./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product36.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_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/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 0d9fe46be856096e0c78b096b76405a575c1ad90 ............................................................................................................................................ 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_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/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 0d9fe46be856096e0c78b096b76405a575c1ad90 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 13:01:59,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:01:59,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:01:59,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:01:59,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:01:59,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:01:59,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:01:59,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:01:59,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:01:59,456 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:01:59,458 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:01:59,461 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:01:59,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:01:59,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:01:59,469 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:01:59,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:01:59,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:01:59,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:01:59,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:01:59,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:01:59,494 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:01:59,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:01:59,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:01:59,498 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:01:59,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:01:59,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:01:59,503 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:01:59,505 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:01:59,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:01:59,512 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:01:59,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:01:59,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:01:59,516 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:01:59,517 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:01:59,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:01:59,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:01:59,519 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:01:59,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:01:59,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:01:59,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:01:59,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:01:59,522 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:01:59,568 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:01:59,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:01:59,569 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:01:59,569 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:01:59,570 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:01:59,570 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:01:59,570 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:01:59,570 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:01:59,570 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:01:59,570 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:01:59,571 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:01:59,572 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:01:59,572 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:01:59,572 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:01:59,572 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:01:59,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:01:59,573 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:01:59,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:01:59,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:01:59,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:01:59,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:01:59,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:01:59,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:01:59,574 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:01:59,574 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:01:59,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:01:59,575 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:01:59,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:01:59,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:01:59,577 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:01:59,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:01:59,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:01:59,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:01:59,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:01:59,578 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:01:59,578 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:01:59,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:01:59,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:01:59,578 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:01:59,579 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:01:59,579 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_afaef19d-4df1-49c5-9eb6-32aabbc98f35/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d9fe46be856096e0c78b096b76405a575c1ad90 [2020-11-22 13:01:59,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:01:59,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:01:59,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:01:59,900 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:01:59,901 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:01:59,902 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2020-11-22 13:01:59,984 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/data/e833cc4ca/28fd4c123dcb45afa395aa5b4ef20dc8/FLAG27c5cf00a [2020-11-22 13:02:00,559 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:02:00,560 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2020-11-22 13:02:00,581 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/data/e833cc4ca/28fd4c123dcb45afa395aa5b4ef20dc8/FLAG27c5cf00a [2020-11-22 13:02:00,833 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/data/e833cc4ca/28fd4c123dcb45afa395aa5b4ef20dc8 [2020-11-22 13:02:00,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:02:00,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:02:00,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:02:00,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:02:00,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:02:00,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:02:00" (1/1) ... [2020-11-22 13:02:00,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d68eee3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:00, skipping insertion in model container [2020-11-22 13:02:00,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:02:00" (1/1) ... [2020-11-22 13:02:00,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:02:00,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:02:01,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:02:01,212 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 13:02:01,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@689484b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:01, skipping insertion in model container [2020-11-22 13:02:01,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:02:01,213 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:02:01,216 INFO L168 Benchmark]: Toolchain (without parser) took 377.67 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 69.7 MB in the beginning and 97.4 MB in the end (delta: -27.