./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/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 3db1272a61775d34f69f5bded6b264e1f3c0c6e0 ............................................................................................................................................ 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_bf81f60d-d46f-4e12-9d40-008469f56fde/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/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 3db1272a61775d34f69f5bded6b264e1f3c0c6e0 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-a4ecdab [2020-11-28 07:38:54,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:38:54,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:38:54,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:38:54,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:38:54,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:38:54,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:38:54,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:38:54,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:38:54,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:38:54,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:38:54,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:38:54,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:38:54,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:38:54,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:38:54,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:38:54,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:38:54,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:38:54,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:38:54,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:38:54,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:38:54,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:38:54,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:38:54,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:38:54,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:38:54,273 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:38:54,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:38:54,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:38:54,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:38:54,279 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:38:54,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:38:54,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:38:54,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:38:54,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:38:54,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:38:54,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:38:54,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:38:54,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:38:54,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:38:54,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:38:54,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:38:54,297 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:38:54,349 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:38:54,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:38:54,352 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:38:54,352 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:38:54,352 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:38:54,353 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:38:54,353 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:38:54,353 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:38:54,353 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:38:54,354 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:38:54,355 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:38:54,356 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:38:54,356 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:38:54,356 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:38:54,357 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:38:54,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:38:54,359 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:38:54,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:38:54,359 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:38:54,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:38:54,360 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:38:54,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:38:54,361 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:38:54,361 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:38:54,361 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:38:54,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:38:54,362 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:38:54,362 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:38:54,362 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:38:54,365 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:38:54,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:38:54,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:38:54,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:38:54,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:38:54,367 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:38:54,367 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:38:54,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:38:54,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:38:54,368 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:38:54,368 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:38:54,368 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_bf81f60d-d46f-4e12-9d40-008469f56fde/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3db1272a61775d34f69f5bded6b264e1f3c0c6e0 [2020-11-28 07:38:54,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:38:54,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:38:54,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:38:54,702 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:38:54,709 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:38:54,710 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2020-11-28 07:38:54,819 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/bin/utaipan/data/7bda320b8/3cc241f612a24b73ac2ee6c9fe526de8/FLAG189173780 [2020-11-28 07:38:55,442 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:38:55,443 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2020-11-28 07:38:55,461 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/bin/utaipan/data/7bda320b8/3cc241f612a24b73ac2ee6c9fe526de8/FLAG189173780 [2020-11-28 07:38:55,726 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/bin/utaipan/data/7bda320b8/3cc241f612a24b73ac2ee6c9fe526de8 [2020-11-28 07:38:55,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:38:55,731 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:38:55,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:38:55,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:38:55,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:38:55,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:38:55" (1/1) ... [2020-11-28 07:38:55,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a233d1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:55, skipping insertion in model container [2020-11-28 07:38:55,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:38:55" (1/1) ... [2020-11-28 07:38:55,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:38:55,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:38:56,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:38:56,201 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) [2020-11-28 07:38:56,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@164f15c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:56, skipping insertion in model container [2020-11-28 07:38:56,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:38:56,203 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-28 07:38:56,205 INFO L168 Benchmark]: Toolchain (without parser) took 473.30 ms. Allocated memory is still 100.7 MB. Free memory was 71.6 MB in the beginning and 74.7 MB in the end (delta: -3.