./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_25f775a9-10eb-466a-8d20-055cc3645c8c/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/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_25f775a9-10eb-466a-8d20-055cc3645c8c/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/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 [2020-11-22 12:55:05,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:55:05,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:55:05,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:55:05,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:55:05,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:55:05,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:55:05,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:55:05,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:55:05,310 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:55:05,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:55:05,312 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:55:05,312 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:55:05,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:55:05,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:55:05,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:55:05,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:55:05,318 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:55:05,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:55:05,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:55:05,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:55:05,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:55:05,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:55:05,343 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:55:05,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:55:05,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:55:05,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:55:05,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:55:05,350 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:55:05,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:55:05,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:55:05,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:55:05,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:55:05,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:55:05,357 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:55:05,358 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:55:05,359 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:55:05,359 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:55:05,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:55:05,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:55:05,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:55:05,364 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:55:05,413 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:55:05,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:55:05,415 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:55:05,415 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:55:05,415 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:55:05,415 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:55:05,416 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:55:05,416 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:55:05,416 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:55:05,416 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:55:05,417 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:55:05,418 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:55:05,418 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:55:05,418 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:55:05,418 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:55:05,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:55:05,419 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:55:05,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:55:05,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:55:05,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:55:05,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:55:05,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:55:05,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:55:05,421 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:55:05,421 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:55:05,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:55:05,421 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:55:05,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:55:05,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:55:05,426 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:55:05,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:55:05,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:55:05,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:55:05,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:55:05,428 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:55:05,428 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:55:05,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:55:05,429 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:55:05,429 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:55:05,429 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:55:05,429 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_25f775a9-10eb-466a-8d20-055cc3645c8c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3db1272a61775d34f69f5bded6b264e1f3c0c6e0 [2020-11-22 12:55:05,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:55:05,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:55:05,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:55:05,763 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:55:05,765 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:55:05,766 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2020-11-22 12:55:05,845 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/bin/utaipan/data/76db0a8fb/599f3d1552be44a9af6aedcd86603edb/FLAG42138f173 [2020-11-22 12:55:06,385 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:55:06,386 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2020-11-22 12:55:06,402 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/bin/utaipan/data/76db0a8fb/599f3d1552be44a9af6aedcd86603edb/FLAG42138f173 [2020-11-22 12:55:06,715 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/bin/utaipan/data/76db0a8fb/599f3d1552be44a9af6aedcd86603edb [2020-11-22 12:55:06,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:55:06,718 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:55:06,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:55:06,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:55:06,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:55:06,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:55:06" (1/1) ... [2020-11-22 12:55:06,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a712219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:06, skipping insertion in model container [2020-11-22 12:55:06,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:55:06" (1/1) ... [2020-11-22 12:55:06,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:55:06,783 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:55:07,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:55:07,157 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) [2020-11-22 12:55:07,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7d91f733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:07, skipping insertion in model container [2020-11-22 12:55:07,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:55:07,159 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 12:55:07,161 INFO L168 Benchmark]: Toolchain (without parser) took 441.07 ms. Allocated memory is still 100.7 MB. Free memory was 70.2 MB in the beginning and 75.1 MB in the end (delta: -4.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:55:07,162 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 100.7 MB. Free memory was 59.9 MB in the beginning and 59.9 MB in the end (delta: 44.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:55:07,163 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.71 ms. Allocated memory is still 100.7 MB. Free memory was 69.8 MB in the beginning and 75.1 MB in the end (delta: -5.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:55:07,164 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 100.7 MB. Free memory was 59.9 MB in the beginning and 59.9 MB in the end (delta: 44.