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:02:01,216 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 96.5 MB. Free memory is still 54.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:02:01,217 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.52 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 69.6 MB in the beginning and 97.4 MB in the end (delta: -27.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:02:01,219 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 96.5 MB. Free memory is still 54.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 375.52 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 69.6 MB in the beginning and 97.4 MB in the end (delta: -27.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 471]: 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 13:02:03,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:02:03,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:02:03,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:02:03,504 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:02:03,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:02:03,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:02:03,510 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:02:03,512 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:02:03,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:02:03,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:02:03,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:02:03,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:02:03,529 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:02:03,531 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:02:03,532 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:02:03,533 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:02:03,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:02:03,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:02:03,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:02:03,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:02:03,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:02:03,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:02:03,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:02:03,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:02:03,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:02:03,571 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:02:03,572 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:02:03,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:02:03,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:02:03,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:02:03,575 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:02:03,576 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:02:03,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:02:03,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:02:03,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:02:03,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:02:03,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:02:03,591 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:02:03,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:02:03,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:02:03,596 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:02:03,654 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:02:03,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:02:03,656 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:02:03,656 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:02:03,657 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:02:03,657 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:02:03,657 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:02:03,657 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:02:03,657 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:02:03,659 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:02:03,660 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:02:03,660 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:02:03,660 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:02:03,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:02:03,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:02:03,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:02:03,661 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:02:03,661 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:02:03,662 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:02:03,662 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:02:03,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:02:03,662 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:02:03,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:02:03,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:02:03,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:02:03,663 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:02:03,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:02:03,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:02:03,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:02:03,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:02:03,664 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:02:03,664 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:02:03,664 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:02:03,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:02:03,665 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:02:03,665 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:02:03,665 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_afaef19d-4df1-49c5-9eb6-32aabbc98f35/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d9fe46be856096e0c78b096b76405a575c1ad90 [2020-11-22 13:02:04,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:02:04,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:02:04,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:02:04,122 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:02:04,124 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:02:04,125 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2020-11-22 13:02:04,211 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/data/c250a9678/ef446735975649c5b435d32f724f8648/FLAGf4b5f982e [2020-11-22 13:02:04,915 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:02:04,918 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2020-11-22 13:02:04,941 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/data/c250a9678/ef446735975649c5b435d32f724f8648/FLAGf4b5f982e [2020-11-22 13:02:05,186 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/data/c250a9678/ef446735975649c5b435d32f724f8648 [2020-11-22 13:02:05,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:02:05,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:02:05,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:02:05,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:02:05,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:02:05,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:02:05" (1/1) ... [2020-11-22 13:02:05,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41c73f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:05, skipping insertion in model container [2020-11-22 13:02:05,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:02:05" (1/1) ... [2020-11-22 13:02:05,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:02:05,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:02:05,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:02:05,645 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:02:05,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:02:05,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:02:05,810 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:02:05,936 