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:56,206 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 100.7 MB. Free memory is still 57.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:38:56,209 INFO L168 Benchmark]: CACSL2BoogieTranslator took 470.11 ms. Allocated memory is still 100.7 MB. Free memory was 71.3 MB in the beginning and 74.7 MB in the end (delta: -3.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:56,211 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 100.7 MB. Free memory is still 57.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 470.11 ms. Allocated memory is still 100.7 MB. Free memory was 71.3 MB in the beginning and 74.7 MB in the end (delta: -3.4 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: 70]: 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-a4ecdab [2020-11-28 07:38:58,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:38:58,904 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:38:58,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:38:58,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:38:58,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:38:58,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:38:58,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:38:58,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:38:58,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:38:58,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:38:58,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:38:58,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:38:58,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:38:59,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:38:59,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:38:59,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:38:59,008 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:38:59,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:38:59,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:38:59,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:38:59,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:38:59,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:38:59,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:38:59,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:38:59,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:38:59,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:38:59,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:38:59,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:38:59,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:38:59,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:38:59,056 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:38:59,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:38:59,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:38:59,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:38:59,060 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:38:59,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:38:59,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:38:59,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:38:59,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:38:59,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:38:59,066 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-28 07:38:59,113 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:38:59,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:38:59,122 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:38:59,123 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:38:59,123 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:38:59,123 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:38:59,124 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:38:59,124 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:38:59,124 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:38:59,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:38:59,127 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:38:59,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:38:59,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:38:59,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:38:59,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:38:59,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:38:59,128 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:38:59,129 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 07:38:59,129 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 07:38:59,129 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:38:59,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:38:59,129 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:38:59,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:38:59,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:38:59,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 07:38:59,130 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:38:59,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:38:59,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:38:59,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:38:59,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:38:59,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:38:59,132 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-28 07:38:59,132 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 07:38:59,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:38:59,133 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:38:59,133 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:38:59,133 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_bf81f60d-d46f-4e12-9d40-008469f56fde/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3db1272a61775d34f69f5bded6b264e1f3c0c6e0 [2020-11-28 07:38:59,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:38:59,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:38:59,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:38:59,558 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:38:59,558 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:38:59,559 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2020-11-28 07:38:59,637 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/bin/utaipan/data/4e466572b/e5d011f0d85349cabee1dee829834997/FLAG53b8fdf75 [2020-11-28 07:39:00,328 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:39:00,329 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2020-11-28 07:39:00,345 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/bin/utaipan/data/4e466572b/e5d011f0d85349cabee1dee829834997/FLAG53b8fdf75 [2020-11-28 07:39:00,610 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/bin/utaipan/data/4e466572b/e5d011f0d85349cabee1dee829834997 [2020-11-28 07:39:00,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:39:00,614 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:39:00,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:39:00,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:39:00,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:39:00,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:39:00" (1/1) ... [2020-11-28 07:39:00,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bca7243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:00, skipping insertion in model container [2020-11-28 07:39:00,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:39:00" (1/1) ... [2020-11-28 07:39:00,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:39:00,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:39:00,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:39:01,022 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-28 07:39:01,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:39:01,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:39:01,162 