46,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:09:46,925 INFO L208 MainTranslator]: Completed translation [2020-12-09 10:09:46,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:09:46 WrapperNode [2020-12-09 10:09:46,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 10:09:46,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 10:09:46,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 10:09:46,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 10:09:46,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:09:46" (1/1) ... [2020-12-09 10:09:46,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:09:46" (1/1) ... [2020-12-09 10:09:46,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 10:09:46,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 10:09:46,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 10:09:46,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 10:09:46,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:09:46" (1/1) ... [2020-12-09 10:09:46,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:09:46" (1/1) ... [2020-12-09 10:09:47,003 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:09:46" (1/1) ... [2020-12-09 10:09:47,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:09:46" (1/1) ... [2020-12-09 10:09:47,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:09:46" (1/1) ... [2020-12-09 10:09:47,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:09:46" (1/1) ... [2020-12-09 10:09:47,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:09:46" (1/1) ... [2020-12-09 10:09:47,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 10:09:47,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 10:09:47,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 10:09:47,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 10:09:47,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:09:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:09:47,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 10:09:47,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 10:09:47,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 10:09:47,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 10:09:48,575 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 10:09:48,575 INFO L299 CfgBuilder]: Removed 78 assume(true) statements. [2020-12-09 10:09:48,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:09:48 BoogieIcfgContainer [2020-12-09 10:09:48,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 10:09:48,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 10:09:48,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 10:09:48,581 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 10:09:48,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:09:46" (1/3) ... [2020-12-09 10:09:48,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500c0915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:09:48, skipping insertion in model container [2020-12-09 10:09:48,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:09:46" (2/3) ... [2020-12-09 10:09:48,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500c0915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:09:48, skipping insertion in model container [2020-12-09 10:09:48,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:09:48" (3/3) ... [2020-12-09 10:09:48,584 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product04.cil.c [2020-12-09 10:09:48,593 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 10:09:48,596 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-09 10:09:48,603 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-09 10:09:48,624 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 10:09:48,624 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 10:09:48,624 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 10:09:48,624 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 10:09:48,624 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 10:09:48,624 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 10:09:48,625 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 10:09:48,625 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 10:09:48,634 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2020-12-09 10:09:48,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-09 10:09:48,637 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:09:48,638 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:09:48,638 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:09:48,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:09:48,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1390476085, now seen corresponding path program 1 times [2020-12-09 10:09:48,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:09:48,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [161108708] [2020-12-09 10:09:48,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 10:09:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:09:48,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 10:09:48,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:09:48,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:09:48,819 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:09:48,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [161108708] [2020-12-09 10:09:48,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:09:48,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 10:09:48,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718334237] [2020-12-09 10:09:48,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 10:09:48,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:09:48,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 10:09:48,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 10:09:48,844 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 2 states. [2020-12-09 10:09:48,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:09:48,861 INFO L93 Difference]: Finished difference Result 124 states and 185 transitions. [2020-12-09 10:09:48,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 10:09:48,862 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-12-09 10:09:48,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:09:48,868 INFO L225 Difference]: With dead ends: 124 [2020-12-09 10:09:48,868 INFO L226 Difference]: Without dead ends: 61 [2020-12-09 10:09:48,870 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 10:09:48,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-12-09 10:09:48,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-12-09 10:09:48,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-12-09 10:09:48,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 84 transitions. [2020-12-09 10:09:48,897 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 84 transitions. Word has length 18 [2020-12-09 10:09:48,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:09:48,898 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 84 transitions. [2020-12-09 10:09:48,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 10:09:48,898 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 84 transitions. [2020-12-09 10:09:48,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-09 10:09:48,899 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:09:48,899 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:09:49,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 10:09:49,100 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:09:49,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:09:49,101 INFO L82 PathProgramCache]: Analyzing trace with hash -963834589, now seen corresponding path program 1 times [2020-12-09 10:09:49,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:09:49,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2053501662] [2020-12-09 