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:02:05,982 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:02:05,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:05 WrapperNode [2020-11-22 13:02:05,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:02:05,985 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:02:05,986 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:02:05,986 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:02:05,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:05" (1/1) ... [2020-11-22 13:02:06,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:05" (1/1) ... [2020-11-22 13:02:06,079 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:02:06,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:02:06,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:02:06,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:02:06,089 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:05" (1/1) ... [2020-11-22 13:02:06,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:05" (1/1) ... [2020-11-22 13:02:06,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:05" (1/1) ... [2020-11-22 13:02:06,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:05" (1/1) ... [2020-11-22 13:02:06,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:05" (1/1) ... [2020-11-22 13:02:06,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:05" (1/1) ... [2020-11-22 13:02:06,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:05" (1/1) ... [2020-11-22 13:02:06,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:02:06,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:02:06,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:02:06,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:02:06,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/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 13:02:06,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:02:06,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:02:06,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:02:06,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:02:08,689 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:02:08,689 INFO L298 CfgBuilder]: Removed 108 assume(true) statements. [2020-11-22 13:02:08,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:02:08 BoogieIcfgContainer [2020-11-22 13:02:08,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:02:08,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:02:08,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:02:08,700 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:02:08,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:02:05" (1/3) ... [2020-11-22 13:02:08,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea3e966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:02:08, skipping insertion in model container [2020-11-22 13:02:08,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:05" (2/3) ... [2020-11-22 13:02:08,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea3e966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:02:08, skipping insertion in model container [2020-11-22 13:02:08,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:02:08" (3/3) ... [2020-11-22 13:02:08,705 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product36.cil.c [2020-11-22 13:02:08,716 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:02:08,721 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 13:02:08,733 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 13:02:08,773 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:02:08,773 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:02:08,774 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:02:08,774 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:02:08,774 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:02:08,774 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:02:08,774 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:02:08,775 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:02:08,791 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2020-11-22 13:02:08,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-22 13:02:08,803 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:02:08,803 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:02:08,804 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:02:08,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:02:08,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1202040542, now seen corresponding path program 1 times [2020-11-22 13:02:08,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:02:08,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490552800] [2020-11-22 13:02:08,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/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 13:02:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:02:09,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:02:09,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:02:09,087 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 13:02:09,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:02:09,093 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 13:02:09,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490552800] [2020-11-22 13:02:09,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:02:09,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:02:09,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223746167] [2020-11-22 13:02:09,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:02:09,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:02:09,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:02:09,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:02:09,116 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 2 states. [2020-11-22 13:02:09,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:02:09,143 INFO L93 Difference]: Finished difference Result 157 states and 236 transitions. [2020-11-22 13:02:09,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:02:09,145 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-22 13:02:09,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:02:09,155 INFO L225 Difference]: With dead ends: 157 [2020-11-22 13:02:09,156 INFO L226 Difference]: Without dead ends: 76 [2020-11-22 13:02:09,159 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 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 13:02:09,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-11-22 13:02:09,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-11-22 13:02:09,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-11-22 13:02:09,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 108 transitions. [2020-11-22 13:02:09,197 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 108 transitions. Word has length 16 [2020-11-22 13:02:09,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:02:09,198 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 108 transitions. [2020-11-22 13:02:09,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:02:09,198 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 108 transitions. [2020-11-22 13:02:09,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-22 13:02:09,199 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:02:09,199 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:02:09,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:02:09,409 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:02:09,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:02:09,412 INFO L82 PathProgramCache]: Analyzing trace with hash 155283645, now seen corresponding path program 1 times [2020-11-22 13:02:09,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:02:09,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188975709] [2020-11-22 13:02:09,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/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 13:02:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:02:09,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:02:09,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:02:09,655 