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 438.71 ms. Allocated memory is still 100.7 MB. Free memory was 69.8 MB in the beginning and 75.1 MB in the end (delta: -5.3 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 [2020-11-22 12:55:09,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:55:09,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:55:09,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:55:09,642 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:55:09,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:55:09,646 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:55:09,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:55:09,655 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:55:09,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:55:09,662 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:55:09,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:55:09,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:55:09,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:55:09,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:55:09,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:55:09,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:55:09,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:55:09,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:55:09,690 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:55:09,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:55:09,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:55:09,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:55:09,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:55:09,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:55:09,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:55:09,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:55:09,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:55:09,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:55:09,741 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:55:09,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:55:09,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:55:09,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:55:09,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:55:09,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:55:09,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:55:09,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:55:09,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:55:09,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:55:09,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:55:09,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:55:09,754 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 12:55:09,799 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:55:09,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:55:09,802 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:55:09,803 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:55:09,803 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:55:09,803 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:55:09,803 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:55:09,804 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:55:09,804 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:55:09,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:55:09,806 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:55:09,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:55:09,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:55:09,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:55:09,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:55:09,807 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:55:09,807 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:55:09,808 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 12:55:09,808 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 12:55:09,808 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:55:09,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:55:09,808 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:55:09,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:55:09,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:55:09,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 12:55:09,809 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:55:09,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:55:09,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:55:09,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:55:09,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:55:09,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:55:09,810 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 12:55:09,811 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 12:55:09,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:55:09,811 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:55:09,811 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:55:09,812 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_25f775a9-10eb-466a-8d20-055cc3645c8c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3db1272a61775d34f69f5bded6b264e1f3c0c6e0 [2020-11-22 12:55:10,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:55:10,337 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:55:10,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:55:10,342 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:55:10,348 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:55:10,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2020-11-22 12:55:10,439 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/bin/utaipan/data/4147cab77/4f8624c1236e48bb804508a0900901da/FLAG6d36e57df [2020-11-22 12:55:11,019 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:55:11,020 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2020-11-22 12:55:11,041 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/bin/utaipan/data/4147cab77/4f8624c1236e48bb804508a0900901da/FLAG6d36e57df [2020-11-22 12:55:11,275 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/bin/utaipan/data/4147cab77/4f8624c1236e48bb804508a0900901da [2020-11-22 12:55:11,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:55:11,281 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:55:11,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:55:11,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:55:11,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:55:11,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:55:11" (1/1) ... [2020-11-22 12:55:11,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b4a9f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:11, skipping insertion in model container [2020-11-22 12:55:11,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:55:11" (1/1) ... [2020-11-22 12:55:11,304 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:55:11,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:55:11,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:55:11,734 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 12:55:11,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:55:11,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:55:11,816 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:55:11,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:55:11,970 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:55:11,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:11 WrapperNode [2020-11-22 12:55:11,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:55:11,972 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:55:11,973 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:55:11,973 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:55:11,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:11" (1/1) ... [2020-11-22 12:55:12,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:11" (1/1) ... [2020-11-22 12:55:12,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:55:12,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:55:12,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:55:12,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:55:12,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:11" (1/1) ... [2020-11-22 12:55:12,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:11" (1/1) ... [2020-11-22 12:55:12,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:11" (1/1) ... [2020-11-22 12:55:12,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:11" (1/1) ... [2020-11-22 12:55:12,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:11" (1/1) ... [2020-11-22 12:55:12,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:11" (1/1) ... [2020-11-22 12:55:12,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:11" (1/1) ... [2020-11-22 12:55:12,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:55:12,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:55:12,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:55:12,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:55:12,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/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 [2020-11-22 12:55:12,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:55:12,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 12:55:12,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:55:12,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:55:14,974 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:55:14,974 INFO L298 CfgBuilder]: Removed 168 assume(true) statements. [2020-11-22 12:55:14,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:55:14 BoogieIcfgContainer [2020-11-22 12:55:14,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:55:14,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:55:14,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:55:14,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:55:14,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:55:11" (1/3) ... [2020-11-22 12:55:14,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583a9c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:55:14, skipping insertion in model container [2020-11-22 12:55:14,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:11" (2/3) ... [2020-11-22 