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:39:01,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:39:01,319 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:39:01,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:01 WrapperNode [2020-11-28 07:39:01,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:39:01,321 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:39:01,321 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:39:01,322 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:39:01,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:01" (1/1) ... [2020-11-28 07:39:01,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:01" (1/1) ... [2020-11-28 07:39:01,410 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:39:01,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:39:01,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:39:01,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:39:01,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:01" (1/1) ... [2020-11-28 07:39:01,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:01" (1/1) ... [2020-11-28 07:39:01,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:01" (1/1) ... [2020-11-28 07:39:01,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:01" (1/1) ... [2020-11-28 07:39:01,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:01" (1/1) ... [2020-11-28 07:39:01,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:01" (1/1) ... [2020-11-28 07:39:01,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:01" (1/1) ... [2020-11-28 07:39:01,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:39:01,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:39:01,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:39:01,465 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:39:01,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/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 [2020-11-28 07:39:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:39:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 07:39:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:39:01,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:39:04,089 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:39:04,089 INFO L298 CfgBuilder]: Removed 168 assume(true) statements. [2020-11-28 07:39:04,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:04 BoogieIcfgContainer [2020-11-28 07:39:04,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:39:04,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:39:04,093 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:39:04,096 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:39:04,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:39:00" (1/3) ... [2020-11-28 07:39:04,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fea63a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:39:04, skipping insertion in model container [2020-11-28 07:39:04,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:01" (2/3) ... [2020-11-28 07:39:04,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fea63a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:39:04, skipping insertion in model container [2020-11-28 07:39:04,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:04" (3/3) ... [2020-11-28 07:39:04,099 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product21.cil.c [2020-11-28 07:39:04,110 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:39:04,114 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 07:39:04,125 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 07:39:04,151 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:39:04,152 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:39:04,152 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:39:04,152 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:39:04,152 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:39:04,152 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:39:04,152 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:39:04,152 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:39:04,168 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states. [2020-11-28 07:39:04,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 07:39:04,175 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:04,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:39:04,176 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:39:04,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:04,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1329335359, now seen corresponding path program 1 times [2020-11-28 07:39:04,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:39:04,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1617309096] [2020-11-28 07:39:04,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/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 [2020-11-28 07:39:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:39:04,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-28 07:39:04,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:39:04,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:04,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:39:04,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:04,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1617309096] [2020-11-28 07:39:04,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:39:04,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 07:39:04,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127716287] [2020-11-28 07:39:04,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:39:04,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:39:04,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:39:04,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:39:04,540 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 2 states. [2020-11-28 07:39:04,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:39:04,570 INFO L93 Difference]: Finished difference Result 219 states and 326 transitions. [2020-11-28 07:39:04,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:39:04,572 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-28 07:39:04,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:39:04,582 INFO L225 Difference]: With dead ends: 219 [2020-11-28 07:39:04,583 INFO L226 Difference]: Without dead ends: 107 [2020-11-28 07:39:04,586 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:39:04,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-11-28 07:39:04,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-11-28 07:39:04,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-11-28 07:39:04,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 153 transitions. [2020-11-28 07:39:04,628 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 153 transitions. Word has length 18 [2020-11-28 07:39:04,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:39:04,629 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 153 transitions. [2020-11-28 07:39:04,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:39:04,629 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 153 transitions. [2020-11-28 07:39:04,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 07:39:04,631 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:04,631 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:39:04,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 07:39:04,849 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:39:04,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:04,850 INFO L82 PathProgramCache]: Analyzing trace with hash -567252020, now seen corresponding path program 1 times [2020-11-28 07:39:04,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:39:04,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [310732986] [2020-11-28 07:39:04,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/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 [2020-11-28 07:39:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:39:05,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 