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 13:02:09,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:02:09,670 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 13:02:09,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188975709] [2020-11-22 13:02:09,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:02:09,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:02:09,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942181199] [2020-11-22 13:02:09,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:02:09,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:02:09,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:02:09,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:02:09,673 INFO L87 Difference]: Start difference. First operand 76 states and 108 transitions. Second operand 4 states. [2020-11-22 13:02:09,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:02:09,702 INFO L93 Difference]: Finished difference Result 76 states and 108 transitions. [2020-11-22 13:02:09,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:02:09,704 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-22 13:02:09,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:02:09,707 INFO L225 Difference]: With dead ends: 76 [2020-11-22 13:02:09,707 INFO L226 Difference]: Without dead ends: 36 [2020-11-22 13:02:09,709 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 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 13:02:09,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-22 13:02:09,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-22 13:02:09,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-22 13:02:09,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2020-11-22 13:02:09,723 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 17 [2020-11-22 13:02:09,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:02:09,725 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2020-11-22 13:02:09,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:02:09,725 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2020-11-22 13:02:09,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-22 13:02:09,726 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:02:09,726 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] [2020-11-22 13:02:09,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:02:09,940 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:02:09,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:02:09,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1499295122, now seen corresponding path program 1 times [2020-11-22 13:02:09,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:02:09,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992361545] [2020-11-22 13:02:09,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/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 13:02:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:02:10,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:02:10,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:02:10,256 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 13:02:10,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:02:10,265 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 13:02:10,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [992361545] [2020-11-22 13:02:10,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:02:10,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:02:10,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402159357] [2020-11-22 13:02:10,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:02:10,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:02:10,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:02:10,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:02:10,267 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 4 states. [2020-11-22 13:02:10,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:02:10,345 INFO L93 Difference]: Finished difference Result 119 states and 175 transitions. [2020-11-22 13:02:10,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:02:10,347 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-11-22 13:02:10,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:02:10,348 INFO L225 Difference]: With dead ends: 119 [2020-11-22 13:02:10,348 INFO L226 Difference]: Without dead ends: 89 [2020-11-22 13:02:10,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:02:10,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-22 13:02:10,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 55. [2020-11-22 13:02:10,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-11-22 13:02:10,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 80 transitions. [2020-11-22 13:02:10,371 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 80 transitions. Word has length 22 [2020-11-22 13:02:10,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:02:10,372 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 80 transitions. [2020-11-22 13:02:10,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:02:10,372 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 80 transitions. [2020-11-22 13:02:10,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-22 13:02:10,373 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:02:10,374 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] [2020-11-22 13:02:10,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:02:10,590 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:02:10,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:02:10,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1870150441, now seen corresponding path program 1 times [2020-11-22 13:02:10,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:02:10,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [755333036] [2020-11-22 13:02:10,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/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 13:02:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:02:10,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:02:10,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:02:10,787 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 13:02:10,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:02:10,789 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 13:02:10,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [755333036] [2020-11-22 13:02:10,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:02:10,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 13:02:10,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000282550] [2020-11-22 13:02:10,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:02:10,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:02:10,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:02:10,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:02:10,797 INFO L87 Difference]: Start difference. First operand 55 states and 80 transitions. Second operand 3 states. [2020-11-22 13:02:10,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:02:10,875 INFO L93 Difference]: Finished difference Result 125 states and 184 transitions. [2020-11-22 13:02:10,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:02:10,876 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-11-22 13:02:10,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:02:10,877 INFO L225 Difference]: With dead ends: 125 [2020-11-22 13:02:10,877 INFO L226 Difference]: Without dead ends: 76 [2020-11-22 13:02:10,878 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:02:10,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-11-22 13:02:10,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2020-11-22 13:02:10,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-11-22 13:02:10,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2020-11-22 13:02:10,901 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 23 [2020-11-22 