12:55:14,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583a9c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:55:14, skipping insertion in model container [2020-11-22 12:55:14,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:55:14" (3/3) ... [2020-11-22 12:55:14,984 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product21.cil.c [2020-11-22 12:55:14,994 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:55:14,999 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 12:55:15,010 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 12:55:15,034 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:55:15,034 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:55:15,034 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:55:15,034 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:55:15,034 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:55:15,035 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:55:15,035 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:55:15,035 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:55:15,049 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states. [2020-11-22 12:55:15,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 12:55:15,055 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:55:15,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:55:15,056 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:55:15,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:55:15,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1329335359, now seen corresponding path program 1 times [2020-11-22 12:55:15,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:55:15,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217036129] [2020-11-22 12:55:15,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/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 [2020-11-22 12:55:15,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:55:15,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 12:55:15,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:55:15,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:55:15,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:55:15,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:55:15,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217036129] [2020-11-22 12:55:15,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:55:15,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 12:55:15,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924155589] [2020-11-22 12:55:15,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:55:15,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:55:15,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:55:15,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:55:15,367 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 2 states. [2020-11-22 12:55:15,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:55:15,402 INFO L93 Difference]: Finished difference Result 219 states and 326 transitions. [2020-11-22 12:55:15,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:55:15,403 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-22 12:55:15,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:55:15,416 INFO L225 Difference]: With dead ends: 219 [2020-11-22 12:55:15,416 INFO L226 Difference]: Without dead ends: 107 [2020-11-22 12:55:15,420 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 [2020-11-22 12:55:15,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-11-22 12:55:15,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-11-22 12:55:15,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-11-22 12:55:15,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 153 transitions. [2020-11-22 12:55:15,464 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 153 transitions. Word has length 18 [2020-11-22 12:55:15,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:55:15,464 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 153 transitions. [2020-11-22 12:55:15,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:55:15,464 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 153 transitions. [2020-11-22 12:55:15,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-22 12:55:15,466 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:55:15,466 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:55:15,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 12:55:15,690 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:55:15,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:55:15,691 INFO L82 PathProgramCache]: Analyzing trace with hash -567252020, now seen corresponding path program 1 times [2020-11-22 12:55:15,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:55:15,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446388508] [2020-11-22 12:55:15,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/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 [2020-11-22 12:55:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:55:15,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:55:15,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:55:15,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:55:15,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:55:15,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:55:15,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [446388508] [2020-11-22 12:55:15,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:55:15,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 12:55:15,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433942030] [2020-11-22 12:55:15,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:55:15,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:55:15,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:55:15,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:55:15,926 INFO L87 Difference]: Start difference. First operand 107 states and 153 transitions. Second operand 4 states. [2020-11-22 12:55:15,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:55:15,942 INFO L93 Difference]: Finished difference Result 107 states and 153 transitions. [2020-11-22 12:55:15,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:55:15,943 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-11-22 12:55:15,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:55:15,944 INFO L225 Difference]: With dead ends: 107 [2020-11-22 12:55:15,944 INFO L226 Difference]: Without dead ends: 45 [2020-11-22 12:55:15,945 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 [2020-11-22 12:55:15,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-22 12:55:15,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-11-22 12:55:15,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-22 12:55:15,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2020-11-22 12:55:15,951 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 19 [2020-11-22 12:55:15,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:55:15,952 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2020-11-22 12:55:15,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:55:15,952 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2020-11-22 12:55:15,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 12:55:15,953 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:55:15,953 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] [2020-11-22 12:55:16,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 12:55:16,176 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:55:16,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:55:16,177 INFO L82 PathProgramCache]: Analyzing trace with hash -458606052, now seen corresponding path program 1 times [2020-11-22 12:55:16,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:55:16,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861890084] [2020-11-22 12:55:16,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/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 [2020-11-22 12:55:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:55:16,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:55:16,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:55:16,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:55:16,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:55:16,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:55:16,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [861890084] [2020-11-22 12:55:16,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:55:16,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 12:55:16,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042573901] [2020-11-22 12:55:16,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:55:16,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:55:16,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:55:16,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:55:16,428 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand 4 states. [2020-11-22 12:55:16,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:55:16,448 INFO L93 Difference]: Finished difference Result 84 states and 122 transitions. [2020-11-22 12:55:16,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:55:16,452 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-22 12:55:16,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:55:16,453 INFO L225 Difference]: With dead ends: 84 [2020-11-22 12:55:16,455 INFO L226 Difference]: Without dead ends: 45 [2020-11-22 12:55:16,456 