07:39:05,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:39:05,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:05,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:39:05,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:05,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [310732986] [2020-11-28 07:39:05,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:39:05,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-28 07:39:05,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990397898] [2020-11-28 07:39:05,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:39:05,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:39:05,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:39:05,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:39:05,116 INFO L87 Difference]: Start difference. First operand 107 states and 153 transitions. Second operand 4 states. [2020-11-28 07:39:05,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:39:05,133 INFO L93 Difference]: Finished difference Result 107 states and 153 transitions. [2020-11-28 07:39:05,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:39:05,134 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-11-28 07:39:05,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:39:05,135 INFO L225 Difference]: With dead ends: 107 [2020-11-28 07:39:05,136 INFO L226 Difference]: Without dead ends: 45 [2020-11-28 07:39:05,137 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:39:05,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-28 07:39:05,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-11-28 07:39:05,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-28 07:39:05,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2020-11-28 07:39:05,148 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 19 [2020-11-28 07:39:05,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:39:05,149 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2020-11-28 07:39:05,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:39:05,149 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2020-11-28 07:39:05,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 07:39:05,152 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:05,152 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] [2020-11-28 07:39:05,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 07:39:05,370 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:39:05,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:05,371 INFO L82 PathProgramCache]: Analyzing trace with hash -458606052, now seen corresponding path program 1 times [2020-11-28 07:39:05,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:39:05,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896346044] [2020-11-28 07:39:05,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/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 [2020-11-28 07:39:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:39:05,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 07:39:05,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:39:05,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:05,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:39:05,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:05,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896346044] [2020-11-28 07:39:05,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:39:05,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-28 07:39:05,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783535128] [2020-11-28 07:39:05,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:39:05,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:39:05,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:39:05,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:39:05,598 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand 4 states. [2020-11-28 07:39:05,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:39:05,611 INFO L93 Difference]: Finished difference Result 84 states and 122 transitions. [2020-11-28 07:39:05,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:39:05,612 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-28 07:39:05,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:39:05,613 INFO L225 Difference]: With dead ends: 84 [2020-11-28 07:39:05,613 INFO L226 Difference]: Without dead ends: 45 [2020-11-28 07:39:05,614 INFO L677 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 [2020-11-28 07:39:05,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-28 07:39:05,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-11-28 07:39:05,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-28 07:39:05,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2020-11-28 07:39:05,621 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 63 transitions. Word has length 24 [2020-11-28 07:39:05,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:39:05,621 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 63 transitions. [2020-11-28 07:39:05,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:39:05,622 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 63 transitions. [2020-11-28 07:39:05,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 07:39:05,623 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:05,623 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, 1] [2020-11-28 07:39:05,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 07:39:05,842 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:39:05,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:05,842 INFO L82 PathProgramCache]: Analyzing trace with hash 708469066, now seen corresponding path program 1 times [2020-11-28 07:39:05,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:39:05,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1329227358] [2020-11-28 07:39:05,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/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 [2020-11-28 07:39:06,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:39:06,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 07:39:06,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:39:06,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:06,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:39:06,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:06,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1329227358] [2020-11-28 07:39:06,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:39:06,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-28 07:39:06,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959024749] [2020-11-28 07:39:06,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 07:39:06,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:39:06,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 07:39:06,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-28 07:39:06,180 INFO L87 Difference]: Start difference. First operand 45 states and 63 transitions. Second operand 8 states. [2020-11-28 07:39:06,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:39:06,677 INFO L93 Difference]: Finished difference Result 500 states and 749 transitions. [2020-11-28 07:39:06,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-28 07:39:06,678 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2020-11-28 07:39:06,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:39:06,687 INFO L225 Difference]: With dead ends: 500 [2020-11-28 07:39:06,687 INFO L226 Difference]: Without dead ends: 461 [2020-11-28 07:39:06,690 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-11-28 07:39:06,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2020-11-28 07:39:06,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 114. [2020-11-28 07:39:06,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-11-28 07:39:06,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 163 transitions. [2020-11-28 07:39:06,746 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 163 transitions. Word has length 26 [2020-11-28 