13:02:10,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:02:10,901 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2020-11-22 13:02:10,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:02:10,902 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2020-11-22 13:02:10,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-22 13:02:10,903 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:02:10,903 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:02:11,119 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:02:11,120 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:02:11,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:02:11,120 INFO L82 PathProgramCache]: Analyzing trace with hash 944519591, now seen corresponding path program 1 times [2020-11-22 13:02:11,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:02:11,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [158152066] [2020-11-22 13:02:11,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/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 13:02:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:02:11,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:02:11,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:02:11,363 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 13:02:11,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:02:11,389 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 13:02:11,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [158152066] [2020-11-22 13:02:11,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:02:11,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-22 13:02:11,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940810834] [2020-11-22 13:02:11,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:02:11,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:02:11,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:02:11,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:02:11,392 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand 5 states. [2020-11-22 13:02:11,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:02:11,594 INFO L93 Difference]: Finished difference Result 354 states and 517 transitions. [2020-11-22 13:02:11,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-22 13:02:11,595 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-22 13:02:11,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:02:11,601 INFO L225 Difference]: With dead ends: 354 [2020-11-22 13:02:11,602 INFO L226 Difference]: Without dead ends: 286 [2020-11-22 13:02:11,606 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:02:11,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-11-22 13:02:11,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 134. [2020-11-22 13:02:11,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-11-22 13:02:11,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 188 transitions. [2020-11-22 13:02:11,651 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 188 transitions. Word has length 25 [2020-11-22 13:02:11,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:02:11,651 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 188 transitions. [2020-11-22 13:02:11,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:02:11,652 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 188 transitions. [2020-11-22 13:02:11,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-22 13:02:11,662 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:02:11,663 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 13:02:11,880 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:02:11,880 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:02:11,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:02:11,880 INFO L82 PathProgramCache]: Analyzing trace with hash 740712497, now seen corresponding path program 1 times [2020-11-22 13:02:11,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:02:11,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [893220859] [2020-11-22 13:02:11,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-22 13:02:12,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:02:12,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:02:12,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:02:12,112 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 13:02:12,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:02:12,116 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 13:02:12,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [893220859] [2020-11-22 13:02:12,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:02:12,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 13:02:12,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747867854] [2020-11-22 13:02:12,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:02:12,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:02:12,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:02:12,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:02:12,118 INFO L87 Difference]: Start difference. First operand 134 states and 188 transitions. Second operand 5 states. [2020-11-22 13:02:12,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:02:12,328 INFO L93 Difference]: Finished difference Result 368 states and 521 transitions. [2020-11-22 13:02:12,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-22 13:02:12,329 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-11-22 13:02:12,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:02:12,331 INFO L225 Difference]: With dead ends: 368 [2020-11-22 13:02:12,331 INFO L226 Difference]: Without dead ends: 366 [2020-11-22 13:02:12,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:02:12,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2020-11-22 13:02:12,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 134. [2020-11-22 13:02:12,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-11-22 13:02:12,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 186 transitions. [2020-11-22 13:02:12,359 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 186 transitions. Word has length 26 [2020-11-22 13:02:12,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:02:12,360 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 186 transitions. [2020-11-22 13:02:12,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:02:12,360 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 186 transitions. [2020-11-22 13:02:12,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-22 13:02:12,361 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:02:12,361 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, 1, 1, 1] [2020-11-22 13:02:12,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 13:02:12,577 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:02:12,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:02:12,577 INFO L82 PathProgramCache]: Analyzing trace with hash 2030628178, now seen corresponding path program 1 times [2020-11-22 13:02:12,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:02:12,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999642575] [2020-11-22 13:02:12,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-22 13:02:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:02:12,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:02:12,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:02:12,801 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 13:02:12,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:02:12,813 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 13:02:12,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999642575] [2020-11-22 13:02:12,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:02:12,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 13:02:12,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877240219] [2020-11-22 13:02:12,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:02:12,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:02:12,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:02:12,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:02:12,816 