10:09:49,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 10:09:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:09:49,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 10:09:49,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:09:49,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:09:49,241 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:09:49,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2053501662] [2020-12-09 10:09:49,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:09:49,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 10:09:49,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83949026] [2020-12-09 10:09:49,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:09:49,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:09:49,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:09:49,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:09:49,244 INFO L87 Difference]: Start difference. First operand 61 states and 84 transitions. Second operand 3 states. [2020-12-09 10:09:49,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:09:49,251 INFO L93 Difference]: Finished difference Result 61 states and 84 transitions. [2020-12-09 10:09:49,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:09:49,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-09 10:09:49,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:09:49,252 INFO L225 Difference]: With dead ends: 61 [2020-12-09 10:09:49,252 INFO L226 Difference]: Without dead ends: 31 [2020-12-09 10:09:49,253 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:09:49,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-12-09 10:09:49,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-12-09 10:09:49,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-09 10:09:49,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2020-12-09 10:09:49,257 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 43 transitions. Word has length 19 [2020-12-09 10:09:49,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:09:49,257 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 43 transitions. [2020-12-09 10:09:49,257 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:09:49,257 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2020-12-09 10:09:49,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-09 10:09:49,258 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:09:49,258 INFO L422 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] [2020-12-09 10:09:49,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 10:09:49,462 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:09:49,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:09:49,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1411810197, now seen corresponding path program 1 times [2020-12-09 10:09:49,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:09:49,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1895287755] [2020-12-09 10:09:49,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 10:09:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:09:49,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 10:09:49,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:09:49,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:09:49,657 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:09:49,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1895287755] [2020-12-09 10:09:49,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:09:49,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 10:09:49,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557845664] [2020-12-09 10:09:49,658 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:09:49,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:09:49,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:09:49,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:09:49,659 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. Second operand 3 states. [2020-12-09 10:09:49,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:09:49,692 INFO L93 Difference]: Finished difference Result 81 states and 117 transitions. [2020-12-09 10:09:49,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:09:49,692 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-09 10:09:49,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:09:49,693 INFO L225 Difference]: With dead ends: 81 [2020-12-09 10:09:49,693 INFO L226 Difference]: Without dead ends: 56 [2020-12-09 10:09:49,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:09:49,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-12-09 10:09:49,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52. [2020-12-09 10:09:49,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-09 10:09:49,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 75 transitions. [2020-12-09 10:09:49,703 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 75 transitions. Word has length 24 [2020-12-09 10:09:49,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:09:49,703 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 75 transitions. [2020-12-09 10:09:49,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:09:49,704 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions. [2020-12-09 10:09:49,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-09 10:09:49,704 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:09:49,705 INFO L422 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] [2020-12-09 10:09:49,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 10:09:49,906 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:09:49,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:09:49,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1755761006, now seen corresponding path program 1 times [2020-12-09 10:09:49,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:09:49,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1301428536] [2020-12-09 10:09:49,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-09 10:09:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:09:50,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 10:09:50,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:09:50,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:09:50,161 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:09:50,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1301428536] [2020-12-09 10:09:50,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:09:50,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 10:09:50,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547322197] [2020-12-09 10:09:50,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 10:09:50,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:09:50,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 10:09:50,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 10:09:50,164 INFO L87 Difference]: Start difference. First operand 52 states and 75 transitions. Second operand 5 states. [2020-12-09 10:09:50,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:09:50,269 INFO L93 Difference]: Finished difference Result 264 states and 404 transitions. [2020-12-09 10:09:50,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 10:09:50,270 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-12-09 10:09:50,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:09:50,272 INFO L225 Difference]: With dead ends: 264 [2020-12-09 10:09:50,273 INFO L226 Difference]: Without dead ends: 218 [2020-12-09 10:09:50,273 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-09 10:09:50,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-12-09 10:09:50,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 92. [2020-12-09 10:09:50,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-12-09 