07:39:06,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:39:06,748 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 163 transitions. [2020-11-28 07:39:06,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 07:39:06,748 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 163 transitions. [2020-11-28 07:39:06,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 07:39:06,755 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:06,755 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, 1, 1] [2020-11-28 07:39:06,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-28 07:39:06,969 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:39:06,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:06,969 INFO L82 PathProgramCache]: Analyzing trace with hash 99432520, now seen corresponding path program 1 times [2020-11-28 07:39:06,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:39:06,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110565960] [2020-11-28 07:39:06,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/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 [2020-11-28 07:39:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:39:08,157 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:39:09,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:39:09,059 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:39:09,222 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-28 07:39:09,222 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:39:09,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-28 07:39:09,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:39:09 BoogieIcfgContainer [2020-11-28 07:39:09,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:39:09,571 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:39:09,572 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:39:09,572 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:39:09,573 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:04" (3/4) ... [2020-11-28 07:39:09,575 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 07:39:09,727 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bf81f60d-d46f-4e12-9d40-008469f56fde/bin/utaipan/witness.graphml [2020-11-28 07:39:09,727 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:39:09,736 INFO L168 Benchmark]: Toolchain (without parser) took 9114.17 ms. Allocated memory was 60.8 MB in the beginning and 100.7 MB in the end (delta: 39.8 MB). Free memory was 38.0 MB in the beginning and 55.2 MB in the end (delta: -17.2 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:09,737 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 60.8 MB. Free memory was 42.1 MB in the beginning and 42.0 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:39:09,738 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.46 ms. Allocated memory is still 60.8 MB. Free memory was 37.8 MB in the beginning and 28.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:09,740 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.69 ms. Allocated memory was 60.8 MB in the beginning and 83.9 MB in the end (delta: 23.1 MB). Free memory was 28.2 MB in the beginning and 64.2 MB in the end (delta: -36.0 MB). Peak memory consumption was 4.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:09,741 INFO L168 Benchmark]: Boogie Preprocessor took 52.23 ms. Allocated memory is still 83.9 MB. Free memory was 64.2 MB in the beginning and 61.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:09,742 INFO L168 Benchmark]: RCFGBuilder took 2626.74 ms. Allocated memory is still 83.9 MB. Free memory was 61.6 MB in the beginning and 56.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 34.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:09,746 INFO L168 Benchmark]: TraceAbstraction took 5478.19 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 56.7 MB in the beginning and 65.7 MB in the end (delta: -9.0 MB). Peak memory consumption was 44.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:09,747 INFO L168 Benchmark]: Witness Printer took 156.09 ms. Allocated memory is still 100.7 MB. Free memory was 65.7 MB in the beginning and 55.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:09,750 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 60.8 MB. Free memory was 42.1 MB in the beginning and 42.0 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 704.46 ms. Allocated memory is still 60.8 MB. Free memory was 37.8 MB in the beginning and 28.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 89.69 ms. Allocated memory was 60.8 MB in the beginning and 83.9 MB in the end (delta: 23.1 MB). Free memory was 28.2 MB in the beginning and 64.2 MB in the end (delta: -36.0 MB). Peak memory consumption was 4.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.23 ms. Allocated memory is still 83.9 MB. Free memory was 64.2 MB in the beginning and 61.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2626.74 ms. Allocated memory is still 83.9 MB. Free memory was 61.6 MB in the beginning and 56.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 34.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5478.19 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 56.7 MB in the beginning and 65.7 MB in the end (delta: -9.0 MB). Peak memory consumption was 44.1 MB. Max. memory is 16.1 GB. * Witness Printer took 156.09 ms. Allocated memory is still 100.7 MB. Free memory was 65.7 MB in the beginning and 55.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L417] int pumpRunning = 0; [L418] int systemActive = 1; [L674] int waterLevel = 1; [L675] int methaneLevelCritical = 0; [L763] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L839] int retValue_acc ; [L840] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L922] int retValue_acc ; [L925] retValue_acc = 1 [L926] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L846] tmp = valid_product() [L848] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L609] int splverifierCounter ; [L610] int tmp ; [L611] int tmp___0 ; [L612] int tmp___1 ; [L613] int tmp___2 ; [L616] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L618] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L620] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L626] tmp = __VERIFIER_nondet_int() [L628] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L692] COND TRUE waterLevel < 2 [L693] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L636] tmp___0 = __VERIFIER_nondet_int() [L638] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L646] tmp___2 = __VERIFIER_nondet_int() [L648] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L425] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L432] COND TRUE \read(systemActive) [L480] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L483] COND FALSE !(\read(pumpRunning)) [L454] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L457] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L863] int tmp ; [L864] int tmp___0 ; [L865] int tmp___1 ; [L713] int retValue_acc ; [L716] retValue_acc = methaneLevelCritical [L717] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L869] tmp = isMethaneLevelCritical() [L871] COND FALSE !(\read(tmp)) [L745] int retValue_acc ; [L748] retValue_acc = waterLevel [L749] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L875] tmp___0 = getWaterLevel() [L877] COND TRUE tmp___0 == 2 [L532] int retValue_acc ; [L535] retValue_acc = pumpRunning [L536] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L879] tmp___1 = isPumpRunning() [L881] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product21.cil.c", 3, "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, 114 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 386 SDtfs, 1025 SDslu, 597 SDs, 0 SdLazy, 106 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 347 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 166 ConstructedInterpolants, 0 QuantifiedInterpolants, 10843 SizeOfPredicates, 6 NumberOfNonLiveVariables, 791 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...