INFO L87 Difference]: Start difference. First operand 134 states and 186 transitions. Second operand 5 states. [2020-11-22 13:02:12,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:02:12,916 INFO L93 Difference]: Finished difference Result 398 states and 551 transitions. [2020-11-22 13:02:12,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:02:12,916 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-22 13:02:12,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:02:12,919 INFO L225 Difference]: With dead ends: 398 [2020-11-22 13:02:12,919 INFO L226 Difference]: Without dead ends: 270 [2020-11-22 13:02:12,923 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:02:12,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-11-22 13:02:12,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 140. [2020-11-22 13:02:12,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-11-22 13:02:12,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 192 transitions. [2020-11-22 13:02:12,954 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 192 transitions. Word has length 30 [2020-11-22 13:02:12,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:02:12,956 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 192 transitions. [2020-11-22 13:02:12,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:02:12,957 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 192 transitions. [2020-11-22 13:02:12,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-22 13:02:12,960 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:02:12,960 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, 1, 1, 1] [2020-11-22 13:02:13,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-22 13:02:13,176 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:02:13,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:02:13,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1637601168, now seen corresponding path program 1 times [2020-11-22 13:02:13,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:02:13,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [709141982] [2020-11-22 13:02:13,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-22 13:02:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:02:13,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 13:02:13,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:02:13,398 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 13:02:13,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:02:13,419 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 13:02:13,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [709141982] [2020-11-22 13:02:13,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:02:13,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 13:02:13,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188864860] [2020-11-22 13:02:13,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:02:13,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:02:13,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:02:13,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:02:13,421 INFO L87 Difference]: Start difference. First operand 140 states and 192 transitions. Second operand 6 states. [2020-11-22 13:02:13,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:02:13,531 INFO L93 Difference]: Finished difference Result 432 states and 590 transitions. [2020-11-22 13:02:13,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:02:13,532 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-11-22 13:02:13,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:02:13,534 INFO L225 Difference]: With dead ends: 432 [2020-11-22 13:02:13,535 INFO L226 Difference]: Without dead ends: 298 [2020-11-22 13:02:13,536 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:02:13,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-11-22 13:02:13,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 144. [2020-11-22 13:02:13,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-11-22 13:02:13,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 196 transitions. [2020-11-22 13:02:13,575 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 196 transitions. Word has length 30 [2020-11-22 13:02:13,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:02:13,576 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 196 transitions. [2020-11-22 13:02:13,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:02:13,576 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 196 transitions. [2020-11-22 13:02:13,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-22 13:02:13,577 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:02:13,577 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, 1, 1, 1] [2020-11-22 13:02:13,796 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-22 13:02:13,797 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:02:13,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:02:13,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1895766606, now seen corresponding path program 1 times [2020-11-22 13:02:13,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:02:13,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1764620649] [2020-11-22 13:02:13,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-11-22 13:02:13,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:02:13,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:02:13,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:02:14,000 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 13:02:14,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:02:14,016 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 13:02:14,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1764620649] [2020-11-22 13:02:14,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:02:14,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 13:02:14,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063671428] [2020-11-22 13:02:14,017 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:02:14,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:02:14,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:02:14,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:02:14,018 INFO L87 Difference]: Start difference. First operand 144 states and 196 transitions. Second operand 4 states. [2020-11-22 13:02:14,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:02:14,102 INFO L93 Difference]: Finished difference Result 492 states and 672 transitions. [2020-11-22 13:02:14,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:02:14,104 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-11-22 13:02:14,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:02:14,106 INFO L225 Difference]: With dead ends: 492 [2020-11-22 13:02:14,106 INFO L226 Difference]: Without dead ends: 354 [2020-11-22 13:02:14,107 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:02:14,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-11-22 13:02:14,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 266. [2020-11-22 13:02:14,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-11-22 13:02:14,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 359 transitions. [2020-11-22 13:02:14,160 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 359 transitions. Word has length 30 [2020-11-22 13:02:14,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:02:14,161 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 359 transitions. [2020-11-22 13:02:14,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:02:14,161 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 359 transitions. [2020-11-22 13:02:14,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-22 13:02:14,162 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:02:14,162 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, 1, 1, 1, 1] [2020-11-22 13:02:14,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-22 13:02:14,376 