10:09:50,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 131 transitions. [2020-12-09 10:09:50,293 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 131 transitions. Word has length 24 [2020-12-09 10:09:50,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:09:50,293 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 131 transitions. [2020-12-09 10:09:50,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 10:09:50,293 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 131 transitions. [2020-12-09 10:09:50,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-09 10:09:50,294 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:09:50,294 INFO L422 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] [2020-12-09 10:09:50,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 10:09:50,496 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:09:50,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:09:50,497 INFO L82 PathProgramCache]: Analyzing trace with hash 120698128, now seen corresponding path program 1 times [2020-12-09 10:09:50,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:09:50,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583543425] [2020-12-09 10:09:50,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-09 10:09:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 10:09:51,677 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 10:09:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 10:09:52,722 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 10:09:52,844 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-12-09 10:09:52,845 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 10:09:53,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 10:09:53,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:09:53 BoogieIcfgContainer [2020-12-09 10:09:53,143 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 10:09:53,144 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 10:09:53,144 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 10:09:53,144 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 10:09:53,145 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:09:48" (3/4) ... [2020-12-09 10:09:53,146 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-09 10:09:53,209 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8ae12dc2-6c6e-4d89-918e-27633d47bb50/bin/utaipan/witness.graphml [2020-12-09 10:09:53,209 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 10:09:53,210 INFO L168 Benchmark]: Toolchain (without parser) took 6710.82 ms. Allocated memory was 67.1 MB in the beginning and 107.0 MB in the end (delta: 39.8 MB). Free memory was 49.8 MB in the beginning and 81.7 MB in the end (delta: -32.0 MB). Peak memory consumption was 49.4 MB. Max. memory is 16.1 GB. [2020-12-09 10:09:53,210 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 67.1 MB. Free memory is still 49.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:09:53,210 INFO L168 Benchmark]: CACSL2BoogieTranslator took 426.42 ms. Allocated memory is still 67.1 MB. Free memory was 49.6 MB in the beginning and 36.0 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 10:09:53,211 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.29 ms. Allocated memory is still 67.1 MB. Free memory was 36.0 MB in the beginning and 33.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 10:09:53,211 INFO L168 Benchmark]: Boogie Preprocessor took 46.90 ms. Allocated memory was 67.1 MB in the beginning and 88.1 MB in the end (delta: 21.0 MB). Free memory was 33.1 MB in the beginning and 70.5 MB in the end (delta: -37.4 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. [2020-12-09 10:09:53,211 INFO L168 Benchmark]: RCFGBuilder took 1549.49 ms. Allocated memory is still 88.1 MB. Free memory was 70.5 MB in the beginning and 68.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. [2020-12-09 10:09:53,212 INFO L168 Benchmark]: TraceAbstraction took 4565.31 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 68.4 MB in the beginning and 49.0 MB in the end (delta: 19.4 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. [2020-12-09 10:09:53,212 INFO L168 Benchmark]: Witness Printer took 64.96 ms. Allocated memory is still 107.0 MB. Free memory was 49.0 MB in the beginning and 81.7 MB in the end (delta: -32.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 10:09:53,214 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 67.1 MB. Free memory is still 49.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 426.42 ms. Allocated memory is still 67.1 MB. Free memory was 49.6 MB in the beginning and 36.0 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.29 ms. Allocated memory is still 67.1 MB. Free memory was 36.0 MB in the beginning and 33.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.90 ms. Allocated memory was 67.1 MB in the beginning and 88.1 MB in the end (delta: 21.0 MB). Free memory was 33.1 MB in the beginning and 70.5 MB in the end (delta: -37.4 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1549.49 ms. Allocated memory is still 88.1 MB. Free memory was 70.5 MB in the beginning and 68.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4565.31 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 68.4 MB in the beginning and 49.0 MB in the end (delta: 19.4 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. * Witness Printer took 64.96 ms. Allocated memory is still 107.0 MB. Free memory was 49.0 MB in the beginning and 81.7 MB in the end (delta: -32.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 635]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L297] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L532] int cleanupTimeShifts = 4; [L679] int pumpRunning = 0; [L680] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L608] int retValue_acc ; [L609] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L523] int retValue_acc ; [L526] retValue_acc = 1 [L527] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L615] tmp = valid_product() [L617] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L810] int splverifierCounter ; [L811] int tmp ; [L812] int tmp___0 ; [L813] int tmp___1 ; [L814] int tmp___2 ; [L817] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L819] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L821] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L827] tmp = __VERIFIER_nondet_int() [L829] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L837] tmp___0 = __VERIFIER_nondet_int() [L839] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L847] tmp___2 = __VERIFIER_nondet_int() [L849] COND TRUE \read(tmp___2) [L804] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L686] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L693] COND TRUE \read(systemActive) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L642] int tmp ; [L643] int tmp___0 ; [L644] int tmp___1 ; [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L648] tmp = isMethaneLevelCritical() [L650] COND FALSE !(\read(tmp)) [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L654] tmp___0 = getWaterLevel() [L656] COND TRUE tmp___0 == 2 [L741] int retValue_acc ; [L744] retValue_acc = pumpRunning [L745] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L658] tmp___1 = isPumpRunning() [L660] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L635] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 65 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 238 SDtfs, 231 SDslu, 196 SDs, 0 SdLazy, 39 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 130 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 3675 SizeOfPredicates, 4 NumberOfNonLiveVariables, 791 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...