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 [2020-11-22 12:55:16,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-22 12:55:16,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-11-22 12:55:16,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-22 12:55:16,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2020-11-22 12:55:16,466 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 63 transitions. Word has length 24 [2020-11-22 12:55:16,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:55:16,467 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 63 transitions. [2020-11-22 12:55:16,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:55:16,467 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 63 transitions. [2020-11-22 12:55:16,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-22 12:55:16,470 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:55:16,470 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] [2020-11-22 12:55:16,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 12:55:16,683 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:55:16,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:55:16,683 INFO L82 PathProgramCache]: Analyzing trace with hash 708469066, now seen corresponding path program 1 times [2020-11-22 12:55:16,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:55:16,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2143800610] [2020-11-22 12:55:16,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/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 [2020-11-22 12:55:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:55:16,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:55:16,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:55:17,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:55:17,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:55:17,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:55:17,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2143800610] [2020-11-22 12:55:17,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:55:17,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-22 12:55:17,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914015764] [2020-11-22 12:55:17,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 12:55:17,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:55:17,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 12:55:17,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 12:55:17,090 INFO L87 Difference]: Start difference. First operand 45 states and 63 transitions. Second operand 8 states. [2020-11-22 12:55:17,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:55:17,594 INFO L93 Difference]: Finished difference Result 500 states and 749 transitions. [2020-11-22 12:55:17,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-22 12:55:17,595 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2020-11-22 12:55:17,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:55:17,601 INFO L225 Difference]: With dead ends: 500 [2020-11-22 12:55:17,601 INFO L226 Difference]: Without dead ends: 461 [2020-11-22 12:55:17,604 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 [2020-11-22 12:55:17,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2020-11-22 12:55:17,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 114. [2020-11-22 12:55:17,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-11-22 12:55:17,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 163 transitions. [2020-11-22 12:55:17,659 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 163 transitions. Word has length 26 [2020-11-22 12:55:17,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:55:17,660 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 163 transitions. [2020-11-22 12:55:17,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 12:55:17,660 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 163 transitions. [2020-11-22 12:55:17,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-22 12:55:17,666 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:55:17,666 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] [2020-11-22 12:55:17,886 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 12:55:17,886 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:55:17,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:55:17,887 INFO L82 PathProgramCache]: Analyzing trace with hash 99432520, now seen corresponding path program 1 times [2020-11-22 12:55:17,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:55:17,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1616735802] [2020-11-22 12:55:17,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/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 [2020-11-22 12:55:19,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:55:19,001 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:55:19,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:55:19,886 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:55:20,003 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 12:55:20,003 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:55:20,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 12:55:20,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:55:20 BoogieIcfgContainer [2020-11-22 12:55:20,361 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:55:20,361 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:55:20,362 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:55:20,362 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:55:20,363 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:55:14" (3/4) ... [2020-11-22 12:55:20,365 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 12:55:20,503 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_25f775a9-10eb-466a-8d20-055cc3645c8c/bin/utaipan/witness.graphml [2020-11-22 12:55:20,504 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:55:20,511 INFO L168 Benchmark]: Toolchain (without parser) took 9224.35 ms. Allocated memory was 62.9 MB in the beginning and 88.1 MB in the end (delta: 25.2 MB). Free memory was 42.7 MB in the beginning and 37.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 31.8 MB. Max. memory is 16.1 GB. [2020-11-22 12:55:20,512 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 62.9 MB. Free memory was 44.2 MB in the beginning and 44.1 MB in the end (delta: 32.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:55:20,513 INFO L168 Benchmark]: CACSL2BoogieTranslator took 687.11 ms. Allocated memory is still 62.9 MB. Free memory was 42.5 MB in the beginning and 29.5 MB in the end (delta: 13.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2020-11-22 12:55:20,514 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.63 ms. Allocated memory is still 62.9 MB. Free memory was 29.5 MB in the beginning and 44.2 MB in the end (delta: -14.7 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2020-11-22 12:55:20,514 INFO L168 Benchmark]: Boogie Preprocessor took 49.20 ms. Allocated memory is still 62.9 MB. Free memory was 44.2 MB in the beginning and 41.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:55:20,515 INFO L168 Benchmark]: RCFGBuilder took 2860.38 ms. Allocated memory was 62.9 MB in the beginning and 88.1 MB in the end (delta: 25.2 MB). Free memory was 41.3 MB in the beginning and 68.4 MB in the end (delta: -27.0 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2020-11-22 12:55:20,519 INFO L168 Benchmark]: TraceAbstraction took 5383.30 ms. Allocated memory is still 88.1 MB. Free memory was 67.7 MB in the beginning and 48.5 MB in the end (delta: 19.2 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.1 GB. [2020-11-22 12:55:20,519 INFO L168 Benchmark]: Witness Printer took 142.43 ms. Allocated memory is still 88.1 MB. Free memory was 48.5 MB in the beginning and 37.6 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:55:20,521 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 62.9 MB. Free memory was 44.2 MB in the beginning and 44.1 MB in the end (delta: 32.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 687.11 ms. Allocated memory is still 62.9 MB. Free memory was 42.5 MB in the beginning and 29.5 MB in the end (delta: 13.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 92.63 ms. Allocated memory is still 62.9 MB. Free memory was 29.5 MB in the beginning and 44.2 MB in the end (delta: -14.7 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.20 ms. Allocated memory is still 62.9 MB. Free memory was 44.2 MB in the beginning and 41.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2860.38 ms. Allocated memory was 62.9 MB in the beginning and 88.1 MB in the end (delta: 25.2 MB). Free memory was 41.3 MB in the beginning and 68.4 MB in the end (delta: -27.0 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5383.30 ms. Allocated memory is still 88.1 MB. Free memory was 67.7 MB in the beginning and 48.5 MB in the end (delta: 19.2 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.1 GB. * Witness Printer took 142.43 ms. Allocated memory is still 88.1 MB. Free memory was 48.5 MB in the beginning and 37.6 MB in the end (delta: 11.0 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: 5.1s, 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, 0.3s 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 347 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 0.3s 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...