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:02:14,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:02:14,376 INFO L82 PathProgramCache]: Analyzing trace with hash -112049588, now seen corresponding path program 1 times [2020-11-22 13:02:14,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:02:14,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974541846] [2020-11-22 13:02:14,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-11-22 13:02:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:02:16,038 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:02:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:02:17,586 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:02:17,733 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 13:02:17,734 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:02:17,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-22 13:02:18,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:02:18 BoogieIcfgContainer [2020-11-22 13:02:18,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:02:18,087 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:02:18,087 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:02:18,087 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:02:18,087 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:02:08" (3/4) ... [2020-11-22 13:02:18,089 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:02:18,189 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_afaef19d-4df1-49c5-9eb6-32aabbc98f35/bin/utaipan/witness.graphml [2020-11-22 13:02:18,189 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:02:18,191 INFO L168 Benchmark]: Toolchain (without parser) took 13000.71 ms. Allocated memory was 52.4 MB in the beginning and 107.0 MB in the end (delta: 54.5 MB). Free memory was 28.5 MB in the beginning and 76.4 MB in the end (delta: -47.9 MB). Peak memory consumption was 59.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:02:18,192 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 52.4 MB. Free memory was 34.6 MB in the beginning and 34.6 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:02:18,192 INFO L168 Benchmark]: CACSL2BoogieTranslator took 779.92 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 28.3 MB in the beginning and 41.7 MB in the end (delta: -13.4 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:02:18,193 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.41 ms. Allocated memory is still 65.0 MB. Free memory was 41.7 MB in the beginning and 38.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:02:18,193 INFO L168 Benchmark]: Boogie Preprocessor took 82.39 ms. Allocated memory is still 65.0 MB. Free memory was 38.7 MB in the beginning and 36.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:02:18,194 INFO L168 Benchmark]: RCFGBuilder took 2528.94 ms. Allocated memory is still 65.0 MB. Free memory was 36.4 MB in the beginning and 32.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:02:18,194 INFO L168 Benchmark]: TraceAbstraction took 9389.85 ms. Allocated memory was 65.0 MB in the beginning and 107.0 MB in the end (delta: 41.9 MB). Free memory was 32.0 MB in the beginning and 30.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 44.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:02:18,195 INFO L168 Benchmark]: Witness Printer took 103.09 ms. Allocated memory is still 107.0 MB. Free memory was 30.4 MB in the beginning and 76.4 MB in the end (delta: -46.0 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:02:18,198 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 52.4 MB. Free memory was 34.6 MB in the beginning and 34.6 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 779.92 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 28.3 MB in the beginning and 41.7 MB in the end (delta: -13.4 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 93.41 ms. Allocated memory is still 65.0 MB. Free memory was 41.7 MB in the beginning and 38.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 82.39 ms. Allocated memory is still 65.0 MB. Free memory was 38.7 MB in the beginning and 36.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2528.94 ms. Allocated memory is still 65.0 MB. Free memory was 36.4 MB in the beginning and 32.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9389.85 ms. Allocated memory was 65.0 MB in the beginning and 107.0 MB in the end (delta: 41.9 MB). Free memory was 32.0 MB in the beginning and 30.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 44.1 MB. Max. memory is 16.1 GB. * Witness Printer took 103.09 ms. Allocated memory is still 107.0 MB. Free memory was 30.4 MB in the beginning and 76.4 MB in the end (delta: -46.0 MB). Peak memory consumption was 4.3 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: [L62] int pumpRunning = 0; [L63] int systemActive = 1; [L241] int waterLevel = 1; [L242] int methaneLevelCritical = 0; [L612] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L835] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L908] int retValue_acc ; [L909] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L434] int retValue_acc ; [L437] retValue_acc = 1 [L438] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L915] tmp = valid_product() [L917] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L337] int splverifierCounter ; [L338] int tmp ; [L339] int tmp___0 ; [L340] int tmp___1 ; [L341] int tmp___2 ; [L344] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L346] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L348] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L354] tmp = __VERIFIER_nondet_int() [L356] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L259] COND TRUE waterLevel < 2 [L260] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L364] tmp___0 = __VERIFIER_nondet_int() [L366] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L271] COND FALSE !(\read(methaneLevelCritical)) [L274] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L374] tmp___2 = __VERIFIER_nondet_int() [L376] COND TRUE \read(tmp___2) [L233] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L70] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L77] COND TRUE \read(systemActive) [L99] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L102] COND TRUE ! pumpRunning [L196] int retValue_acc ; [L197] int tmp ; [L198] int tmp___0 ; [L321] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L324] COND FALSE !(waterLevel < 2) [L328] retValue_acc = 0 [L329] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L202] tmp = isHighWaterSensorDry() [L204] COND FALSE !(\read(tmp)) [L207] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L209] retValue_acc = tmp___0 [L210] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L104] tmp = isHighWaterLevel() [L106] COND TRUE \read(tmp) [L127] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L810] int tmp ; [L811] int tmp___0 ; [L280] int retValue_acc ; [L283] retValue_acc = methaneLevelCritical [L284] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L815] tmp = isMethaneLevelCritical() [L817] COND TRUE \read(tmp) [L151] int retValue_acc ; [L154] retValue_acc = pumpRunning [L155] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L819] tmp___0 = isPumpRunning() [L821] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec1_product36.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 83 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.1s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 633 SDtfs, 898 SDslu, 1130 SDs, 0 SdLazy, 123 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 436 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=266occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 792 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 250 NumberOfCodeBlocks, 250 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 420 ConstructedInterpolants, 0 QuantifiedInterpolants, 17502 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1811 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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...